CS4122_05 Datasheet, PDF (3/9 Pages) ON Semiconductor – Triple Air−Core Gauge Driver with Serial Input Bus

CS4122
ELECTRICAL CHARACTERISTICS (−40°C ≤ T_A ≤ 105°C, 7.5 V ≤ V_BB ≤ 14 V, 4.5 V ≤ V_CC ≤ 5.5 V; unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
Supply Voltages and Currents
Analog Supply Current
V_BB = 14 V, no coil loads,
−
R_COS, R_SIN = 150 W
Major @ 45° (code = 080₁₆),
−
Both Minors @ 0° (codes = 00₁₆)
Major @ 0° (code = 000₁₆),
−
Both Minors @ 56° (codes = 80₁₆)
Logic Supply Current
V_CC = 5.5 V
SCLK = 2.0 MHz
−
SCLK = 0 MHz, V_BB = 0 V
−
Protection and Power−on Reset
5.20
25
mA
310
340
mA
81
100
mA
1.0
2.0
mA
0.9
1.5
mA
Thermal Shutdown
Drive Outputs Off
−
160
−
°C
Power−on Reset
V_CC Rising
V_CC Falling
Digital Inputs and Outputs
−
−
4.5
V
2.5
−
−
V
Output High Voltage
Output Low Voltage
FAULT Leakage Current
Input High Voltage
Input Low Voltage
Input High Current
Input Low Current
SCLK Frequency
SO = I_OUT(HIGH) = 0.8 mA
SO = I_OUT(LOW) = 1.5 mA
FAULT, I_OUT(LOW) = 2.8 mA
V_FAULT = 5.0 V
CS, SCLK, SI
CS, SCLK, SI
CS, SCLK, SI, V_IN = 0.7 × V_CC
CS, SCLK, SI, V_IN = 0.3 × V_CC
−
V_CC − 0.8
−
−
−
−
−
−
V
0.4
V
0.8
V
−
−
25
mA
0.7 × V_CC
−
−
V
−
−
0.3 × V_CC
V
−
−
1.0
mA
−
−
1.0
mA
−
−
2.0
MHz
SCLK High Time
−
175
−
−
ns
SCLK Low Time
−
175
−
−
ns
SO Rise Time
SO Fall Time
SO Delay Time
SI Setup Time
0.75 V to V_CC − 1.2 V; C_L = 90 pF
−
V_CC − 1.2 V to 0.75 V; C_L = 90 pF
−
C_L = 90 pF
−
−
75
−
100
ns
−
100
ns
−
150
ns
−
−
ns
SI Hold Time
−
75
−
−
ns
CS Setup Time
−
0
−
−
ns
CS Hold Time
−
75
−
−
ns
Analog Outputs
Output Function Accuracy
Major Accuracy
Minor Accuracy
−
−
±0.75
°
−
−
±1.00
°
Output Shutdown Current,
Source and Sink
V_BB = Max
V_BB = Min
Major Coil Drive Output
−
Voltage
70
−
−
mA
43
−
−
mA
−
0.748 × V_BB
−
V
Minor Coil Drive Output
−
Voltage
−
0.744 × V_BB
−
V
V_BB/2
Minimum Load Resistance
I_DR(VBB/2) = ±50 mA
T_A = 105°C
T_A = 25°C
T_A = −40°C
(0.5 × V_BB) − 0.1
−
(0.5 × V_BB) + 0.1
V
229
−
171
−
150
−
−
W
−
W
−
W
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