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BSP171IATMA1-VB Product details
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The BSP171IATMA1-VB is a Single P-MOS optimized for negative voltage power switching scenarios. Its Trench process balances low switching losses with high reliability, and the SOT223 package strikes a good balance between thermal performance and board space. The combination of -60V withstand voltage, -7A current capability, and 55mΩ on-resistance makes it an ideal cost-reducing incremental option for replacing traditional DPAK or SOP-8 packaged devices, especially suitable for high-density, high-volume applications.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT223 | Single-P | -60V | -1.7V | -7A | 65(mΩ) | 55(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT223 | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT223 | Single-P | -60V | -1.7V | -7A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT223 | Single-P | -60V | -1.7V | -7A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT223 | Single-P |
- VDS=-60V: Suitable for 12V/24V/48V systems, providing ample margin for negative voltage spikes, reducing avalanche breakdown risk, ideal for industrial and automotive bus scenarios.
- VGS=±20V: Compatible with a wide range of logic level drives, can directly connect to MCU/PMIC, simplifying gate drive circuit design.
- Vth=-1.7V (Typical): Allows full conduction even under low-voltage drive, suitable for applications with significant battery voltage fluctuations.
- RDS(on)=55mΩ @ VGS=10V; 65mΩ @ VGS=4.5V: Low on-resistance significantly reduces temperature rise at full load, minimizing required heat sink copper area.
- ID=-7A: Ample continuous current margin to meet peak demands of most negative voltage load switches and power path management.
- Package SOT223: Small size, low parasitic parameters, supports high-frequency switching, saves PCB area and assembly cost, compatible with mainstream reflow soldering processes.
- VGS=±20V: Compatible with a wide range of logic level drives, can directly connect to MCU/PMIC, simplifying gate drive circuit design.
- Vth=-1.7V (Typical): Allows full conduction even under low-voltage drive, suitable for applications with significant battery voltage fluctuations.
- RDS(on)=55mΩ @ VGS=10V; 65mΩ @ VGS=4.5V: Low on-resistance significantly reduces temperature rise at full load, minimizing required heat sink copper area.
- ID=-7A: Ample continuous current margin to meet peak demands of most negative voltage load switches and power path management.
- Package SOT223: Small size, low parasitic parameters, supports high-frequency switching, saves PCB area and assembly cost, compatible with mainstream reflow soldering processes.
Domain and module applications：
- High-Side Load Switch: P-MOS architecture simplifies high-side drive, no charge pump needed, suitable for battery reverse polarity protection and power path management.
- Power Management Module: Low on-resistance improves load switching efficiency, SOT223 package suitable for compact DC-DC converters and LDO front-end switches.
- Industrial Control Interface: -60V withstand voltage handles inductive load turn-off spikes, suitable for PLCs, sensor outputs, and relay drive circuits.
- Automotive Auxiliary Power: Wide voltage margin and Trench process reliability adapt to 12V/24V automotive bus, supporting body control modules and on-board chargers.
- Consumer Electronics Protection Circuit: Fast switching ensures quick shutdown during overcurrent/short circuit, low on-resistance reduces self-heating of the protection board, suitable for smart home appliances and power tools.
- LED Lighting Drive: P-MOS high-side constant current control simplifies topology, low conduction voltage drop reduces power consumption, supports multi-channel parallel dimming.
- Battery Management Unit: Negative voltage side disconnection capability meets lithium battery pack protection needs, low Vth facilitates direct drive by low-voltage logic.
**Selection Summary**: The BSP171IATMA1-VB achieves a balance between performance margin, package size, and system cost, making it a cost-effective general-purpose choice for -60V negative voltage switching applications, especially suitable for projects with strict requirements on space, heat dissipation, and high-side drive simplicity.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features
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