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componentes Descripción

Fabricante

SA5775

Differential air core meter driver

Philips Electronics 

Philips Semiconductors

Differential air-core meter driver

Product specification

SA5775A

DESCRIPTION

The SA5775A is a monolithic driver for controlling air-core (or

differential) meters typically used in automotive instrument cluster

applications. The circuit interfaces with a microprocessor through a

serial bus and directly drives the air-core meter. The SA5775A has

10-bit resolution (0.35 degree) and is guaranteed to be monotonic.

Data can be shifted through the part, allowing several SA5775As to

be cascaded with only one chip-select line. On-chip current shut

down logic protects the circuit from external faults.

FEATURES

• 10-Bit resolution (0.35 degrees)

• Exceptional accuracy (0.25 degrees, typical)

• High-torque capability

• Active differential drivers eliminate back-EMF issues

• No RFI/EMI generation issues

• Simple serial interface

• Simple cascading capability for multiple meters

• Internal fault protection

• Only one external component required (bypass capacitor)

APPLICATION

• Instrumentation utilizing air-core meters

ORDERING INFORMATION

DESCRIPTION

16-Pin Plastic Dual In-Line Package (DIP)

28-Pin Small Outline Package (SO)

PIN CONFIGURATION

N Package

SIN- 1

SIN+ 2

AGND 3

VIGN 4

DATAOUT 5

DATAIN 6

VCC 7

OE 8

16 COS+

15 COS-

14 AGND

13 DGND

12 nc

11 ST

10 CS

9 SCLK

SIN- 1

SIN+ 2

NC 3

NC 4

NC 5

AGND 6

VIGN 7

DATAOUT 8

DATAIN 9

NC 10

NC 11

NC 12

VCC 13

OE 14

D Package

28 COS+

27 COS-

26 NC

25 NC

24 NC

23 AGND

22 NC

21 NC

20 DGND

19 ST

18 NC

17 NC

16 CS

15 SCLK

Figure 1. Pin configuration

SL00453

TEMPERATURE RANGE

-40 to +85°C

-40 to +85°C

ORDER CODE

SA5775AN

SA5775AD

DWG #

SOT38-4

SOT136-1

1999 Sep 20

2

853-1929 022369

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