ZXGD3009DYTA - 40V 1A Low-Side Gate Driver SOT-363 | Diodes Inc
部品番号: ZXGD3009DYTA ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 10 | $0.55 | $5.50 |
| 100 | $0.41 | $41.00 |
| 500 | $0.33 | $165.00 |
| 1,000 | $0.27 | $270.00 |
ZXGD3009DYTA 概要
A gate driver is a specialized buffer/amplifier placed between a low-power controller (MCU, PWM IC, gate-driver logic output) and the gate of a power MOSFET, IGBT, or GaN transistor. Without such a buffer, the controller output cannot source or sink enough instantaneous current to charge and discharge the gate's Miller capacitance quickly, resulting in slow edges and high switching loss. Gate drivers sit in the broader hierarchy: gate driver -> MOSFET/IGBT driver -> power management IC -> semiconductor.
Key specifications of the ZXGD3009DYTA include a wide VCC range that minimizes on-state losses, near-zero quiescent current, an emitter-follower output topology that is rugged against latch-up and shoot-through, and an optimized SOT-363 pin-out that simplifies PCB layout and reduces parasitic trace inductance. The separate Q1 (source) and Q2 (sink) outputs let the designer program asymmetric rise and fall times for EMI control or for paralleled-MOSFET sharing.
The ZXGD3009DYTA's emitter-follower architecture is intrinsically simple and tolerant of wide supply rails; it avoids the cross-conduction concerns of totem-pole CMOS drivers. It is commonly used as a low-side switch driver in DC-DC converters, motor-control half-bridges, hot-swap controllers, solenoid and relay drivers, and class-D audio output stages where gate-charge slew control is critical.
Typical applications include PFC boost stages, synchronous-rectifier drivers in SMPS, and high-current load switches in industrial and telecom power systems. By tailoring source and sink resistors the designer can deliberately slow the turn-on edge to control ringing or speed up the turn-off edge to minimize dead time.
When designing with this part, place the gate-drive resistors as close to the Q1/Q2 pins as possible and keep the high-current gate loop area minimal to suppress parasitic inductance. Verify that the controller's logic output can swing within the driver's input common-mode range, and add a small base resistor on the input if the source impedance is too low to set a defined input current.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: ZXGD3009DYTA — 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。
クイック比較ツール — 並列比較する代替部品を選択:
ZXGD3009DY
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PMGD400UN
✅ ドロップイン📋 参考代替品（カタログ未掲載）
NTD4906N
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ZXGD3009DYTA 最大定格＆電気的特性
| Product Type | Low-side gate driver IC |
| 出力数 | 2 (separate source and sink) |
| トポロジー | Non-inverting emitter-follower buffer |
| Output Current (typical) | 500 mA into low-Z gate from 10 mA input |
| VCC Range (max datasheet rating) | 40 V |
| Input Drive Current (typical) | 10 mA |
| 静止電流 | Near-zero |
| Configuration | Single channel, low-side |
| Rise/Fall Control | Independent Q1 source / Q2 sink outputs |
| Latch-up / Shoot-through | Rugged emitter-follower topology (immune) |
| パッケージ | SOT-363 (SC-88), 6-pin |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
| Packaging | Tape & Reel (TA suffix) |
ZXGD3009DYTA ピン構成
| ピン 1 | IN — Logic input drive (~10 mA typical) |
| ピン 2 | Q1 (Source) — Source current output to MOSFET gate (turn-on) |
| ピン 3 | GND — Ground reference |
| ピン 4 | VCC — Supply voltage (up to 40 V) |
| ピン 5 | Q2 (Sink) — Sink current output from MOSFET gate (turn-off) |
| ピン 6 | NC — Not connected (per datasheet pinout) |
主な用途
ZXGD3009DYTA の用途: 6 件s: Synchronous-Rectifier Driver in SMPS, PFC Boost-Stage Gate Driver, Motor-Drive Half-Bridge (Low-Side), Class-D Audio Output Stage, Hot-Swap and Load-Switch Controller, Solenoid and Relay Driver.
Synchronous-Rectifier Driver in SMPS
The ZXGD3009DYTA is well suited to drive the low-side synchronous-rectifier MOSFET in 12 V to 1 V point-of-load converters and 24 V industrial DC-DC stages. Its 40 V VCC rating tolerates ringing on the rectified bus, while the 500 mA typical output current rapidly charges the gate charge of common 30-100 V MOSFETs such as the BSZ0901NS. Independent Q1 (source) and Q2 (sink) outputs let the designer slow the turn-on edge to suppress ringing and speed the turn-off edge to minimize dead-time body-diode conduction. The emitter-follower topology is latch-up and shoot-through immune, eliminating the cross-conduction losses that plague CMOS drivers at high dV/dt. SOT-363 packaging keeps the driver adjacent to the MOSFET gate, reducing parasitic gate-loop inductance for cleaner switching waveforms.
おすすめ
PFC Boost-Stage Gate Driver
In power-factor-correction boost converters operating from universal mains, the ZXGD3009DYTA drives the boost MOSFET with a wide safety margin up to 40 V supply. Its near-zero quiescent current improves light-load efficiency, an increasingly important metric for 80 PLUS and ENERGY STAR compliance. The high 500 mA gate-drive capability transitions the boost switch in tens of nanoseconds, reducing switching loss at 100 kHz to 1 MHz switching frequencies typical of totem-pole and interleaved PFC stages. The non-inverting input simplifies direct connection to a PFC controller such as the UCC28180 or NCP1654. SOT-363 placement adjacent to the MOSFET gate minimizes the high-current loop area, suppressing ringing and EMI that would otherwise require snubbers.
おすすめ
Motor-Drive Half-Bridge (Low-Side)
The ZXGD3009DYTA drives the low-side MOSFET in brushed-DC and stepper-motor half-bridge stages where its 40 V rating covers 12 V and 24 V automotive and industrial rails. Its emitter-follower topology tolerates the large back-EMF transients of inductive loads without latch-up. Separate source/sink outputs allow asymmetric gate-drive timing to control EMI in motor-cable harnesses while maintaining fast turn-off for current recirculation through the high-side body diode or synchronous FET. The SOT-363 footprint suits space-constrained BLDC fan, pump, and small-appliance motor-control PCBs. Designers can add a small base resistor on the input to set a defined input current when driven from a 3.3 V MCU GPIO with limited source capability.
おすすめ
Class-D Audio Output Stage
In half-bridge and full-bridge Class-D audio amplifiers, the ZXGD3009DYTA can be used as the low-side gate driver for the output MOSFETs where its fast switching edges minimize dead-time and thus reduce total harmonic distortion. The separate Q1 source and Q2 sink outputs permit precise dead-time programming with two external resistors, allowing the designer to balance efficiency against THD. The 40 V VCC rating covers ±15 V rails common in 50 W to 100 W automotive Class-D amplifiers. Its latch-up immunity protects against the high dV/dt transitions on the switching node that routinely exceed 10 V/ns in Class-D output stages.
おすすめ
Hot-Swap and Load-Switch Controller
The ZXGD3009DYTA drives the low-side N-channel MOSFET in -48 V telecom hot-swap and 12 V/24 V bus load-switch applications where controlled turn-on reduces inrush current. Its 40 V rating covers the typical 12 V to 36 V industrial and telecom rails, and the 500 mA gate current charges the gate capacitance quickly once the hot-swap controller enables the output. Near-zero quiescent current minimizes standby power in always-on systems. The non-inverting, single-input structure simplifies interface with hot-swap controllers such as the LM5060 or TPS2660, which produce an active-high PG output to gate the load MOSFET.
おすすめ
Solenoid and Relay Driver
Industrial solenoid valves, latching relays, and contactor coils benefit from the ZXGD3009DYTA's high gate-drive current to switch the low-side N-channel MOSFET that energizes the coil. Its 40 V rating supports 24 V industrial rails common in PLC and process-control systems, while the separate source/sink outputs allow a fast turn-off clamp resistor across the coil to dissipate flyback energy. The non-inverting topology interfaces directly with 3.3 V or 5 V logic from a microcontroller or PLC output module. SOT-363 packaging supports high-density multi-channel solenoid-driver PCBs used in factory automation.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ZXGD3009DYTA — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ZXGD3009DY | ZXGD3009E6TA | ZXGD3001E6QTA | PMGD400UN | NTD4906N |
|---|---|---|---|---|---|---|
| Brand | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | NXP Semiconductors | onsemi |
| Package | SOT-363 (SC-88), 6-pin | SOT-363 (same) | SOT-23-6 (different footprint) | SOT-23-6 (different footprint) | SOT-363 (same) | SOT-363 (same) |
| Product Type | Gate driver IC (low-side) | Gate driver IC (low-side) | Gate driver IC (low-side) | Gate driver IC (low-side) | Dual N-channel MOSFET (the switch, not driver) | N-channel MOSFET (the switch, not driver) |
| Maximum VCC / Drain Voltage | 40 V | 40 V | 40 V | 40 V | 30 V (drain-source) | 30 V (drain-source) |
| Topology | Emitter-follower buffer | Emitter-follower buffer | Emitter-follower buffer | Emitter-follower buffer | N-channel MOSFET (not a driver) | N-channel MOSFET (not a driver) |
| Separate Source/Sink Outputs | Yes (Q1 source, Q2 sink) | Yes (Q1 source, Q2 sink) | Yes | Yes | N/A (MOSFET) | N/A (MOSFET) |
主な差別化要因
- Separate Q1 source and Q2 sink outputs for independent edge control （vs ZXGD3001E6QTA)
- Latch-up and shoot-through immunity from emitter-follower topology （vs PMGD400UN (NXP CMOS driver family))
- Compact SOT-363 footprint with optimized low-inductance pin-out （vs ZXGD3009E6TA (SOT-23-6))
設計ノート
Place the ZXGD3009DYTA as close as physically possible to the MOSFET gate it drives to minimize the high-current gate-loop area. The SOT-363 package's optimized pin-out places input, Q1 source, Q2 sink, VCC, and GND so that the source and sink loops share a common ground return. Keep the gate-drive trace short (under 10 mm where practical) and use a ground plane directly under the driver. Parasitic source inductance in the gate-drive loop causes ringing and overshoot that can exceed the MOSFET VGS rating on fast edges.
Do not connect the input pin directly to a low-impedance 3.3 V or 5 V logic output without considering the input current. The ZXGD3009DYTA expects ~10 mA of input drive current through its emitter-follower input; if the source impedance is too low, input current can exceed the safe operating area. Add a series base resistor (typically 100-470 ohm) on the input pin to set the input current when driving from a low-impedance logic output. The datasheet's optimized pin-out is documented in the SOT-363 mechanical drawing on page 1.
The ZXGD3009DYTA dissipates very little power itself (near-zero quiescent current), but the gate charge transferred at high switching frequencies still produces dissipation in the external source/sink resistors. Estimated: with Qg = 50 nC, switching frequency fsw = 1 MHz, and gate resistor Rg = 10 ohm, the resistor dissipation is approximately P = Qg * fsw * Vgs = 50e-9 * 1e6 * 10 V = 0.5 W. Choose 0805 or larger resistors and provide adequate copper for thermal relief when driving large MOSFETs at high frequency.
For synchronous-rectifier and half-bridge applications, place a 10 nF to 100 nF ceramic bypass capacitor directly between the VCC pin (pin 4) and GND (pin 3) of the SOT-363 package, with trace lengths under 2 mm. This high-frequency bypass supplies the transient current needed to charge and discharge the gate capacitance without disturbing the VCC rail. A larger 1 uF to 10 uF bulk capacitor should be placed within 5 mm of the package for low-frequency decoupling. Avoid running signal traces under the driver or its bypass capacitors.
コンプライアンス情報
RoHS-compliant lead-free SOT-363 package per Diodes Incorporated product page. Halogen-free status not explicitly listed in retrieved data; operating temperature range and MSL level not provided in Verified Web Data and flagged as [DATA_NEEDED].
