A6B595 Просмотр технического описания (PDF) - Allegro MicroSystems

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A6B595

8-Bit Serial-Input DMOS Power Driver

Allegro MicroSystems 

A6B595

8-Bit Serial-Input DMOS Power Driver

Features and Benefits

▪ 50 V minimum output clamp voltage

▪ 150 mA output current (all outputs simultaneously)

▪ 5  typical rDS(on)

▪ Low power consumption

▪ Replacement for TPIC6B595N and TPIC6B595DW

Packages:

18-pin DIP

(A package)

Not to scale

20-pin SOICW

(LW package)

Description

The A6B595 combines an 8-bit CMOS shift register and

accompanying data latches, control circuitry, and DMOS

power driver outputs. Power driver applications include

relays, solenoids, and other medium-current or high-voltage

peripheral power loads.

The serial-data input, CMOS shift register and latches allow

direct interfacing with microprocessor-based systems. Serial-

data input rates are over 5 MHz. Use with TTL may require

appropriate pull-up resistors to ensure an input logic high.

A CMOS serial-data output enables cascade connections in

applications requiring additional drive lines. Similar devices

with reduced rDS(on) are available as the A6595.

The A6B595 DMOS open-drain outputs are capable of sinking

up to 500 mA. All of the output drivers are disabled (the DMOS

sink drivers turned off) by the OUTPUT ENABLE input high.

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.

TheA6B595 is furnished in a 20-pin dual in-line plastic package

and a 20-pin wide-body, small-outline plastic package (SOICW)

with gull-wing leads. The Pb (lead) free versions (suffix -T)

have 100% matte tin leadframe plating.

Functional Block Diagram

26185.122G

Grounds (terminals 10, 11, and 19) must be connected together externally.

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