TPS4H000BQPWPRQ1 - 40V 4-Ch Smart High-Side Switch | TI
MPN: TPS4H000BQPWPRQ1 ✓ Hoạt độngTPS4H000BQPWPRQ1 Tóm tắt
A smart high-side switch is a power distribution switch, part of the load driver and power-management IC hierarchy, that sits between a supply rail and a load, switching the high side of the load while integrating protection and telemetry. Unlike a discrete MOSFET plus driver solution, a smart high-side switch integrates the power FET, gate drive, charge pump, current-sense amplifier, and protection circuits in a single surface-mount device, reducing BOM count and board area.
Key differentiating features of the TPS4H000-Q1 family include the external adjustable current limit, which improves system reliability by limiting inrush or overload current; high-accuracy current-sense output for intelligent load control and predictive maintenance; open-load, short-circuit, and thermal fault diagnostics; and a wide 3.4-V to 40-V supply range that tolerates automotive load-dump transients on 12-V rails.
Architecturally, each of the four channels uses an integrated NMOS power transistor switched by an internal charge pump, so no external FET drive components are required. The four channels can be controlled independently through IN1-IN4 inputs, with SEL and CS pins providing multiplexed diagnostic and current-sense readout to a microcontroller ADC. The B-grade variant offers the family's specified current-limit characteristics in the automotive temperature range.
Typical applications include automotive body-control modules driving relays, lamps, and LED loads; 12-V and 24-V industrial PLC digital output modules; and heating elements or solenoid loads in modules where per-channel fault reporting is mandatory. The 40-V rating covers jump-start and load-dump conditions.
Design consideration: because each channel has 1000 mOhm on-resistance, conduction losses are P = I^2 x R; keep per-channel continuous current near the 750-mA rating to limit junction temperature rise, and use the exposed pad soldered to a copper pour for heat spreading.
This page synthesizes distributor pricing context, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho TPS4H000BQPWPRQ1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TPS4H000BQPWPRQ1 (cùng hình factor và footprint) — khác nhau ở Package, Diagnostics, Number of Channels, Product Type, Adjustable Current Limit.
TPS4H000AQPWPRQ1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TPS4H160BQPWPRQ1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
TPS4H160AQPWPRQ1
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →TPS4H000BQPWPRQ1 Tỷ lệ tối đa & tính chất điện
| Product Type | Quad-channel smart high-side switch |
| Number of Channels | 4 |
| Supply Voltage Range | 3.4 V to 40 V |
| On-Resistance (per channel) | 1000 mOhm (typical) |
| Rated Output Current (per channel) | 750 mA |
| Giới hạn dòng điện | External, adjustable |
| Current Sense | High-accuracy, multiplexed via CS pin |
| Diagnostics | Open-load, short-circuit, thermal, full fault reporting |
| Control Inputs | IN1, IN2, IN3, IN4, SEL |
| Qualification | AEC-Q100 qualified (automotive) |
| Hộp | 20-pin HTSSOP (PWP) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Power FET Type | Integrated NMOS with internal charge pump |
| Target Rails | 12-V and 24-V automotive/industrial |
| Protection | Overload, thermal shutdown, output clamp |
| Trạng thái RoHS | Compliant |
Hướng dẫn cấu hình chân TPS4H000BQPWPRQ1 20-pin htssop (pwp) with exposed pad
Cấu hình chân cho TPS4H000BQPWPRQ1 (20-pin htssop (pwp) with exposed pad gói). Động cơ điện này có chân cổng, nguồn và đầu ra. Đối với các gói không phân極, tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết hướng dẫn chính xác của chân 1 và chi tiết về vân footprint. Các ứng dụng phổ biến bao gồm thiết kế nguồn cung cấp điện, điều khiển động cơ và chuyển đổi tải.
Không có dữ liệu chân cụ thể sẵn có cho TPS4H000BQPWPRQ1.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TPS4H000BQPWPRQ1 phù hợp cho 6 Áp dụngs: Automotive Body Control Module Load Drivers, Automotive LED Lighting and Lamp Drivers, Industrial PLC Digital Output Modules, Heating Elements and Solenoid Control, Relay and Contact Coil Driving, Battery-Management and Distribution Rails.
Automotive Body Control Module Load Drivers
In body-control modules (BCM), the TPS4H000BQPWPRQ1 drives relays, lamps, motors, and solenoid loads on the 12-V rail. The 3.4-V to 40-V supply range absorbs jump-start and load-dump transients without external clamping in most architectures, while AEC-Q100 qualification meets automotive reliability requirements. Its four independent IN inputs let one device switch four separate actuators, reducing board area versus four discrete FET solutions. The external adjustable current limit is set to tolerate actuator inrush while still tripping on genuine short circuits, and the multiplexed CS output gives the module microcontroller per-channel current telemetry for load fault diagnosis, satisfying diagnostic requirements for in-vehicle load management.
Được đề xuất
Automotive LED Lighting and Lamp Drivers
For exterior and interior automotive lighting, the TPS4H000BQPWPRQ1 switches LED strings and incandescent lamps with full fault reporting. The high-accuracy current-sense feature detects open or partially shorted LED strings by monitoring channel current via the CS pin, enabling lamp-failure indications required by vehicle regulations. The adjustable current limit manages the high initial inrush of cold filaments or bulk capacitance across LED drivers, avoiding nuisance shutdown. The 1000-mOhm per-channel on-resistance suits typical per-string currents up to about 750 mA, keeping conduction losses near 0.56 W per channel, manageable with the HTSSOP exposed pad soldered to a ground pour for thermal dissipation within the module.
Được đề xuất
Industrial PLC Digital Output Modules
In 24-V industrial PLC digital output modules, the TPS4H000BQPWPRQ1 provides protected, diagnostics-rich switching of field loads such as solenoids, contactors, and indicator banks. The 40-V rating covers the 24-V rail with headroom for transients, and the adjustable current limit protects wiring harnesses against field short circuits - a common failure mode in industrial cabinets. The open-load diagnostic detects disconnected field wiring, enabling predictive maintenance alerts to the PLC backplane. The multiplexed CS/SEL interface conserves ADC channels on the module controller, since one current-sense input serves all four output channels, reducing cost in high-channel-count I/O cards while retaining per-channel fault attribution.
Được đề xuất
Heating Elements and Solenoid Control
Resistive heating elements (mirror heaters, seat heaters, sensor heaters) and solenoid actuators benefit from the TPS4H000BQPWPRQ1's combination of adjustable current limit and accurate current telemetry. Heating loads draw steady current, so the current-sense output provides a direct proxy for delivered power, allowing the microcontroller to regulate heater power by PWM on the IN pin while monitoring actual current via CS. The 40-V supply rating and AEC-Q100 qualification make it suitable for under-hood and body-zone heating loads on 12-V systems. Thermal design should account for I^2 x R conduction losses in the 1000-mOhm FET, using the exposed thermal pad with a minimum 1-square-inch copper pour for continuous-duty heater channels.
Được đề xuất
Relay and Contact Coil Driving
Relay and contactor coils are classic high-side switch loads, and the TPS4H000BQPWPRQ1 integrates the protection features these inductive loads demand. The adjustable current limit covers coil pull-in inrush; internal clamping handles inductive turn-off energy; and short-circuit protection responds to jammed or shorted coils. Open-load diagnostics flag missing coils or broken field wiring before system commissioning failures occur. Because one 20-pin device replaces four discrete NMOS-plus-protection channels, cabinet and PCB density improves significantly in modules switching multiple relays. Verify that the clamp energy rating in the datasheet covers the worst-case coil energy at the module's maximum supply and coil current.
Được đề xuất
Battery-Management and Distribution Rails
In low-voltage battery distribution architectures (12-V and 24-V storage systems, e-mobility auxiliaries), the TPS4H000BQPWPRQ1 serves as a smart distribution switch for individual loads or sub-rails. The wide 3.4-V to 40-V input tolerates charging transients and deep-discharge conditions, while current sensing per channel enables coulomb-level load profiling and abnormal-load detection for battery protection algorithms. The AEC-Q100 qualification extends its use into traction-adjacent and auxiliary battery modules. Designers should set the external current limit above each sub-rail's steady-state load but below the harness or connector rating, using the CS feedback to trigger load shedding when faults are detected by the system controller.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TPS4H000BQPWPRQ1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TPS4H000AQPWPRQ1 | TPS4H160BQPWPRQ1 | TPS4H160AQPWPRQ1 |
|---|---|---|---|---|
| Package | 20-HTSSOP (PWP) | 20-HTSSOP (PWP) - same | 20-HTSSOP (PWP) - same family | 20-HTSSOP (PWP) - same family |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Channels | 4 | 4 | 4 | 4 |
| On-Resistance | 1000 mOhm | 1000 mOhm | approx. 160 mOhm (verify) | approx. 160 mOhm (verify) |
| Adjustable Current Limit | Yes (external) | Yes (external) | Yes (external) | Yes (external) |
| Current-Sense Diagnostics | Yes, multiplexed CS/SEL | Yes, multiplexed CS/SEL | Yes (per family) | Yes (per family) |
| AEC-Q100 | Qualified (-Q1) | Qualified (-Q1) | Qualified (-Q1) | Qualified (-Q1) |
Bảo phân biệt quan trọng
- High-accuracy multiplexed current sense with four independent channels (vsTPS4H160BQPWPRQ1)
- Grade-variant drop-in flexibility within the same footprint (vsTPS4H000AQPWPRQ1)
- External adjustable current limit shared logic with full fault reporting (vsTPS4H000AQPWPRQ1)
Ghi chú thiết kế
Estimated: each channel's conduction loss is I^2 x R. At the 750-mA per-channel rating with 1000-mOhm on-resistance, dissipation is about 0.56 W per channel; four fully loaded channels produce roughly 2.25 W in the 20-pin HTSSOP package. Solder the exposed thermal pad to at least 1 square inch of copper pour on the PCB, and verify junction temperature stays within the datasheet limit at the module's maximum ambient temperature before releasing the layout.
Set the external current-limit resistor above the load's worst-case steady-state plus inrush current, but below the wiring harness and connector rating. Setting it too high defeats short-circuit protection; too low causes nuisance tripping on lamp filament inrush or capacitive loads. Also confirm clamp energy capability when driving relay or solenoid coils - inductive turn-off energy must remain within the datasheet limit at maximum supply voltage.
Place the current-limit setting resistor close to its dedicated pin with a solid ground return, since the limit threshold depends on resistor accuracy. Route the CS output to the MCU ADC with a short, guarded trace and a small local filter capacitor (1-10 nF typical) to reject PWM switching noise while preserving diagnostic bandwidth. Keep the SEL switching lines away from high-current load paths to avoid injecting transients into the multiplexed telemetry.
Thông tin tuân thủ
AEC-Q100 qualified per the -Q1 suffix and TI product page. RoHS and lead-free status per standard TI automotive-grade offering; REACH and halogen-free status should be confirmed on the TI quality portal.
