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Related Links:

Datasheets:
A6273: 8-Bit DMOS Latched Power Driver (PDF)

Selection Guides:
Power Integrated Circuits,

LED Display Drivers,

Relay/Solenoid Drivers

when this product is updated

Press Releases:
DMOS-Based Latched Sink Drivers with Low On Resistance Outputs

A6273
8-Bit DMOS Latched Power Driver

These parts have been phased out of production as of April 28, 2007.

Features

• 50 V Minimum Output Clamp Voltage
• 250 mA Output Current (all outputs simultaneously)
• 1.3 ohms Typical rDS(on)
• Low Power Consumption
• Replacements for TPIC6273N and TPIC6273DW

Description

The A6273KA and A6273KLW combine eight (positive-edge-triggered D-type) data latches and DMOS outputs for systems requiring relatively high load power. Driver applications include relays, solenoids, and other medium-current or high-voltage peripheral power loads. The CMOS inputs and latches allow direct interfacing with microprocessor-based systems. Use with TTL may require appropriate pull-up resistors to ensure an input logic high.

The DMOS output inverts the DATA input. All of the output drivers are disabled (the DMOS sink drivers turned OFF) with the CLEAR input low. The A6273KA/KLW DMOS open-drain outputs are capable of sinking up to 750 mA. Similar devices with reduced rDS(on) will be available as the A6A273.

Functional Block Diagram

Complete Part Numbers

Part Number	Package Type	RoHS Compliant	Part Composition/ RoHS Data	Temperature	Comments	Samples	Distributor Stock
A6273KA	20-pin DIP	No	view data	-40 °C to  125 °C	discontinued	samples not available
A6273KLW	20-lead SOIC	No	view data	-40 °C to  125 °C	discontinued	samples not available
A6273KLWTR	20-lead SOIC	No	view data	-40 °C to  125 °C	discontinued	samples not available

Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.