CS8191 Просмотр технического описания (PDF) - ON Semiconductor

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CS8191

Precision Air-Core Tach/Speedo Driver with Short Circuit Protection

ON Semiconductor 

CS8191

In some cases a designer may wish to use the CS8191 only

as a driver for an air–core meter having performed the F/V

conversion elsewhere in the circuit.

Figure 11 shows how to drive the CS8191 with a DC

voltage ranging from 2.0 V to 6.0 V. This is accomplished by

forcing a voltage on the F/VOUT lead. The alternative scheme

shown in Figure 12 uses an external op amp as a buffer and

operates over an input voltage range of 0 V to 4.0 V.

100 kΩ

VREG

CS8191

CP–

–

+

10 kΩ

N/C

BIAS

VIN

2.0 V to 6.0 V DC

F/VOUT

Figure 11. Driving the CS8191 from an External

DC Voltage

Figures 11 and 12 are not temperature compensated.

100 kΩ

100 kΩ

VIN

+

0 V to 4.0 V DC

–

10 kΩ

100 kΩ

100 kΩ

CS8191

BIAS

+

–

CP–

F/VOUT

Figure 12. Driving the CS8191 from an External

DC Voltage Using an Op Amp Buffer

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