The UC3903NG4 is a quad supply and line monitor integrated circuit designed for monitoring up to four separate voltage levels. It features an internal op-amp inverter, allowing for the monitoring of negative supply voltages. The device provides programmable under-voltage and over-voltage thresholds, centered around a precision 2.5-V reference, with input hysteresis for stable operation. It includes three open-collector outputs capable of sinking over 30 mA, which indicate fault conditions such as under-voltage, over-voltage, and a "power OK" status. The UC3903 operates within a supply voltage range of 8 V to 40 V and has a typical standby current of 7 mA. Additionally, it incorporates a general-purpose op-amp for auxiliary functions, making it versatile for various applications. The device is available in an 18-pin PDIP package.
Quad Supply and Line Monitor 18-PDIP 0 to 70
Supervisor Open Drain or Open Collector 4 Channel 18-PDIP
IC SUPERVISOR 4 CHANNEL 18DIP
| Texas Instruments | Quarktwin Technology Ltd. | Lingto Electronic Limited | |
|---|---|---|---|
| Product Category | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips |
| Product Number | UC3903NG4 | UC3903NG4 | UC3903NG4 |
| Product Name | UC3903 Quad Supply and Line Monitor | Supervisors | PMIC - Supervisors |
| Number of Supplies | 4 | 4; 4 | |
| Output Options | Open Drain; Active-low,Open-drain | Open Drain | Open Drain; Open Drain or Open Collector |
| Type | PDIP,PLCC,SOIC | DIP; 18-DIP (0.300\", 7.62mm) | |
| IQ | 7000 µA |
