MAX803L, MAX803M, MAX803R, MAX803S, MAX803T, MAX803Z, MAX809J, MAX809L, MAX809M, MAX809R, MAX809S, MAX809T, MAX809Z, MAX810L, MAX810M, MAX810R, MAX810S, MAX810T, MAX810Z 3핀 마이크로프로세서 리셋 회로

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The MAX803/MAX809/MAX810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits.

These circuits perform a single function: they assert a reset signal whenever the V_CC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after V_CC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.

The MAX803 has an open-drain output stage, while the MAX809/MAX810 have push-pull outputs. The MAX803's open-drain active-low RESET output requires a pull-up resistor that can be connected to a voltage higher than V_CC. The MAX803/MAX809 have an active-low RESET output, while the MAX810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on V_CC, and the outputs are guaranteed to be in the correct logic state for V_CC down to 1V.

Low supply current makes the MAX803/MAX809/MAX810 ideal for use in portable equipment. The MAX803 is available in a 3-pin SC70 package, and the MAX809/MAX810 are available in 3-pin SC70 or SOT23 packages.

주요기능

애플리케이션/용도

Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages
Fully Specified Over Temperature
Available in Three Output Configurations
- Open-Drain active-low RESET Output (MAX803)
- Push-Pull active-low RESET Output (MAX809)
- Push-Pull RESET Output (MAX810)
140ms min Power-On Reset Pulse Width
12µA Supply Current
Guaranteed Reset Valid to V_CC= +1V
Power Supply Transient Immunity
No External Components
3-Pin SC70 and SOT23 Packages

	자동차 전자장치
	컴퓨터: 데스크톱, 워크스테이션, 서버
	컨트롤러
	중요 µP 및 µC 전원 모니터링
	인텔리전트 장비
	휴대용 배터리로 동작하는 기기

Key Specifications: Supervisors (1 Monitored Voltage)

Part Number

Reset Threshold Range (V)

Active-Low Reset Output

Active-High Reset Output

Min. Reset Timeout Range

Watchdog Feature

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

RoHS Available

Industry Qualified

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX803

1.8 to 2.5
2.5 to 3.3
3.3 to 5.5

Open Drain

85ms to 300ms

No Watchdog

1.5

Yes

SC-70/3

-40 to +85
0 to +70

$0.94 @ 1k

MAX809

Push-Pull

Automotive - AECQ100
Automotive - General

SC-70/3
SOT-23/3

-40 to +105
-40 to +125

$0.94 @ 1k

MAX810

Push-Pull

SC-70/3
SOT-23/3

-40 to +105
-40 to +125

$0.94 @ 1k

See All Supervisors (1 Monitored Voltage) (268)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.