TPIC6B595 Power Logic 8-Bit Shift Register IC DIP-20 — 50V / 150mA, Low-Side, Arduino

TPIC6B595 — Power Logic 8-Bit Shift Register, DIP-20

The TPIC6B595 is a power logic 8-bit serial-in / parallel-out shift register with integrated N-channel DMOS transistor outputs, capable of sinking up to 150mA at 50V per channel. It is the low-side counterpart to the MIC5891 (high-side) — where the MIC5891 sources current to common-cathode loads, the TPIC6B595 sinks current from common-anode loads. With built-in clamp diodes on all outputs and a standard SPI-compatible 3-wire interface, it is the definitive solution for driving common-anode 7-segment LED displays, relay coils (low-side), and other high-current loads directly from a microcontroller.

Key Features

• 8-bit serial-in / parallel-out — SPI-compatible 3-wire interface (SER IN, SRCK, RCK)
• Low-side DMOS outputs — sinks up to 150mA @ 50V per channel
• Built-in clamp diodes on all outputs — inductive load protection
• Logic supply: 4.5–5.5V — 5V logic compatible
• Load supply: up to 50V
• Daisy-chainable — cascade multiple TPIC6B595s for more outputs
• Output Enable (G̅) pin — blanking and PWM brightness control
• DIP-20 package — breadboard and through-hole PCB compatible

Technical Specifications

Output Voltage (max)	50V
Output Current (per channel)	150mA continuous
Logic Supply Voltage	4.5–5.5V
Interface	SPI-compatible (SER IN, SRCK, RCK, G̅)
Output Type	Low-side DMOS (open-drain, active-low sink)
Clamp Diodes	Built-in on all 8 outputs
Package	DIP-20 (through-hole)
Manufacturer	Texas Instruments

TPIC6B595 vs 74HC595 vs MIC5891

• 74HC595: Logic-level outputs only (~35mA) — needs external transistors for power loads
• TPIC6B595 (this): 150mA low-side DMOS — drives common-anode displays and low-side relay coils directly
• MIC5891: 500mA high-side Darlington — drives common-cathode displays and high-side loads

Typical Applications

• Common-anode 7-segment LED display driver (high-voltage, high-current digits)
• Low-side relay coil driver array
• Solenoid valve driver (low-side switching)
• High-power LED matrix driver (common-anode)
• Industrial output expansion for PLCs and embedded controllers
• Stepper motor phase driver

Package Contents

• 1 × TPIC6B595 Power Logic 8-Bit Shift Register (DIP-20, Texas Instruments)

TPIC6B595 Datasheet (Texas Instruments PDF)

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.