CS289 is 20mA Air-Core Tachometer Drive Circuit manufactured by Cherry Semiconductor Corporation.
| Part Number | Description |
|---|---|
| CS2841B | Automotive Current Mode PWM Controller |
| CS2842A | Off-Line Current Mode PWM Controller |
| CS2843A | Off-Line Current Mode PWM Controller |
| CS2844 | Current Mode PWM Controller |
| CS2845 | Current Mode PWM Controller |
The CS289 is specifically designed for use with air-core meter movements. The IC has charge pump circuitry for frequency-to-voltage conversion, a shunt regulator for stable operation, a function generator, and sine and cosine amplifiers. The buffered sine and cosine outputs will typically sink or source 20mA.
