NJM2146B is a voltage and current control IC which contains single-supply low offset voltage OP-AMP (2mV max.), low operating OP-AMP, and precision voltage reference. It is suitable for battery charger, second controller of switching regulator systems, and other battery systems.
The document describes the NJM2146B, a voltage and current control integrated circuit containing a single-supply low offset voltage operational amplifier and a precision voltage reference. It is designed for use in battery chargers, switching regulator controllers, and other battery systems.
Key features include an operating voltage range of 2.5V to 18V, an internal precision voltage reference of approximately 1.5V, and availability in DIP-8, DMP-8, and VSP-8 packages. The datasheet provides absolute maximum ratings, recommended operating conditions, and detailed electrical characteristics such as input offset voltage, bias current, gain bandwidth product, and slew rate.
| Operating Voltage | 2.5V ~ 18V |
|---|---|
| Internal Precision Voltage Reference | 1.5V typ. |
| PC Terminal Current | 60mA max. |
| Operating Current | 3 mA max. |
| Package Types | DIP-8, DMP-8, VSP-8 |
| Operating Temperature Range | -40 ~ 85 °C |
| Input Offset Voltage (Ach) | 0.5 to 2 mV typ. |
| Gain Bandwidth Product | 2 MHz typ. |