MIC2753-TBM5

• Undervoltage and overvoltage monitor
• Separate overvoltage flag output
• Generates 140ms (minimum) power-on reset pulse
• Debounced manual reset input
• Choice of active-high (MIC2753) or active-low (MIC2754) reset outputs
• Low 30mA typical supply current
• No external components needed
• IttyBitty™ SOT-23-5 package

• Computer systems
• Embedded controllers
• Power supplies
• Telecommunications systems

Supply Voltage (V_IN) ...................................... 0.3V to 10V
Reset Voltage (V_RST) ........................... 0.3V to V_IN + 0.3V
Manual Reset Voltage (V_MR) ................ 0.3V to V_IN + 0.3V
Reset Current (I_RST) ...................................................10mA
Continuous Power Dissipation
(P_D at T_A = +85) ..................................................200mW
Storage Temperature (T_S) ......................... 65 to +150
ESD Rating, Note 3
Supply Voltage (V_IN) .......................................... 1.5V to 7V
Ambient Temperature (T_A) ......................... 40 to +85
Junction Temperature (T_J) ........................................ 150
Manual Reset (V_MR) .............................................0V to V_IN
Thermal Resistance
(JA) ...................................................................325/W

The MIC2753 and MIC2754 are ultraminiature, full-featured, power supply supervisors featuring active-high and activelow reset outputs, respectively.

The MIC2753/4 includes an undervoltage detector with a power-on reset generator and reset output, an overvoltage detector with a separate output for activating crowbar circuits, and a debounced manual reset input. Typical supply current is a low 30mA.

MIC2753 and MIC2754 provide a 140ms minimum reset output at power-on and assert their reset outputs any time the input voltage deviates beyond preset overvoltage or undervoltage thresholds. Reset outputs remain asserted for 140ms (minimum) after the input returns to normal or after releasing the manual reset. When an overvoltage condition is detected, the overvoltage output of MIC2753 and MIC2754 is immediately activated. Hysteresis on both thresholds prevents erratic operation due to noise.