8-BIT LATCHED

DMOS POWER DRIVER

The A6B273KA and A6B273KLW combine eight (positive-edge-

triggered D-type) data latches and DMOS outputs for systems requiring

relatively high load power. Driver applications include relays, sole-

noids, 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 A6B273KA/KLW DMOS open-drain outputs

are capable of sinking up to 500 mA. Similar devices with reduced

The A6B273KA is furnished in a 20-pin dual in-line plastic

package. The A6B273KLW is furnished in a 20-lead wide-body,

small-outline plastic package (SOIC) with gull-wing leads for surface-

mount applications. Copper lead frames, reduced supply current

requirements, and low on-state resistance allow both devices to sink

150 mA from all outputs continuously, to ambient temperatures over

85°C.

FEATURES

■

50 V Minimum Output Clamp Voltage

■

150 mA Output Current (all outputs simultaneously)

■

5 Ω Typical

■

Low Power Consumption

■

Replacements for TPIC6B273N and TPIC6B273DW

6B273

Note that the A6B273KA (DIP) and the A6B273KLW

(SOIC) are electrically identical and share a common

terminal number assignment.

1

2

3

8

9

13

14

15

16

17

19

4

5

6

7

12

18

20

IN

GROUND

Dwg. PP-015-2A

10

11

CLEAR

LOGIC

SUPPLY

STROBE

8

ABSOLUTE MAXIMUM RATINGS

Output Drain Current,

Single-Pulse Avalanche Energy,

Input Voltage Range,

Package Power Dissipation,

Operating Temperature Range,

Storage Temperature Range,

* Each output, all outputs on.

† Pulse duration ≤ 100 µs, duty cycle ≤ 2%.

Caution: These CMOS devices have input static

protection (Class 3) but are still susceptible to damage if

exposed to extremely high static electrical charges.

Selection Guide

Part Number Pb-free*

Package

Packing

(°C/W)

A6B273KLW-T

Yes

20-pin SOICW

37 per tube

70

A6B273KLWTR-T

Yes

20-pin SOICW

1000 per reel

70

(°C/W)

17

17

*Pb-based variants are being phased out of the product line. Some variants cited in

this footnote are in production but have been determined to be LAST TIME BUY or

NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently

restricted to existing customer applications. The variants should not be purchased for new

design applications because obsolescence in the near future is probable. Samples are no

longer available. Status change for LAST TIME BUY: October 31, 2006. Deadline for

receipt of LAST TIME BUY orders: April 27, 2007. These variants include: A6B273KLW and

A6B273KLWTR. Status change for NOT FOR NEW DESIGN: May 1, 2006. These variants

include: A6B273KA.