TPS4H000-Q1 - 40V 1Ω Quad High-Side Switch | TI Automotive
料号： TPS4H000-Q1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.85 | $1,850.00 |
TPS4H000-Q1 概述
A smart high-side switch is a power management IC that connects a load to a positive supply rail through a MOSFET, providing protection and diagnostic functions. It integrates the power switch, driver, and protection circuitry into a single package, replacing discrete MOSFETs and associated components. In the power distribution hierarchy, it sits between the battery or supply rail and the load, acting as a controlled and protected power distribution element.
Key features include a wide operating voltage range of 3.4V to 40V, making it suitable for 12V automotive and 24V industrial systems. The integrated 1000-mΩ NMOS FETs minimize conduction losses, while the adjustable current limit allows designers to set the threshold for inrush or overload protection. Full diagnostics provide open-load, short-to-ground, and over-temperature detection, enhancing system reliability.
The device uses an internal charge pump to drive the high-side NMOS FETs, eliminating the need for external bootstrap components. The high-accuracy current sense output enables precise load monitoring, which is critical for applications like lighting control and motor management. The TPS4H000-Q1 is qualified to AEC-Q100 for automotive use, ensuring robust performance in harsh environments.
Typical applications include automotive body control modules, lighting systems, resistive and inductive loads, and industrial PLC outputs. Its quad-channel configuration saves board space and simplifies PCB layout, while the adjustable current limit provides flexibility for various load requirements.
When designing with the TPS4H000-Q1, ensure proper thermal management by connecting the exposed pad to a large copper area. The current sense accuracy depends on the external sense resistor, so choose a precision resistor to maintain accuracy. Also, consider the inrush current of capacitive loads and set the current limit accordingly.
直接替换替代料： TPS4H000-Q1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TPS4H000-Q1 （相同外形与封装尺寸） ——差异在于 Diagnostics, Package, Power FET Type, Qualification.
快速对比工具——选择替代料号进行并排对比：
TPS4H000BQPWPRQ1
✅ 直接替换✓ 有现货
$2.15 / 个
查看数据手册 →TPS4H160-Q1
✅ 直接替换📋 参考替代料（不在目录中）
TPS4H140-Q1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
VNQ7004SY
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
BTS7004-1EPA
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS4H000-Q1 最大额定值与电气特性
| Number of Channels | 4 |
| 输出类型 | High-Side |
| 输入电压范围 | 3.4 V to 40 V |
| Output Current per Channel | 750 mA |
| On-State Resistance (RON) | 1000 mΩ |
| Power FET Type | NMOS |
| Current Sense Accuracy | High accuracy (typical ±5%) |
| Adjustable Current Limit | Yes (external resistor) |
| Diagnostics | Open-load, short-to-ground, over-temperature |
| Charge Pump | Internal |
| 工作温度范围 | -40°C to +125°C |
| 封装 | 20-HTSSOP (PowerPAD) |
| 安装类型 | Surface Mount |
| Qualification | AEC-Q100 (automotive) |
| RoHS 状态 | Compliant |
TPS4H000-Q1 引脚配置
| 引脚 1 | IN1 — Input control for channel 1 |
| 引脚 2 | IN2 — Input control for channel 2 |
| 引脚 3 | IN3 — Input control for channel 3 |
| 引脚 4 | IN4 — Input control for channel 4 |
| 引脚 5 | GND — Ground |
| 引脚 6 | ILIM — Current limit adjust |
| 引脚 7 | SNS — Current sense output |
| 引脚 8 | EN — Enable (active high) |
| 引脚 9 | OUT1 — Output for channel 1 |
| 引脚 10 | OUT2 — Output for channel 2 |
| 引脚 11 | OUT3 — Output for channel 3 |
| 引脚 12 | OUT4 — Output for channel 4 |
| 引脚 13 | VBB — Battery supply |
| 引脚 14 | VBB — Battery supply |
| 引脚 15 | VBB — Battery supply |
| 引脚 16 | VBB — Battery supply |
| 引脚 17 | NC — No connect |
| 引脚 18 | NC — No connect |
| 引脚 19 | NC — No connect |
| 引脚 20 | NC — No connect |
典型应用
TPS4H000-Q1 适用于 6 应用s: Automotive Body Control Module, Automotive Lighting Control, Industrial PLC Output Module, Power Distribution in Smart Junction Box, Heated Seat Control, Motor Control for DC Motors.
Automotive Body Control Module
The TPS4H000-Q1 is ideal for automotive body control modules (BCMs) that switch resistive loads like relays, solenoids, and lamps. Its 40V input range handles load dump transients, while the adjustable current limit protects against inrush currents. The quad-channel configuration saves space, and full diagnostics enable fault detection for each load, improving system reliability. With AEC-Q100 qualification, it meets automotive quality standards.
推荐
Automotive Lighting Control
For automotive lighting, the TPS4H000-Q1 drives LED modules and incandescent bulbs with its 750mA per channel. The high-accuracy current sense enables precise monitoring of lamp health, detecting open or shorted bulbs. The adjustable current limit prevents inrush current damage during cold filament startup. Its wide input voltage range accommodates battery voltage variations, and the diagnostics help meet safety requirements.
推荐
Industrial PLC Output Module
In industrial PLCs, the TPS4H000-Q1 provides four protected high-side outputs for driving actuators, valves, and indicators. Its 24V industrial supply compatibility and adjustable current limit make it suitable for various loads. The diagnostics allow the PLC to detect wiring faults, reducing downtime. The compact HTSSOP package fits space-constrained I/O modules, and the wide temperature range ensures reliable operation in factory environments.
推荐
Power Distribution in Smart Junction Box
The TPS4H000-Q1 is used in smart junction boxes to distribute power to multiple loads with protection and diagnostics. Its quad-channel design replaces discrete MOSFETs and fuses, reducing component count. The adjustable current limit allows customization for different load types, and the current sense output enables load monitoring for predictive maintenance. The device's robustness handles automotive transients, making it suitable for central power distribution units.
推荐
Heated Seat Control
For automotive heated seats, the TPS4H000-Q1 switches the heating element with PWM control. Its high-accuracy current sense allows precise temperature regulation by monitoring the heater current. The adjustable current limit protects against short circuits, and the diagnostics detect open heating elements. The 40V rating handles load dump, and the AEC-Q100 qualification ensures reliability in the passenger cabin environment.
推荐
Motor Control for DC Motors
The TPS4H000-Q1 can drive small DC motors in automotive applications like window lifts and mirror adjusters. Its adjustable current limit provides stall protection, and the diagnostics detect open or shorted motor windings. The quad-channel configuration allows controlling multiple motors from one device. The wide input voltage range and robust protection make it suitable for harsh automotive environments.
推荐
推荐产品汇总
工程参考数据： TPS4H000-Q1 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TPS4H000BQPWPRQ1 | TPS4H160-Q1 | TPS4H140-Q1 | VNQ7004SY | BTS7004-1EPA |
|---|---|---|---|---|---|---|
| Package | 20-HTSSOP | 20-HTSSOP | 20-HTSSOP | 20-HTSSOP | 20-HTSSOP | 20-HTSSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics | Infineon |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 1 |
关键差异点
- Adjustable current limit （对比 TPS4H160-Q1)
- Lower on-resistance for higher current （对比 TPS4H000-Q1)
- Quad-channel integration （对比 BTS7004-1EPA)
设计说明
The TPS4H000-Q1's power dissipation is calculated as P = I^2 * RON. At 750mA per channel and 1000 mΩ, each channel dissipates 0.56W. With four channels, total dissipation can reach 2.25W. The HTSSOP package's exposed pad must be soldered to a large copper area to keep junction temperature below 125°C. Use thermal vias to connect to inner layers for better heat spreading.
Place a 100nF ceramic capacitor close to each VBB pin and a 10µF bulk capacitor at the supply input. The current sense pin (SNS) should have a sense resistor connected to ground with Kelvin connections to maintain accuracy. Keep the ILIM resistor close to the pin and avoid long traces to prevent noise coupling.
Do not exceed the absolute maximum input voltage of 40V. When driving inductive loads, ensure a freewheeling diode is placed across the load to clamp voltage spikes. The adjustable current limit must be set above the normal load current but below the maximum rating to avoid nuisance trips. Also, ensure the enable pin is properly pulled up or down to avoid unintended operation.
合规信息
AEC-Q100 qualified per TI product page. RoHS compliant. Halogen-free status not specified in provided data.
