CS8442 datasheet(2/4 Pages) CHERRY

2 / 4 page

Electrical Characteristics: Unless otherwise stated, these specifications apply for -40ûC to +105ûC, VCC = 6.5 to 15.5 VDC. All

voltage shall be referenced to Gnd unless otherwise noted. Overvoltage shutdown of coils occurs when VCC >16V.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

* Voltage across the coils shall be measured at the specific voltages, but shall also be within linearly interpolated limits.

s Supply

Supply Voltage Range

TA = -40¡C to +105¡C

6.5

15.5

TA = -40¡C to +25¡C

6.5

24.0

Supply Current

VCC = 15.5 VDC

Outputs not loaded

Overvoltage Shutdown

s Speed Sensor

Input Frequency Range

400

Switching Threshold

1.6

3.0

VDC

Hysteresis

300

Input Bias Current

VIN = 0.8VDC to VCC

±1

µA

Input Voltage Range

VDC

Operating Input Voltage

10K Ohm Resistor in Series

-15

VDC

to VCC

Output Saturation Voltage

ICC=1.3mA

0.4

Output Leakage

VCC=5.5V

µA

Input Clamp Current

I Clamp at VIN = 0 VDC

-0.4

-5.0

s Coil Output Drivers

Coil Load

+25¡C

198

210

222

Coil Inductance

Coil Resistance Temperature

Coefficient

0.39

%/¡C

* Energized Coil Voltage

(Both Polarities) A and B

VCC = 6.5 VDC

VCC -1.50

VDC

VCC = 10.0 VDC

VCC -1.60

VDC

VCC = 15.5 VDC,TA= -20¡C to +105¡C VCC-1.75

VDC

VCC = 15.5 VDC,TA= -40¡C to -20¡C

VCC-2.00

VDC

De-Energized Coil Leakage

±100

µA

Current

s Short Circuit Protection

Short Circuit Threshold

275

400

Coil A + Coil B

Short Circuit Turn Off Delay

µs

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