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CS4192XDWF16G

P1-P3P4-P6P7-P8
© Semiconductor Components Industries, LLC, 2005
September, 2005 − Rev. 7
1 Publication Order Number:
CS4192/D
CS4192
Single Air−Core Gauge
Driver
The CS4192 is a monolithic BiCMOS integrated circuit used to
translate a digital 10−bit word from a microprocessor/microcontroller
to complementary DC outputs. The DC outputs drive an air−core
meter commonly used in vehicle instrument panels. The 10 bits of data
are used to linearly control the quadrature coils of the meter directly
with a 0.35° resolution and ±1.2° accuracy over the full 360° range of
the gauge. The interface from the microcontroller is by a Serial
Peripheral Interface (SPI) compatible serial connection using up to a
2.0 MHz shift clock rate.
The digital code, which is directly proportional to the desired gauge
pointer deflection, is shifted into a DAC and multiplexer. These two
blocks provide a tangential conversion function to change the digital
data into the appropriate DC coil voltage for the angle demanded. The
tangential algorithm creates approximately 40% more torque in the
meter movement than does a sin−cos algorithm at 45°, 135°, 225°, and
315° angles. This increased torque reduces the error due to pointer
droop at these critical angles.
Each output buffer is capable of supplying up to 70 mA per coil and
the buffers are controlled by a common OE enable pin. The output
buffers are turned off when OE is brought low, while the logic portion
of the chip remains powered and continues to operate normally. OE
must be high before the falling edge of CS to enable the output buffers.
The status pin (ST) reflects the state of the outputs and is low
whenever the outputs are disabled.
The Serial Gauge Driver is self−protected against fault conditions.
Each driver is protected for 125 mA (typ) overcurrent while a global
thermal protection circuit limits junction temperature to 170°C (typ).
The output drivers are disabled anytime the IC protection circuitry
detects an overcurrent or overtemperature fault. The drivers remain
disabled until a falling edge is presented on CS. If the fault is still
present, the output drivers automatically disable themselves again.
Features
• Serial Input Bus
• 2.0 MHz Operating Frequency
• Tangential Drive Algorithm
• 70 mA Drive Circuits
• 0.5° Accuracy (Typ)
• Power−On−Reset
• Protection Features
♦ Output Short Circuit
♦ Overtemperature
• Internally Fused Leads in SOIC−16 WB Package
• Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details,
please download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING DIAGRAM
SOIC−16 WB
DWF SUFFIX
CASE 751G
16
SCLKOE
1
16
CSV
CC
STSI
GNDGND
GNDGND
SOV
BB
COS−SIN+
COS+SIN−
CS4192 = Specific Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
16
1
CS4192
AWLYYWWG
PIN CONNECTIONS
http://onsemi.com
1
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
ORDERING INFORMATION
CS4192
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2
SIN+
SIN−
COS−
COS+
SI
V
CC
SCLK
CS
SO
ST
OE
V
BB
GND
POR
FAULT
Latch
Serial
to
Parallel
Shift
Register
D0−D6
D7−D9
V
TOP
V
VAR
V
BAT
MUX
Output
Amplifiers
Overcurrent
S
R
POR LOGIC
7 Bit
DAC
ENA
Overtemp
Q
Figure 1. Block Diagram
MAXIMUM RATINGS
Rating Value Unit
Supply Voltage V
BB
V
CC
−1.0 to 16.5
−1.0 to 6.0
V
Digital Inputs −1.0 to 6.0 V
Steady State Output Current ±100 mA
Forced Injection Current (Inputs and Supply) ±10 mA
Operating Junction Temperature, (T
J
) 150 °C
Storage Temperature Range −65 to 150 °C
Lead Temperature Soldering Reflow (SMD styles only) (Note 1) 230 peak °C
ESD Susceptibility (Human Body Model) 2.0 kV
Package Thermal Resistance, SOIC−16 WB
Junction−to−Case, R
q
JC
Junction−to−Ambient, R
q
JA
18
75
°C/W
°C/W
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. 60 seconds max above 183°.
CS4192
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3
ELECTRICAL CHARACTERISTICS (−40°C ≤ T
J
≤ 105°C; 7.5 V ≤ V
BB
≤ 14 V, 4.5 V ≤ V
CC
≤ 5.5 V; unless otherwise specified. Note 2)
Characteristic Test Conditions Min Typ Max Unit
Supply Voltages and Currents
V
BB
Quiescent Current Output disabled (OE = 0 V)
[R
COS
, R
SIN
= R
L(MIN)
] @ 45°
(code = X’080) V
BB
= 14 V
−
−
1.0
−
5.0
175
mA
mA
V
CC
Quiescent Current OE, CS, DI = high, V
BB
= 0 V, SCLK = 2.0 MHz − − 1.15 mA
Digital Inputs and Outputs
Output High Voltage SO, I
OH
= 0.8 mA V
CC
− 0.8 − − V
Output Low Voltage SO, I
OL
= 0.8 mA
ST, I
OL
= 2.5 mA
−
−
−
−
0.4
0.8
V
V
Output Off Leakage ST, V
CC
= 5.0 V − − 25
mA
Input High Voltage CS, SCLK, SI, OE 0.7 × V
CC
− − V
Input Low Voltage CS, SCLK, SI, OE − − 0.3 × V
CC
V
Input High Current CS, SCLK, SI, OE; V
IN
= 0.7 × V
CC
− − 1.0
mA
Input Low Current CS, SCLK, SI, OE; V
IN
= 0.3 × V
CC
− − 1.0
mA
Analog Outputs
Output Function Accuracy − −1.2 ±0.5 +1.2 deg
Output Shutdown Current, Source V
BB
= 14 V 70 125 250 mA
Output Shutdown Current, Sink V
BB
= 14 V 70 125 250 mΑ
Output Shutdown Current, Source V
BB
= 7.5 V 43 125 250 mΑ
Output Shutdown Current, Sink V
BB
= 7.5 V 43 125 250 mΑ
Thermal Shutdown − − 170 − °C
Thermal Shutdown Hysteresis − − 20 − °C
Coil Drive Output Voltage − − 0.748 ×
V
BB
− V
Minimum Load Resistance T
A
= 105°C
T
A
= 25°C
T
A
= −40°C
−
−
−
229
171
150
−
−
−
W
W
W
Shift Clock Frequency − − − 2.0 MHz
SCLK High Time − 175 − − ns
SCLK Low Time − 175 − − ns
SO Rise Time 0.75 V to V
CC
− 1.2 V; C
L
= 90 pF − − 150 ns
SO Fall Time 0.75 V to V
CC
− 1.2 V; C
L
= 90 pF − − 150 ns
SO Delay Time C
L
= 90 pF − − 150 ns
SI Setup Time − 75 − − ns
SI Hold Time − 75 − − ns
CS Setup Time Note 3. 0 − − ns
CS Hold Time − 75 − − ns
2. Designed to meet these characteristics over the stated voltage and temperature ranges, though may not be 100% parametrically tested in
production.
3. OE must be high at falling edge of CS. This condition ensures valid output for any given input.
P1-P3P4-P6P7-P8

CS4192XDWF16G

Mfr. #:
Buy CS4192XDWF16G
Manufacturer:
ON Semiconductor
Description:
IC DRIVER AIR CORE SINGLE 16SOIC
Lifecycle:
New from this manufacturer.
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