TPIC6B595DW Power Logic 8-Bit Shift Register

The TPIC6B595DW from Texas Instruments is a high-performance, monolithic, serial input/output latched driver designed for use in systems that require relatively high load power, such as LED displays, industrial controls, and relay drivers. This integrated circuit combines the functionality of an 8-bit shift register and output latches with eight low-side, DMOS transistor outputs.

With a 5-Volt VCC operation, the TPIC6B595DW is capable of sinking a robust 150 mA of continuous current per channel, and up to a total of 500 mA per package. This makes it an ideal choice for driving a wide range of outputs, including incandescent lamps and other high-current loads. Additionally, the device features a 33 MHz clock frequency, which allows for high-speed data shifting and throughput.

The TPIC6B595DW is housed in a 20-pin SOIC package, which is well-suited for space-constrained applications. Its built-in output clamp diodes provide indispensable protection against inductive transient, safeguarding the device during operation with inductive loads. The shift register has a direct clear function, which enables the user to reset the entire register to a low state, thereby ensuring a predictable start-up condition.

Interfacing with microcontrollers or other logic controllers is straightforward with the TPIC6B595DW, thanks to its serial data input (SER IN), clock (SRCK), and latch enable (RCK) pins. After data is shifted into the register, it can be latched into the storage register on a rising edge of the RCK pin, thus updating the output accordingly.

Key features of the TPIC6B595DW include:

• 8-bit serial-in, parallel-out shift
• Low rDS(on) outputs
• Output rating of 50 V and 150 mA per channel
• Shift register speed of 33 MHz
• Direct clear input
• Enhanced system performance with Texas Instruments quality and reliability

This powerful shift register is a reliable and efficient solution for a variety of applications that require high-voltage and high-current drive capabilities, providing both the performance and the durability expected from a leading semiconductor manufacturer like Texas Instruments.