CS4122 Datasheet, PDF (3/10 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
Power−on Reset
Digital Inputs and Outputs
Drive Outputs Off
V_CC Rising
V_CC Falling
−
160
−
°C
−
−
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
SCLK High Time
SCLK Low Time
SO Rise Time
SO Fall Time
SO Delay Time
SI Setup Time
SI Hold Time
CS Setup Time
CS Hold Time
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
−
−
−
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
−
−
−
−
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
175
−
−
ns
175
−
−
ns
−
−
100
ns
−
−
100
ns
−
−
150
ns
75
−
−
ns
75
−
−
ns
0
−
−
ns
75
−
−
ns
Analog Outputs
Output Function Accuracy
Major Accuracy
Minor Accuracy
−
−
±0.75
°
−
−
±1.00
°
Output Shutdown Current, Source
and Sink
Major Coil Drive Output Voltage
Minor Coil Drive Output Voltage
V_BB/2
Minimum Load Resistance
V_BB = Max
V_BB = Min
−
−
I_DR(VBB/2) = ±50 mA
T_A = 105°C
T_A = 25°C
T_A = −40°C
70
−
43
−
−
mA
−
mA
−
0.748 × V_BB
−
V
−
0.744 × V_BB
−
V
(0.5 × V_BB) − 0.1
−
(0.5 × V_BB) + 0.1 V
229
−
171
−
150
−
−
W
−
W
−
W
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