A6B595KA-T

Overview

The A6B595KA-T is a power driver IC combining an 8-bit CMOS shift register, data latches, and DMOS outputs. It features serial data input rates exceeding 5 MHz and supports cascade connections via a serial-data output. The device sinks up to 500 mA with a minimum output clamp voltage of 50 V. It operates within a supply voltage range of 4.5V to 5.5V and maintains a typical on-state resistance of 5 Ω. The component is housed in a 20-pin dual in-line plastic package (DIP) and functions as a latch driver for medium-current peripheral loads.

Feature Summary

• Integrates an 8-bit CMOS shift register with accompanying data latches and control circuitry for direct microprocessor interfacing.
• Features DMOS open-drain power driver outputs capable of sinking significant current with low on-state resistance.
• Includes a CMOS serial-data output pin to enable cascade connections for expanding drive line capacity.
• Outputs are disabled by a high logic level on the OUTPUT ENABLE input, providing controlled shutdown capability.

Applications

• Relay driving circuits
• Solenoid control systems
• Medium-current peripheral power load management
• High-voltage peripheral switching applications

Procurement Notes

Verify the specific suffix 'T' against official Allegro MicroSystems documentation to confirm tape-and-reel packaging status, as standard listings often denote the DIP variant without reel specifications. Ensure the part number matches the exact 20-pin DIP configuration required for your PCB layout. Cross-reference the datasheet revision to confirm compatibility with your system's voltage levels and interface requirements before finalizing procurement.

Selection Notes

Select this component when a combined shift register and power driver solution is needed for serially controlled loads. It serves as a direct replacement for the TPIC6B595N in existing designs requiring 150 mA continuous sink current per output. Consider the 50 V clamp voltage and 5 Ω on-resistance for thermal management. Verify that the 4.5V to 5.5V supply range aligns with your system's logic levels and that the 20-pin DIP package fits your assembly constraints.

Part Context

The A6B595KA belongs to the 6B595 family of latch drivers from Allegro MicroSystems. It integrates digital control logic with analog power stages to simplify interface design for microprocessors. The device replaces older discrete solutions or competing latch drivers like the TPIC6B595 series. Its architecture allows for efficient control of multiple high-side or low-side loads through a simple serial interface, reducing pin count and board space compared to parallel driver alternatives.

Replacement Considerations

The A6595KA and A6595KLW are available as similar devices with reduced on-state resistance. For legacy replacements, the TPIC6B595N is explicitly cited as a comparable device in official documentation. Verify pinout compatibility and electrical characteristics when substituting these parts.