TPIC6B595

POWER LOGIC 8-BIT SHIFT REGISTER

SLIS032 – JULY 1995

1

POST OFFICE BOX 655303

150-mA Continuous Current

description

The TPIC6B595 is a monolithic, high-voltage,

medium-current

power

8-bit

shift

register

designed for use in systems that require relatively

high load power. The device contains a built-in

voltage clamp on the outputs for inductive

transient protection. Power driver applications

include relays, solenoids, and other medium-

current or high-voltage loads.

This device contains an 8-bit serial-in, parallel-out

shift register that feeds an 8-bit D-type storage

register. Data transfers through both the shift and

storage registers on the rising edge of the

shift-register clock (SRCK) and the register clock

(RCK),

respectively.

The

storage

register

transfers data to the output buffer when shift-

register clear (SRCLR) is high. When SRCLR is

low, the input shift register is cleared. When output

enable (G) is held high, all data in the output

buffers is held low and all drain outputs are off.

When G is held low, data from the storage register

is transparent to the output buffers. When data in

the output buffers is low, the DMOS-transistor

outputs are off. When data is high, the DMOS-

transistor outputs have sink-current capability.

The serial output (SER OUT) allows for cascading

of the data from the shift register to additional

devices.

Outputs are low-side, open-drain DMOS transistors with output ratings of 50 V and 150-mA continuous sink-

as the junction temperature increases for additional device protection.

The TPIC6B595 is characterized for operation over the operating case temperature range of – 40

°C to 125°C.

Copyright

© 1995, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

NC

SER IN

DRAIN0

DRAIN1

DRAIN2

DRAIN3

SRCLR

G

GND

NC

GND

SER OUT

DRAIN7

DRAIN6

DRAIN5

DRAIN4

SRCK

RCK

GND

DW OR N PACKAGE

(TOP VIEW)

2

SRG8

† This symbol is in accordance with ANSI/IEEE Std 91-1984

and IEC Publication 617-12.

9

12

8

13

3

EN3

C2

R

C1

1D

G

RCK

SRCLR

SRCK

SER IN

4

6

5

14

7

16

15

18

17

DRAIN0

DRAIN1

DRAIN2

DRAIN3

DRAIN4

DRAIN5

DRAIN6

DRAIN7

SER OUT

2

NC – No internal connection