LM3704是TI公司的一款无产品，LM3704是具有电源故障输入、低线路输出和手动复位功能的微处理器监控电路，本页介绍了LM3704的产品说明、应用、特性等，并给出了与LM3704相关的TI元器件型号供参考。
LM3704 - 具有电源故障输入、低线路输出和手动复位功能的微处理器监控电路 - 无 - 监控器和复位IC - TI公司（Texas Instruments，德州仪器）
The LM3704/LM3705 series of microprocessor supervisory circuits provide the maximum flexibility for monitoring power supplies and battery controlled functions in systems without backup batteries. The LM3704/LM3705 series are available in MSOP-10 and 9-bump micro SMD packages.
Built-in features include the following:
Reset: Reset is asserted during power-up, power-down, and brownout conditions. RESET# is guaranteed down to VCC of 1.0V.
Manual Reset Input: An input that asserts reset when pulled low.
Power-Fail Input: A 1.225V threshold detector for power fail warning, or to monitor a power supply other than VCC.
Low Line Output: This early power failure warning indicator goes low when the supply voltage drops to a value which is 2% higher than the reset threshold voltage.
- Standard Reset Threshold voltage: 3.08V
- Custom Reset Threshold voltages: For other voltages between 2.2V and 5.0V in 10mV increments, contact National Semiconductor Corp.
- No external components required
- Manual-Reset input
- RESET# (LM3704) or RESET (LM3705) outputs
- Precision supply voltage monitor
- Factory programmable Reset Timeout Delay
- Separate Power Fail comparator
- Available in micro SMD package for minimum footprint
- ±0.5% Reset threshold accuracy at room temperature
- ±2% Reset threshold accuracy over temperature extremes
- Reset assertion down to 1V VCC (RESET# option only)
- 28 µA VCC supply current
