Features: · Small 6-Pin SOT23 Package
· Precision Factory-Set VCC Reset Thresholds Between 2.33V and 4.63V
· Guaranteed RESET Valid to VCC = +1V
· 100ms min Reset Pulse Width
· Debounced CMOS-Compatible Manual-Reset Input
· Voltage Monitor for Power-Fail or Low-Battery WarningApplication · Portable Computers
· Telecom Equipment
· Networking Equipment
· Portable/Battery-Powered Equipment
· Multivoltage Systems
· Embedded Control SystemsPinout
SpecificationsVCC to GND...........................................................................-0.3V to +6V
RESET, RESET(MAX6342/MAX6344/MAX6345) ......... -0.3V to (VCC + 0.3V)
RESET (MAX6343)................................................................ -0.3V to +6V
MR, PFI, PFO.............................................................-0.3V to (VCC + 0.3V)
Input Current, VCC ..........................................................................50mA
Output Current, RESET, RESET ........................................................50mA
Continuous Power Dissipation (TA = +70°C)
6-Pin SOT23 (derate 4mW/°C above +70°C)................................320mW
Operating Temperature Range .......................................-40°C to +85°C
Junction Temperature..................................................................+150°C
Storage Temperature Range ........................................-65°C to +150°C
Lead Temperature Range (soldering, 10sec).............................. +300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe MAX6343 of microprocessor (P) supervisory circuits monitors power supplies in digital systems. The MAX6343 significantly improve system reliability and accuracy compared to separate ICs or discrete components.
The MAX6343 provides factory-trimmed VCC reset threshold voltages from 2.33V to 4.63V and operate with supply voltages between +1V and +5.5V. A +1.25V threshold detector allows for a power-fail warning, for lowbattery detection, or for monitoring another power supply. The MAX6342 contains an MR input and an active-low push-pull reset. The MAX6343 and MAX6344 are identical to the MAX6342 except they provide an active-low, opendrain reset and an active-high, push-pull reset, respectively. The MAX6345 provides a second reset output in place of the MR input to give it an active-high push-pull reset and an active-low push-pull reset.
The MAX6343 is packaged in a miniature 6-pin SOT23.
MAX6343 Data Sheet
