BSP772TXUMA1: Technical Specifications and Application Overview
The BSP772TXUMA1 is a sophisticated Smart High-Side Power Switch engineered to deliver robust performance and intelligent control for a wide range of automotive and industrial applications. This device integrates a vertical power MOSFET with a sophisticated CMOS control circuit on a single chip, offering a compact and highly reliable solution for switching resistive or inductive loads.
Technical Specifications
Built on advanced semiconductor technology, the BSP772TXUMA1 is designed to handle significant power levels with high efficiency. Its core electrical characteristics define its capabilities:
Output Configuration: Single-channel high-side switch.
Load Current: Capable of handling a continuous DC current of up to 5.5 A, making it suitable for driving medium-power loads.
Output Voltage: Operates with a supply voltage range from 5.5 V to 40 V, covering standard automotive and industrial power rails, including load-dump conditions.
On-State Resistance (RDS(on)): Features a very low typical RDS(on) of < 30 mΩ. This low resistance is critical for minimizing power dissipation and thermal generation, enhancing overall system efficiency.
Protection Features: The device is equipped with a comprehensive suite of integrated protection functions. These include over-current limitation (ISD), active over-temperature shutdown (TSD), and over-voltage clamp (VDS clamp). A dedicated open-drain error flag (STATUS) pin provides diagnostic feedback to the microcontroller for conditions like overtemperature or open load.
Control Interface: It is controlled via a 3.3 V and 5 V logic-compatible input (IN), allowing for direct interfacing with modern microcontrollers without requiring level shifters.
Package: Housed in a PG-TDSO-14-13 (SuperSO8) package, which offers an excellent power-to-size ratio and good thermal performance for its footprint.
Application Overview
The integration of control, power, and protection makes the BSP772TXUMA1 an ideal choice for a multitude of applications where reliability and diagnostics are paramount.
Automotive Systems: It is extensively used in body control modules (BCMs) and power distribution units to drive loads such as LED lighting (exterior and interior), solenoids, valves, and DC motors for window lifters, sunroofs, or seat adjusters. Its ability to withstand harsh automotive electrical environments is a key advantage.
Industrial Automation: In control panels and programmable logic controllers (PLCs), this switch can reliably control actuators, small relays, solenoids, and indicators. The diagnostic feedback is crucial for predictive maintenance and system status monitoring.
Consumer Appliances: Suitable for driving motors and heaters in advanced home appliances that require safe and controlled power switching.
The device's intelligent features, such as the current limitation, protect the switch itself and the connected load from damage during fault conditions, thereby increasing the overall system's robustness and longevity.
A highly integrated and protected smart power switch, the BSP772TXUMA1 stands out for its low RDS(on), wide operating voltage, and comprehensive diagnostic capabilities, making it a superior choice for demanding automotive and industrial switching applications.
Keywords: Smart High-Side Switch, Over-Current Protection, Low RDS(on), Automotive Grade, Diagnostic Feedback
