STP08DP05B1

Overview

The STP08DP05B1 is a low-voltage, monolithic 8-bit constant current LED sink driver designed for LED panel displays. It integrates an 8-bit serial-in, parallel-out shift register and an 8-bit D-type storage register. The output stage provides eight regulated current sources capable of delivering 5 mA to 100 mA per channel. Key specifications include a supply voltage range of 3 V to 3.6 V, a maximum operating temperature of +125 °C, and a high clock frequency of 30 MHz. The device supports open and short circuit error detection on outputs without increasing pin count.

Feature Summary

• Integrated open and short circuit error detection on all output channels
• Adjustable constant current output ranging from 5 mA to 100 mA via external resistor
• High-speed serial data transmission with 30 MHz clock frequency
• Enhanced thermal dissipation capability through exposed pad package design

Applications

• LED panel displays
• Low-voltage microcontroller interfacing
• High-volume data transmission systems

Procurement Notes

Verify the specific suffix 'B1' against official STMicroelectronics documentation to confirm exact ordering details, as standard datasheets may list the base part number STP08DP05. Ensure compatibility with 3.3 V logic levels and confirm the TSSOP-16 package variant matches the required PCB footprint and thermal management needs for the target application.

Selection Notes

Select this component when designing LED display systems requiring integrated fault detection capabilities. It is suitable for applications needing adjustable brightness control and high-speed data updates. The device is appropriate for environments requiring operation up to +125 °C and interfaces directly with 3.3 V microcontrollers without additional level shifting.

Part Context

The STP08DP05 series belongs to STMicroelectronics' family of low-voltage power shift registers. These devices are backward compatible with older STP8C/L596 models in functionality and footprint but extend features by adding diagnostic capabilities. The series is optimized for driving LEDs in panel displays where reliability and heat dissipation are critical.

FAQ

How is the output current adjusted?

The output current is adjusted using an external resistor connected to the device.

What error conditions can be detected?

The device detects short to GND, short to VO, and open line conditions on the output lines.