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SA5775A PDF даташит

Спецификация SA5775A изготовлена ​​​​«Philips» и имеет функцию, называемую «Differential air core meter driver».

Детали детали

Номер произв SA5775A
Описание Differential air core meter driver
Производители Philips
логотип Philips логотип 

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SA5775A Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
SA5775A
Differential air core meter driver
Product specification
Supersedes data of 1997 Feb 24
1999 Sep 20
Philips
Semiconductors









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SA5775A Даташит, Описание, Даташиты
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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SA5775A Даташит, Описание, Даташиты
Philips Semiconductors
Differential air-core meter driver
Product specification
SA5775A
BLOCK DIAGRAM
8
9
10
65
74
3
LOGIC
DAC
MUX
11 12 13 14
Figure 2. Block diagram
SHUT–DOWN
LOGIC
2
3
1
16
15
SL00454
Table 1. SA5775A Pin Descriptions for the N Package (Dual In-Line)
Pin # Name
Function
1. SIN– Negative output connection to the SIN coil of the gauge.
2. SIN+ Positive output connection to the SIN coil of the gauge.
3. AGND Ground for VIGN supply. Pins 3, 13 and 14 connected on the circuit board.
4. VBB Analog supply. Nominally 14.0 V.
5. DATAOUT Serial data output. Output of the internal shift register. When a new data word is shifted in, the old word is shifted out the
DATAOUT pin.
6. DATAIN Serial data input. A new data word is serially shifted into the part on the rising edge of SCLK. The data is shifted in MSB first.
7. VCC 5 V logic supply. The internal latches and registers are set to zero on the rising edge of this signal.
8. OE Output drivers are turned off when this input is low. Current draw is minimized.
9. SCLK Serial clock input. Data is loaded into the part on the rising edge of SCLK.
10. CS Active high chip select input. When CS is high, the part is enabled to receive a new serial input word. The high-to-low tran-
sition of CS loads the new 10-bit word into the DAC registers and updates the output.
11. ST Status output from this IC to indicate that the outputs have been disabled. The outputs may be disabled due to shorted out-
puts, over temperature conditions, power up reset, or output enable control pin .This output is an open drain output .Multiple
status outputs may be wire OR’ed together .This output is low when the outputs are disabled due to a fault condition.
12. nc Not connected
13. DGND Ground for VCC supply. Connect to Pins 3 and 14.
14. AGND Ground for VBB supply. Connect to Pins 3 and 13.
15. COS– Negative output connection to the COS coil of the gauge.
16. COS+ Positive output connection to the COS coil of the gauge.
1999 Sep 20
3










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