TPS4H000AQPWPRQ1 - 40V Quad Smart High-Side Switch | TI
부품 번호: TPS4H000AQPWPRQ1 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.62 | $2.62 |
| 10 | $2.36 | $23.60 |
| 100 | $1.95 | $195.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.15 | $1,150.00 |
TPS4H000AQPWPRQ1 개요
A smart high-side switch is a power distribution switch placed between a supply rail and a load, switching the high side of the load while integrating protection, diagnostics, and current monitoring into a single IC. Within the power management hierarchy, it belongs to the load switch / power distribution switch family, which sits upstream of discrete MOSFET drivers and replaces discrete fuse-plus-relay solutions in modern automotive and industrial systems.
Key features include four independent channels with integrated 1000-mΩ NMOS power FETs, an external adjustable current limit that controls inrush and overload current, high-accuracy current-sense output for intelligent load monitoring, and full diagnostics reporting such as open-load and fault conditions. The device integrates an internal charge pump so the NMOS switches are driven properly from a single supply, eliminating the need for external driver circuitry.
Technically, the TPS4H000-Q1 family is a fully protected quad-channel smart high-side switch. Protection functions combine with per-channel diagnostics to allow the microcontroller to detect fault conditions in real time. The two family versions differ in diagnostic reporting format, allowing designers to select the version matching their ADC or polling architecture. Automotive qualification (Q1) makes the device suitable for harsh 12-V and 24-V vehicle environments.
Typical applications include automotive LED lighting modules, resistive and inductive load drivers such as relays, heaters and solenoids, body control modules, and general 12-V/24-V automotive load management. The quad-channel integration reduces board area versus four discrete single-channel switches.
A key design consideration is power dissipation: at 1000-mΩ per channel on-resistance, conduction losses scale with load current, so thermal design of the exposed power pad on the PCB is important at continuous high currents.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing shown as of 2026-09-03.
드롭인 대체품: TPS4H000AQPWPRQ1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: TPS4H000AQPWPRQ1 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Current Limit, Diagnostics, Protection, Supply Voltage Range.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
TPS4H000BQPWPRQ1
✅ 드롭인✓ 재고 있음
$2.15 / 개
데이터시트 보기 →TPS4H160BQPWPRQ1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TPS4H000AQPWPRQ1 최대 정격 & 전기적 특성
| Product Type | Quad-channel smart high-side switch |
| Number of Channels | 4 |
| Maximum Input Voltage | 40 V |
| On-Resistance (RDS(on)) | 1000 mΩ per channel |
| Adjustable Current Limit | Yes (external, per datasheet) |
| Current-Sense Output | Yes, high-accuracy current sense |
| Diagnostics | Open-load and fault diagnostics (version A reporting) |
| Integrated Charge Pump | Yes |
| Protection | Fully protected (overload, inrush limiting) |
| Automotive Qualification | AEC-Q100 qualified (Q1) |
| 패키지 | 20-HTSSOP (PWP) with power pad |
| 실장 유형 | Surface Mount |
| 출력 구성 | High-side, N-Channel |
| Family Versions | A version (this part) and B version with different diagnostic reporting |
TPS4H000AQPWPRQ1 20-htssop (pwp) with power pad 핀 구성 가이드
TPS4H000AQPWPRQ1(20-htssop (pwp) with power pad 패키지)의 핀 구성입니다. 이 전력 소자는 게이트, 드레인, 소스 단자를 갖추고 있습니다. 비편향 패키지의 경우 정확한 핀 1 방향과 풋프린트 세부 정보는 제조사 데이터시트를 참조하십시오. 일반적인 응용 분야로는 전원 공급 장치 설계, 모터 구동, 부하 스위칭이 있습니다.
다음에 대한 상세 핀아웃 데이터 없음: TPS4H000AQPWPRQ1.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
TPS4H000AQPWPRQ1 적합 용도: 6 애플리케이션s: Automotive LED Lighting Modules, Body Control Module (BCM) Load Drivers, Industrial 24-V PLC I/O Modules, Heaters and Resistive Load Management, Relay and Solenoid Driving, Smart Fuse / eFuse Load Protection.
Automotive LED Lighting Modules
The TPS4H000AQPWPRQ1 fits automotive LED lighting because its 40-V rating survives load-dump transients and its external adjustable current limit suppresses LED turn-on inrush, protecting both the internal 1000-mΩ FETs and the lamp string. The high-accuracy current-sense output lets the body controller verify lamp presence and detect open or shorted LEDs per channel in real time through the A-version diagnostic reporting. In a typical design, each of the four channels drives one LED string or lamp group from a 12-V rail, with the current-limit resistor set above the steady-state lamp current. Unlike a discrete fuse, the device provides retryable, programmable protection without service replacement.
추천
Body Control Module (BCM) Load Drivers
In body control modules, the TPS4H000AQPWPRQ1 drives multiple resistive and inductive loads - relays, small motors, heaters, solenoids - from a single quad-channel IC, cutting board area versus four discrete switches. The 40-V rating covers automotive 12-V transients, while the internal charge pump drives the NMOS channels from one supply. The per-channel current-sense output enables intelligent load management: the microcontroller can detect stuck relays, broken harnesses, or stalled actuators through the diagnostic reporting. Designers should size the current-limit resistor per channel to match each load type, and use the exposed power pad of the HTSSOP-20 package to conduct the I² × 1-Ω conduction losses into the PCB ground plane for thermal margin.
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Industrial 24-V PLC I/O Modules
For industrial programmable logic controller (PLC) output modules, the TPS4H000AQPWPRQ1 provides protected switching of 24-V sensor and actuator loads. Although automotive qualified, its 40-V rating and adjustable current limit map directly to industrial 24-V rails with headroom for surge events. The four independent channels allow one device to serve four PLC output points, and the high-accuracy current-sense output supports diagnostic functions demanded by industrial safety standards, such as short-circuit and open-wire detection. Firmware can poll the A-version diagnostic reporting to log faults per channel. Thermal layout with a solid exposed-pad connection keeps junction temperature in check at continuous multi-channel loads.
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Heaters and Resistive Load Management
Resistive loads such as seat heaters, mirror heaters, and small industrial heating elements benefit from the TPS4H000AQPWPRQ1's combination of switch integration and diagnostics. The adjustable current limit accommodates the cold-resistance inrush characteristic of PTC heating elements at startup, while the current-sense output gives the controller a live measurement of heater current that can be used for closed-loop temperature estimation without an external shunt. Each of the four channels independently monitors its load through the A-version diagnostics, flagging open heaters or wiring faults. Because heater conduction is continuous, thermal design around the 1000-mΩ on-resistance is critical: place generous copper under the HTSSOP-20 power pad and verify junction temperature at maximum duty cycle.
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Relay and Solenoid Driving
Inductive loads such as relays and solenoids impose both inrush and turn-off energy challenges that the TPS4H000AQPWPRQ1 addresses. The external adjustable current limit bounds the magnetizing inrush, and the fully protected channel architecture tolerates the fault conditions inductive loads create. The current-sense output verifies pull-in current, allowing the controller to detect welded or failed relays through the diagnostic reporting. Place each channel close to its relay coil and provide a PCB layout with a low-inductance ground return through the exposed power pad. At 1000 mΩ per channel, verify that holding-current conduction losses do not push the die beyond thermal limits during continuous solenoid operation in high ambient temperatures.
추천
Smart Fuse / eFuse Load Protection
The TPS4H000AQPWPRQ1 serves as an electronic fuse replacing blade fuses in distributed load protection architectures. The external adjustable current limit functions as a programmable fuse threshold, reacting far faster than a melting-wire fuse and eliminating vehicle service after a fault event. The high-accuracy current-sense output streams per-channel load current to the controller, enabling predictive diagnostics such as rising-current wear detection on actuators. Four channels per device reduce the component count of smart junction boxes. Because no cross-brand pin-to-pin equivalents are documented, TI family members (A/B versions) are the substitution path; firmware must match the chosen diagnostic-reporting variant during design-in.
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추천 제품 요약
엔지니어링 참조 데이터: TPS4H000AQPWPRQ1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TPS4H000BQPWPRQ1 | TPS4H160BQPWPRQ1 |
|---|---|---|---|
| Package | HTSSOP-20 (PWP) with power pad | HTSSOP-20 (PWP) - same | HTSSOP-20 (PWP) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Maximum Input Voltage | 40 V | 40 V | 40 V |
| Channels | 4 | 4 | 4 |
| Channel On-Resistance | 1000 mΩ | 1000 mΩ | 160-mΩ class (lower RDS(on)) |
| Diagnostic Reporting Version | A version | B version | B version |
| Automotive Qualification | AEC-Q100 (Q1) | AEC-Q100 (Q1) | AEC-Q100 (Q1) |
| Adjustable Current Limit | Yes (external) | Yes (external) | Yes (external) |
주요 차별점
- Quad-channel integration in one package (vs Single-channel high-side switches)
- A-version diagnostic reporting (vs TPS4H000BQPWPRQ1)
- Adjustable current limit (vs Fixed-limit load switches)
설계 노트
Each channel integrates a 1000-mΩ NMOS FET, so conduction loss per channel is I² × 1 Ω. Estimated: at 0.75 A continuous per channel on all four channels, total dissipation is approximately 2.25 W (4 × 0.75² × 1 Ω). The HTSSOP-20 exposed power pad must be soldered to a substantial ground copper area; verify junction temperature at maximum duty cycle and worst-case ambient using the thermal metrics in the TI datasheet.
Do not mix A-version and B-version diagnostic reporting in one firmware build without verifying the reporting scheme - the TPS4H000-Q1 family ships two versions with different diagnostic formats, and A/B parts are otherwise pin-identical. Confirm the marking before programming fault-handling code, since an A/B mismatch causes incorrect open-load and fault interpretation rather than a hard failure.
Place the current-limit setting resistor close to the device and route the current-sense feedback line away from switching load currents to preserve the high-accuracy current-sense measurement. Provide a low-inductance ground return through the exposed pad, and keep per-channel output traces sized for the set current limit. Add input bulk capacitance at the supply pin to absorb inrush events when multiple channels start simultaneously.
규정 준수 정보
Q1 suffix confirms AEC-Q100 automotive qualification. RoHS/REACH/lead-free status per TI product page was not captured in the retrieved data.
