Philips NE56631-43D
The NE56631-XX is a family of Active-LOW, power-on resets that offers precision threshold voltage detection within ±3% and super low operating supply current of typically 1.5 µA. With its ultra low supply current and high precision voltage threshold detection capability, the NE56631-XX is well suited for various battery powered applications such as reset circuits for logic and microprocessors, voltage check, and level detecting.GENERAL DESCRIPTION
Several detection threshold voltages are available at 1.9 V, 2.0 V, 2.7 V, 2.8 V, 2.9 V, 3.0 V, 3.1 V, 4.2 V, 4.3 V, 4.4 V, 4.5 V, and 4.6 V. Other thresholds are offered upon request at 100 mV steps from 1.9 V to 4.6 V.FEATURES
● High precision threshold detection voltage:● Super low operating supply current: ICCH=1.5 µA typ.; ICCL=1.0 µA typ.
APPLICATIONS
VS ±3%● Hysteresis voltage: 50 mV typ.
● Internal Power-On-Reset Delay time: 20 µs typ.
● Detection threshold voltage: 1.9 V, 2.0 V, 2.7 V, 2.8 V, 2.9 V, 3.0 V, 3.1 V, 4.2 V, 4.3 V, 4.4 V, 4.5 V, and 4.6 V
● Reset for microprocessor and logic circuits
● Voltage level detection circuit
● Battery voltage check circuit
● Detection circuit for battery backup
● Other detection threshold voltages available upon request at 100 mV steps from 1.9 V to 4.6 V
● Large low reset output current: 30 mA typ.
● Reset assertion with VCC down to 0.65 V typ. SIMPLIFIED SYSTEM DIAGRAM VCC VCC NE56631-XX VOUT GND RESET LOGIC SYSTEM SL01739 Figure 1.