Datasheet Details
| Part number | LB1821 |
|---|---|
| Manufacturer | SANYO (now Panasonic) |
| File Size | 223.46 KB |
| Description | Power Brushless Motor Pre-Driver |
| Datasheet |
 LB1821 Datasheet
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Description
1.
Speed Control Circuit This IC implements speed control using the combination of a speed discriminator circuit and a PLL circuit.
The speed discriminator and the PLL circuit output (using a charge pump technique) an error signal once every two FG periods.
Features
- Direct PWM drive output Speed discriminator + PLL speed control circuit FG and integrating amplifiers Forward/reverse switching circuit Braking circuit (short braking) Speed lock detection output Full complement of on-chip protection circuits, including lock protection, current limiter, and thermal shutdown protection circuits. SANYO: QIP44MA Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply volta.