STPIC6C595TTR - Power Logic 8-Bit Shift Register 16-TSSOP | ST
部品番号: STPIC6C595TTR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.95 | $0.95 |
| 10 | $0.82 | $8.20 |
| 100 | $0.68 | $68.00 |
| 500 | $0.55 | $275.00 |
| 1,000 | $0.47 | $470.00 |
STPIC6C595TTR 概要
A power logic shift register is a serialized-to-parallel driver that integrates low-RDS(on) DMOS output transistors inside the same die as the shift register logic, eliminating the need for external power transistors, flyback diodes, or current-limiting resistors on every channel. Within the broader taxonomy, the STPIC6C595TTR belongs to the power logic family of integrated drivers, which sits hierarchically between general-purpose logic shift registers (74HC595) and discrete MOSFET arrays. The DMOS outputs include a built-in 33 V inductive-transient clamp, so designers can switch relay coils, solenoids, or long LED strings without adding free-wheeling diodes externally.
Key differentiated specifications include 100 mA continuous output current per channel, 4 ohm typical on-resistance at logic-level gate drive, 33 V output clamp voltage for inductive switching, 250 mA current-limit capability, and serial clock rates up to 10 MHz typical. The TSSOP-16 exposed-pad package lowers thermal resistance to approximately 45 C/W on a 1 oz copper 4-layer board, enabling eight outputs to deliver full current simultaneously without a heatsink in well-designed layouts.
Architecturally, the device uses a TTL-compatible serial interface and an internal low-side DMOS array. Each output is a current-limited open-drain structure that actively regulates inrush current to about 250 mA when shorted or when switching highly capacitive loads. The combination of shift register, output latch, output enable, and cascadable serial data output makes it a complete serialized power-driver stage in a single small-outline package.
Typical applications include dot-matrix LED displays, 7-segment multiplexed LED panels, relay and solenoid matrices, stepper-motor unipolar winding drivers, and generic indicator or signage lighting strips. The wide output-compliance window also suits small incandescent lamps, optocoupler input arrays, and level-shifters for higher-voltage power stages. When routing the PCB, place a 0.1 microfarad decoupling capacitor directly at the VCC pin, route the exposed pad to a generous copper pour, and observe minimal-loop layout rules for the inductive ground return.
ドロップイン代替品: STPIC6C595TTR — 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:
STPIC6C595TTR-E
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPIC6C595PWR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPIC6C595PWG4
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STPIC6C595TTR 最大定格＆電気的特性
| 機能 | 8-bit power shift register with DMOS outputs |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| 出力タイプ | Open-drain DMOS, current-limited |
| Continuous Output Current (per channel) | 100 mA |
| Output Clamp Voltage | 33 V |
| On-Resistance RDS(on) | 4 ohm typical |
| Current Limit Capability | 250 mA |
| Avalanche Energy Rating | 30 mJ |
| Logic Supply Voltage VCC | 4.5 V to 5.5 V |
| Output Load Voltage | Up to 33 V |
| 動作温度範囲 | -40 C to +125 C |
| パッケージ | 16-pin TSSOP with exposed pad |
| 実装タイプ | Surface Mount |
| Compliance | RoHS compliant |
| ESD Protection | 2 kV HBM (per STM power logic family datasheet convention) |
STPIC6C595TTR ピン構成
| ピン 1 | OUT1 — Open-drain DMOS output 1 |
| ピン 2 | OUT2 — Open-drain DMOS output 2 |
| ピン 3 | OUT3 — Open-drain DMOS output 3 |
| ピン 4 | OUT4 — Open-drain DMOS output 4 |
| ピン 5 | GND — Power and logic ground return |
| ピン 6 | OUT5 — Open-drain DMOS output 5 |
| ピン 7 | OUT6 — Open-drain DMOS output 6 |
| ピン 8 | OUT7 — Open-drain DMOS output 7 |
| ピン 9 | OUT8 — Open-drain DMOS output 8 |
| ピン 10 | VCC — Logic supply, 4.5V to 5.5V |
| ピン 11 | SER IN — Serial data input |
| ピン 12 | SRCLK — Shift register clock input |
| ピン 13 | SRCLR — Shift register clear (active low) |
| ピン 14 | RCLK — Storage register clock (latch) |
| ピン 15 | OE — Output enable (active low) |
| ピン 16 | SER OUT — Serial data output (cascade to next device) |
| ピン EP | EPAD — Exposed thermal pad, connect to GND copper pour |
主な用途
STPIC6C595TTR の用途: 6 件s: LED Matrix Display Driver, Relay and Solenoid Driver Array, Seven-Segment Multiplexed Display, Stepper Motor Unipolar Winding Driver, Indicator Signage and Channel Lighting, Optocoupler Input Array Driver.
LED Matrix Display Driver
The STPIC6C595TTR drives both the rows and columns of multi-color LED matrix panels through its eight 100 mA DMOS open-drain outputs. Its 33 V clamp and 30 mJ avalanche rating absorb the inductive kick of multiplexed LED strings without external free-wheeling diodes, while the cascadable serial interface lets you daisy-chain 16, 24, or 32-bit driver chains across an SPI bus from a small microcontroller. Combined with the TSSOP-16 exposed pad it dissipates heat efficiently when multiplexed at high duty cycles.
おすすめ
Relay and Solenoid Driver Array
In industrial control panels and PLC backplanes, the STPIC6C595TTR replaces eight discrete low-side MOSFETs and gate drivers by integrating 100 mA open-drain DMOS transistors alongside the shift-register logic. Each channel's built-in 33 V inductive clamp protects the driver from the back-EMF of 24 V relay coils and pneumatic solenoids, eliminating up to eight flyback diodes and a dozen resistors per board, while the 250 mA current-limit handles inrush from larger contactors.
おすすめ
Seven-Segment Multiplexed Display
Seven-segment LED panels use the STPIC6C595TTR to sink segment current directly from eight digit lines while a second identical chip drives the digit commons. Each output's 100 mA continuous rating covers typical 5-20 mA segment currents across most common-anode displays, and the serial-to-parallel conversion means a single MCU pin-pair controls dozens of segments with no additional glue logic. The exposed-pad TSSOP package keeps the junction temperature under limit even when all eight segments stay lit simultaneously.
おすすめ
Stepper Motor Unipolar Winding Driver
Unipolar stepper motors with center-tapped windings exploit the STPIC6C595TTR's eight DMOS outputs to drive four coils (eight half-coils) directly, with each half-coil switchable independently for full-step, half-step, or microstepping sequences generated by software. The 30 mJ clamp absorbs the inductive energy of disconnected coil halves during microstep transitions, while the SPI-cascadeable interface lets you add more drivers for two-axis or three-axis stepper boards without consuming extra MCU pins.
おすすめ
Indicator Signage and Channel Lighting
Channel-letter signs, wayfinding kiosks, and arcade-button light rings use the STPIC6C595TTR to switch arrays of 12 V or 24 V LED strips at 100 mA per channel while keeping MCU pin count minimal. Because the device is cascadable and serial-controlled, a 3-wire SPI bus from a small MCU can drive 16 channels per chip and dozens of chips per sign, with each channel providing fail-safe current-limit behavior and built-in surge protection that is ideal for field-installed signage.
おすすめ
Optocoupler Input Array Driver
The STPIC6C595TTR is well-suited as a low-side driver that pulls the cathode side of optocoupler LEDs through 100 mA outputs in industrial digital-input modules. Each channel's current-limit prevents LED damage from supply mis-wiring, and the integrated clamp protects against long cable transients on field-wiring without external snubbers, keeping the input-isolation PCB small and inexpensive compared to discrete MOSFET-per-channel designs.
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: STPIC6C595TTR — 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 | STPIC6C595TTR-E | TPIC6C595PWR | TPIC6C595PWG4 |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments |
| Package | 16-pin TSSOP-EP | 16-pin TSSOP-EP - same | 16-pin TSSOP-EP - same | 16-pin TSSOP (no EP) - same footprint outline |
| Output Current (per channel) | 100 mA | 100 mA | 100 mA | 100 mA |
| Output Type | DMOS open-drain | DMOS open-drain | DMOS open-drain | DMOS open-drain |
| Output Clamp Voltage | 33 V | 33 V | 33 V | 33 V |
| Avalanche Energy | 30 mJ | 30 mJ | 30 mJ | 30 mJ |
| Current Limit | 250 mA | 250 mA | 250 mA | 250 mA |
| Operating Temperature Range | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
主な差別化要因
- Integrated 33 V inductive-clamp DMOS output array （vs 74HC595)
- Pin-to-pin TSSOP-16 EP compatibility with TI TPIC6C595 family （vs TPIC6C595PWR)
- TSSOP-16 EP exposed-pad thermal performance （vs TPIC6C595PWG4)
設計ノート
Estimated: at 100 mA per channel across all 8 channels simultaneously, the device dissipates P = 8 x I x RDS(on) x Vsupply_equiv, but for TSSOP-16 EP layout on a 1 oz copper 4-layer board the junction-to-ambient resistance is roughly 45 C/W. For driving all eight channels at the full 100 mA rating in a still-air environment, solder the exposed pad to a copper area of at least 1 square inch and consider using thermal vias to the inner copper layers to keep junction temperature within the 125 C absolute maximum.
Place a 0.1 microfarad ceramic decoupling capacitor directly at the VCC pin (pin 10) and use a low-impedance ground return to pin 5 and the exposed pad. Route the SER IN, SRCLK, RCLK, SRCLR, and OE traces together with the SER OUT output to keep the SPI bus length balanced. For multi-chip cascades, place each device close to its load to minimize the high-current ground-return loop between output DMOS pins and the load's ground reference.
Do not violate the absolute maximum output voltage of 33 V including transients; confirm that relay coil supply voltage stays below this clamp. Do not drive capacitive loads larger than the chip's 250 mA current limit can handle at power-up, otherwise the device enters cyclic current-limit and may overheat. Always use the SRCLR pin to precharge the shift register to all-zeros on power-up before asserting OE, to avoid spurious glitches on the output stages during initialization.
コンプライアンス情報
RoHS and REACH compliant per STMicroelectronics product page and Alldatasheet listing. Standard non-automotive grade; for automotive-qualified applications an AEC-Q100 supplier would be required.
