Differential air core meter driver
INTEGRATED CIRCUITS
SA5775A Differential air core meter driver
Product specification Supersedes data of 1997 Feb 24 199...
Description
INTEGRATED CIRCUITS
SA5775A Differential air core meter driver
Product specification Supersedes data of 1997 Feb 24 1999 Sep 20
Philips Semiconductors
Philips Semiconductors
Product specification
Differential air-core meter driver
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.
PIN CONFIGURATION
N Package
SINSIN+ AGND VIGN 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 COS+ COSAGND DGND nc ST CS SCLK
FEATURES
DATAOUT DATAIN VCC OE
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
D Package
SIN- 1 SIN+ 2 NC 3 NC 4 NC 5 AGND 6 VIGN DATAOUT DATAIN 7 8 9 28 27 26 25 24 23 22 21 20 19 18 17 16 15 COS+ COSNC NC NC AGND NC NC DGND ST NC NC CS SCLK
Instrumentation utilizing air-co...
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