SA5778D,518 NXP Semiconductors, SA5778D,518 Datasheet - Page 2

• Manufacturer Part Number: SA5778D,518
• Description: IC SERIAL TRPL GAUGE DRVR 28SOIC
• Manufacturer: NXP Semiconductors

Specifications of SA5778D,518

• Applications: Automotive
• Current - Supply: 500µA
• Voltage - Supply: 8 V ~ 16 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935260762518; SA5778D-T; SA5778D-T

Philips Semiconductors
DESCRIPTION
The Serial Triple Gauge Driver (STGD), is a single chip air core
driver providing drive to one major gauge, and two minor gauges, for
automotive applications such as Speedometer, Fuel, Temperature,
Tachometer, Volts, and Oil pressure information display. The STGD
operates in conjunction with a microcontroller receiving serial data
inputs, and can provide status back to the microcontroller either
serially or via a status line. The protocol is compatible with the
Philips Single Gauge Driver (SGD) and Dual Gauge Driver (DGD).
The STGD also includes a protected battery supply for external
single Serial Gauge Drivers or Dual Gauge Drivers.
PIN CONFIGURATION
BLOCK DIAGRAM
1998 Apr 03
Serial triple gauge driver (STGD)
SwCONTROL
DATA
SwBATT1
SwBATT2
V
DATA
S
BATT
GOE
RUN
CLK
V
CS
GND
IN
COM
SIN+
RUN
GOE
GND
GND
GND
BATT
C2–
OUT
Figure 1. Pin Configuration
10
11
12
13
14
1
2
3
4
5
6
7
8
9
REFERENCE
BIAS, TSD
COMMON
SwBATT,
MINOR GAUGE 2
ENABLE
28
27
26
25
24
23
22
21
20
19
18
17
16
15
SR01116
SIN–
COS+
COS–
ST
S
GND
GND
GND
GND
CS
DATA
C1–
C1+
C2+
CLK
9-BIT DATA
10-BIT SR
Figure 2. STGD Internal Block Diagram
LATCH
IN
MUX
7-BIT
DAC
Tan
MINOR GAUGE 1
9-BIT DATA
10-BIT SR
2
LATCH
MUX
7-BIT
DAC
FEATURES
Tan
Major Gauge 10-bit resolution Drive provides 0.35 resolution
– Sine/Cosine outputs for 360 operation
– 0.2 accuracy typical throughout entire range
Minor gauge drivers provide 0.35 resolution
– 112 operation
– 0.5 accuracy typical throughout entire range
Serial Data Input
– Supports interface from microcontrollers
– Compatible with Philips SGD SA5775A and DGD SA5777A
Serial Data Output
– Permits the STGD to be wired in series using a common chip
– Permits fault status information to be returned to the
Over Voltage Protection, Over Temperature Protection and Low
Standby Current Operation
– Gauge drivers disabled when supply voltage exceeds specified
– Gauge drivers disabled when die temperature exceeds
– External switch may supply overvoltage protected battery
Thermally Enhanced SO-28 surface mount package
select to additional STGDs, SGDs, and DGDs
microcontroller
operating voltage, protection to 40V.
operating range
supply to other devices operating off battery
10-BIT DATA
MAJOR GAUGE
LATCH
7–BIT, SINE
/COSINE
MUX
DAC
10-BIT SR
4-BIT STATUS
LATCH
Product specification
DATA
ST
853–2055 19199
SA5778
SR01117
OUT