MAX6361H, MAX6361L, MAX6361P：SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup

The MAX6361–MAX6364 supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery control functions in microprocessor (µP) systems. The circuits significantly improve system reliability and accuracy compared to that obtainable with separate ICs or discrete components. Their functions include µP reset, backup battery switchover, and power failure warning. The MAX6361–MAX6364 operate from supply voltages as low as +1.2V. The factory-preset reset threshold voltage ranges from 2.32V to 4.63V (see Ordering Information). These devices provide a manual reset input (MAX6361), watchdog timer input (MAX6362), battery-on output (MAX6363), and an auxiliary adjustable reset input (MAX6364). In addition, each part type is offered in three reset output versions: an active-low push-pull reset, an active-low open-drain reset, and an active-high open-drain reset (see Selector Guide at end of data sheet).

Key Features

Low +1.2V Operating Supply Voltage (VCC or VBATT)
Precision Monitoring of +5.0V, +3.3V, +3.0V, and +2.5V Power-Supply Voltages
Debounced Manual Reset Input (MAX6361)
Watchdog Timer with 1.6s Timeout Period (MAX6362)
Battery-On Output Indicator (MAX6363)
Auxiliary User-Adjustable RESET IN (MAX6364)
Three Available Output Structures
- Push-Pull Active-Low RESET, Open-Drain Active-Low RESET, Open-Drain RESET
RESET/Active-Low RESET Valid Down to 1.2V Guaranteed (VCC or VBATT)
Power-Supply Transient Immunity
150ms (min) Reset Timeout Period
Small 6-Pin SOT23 Package

MAX6361, MAX6362, MAX6363, MAX6364: Typical Operating Circuit

Applications/Uses

Computers: Desktop, Workstation, Server
Notebook Computers
Palmtop Computers
Pen Entry Palmtops
Portable Patient Monitoring/Drug Delivery
Portable Test Meters
POS Terminals
Printers and Faxes
Programmable Logic Controllers

DataSheet

title	Download file
MAX6361-MAX6364P Data Sheet	MAX6361-MAX6364P.pdf

Parametrics

Part Number	Reset Thresh. (V)	Reset Out	I_CC (µA)	Oper. Temp. (°C)	Package/Pins	Budgetary Price
Part Number	Reset Thresh. (V)	Reset Out	max	Oper. Temp. (°C)	Package/Pins	See Notes
MAX6361H	2.5 to 3.3 3.3 to 5.5	Active High Open Drain	50	-40 to +85	SOT/6	$3.27 @1k
MAX6361L	2.5 to 3.3 3.3 to 5.5	Active Low Push-Pull			SOT/6	$1.98 @1k
MAX6361P	2.5 to 3.3 3.3 to 5.5	Active Low Open Drain			SOT/6	$2.59 @1k
MAX6362H	2.5 to 3.3 3.3 to 5.5	Active High Open Drain			SOT/6	$3.27 @1k
MAX6362L	2.5 to 3.3 3.3 to 5.5	Active Low Push-Pull			SOT/6	$2.63 @1k
MAX6362P	2.5 to 3.3 3.3 to 5.5	Active Low Open Drain			SOT/6	$2.26 @1k
MAX6363H	2.5 to 3.3 3.3 to 5.5	Active High Open Drain			SOT/6	$3.27 @1k
MAX6363L	2.5 to 3.3 3.3 to 5.5	Active Low Push-Pull			SOT/6	$1.73 @1k
MAX6363P	2.5 to 3.3 3.3 to 5.5	Active Low Open Drain			SOT/6	$2.10 @1k
MAX6364L	1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5	Active Low Push-Pull			SOT/6	$2.63 @1k
MAX6364P	1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5	Active Low Open Drain			SOT/6	$2.26 @1k

Quality and Environmental Data

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX6361HUT23+T	Active		SOT,;6 pin;9 mm²	-40°C to +85°C	Lead Free
MAX6361HUT23-T	No Longer Available	MAX6361HUT23+T	SOT,;6 pin;9 mm²	-40°C to +85°C	No
MAX6361HUT26-T	No Longer Available		SOT,;6 pin;9 mm²	-40°C to +85°C	No
MAX6361HUT29-T	No Longer Available		SOT,;6 pin;9 mm²	-40°C to +85°C	No
MAX6361HUT31+T	Active		SOT,;6 pin;9 mm²	-40°C to +85°C	Lead Free
MAX6361HUT31-T	No Longer Available	MAX6361HUT31+T	SOT,;6 pin;9 mm²	-40°C to +85°C	No
MAX6361HUT44+T	Active		SOT,;6 pin;9 mm²	-40°C to +85°C	Lead Free
MAX6361HUT44-T	Active		SOT,;6 pin;9 mm²	-40°C to +85°C	No
MAX6361HUT46+T	Active		SOT,;6 pin;9 mm²	-40°C to +85°C	Lead Free
MAX6361HUT46-T	No Longer Available	MAX6361HUT46+T	SOT,;6 pin;9 mm²	-40°C to +85°C	No