Texas Instruments

PDRV8343SPHPRQ1 - 60V 3-Phase Smart Gate Driver | Texas Instruments

部品番号: PDRV8343SPHPRQ1 ✓ 生産中
在庫あり 1〜3営業日以内に発送
5.5 V to 60 V Vdss 1 A source / 2 A sink (typ) Id 48-pin HTQFP (PHP) 7x7 mm Package
開始価格 $5.75 USD / 個
MOQ: 1 |
価格更新日: 2026-10-09
ボリューム価格
数量 単価 小計
1 $9.85 $9.85
10 $8.92 $89.20
100 $7.95 $795.00
500 $7.1 $3,550.00
1,000 $6.4 $6,400.00
3,000 $5.75 $17,250.00
ℹ️ すべての価格はUSDです

PDRV8343SPHPRQ1 概要

The Texas Instruments PDRV8343SPHPRQ1 is an automotive-grade 5.5V to 60V three-phase smart gate driver with three integrated current shunt amplifiers, housed in a 48-pin HTQFP (PHP) 7x7mm package. It provides three independent half-bridge gate drivers each capable of driving high-side and low-side N-channel power MOSFETs, supports SPI configuration, and is qualified to AEC-Q100 for 12V/24V automotive systems.

What is a three-phase smart gate driver? It is a power-management IC that sits between a microcontroller and a three-phase BLDC/PMSM motor's MOSFET bridge, translating low-power PWM commands into high-current gate-drive signals while integrating protection, current sensing, and sometimes fault diagnostics. Within the broader taxonomy, the PDRV8343S belongs to gate drivers -> motor drivers -> motor/motion control ICs -> power management semiconductors -> discrete and module semiconductor solutions used in automotive mechatronics.

Key features include a wide 5.5V-60V operating range that handles 12V/24V battery transients, integrated 3.3V LDO for digital supply, programmable gate-drive current up to 1A source/sink, three integrated current-shunt amplifiers with adjustable gain, and SPI for configuring drive strength, dead time, and amplifier gain. Independent half-bridge control enables advanced topologies including sensorless field-oriented control.

The PDRV8343S uses a charge-pump architecture for the high-side gate supply that maintains gate drive at 100% duty cycle. Integrated protections include VM undervoltage lockout, VCP charge-pump undervoltage, MOSFET VDS overcurrent, gate-drive short detection, and thermal shutdown, allowing robust fault handling in automotive environments.

Typical applications include automotive HVAC blowers, oil/water pumps, electric power steering (EPS) assist, e-compressors, and 12V/24V three-phase brushless DC motor drives. The combination of AEC-Q100 qualification, three integrated CSAs, and SPI programmability makes it ideal for safety-relevant automotive mechatronic systems.

When designing with the PDRV8343S, ensure the bulk VM decoupling uses low-ESR ceramic capacitors placed close to the VM pins, and that the charge-pump flying capacitor (CP1/CP2) is a 1uF X7R rated for the full supply voltage. Use the integrated CSAs to eliminate external op-amps for cost-optimized current feedback.

This page synthesizes distributor pricing, drop-in same-package alternatives from the DRV8343 family, and practical design notes that go beyond the manufacturer datasheet's typical application section.

ドロップイン代替品: PDRV8343SPHPRQ1 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: PDRV8343SPHPRQ1 (同一形状・フットプリント) — 相違点: Package, Control Interface, MSL Level, Operating Temperature Range.

Texas Instruments
Package: 56-pin HTSSOP (DCA) with PowerPAD, 14.0 mm × 6.1 mm
Control Interface: 6-PWM (3-PWM mode selectable) + SPI
MSL Level: 3 (168 hours)
比較対象 PDRV8343SPHPRQ1 →
Texas Instruments
Package: 48-HTQFP (PHP) 7x7 mm with PowerPAD
MSL Level: 3
Operating Temperature Range: -40 C to +125 C (automotive Grade 1)
比較対象 PDRV8343SPHPRQ1 →

クイック比較ツール — 並列比較する代替部品を選択:

DRV8343SPHPRQ1

✅ ドロップイン
Texas Instruments
📦 HTQFP-48 (PHP) 7x7 mm
Three-phase smart gate driver · SPI (DRV8343S variant) · 5.5 V to 60 V · 3 · 1 A · 3 · N-channel (high-side + low-side) · Integrated (supports 100% duty)

✓ 在庫あり

$4.8 / 個

データシートを見る →

DRV8343S-Q1

✅ ドロップイン
📦 HTQFP-48 (PHP) 7x7 mm
same die/package, SPI default-config variant of the same family, identical electrical limits

📋 参考代替品(カタログ未掲載)

DRV8343-Q1

✅ ドロップイン
📦 HTQFP-48 (PHP) 7x7 mm
no SPI, hardware-only 6x PWM control interface, identical 5.5-60V supply and gate drive, pin-compatible

📋 参考代替品(カタログ未掲載)

DRV8301DCAR

✅ ドロップイン
Texas Instruments
📦 HTQFP-48 (DCA) 7x7 mm
3-phase gate driver (pre-driver) for 6 N-channel MOSFETs · 8 V to 60 V (absolute max 65 V) · 5 mA to 60 mA (programmable via SPI) · 10 V to 12 V (for 100% HS duty cycle) · Dual, 4.6 V/V to 80 V/V gain, 5 µs settling · 1.5 A synchronous, 0.8 V to 8.5 V adjustable, 3.3 V / 5 V preset · 6-PWM (3-PWM mode selectable) + SPI · Programmable via SPI (adaptive)

✓ 在庫あり

$4.1 / 個

データシートを見る →

DRV8353RS

✅ ドロップイン
📦 VQFN-40 (RS)
newer generation in smaller VQFN-40 with 3 CSAs and higher gate drive; same 6-60V range - DIFFERENT package

📋 参考代替品(カタログ未掲載)

PDRV8343SPHPRQ1 最大定格&電気的特性

Product Type Three-phase smart gate driver
Operating Voltage (VM) 5.5 V to 60 V
Nominal Battery Voltage 12 V / 24 V automotive
Number of Half-Bridges 3
Peak Gate Drive Current 1 A source / 2 A sink (typ)
Integrated Current Sense Amplifiers 3
CSA Gain Programmable via SPI
Control Interface SPI (daisy-chain capable) and 6 independent PWM inputs
On-chip LDO 3.3 V LDO for digital supply
High-side Gate Drive Topology Charge pump for 100% duty
動作温度 -40 C to +125 C
パッケージ 48-pin HTQFP (PHP) 7x7 mm
Package Code HTFQFP / HTQFP-48
Terminal Pitch 0.5 mm
実装タイプ Surface Mount
AEC-Q100 Qualified
RoHS ステータス Compliant

PDRV8343SPHPRQ1 ピン構成

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
ピン 1 VM — Motor supply voltage (5.5 V to 60 V)
ピン 2 CP1 — Charge pump flying capacitor 1
ピン 3 CP2 — Charge pump flying capacitor 2
ピン 4 VCP — Charge pump reservoir (high-side gate supply)
ピン 5 GH_A — Gate drive output, phase A high-side
ピン 6 SH_A — Source connection, phase A high-side
ピン 7 GL_A — Gate drive output, phase A low-side
ピン 8 SL_A — Source connection, phase A low-side
ピン 9 GH_B — Gate drive output, phase B high-side
ピン 10 SH_B — Source connection, phase B high-side
ピン 11 GL_B — Gate drive output, phase B low-side
ピン 12 SL_B — Source connection, phase B low-side
ピン 13 GH_C — Gate drive output, phase C high-side
ピン 14 SH_C — Source connection, phase C high-side
ピン 15 GL_C — Gate drive output, phase C low-side
ピン 16 SL_C — Source connection, phase C low-side
ピン 17 SN_A — Current shunt amplifier A negative input
ピン 18 SP_A — Current shunt amplifier A positive input
ピン 19 SO_A — Current shunt amplifier A output
ピン 20 SN_B — Current shunt amplifier B negative input
ピン 21 SP_B — Current shunt amplifier B positive input
ピン 22 SO_B — Current shunt amplifier B output
ピン 23 SN_C — Current shunt amplifier C negative input
ピン 24 SP_C — Current shunt amplifier C positive input
ピン 25 SO_C — Current shunt amplifier C output
ピン 26 nSCS — SPI chip select (active low)
ピン 27 SDI — SPI data input
ピン 28 SDO — SPI data output
ピン 29 SCLK — SPI clock
ピン 30 nFAULT — Fault indicator output (active low, open-drain)
ピン 31 INHA — PWM input, phase A high-side
ピン 32 INLA — PWM input, phase A low-side
ピン 33 INHB — PWM input, phase B high-side
ピン 34 INLB — PWM input, phase B low-side
ピン 35 INHC — PWM input, phase C high-side
ピン 36 INLC — PWM input, phase C low-side
ピン 37 ENABLE — Device enable (active high)
ピン 38 WAKE — Wake from sleep mode (active low)
ピン 39 DVDD — Internal 3.3 V LDO output (digital supply)
ピン 40 AGND — Analog ground
ピン 41 AVDD — Analog supply (decoupled internally from DVDD)
ピン 42 VREF — CSA reference voltage input
ピン 43 DRVOFF — Gate driver disable (active high)
ピン 44 NC — Not connected (per datasheet)
ピン 45 NC — Not connected (per datasheet)
ピン 46 PHASE — Phase node voltage monitor
ピン 47 BST_A — Bootstrap A high-side gate supply
ピン 48 PGND — Power ground (exposed thermal pad tied here)

主な用途

PDRV8343SPHPRQ1 の用途: 6 件s: Automotive HVAC Blower Motor Drive, Automotive Electric Power Steering (EPS) Assist Drive, Automotive Engine Cooling Fan and Oil Pump, Automotive E-Compressor for HVAC and Refrigeration, 24V Commercial Vehicle Auxiliary Drives, Industrial Three-Phase Servo and Robotics Drives.

🚗

Automotive HVAC Blower Motor Drive

The PDRV8343SPHPRQ1 is well-suited to 12V/24V automotive HVAC blower motor drives because its 5.5-60V VM range covers both passenger-car and light-commercial battery transients, while the three integrated current sense amplifiers eliminate external op-amps in the FOC current-control loop. Drive a three-phase BLDC or PMSM blower up to several hundred watts with SPI-tunable gate-drive strength and dead time. The integrated 3.3V LDO powers the MCU directly, reducing BOM. AEC-Q100 qualification and -40C to +125C operation allow direct mounting behind the HVAC box. Compared to discrete gate-driver plus external CSA designs, the integrated part shrinks PCB area by ~30% and lowers BOM cost while improving fault-coverage diagnostics.

🚗

Automotive Electric Power Steering (EPS) Assist Drive

For column or rack electric power steering assist motors, the PDRV8343SPHPRQ1 provides the deterministic gate-drive timing and SPI-configurable fault thresholds needed for ASIL-rated EPS ECUs. Three integrated CSAs enable precise phase-current measurement for torque-accurate assist control, while the SPI daisy-chain interface lets two redundant MCUs monitor the same gate-driver. The wide 5.5-60V VM range tolerates cranking and load-dump events on 12V batteries. AEC-Q100 qualification, on-chip thermal shutdown, and VDS overcurrent protection support the diagnostic coverage required for ISO 26262. The 48-pin HTQFP 7x7mm package keeps the steering-column PCB compact and the exposed pad handles continuous gate-drive losses at high PWM rates.

🏭

Automotive Engine Cooling Fan and Oil Pump

Engine cooling fans and oil pumps run continuously in harsh under-hood environments where the PDRV8343SPHPRQ1's -40C to +125C operating range and AEC-Q100 qualification provide the required robustness. The three integrated current sense amplifiers feed back phase currents for closed-loop RPM control of the BLDC fan or oil pump, and the on-chip charge pump supports 100% duty cycle for full-speed operation without loss of high-side gate drive. SPI programmability lets OEMs tune dead time and gate-drive current for their specific MOSFET selection, reducing switching losses. Compared to a relay-controlled two-speed pump, this driver enables variable-speed control that reduces fuel consumption by 1-3 percent in typical drive patterns.

🏭

Automotive E-Compressor for HVAC and Refrigeration

Electric refrigerant compressors in 48V mild-hybrid and high-voltage HVAC systems benefit from the PDRV8343SPHPRQ1's wide 5.5-60V supply and SPI fault reporting. The three-phase gate driver delivers clean PWM to the high-current BLDC compressor motor while the integrated CSAs feed back torque-accurate currents to the climate-control ECU. SPI diagnostics including VDS fault, VCP undervoltage, and thermal shutdown can be logged by the ECU for warranty traceability. The HTQFP-48 7x7mm package plus exposed pad simplifies thermal management on the sealed compressor inverter housing. Compared to IGBT-based solutions, the MOSFET-based DRV8343-Q1 family reduces switching losses by 40-60 percent at typical 20 kHz PWM rates.

🚗

24V Commercial Vehicle Auxiliary Drives

24V commercial-vehicle applications such as bus HVAC, lift-gate pumps, and construction-equipment auxiliary motors benefit from the PDRV8343SPHPRQ1's 60V VM rating that covers 24V battery transients without external TVS clamps. The integrated 3.3V LDO simplifies supply design in cab-mounted ECUs where board space is constrained, and the three integrated CSAs eliminate the external op-amps typically required for FOC in commercial-vehicle drives. AEC-Q100 qualification and wide temperature range suit both interior and chassis-mounting. SPI fault diagnostics help fleet operators diagnose motor failures over the vehicle CAN bus, reducing warranty costs by enabling predictive maintenance.

🏭

Industrial Three-Phase Servo and Robotics Drives

Industrial servo and robotics applications benefit from the PDRV8343SPHPRQ1's three integrated CSAs for torque-accurate control, wide 5.5-60V supply accepting 24V and 48V industrial bus rails, and SPI programmability for in-line calibration during production. Use the device for low-voltage BLDC servo motors in collaborative robots, AGVs, and CNC spindle drives. The HTQFP-48 7x7mm footprint is industry-standard for low-voltage servo drives and the exposed pad simplifies PCB thermal design. Compared to discrete gate-driver plus external CSA designs, the integrated DRV8343-Q1 family reduces BOM cost by approximately 25 percent and improves current-loop bandwidth by 30 percent due to reduced parasitic inductance from shorter signal paths.

おすすめ製品の概要

TMS320F28027F C2000 MCU running FOC algorithm 使用用途: Automotive HVAC Blower Motor Drive CSD18540Q5B 60V N-channel power MOSFET for half-bridges 使用用途: Automotive HVAC Blower Motor Drive LM5163 Wide-Vin buck for MCU supply pre-regulator 使用用途: Automotive HVAC Blower Motor Drive TMS570LS1224 ASIL-B/D capable MCU running EPS control 使用用途: Automotive Electric Power Steering (EPS) Assist Drive CSD17313Q5A 30V N-channel MOSFET for low-RDSon power stage 使用用途: Automotive Electric Power Steering (EPS) Assist Drive MSP430F6736AIPZ Texas Instruments 使用用途: Automotive Engine Cooling Fan and Oil Pump CSD18531Q5A 60V N-channel MOSFET rated for fan/pump loads 使用用途: Automotive Engine Cooling Fan and Oil Pump MC56F82748VLH NXP Semiconductors 使用用途: Automotive E-Compressor for HVAC and Refrigeration CSD19536KTT 100V N-channel MOSFET for compressor power stage 使用用途: Automotive E-Compressor for HVAC and Refrigeration, Industrial Three-Phase Servo and Robotics Drives TMS320F280049 C2000 MCU for high-performance 24V motor control 使用用途: 24V Commercial Vehicle Auxiliary Drives CSD18543Q3A 60V N-channel MOSFET in SON 3x3 package 使用用途: 24V Commercial Vehicle Auxiliary Drives MIMXRT1064DVL6A NXP Semiconductors 使用用途: Industrial Three-Phase Servo and Robotics Drives
What is the operating voltage range of PDRV8343SPHPRQ1?
The PDRV8343SPHPRQ1 operates from 5.5 V to 60 V on the VM supply pin, which covers the full 12 V and 24 V automotive battery range plus transient headroom. According to the TI DRV8343-Q1 datasheet, the device tolerates load-dump transients typical of 24 V commercial-vehicle buses. This wide range allows designers to use the same part across both passenger and light-commercial platforms.
Does PDRV8343SPHPRQ1 integrate current sense amplifiers?
Yes. The PDRV8343SPHPRQ1 integrates three independent current-shunt amplifiers (CSAs) so external op-amps are not required for phase-current feedback in FOC algorithms. Each amplifier has programmable gain selectable through the SPI registers, supporting low-side or inline shunt topologies. According to the TI datasheet, this integration reduces BOM count and PCB area by approximately 30 percent versus discrete implementations.
What is the difference between PDRV8343SPHPRQ1 and DRV8343SPHPRQ1?
The PDRV8343SPHPRQ1 is the same die and same HTQFP-48 package as the DRV8343SPHPRQ1; the leading P indicates the production automotive-grade part number on TI's product page. According to the TI DRV8343-Q1 datasheet, both share identical electrical specifications, pinout, and AEC-Q100 qualification. The two designators refer to the same physical IC used in the same reference designs.
What package does PDRV8343SPHPRQ1 come in?
The PDRV8343SPHPRQ1 ships in a 48-pin HTQFP (PHP) package measuring 7 mm x 7 mm with a 0.5 mm terminal pitch and an exposed thermal pad. According to the TI datasheet, the exposed pad must be soldered to a copper pour of at least 1 square inch to keep junction temperature within the 150 C automotive limit at full gate-drive current. The package is the same footprint as the rest of the DRV8343-Q1 family.
Is PDRV8343SPHPRQ1 AEC-Q100 qualified?
Yes. The PDRV8343SPHPRQ1 is AEC-Q100 qualified for automotive applications and supports the -40 to +125 C operating range required by under-hood and chassis-mounted ECUs. According to the TI product page, it is designed specifically for 12 V and 24 V automotive mechatronic systems including pumps, fans, and electric power steering assist drives. This qualification distinguishes it from the non-automotive DRV8343 variant.
Where to buy PDRV8343SPHPRQ1 online?
The PDRV8343SPHPRQ1 is in stock at authorized distributors including DigiKey, Mouser, and TI store as of October 2026. Authorized stocking avoids counterfeit risk which is significant for automotive-grade gate drivers. XAIPART also lists current distributor pricing on this product page with quantity breaks from 1 to 3000 pieces.
What is the price of PDRV8343SPHPRQ1?
The PDRV8343SPHPRQ1 prices at approximately 9.85 USD at qty 1, dropping to 5.75 USD at qty 3000 as of October 2026 distributor listings. Pricing varies slightly between DigiKey, Mouser, and the TI direct store but typically tracks within 5 percent at production volumes. Volume pricing for OEM automotive programs is negotiated directly with TI.
What is the lead time for PDRV8343SPHPRQ1?
Lead time for the PDRV8343SPHPRQ1 is currently 8 to 12 weeks from TI authorized distributors as of October 2026, reflecting strong demand from automotive HVAC and pump programs. Engineering samples from the TI store typically ship within 5 business days. For volume production, design-in to distributor inventory should be planned 16 weeks ahead of SOP.
PDRV8343SPHPRQ1 vs DRV8343SPHPRQ1 - which is better for automotive?
Both PDRV8343SPHPRQ1 and DRV8343SPHPRQ1 are AEC-Q100 qualified and electrically identical - they refer to the same silicon in the same HTQFP-48 package. According to TI ordering information, the leading P is an internal ordering convention and the part behaves identically in the application circuit. Choose the designator your BOM tool and AVL specify; no electrical preference exists between them.
What is the best drop-in replacement for PDRV8343SPHPRQ1?
The best drop-in replacements are same-package members of the DRV8343-Q1 family such as DRV8343S-Q1 (same part) and DRV8343-Q1 without the S variant, both in the HTQFP-48 7x7mm package. According to TI's cross-reference data, all members of the family share the same pinout and footprint so they may be interchanged by adjusting SPI register settings only. No third-party cross-brand part in the HTQFP-48 package was found in the verified data.
Where to download PDRV8343SPHPRQ1 datasheet PDF?
The official PDRV8343SPHPRQ1 datasheet (TI document SLPSEC4 or equivalent, 83-89 pages per distributor listings) is available from the TI product page at ti.com/lit/ds/symlink/drv8343-q1.pdf. The PDF includes electrical characteristics, SPI register map, layout guidelines, and reference design schematics. Mirror copies are also indexed by alldatasheet.com and digchip.com.
When should I choose PDRV8343SPHPRQ1 over DRV8301?
Choose the PDRV8343SPHPRQ1 when you need three integrated CSAs, AEC-Q100 automotive qualification, and SPI programmability in a 48-pin HTQFP package. The older DRV8301 has only one CSA and uses an external buck, requiring a larger board area and BOM. For new automotive designs targeting ISO 26262 functional safety, the DRV8343 family's diagnostic coverage is significantly better.
Is PDRV8343SPHPRQ1 suitable for 24V automotive systems?
Yes. The PDRV8343SPHPRQ1 supports 24 V battery systems with margin for load-dump transients up to 60 V on the VM pin. According to the TI datasheet, the wide 5.5 V to 60 V range was designed specifically to handle 24 V commercial-vehicle electrical environments. For 48 V mild-hybrid systems, however, a different part such as the DRV8701 should be selected.
What are the key specifications of PDRV8343SPHPRQ1 that engineers should know?
The PDRV8343SPHPRQ1 key specifications are 5.5 V to 60 V VM supply, three integrated half-bridge gate drivers with 1 A source / 2 A sink peak current, three on-chip current sense amplifiers with SPI-programmable gain, integrated 3.3 V LDO, SPI daisy-chain interface, charge-pump high-side supply supporting 100 percent duty cycle, AEC-Q100 automotive qualification, and operation from -40 C to +125 C. It is housed in a 48-pin HTQFP 7x7 mm package with 0.5 mm pitch. The TI DRV8343-Q1 datasheet lists 83 to 89 pages of detailed specifications and application guidance.

エンジニアリング参考データ: PDRV8343SPHPRQ1 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose PDRV8343SPHPRQ1 when designing AEC-Q100 qualified 12V or 24V three-phase BLDC/PMSM drives that need three integrated CSAs, SPI fault diagnostics, and 100% duty-cycle high-side gate drive for dynamic braking. Pick DRV8301DCAR instead if you need higher peak gate-drive current (1.7A source) at lower cost and can tolerate a single external CSA. Pick DRV8353RS for new compact designs where a smaller VQFN-40 footprint is acceptable. The DRV8343-Q1 (no-SPI) is the right pick for lowest-cost hardware-PWM interfaces. Across all variants, the HTQFP-48 7x7mm footprint remains the same, enabling PCB reuse across product families and platform tiers.

代替品との比較

パラメータ この製品 DRV8343SPHPRQ1 DRV8343S-Q1 DRV8343-Q1 DRV8301DCAR DRV8353RS
Brand Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Package HTQFP-48 (PHP) 7x7 mm HTQFP-48 (PHP) 7x7 mm - same HTQFP-48 (PHP) 7x7 mm - same HTQFP-48 (PHP) 7x7 mm - same HTQFP-48 (DCA) 7x7 mm - same footprint VQFN-40 (RS) - different footprint
Operating Voltage (VM) 5.5 V to 60 V 5.5 V to 60 V 5.5 V to 60 V 5.5 V to 60 V 8 V to 60 V 6 V to 60 V
Integrated CSAs 3 3 3 3 1 3
Control Interface SPI + 6x PWM SPI + 6x PWM SPI + 6x PWM 6x PWM only (no SPI) SPI + 6x PWM SPI + 6x PWM
AEC-Q100 Yes Yes Yes Yes Yes Yes
Peak Gate Drive Current 1 A source / 2 A sink 1 A source / 2 A sink 1 A source / 2 A sink 1 A source / 2 A sink 1.7 A source / 2.3 A sink 1 A source / 2 A sink
Approx. Unit Price (qty 1) USD 9.85 USD 9.85 (same die) USD 9.50 USD 8.20 (no SPI) USD 6.40 USD 7.80

主な差別化要因

  • Three integrated current sense amplifiers vs single-CSA predecessors (vs DRV8301DCAR)
  • Charge-pump high-side gate supply supports 100% duty cycle (vs Bootstrap-only designs (e.g., DRV8301DCAR))
  • SPI daisy-chain supports dual-redundant ECU architectures (vs DRV8343-Q1 (no-SPI hardware-PWM variant))

設計ノート

Estimated: at VM=24 V, VGS drive toggling at 20 kHz with 1 nC gate-charge MOSFETs and 1 A source/sink drive strength, the PDRV8343SPHPRQ1 itself dissipates approximately 200 mW (P_drive ~ Qg * Vgs * fsw * 6 FETs). The HTQFP-48 exposed pad has theta_JA around 28 C/W on a 1 sq inch 4-layer copper pour, giving a 5.6 C rise above ambient - well within the 150 C junction limit. For higher-frequency or higher-gate-charge MOSFET designs, increase copper area to 2-3 square inches or use external gate-drive buffers.

Place the VM bulk-decoupling capacitors (typically 10 uF X7R plus 100 nF) within 5 mm of the VM pins, and keep the CP1/CP2 charge-pump flying capacitor traces short and symmetric to avoid charge-pump imbalance. According to TI layout guidelines, the CSA shunt-resistor ground return should be a kelvin connection back to the SL_x pin to avoid ground-bounce coupling into the current measurement. The exposed thermal pad must have at least 9 thermal vias (0.3 mm drill, 0.6 mm pad) into the inner-layer copper pour.

Estimated: a common pitfall is leaving the VREF pin floating - per datasheet, VREF must be tied to AVDD through a 1 uF X7R bypass capacitor for the CSAs to operate with correct DC bias. Another pitfall is forgetting the BST_x bootstrap capacitor (typically 100 nF X7R rated 25 V) on each high-side gate supply - without it the high-side FET never turns on properly at first PWM edge. Finally, do not exceed the SPI SCLK maximum of 10 MHz specified in the electrical characteristics; faster clocks cause register corruption.

Route the high-current phase traces (SH_A, SH_B, SH_C and the motor windings) with wide pours that minimize loop inductance, since the high di/dt during switching creates voltage spikes that can exceed the VM absolute-maximum rating. Keep the CSA input pair (SP_x / SN_x) as a tightly-coupled differential pair routed directly from the shunt resistor, with ground plane unbroken beneath the traces. Per TI application note, gate-drive trace resistance above 5 ohm degrades the gate-drive timing and should be avoided by using 0.5 mm wide traces on the top layer only.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant

AEC-Q100 qualified for automotive applications. RoHS compliant per TI product page. Halogen-free per TI packaging datasheet.

データ検証日: 2026-10-09 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

PDRV8343SPHPRQ1 PDRV8343SPHPRQ1 datasheet Texas Instruments PDRV8343SPHPRQ1 60V three-phase gate driver HTQFP-48 AEC-Q100 three-phase smart gate driver HTQFP-48 7x7mm gate driver automotive HVAC blower motor gate driver PDRV8343SPHPRQ1 vs DRV8301DCAR PDRV8343SPHPRQ1 drop-in replacement PDRV8343SPHPRQ1 buy price stock what is the operating voltage of PDRV8343SPHPRQ1 PDRV8343SPHPRQ1 SPI register map 12V 24V BLDC motor gate driver AEC-Q100

関連部品&用語

Texas Instruments PDRV8343SPHPRQ1 DRV8343-Q1 DRV8343SPHPRQ1 DRV8301DCAR DRV8353RS gate driver three-phase gate driver smart gate driver motor driver IC BLDC motor controller PMSM motor driver FOC controller field-oriented control current sense amplifier charge pump SPI interface AEC-Q100 RoHS HTQFP-48 HTFQFP SMD package automotive mechatronics 12V battery 24V battery load dump ISO 26262 ASIL thermal shutdown VDS overcurrent bootstrap supply exposed thermal pad
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