MAX823, MAX823L, MAX823M, MAX823R, MAX823S, MAX823T, MAX823Y, MAX823Z, MAX824, MAX824L, MAX824M, MAX824R, MAX824S, MAX824T, MAX824Y, MAX824Z, MAX825, MAX825L, MAX825M, MAX825R, MAX825S, MAX825T, MAX825Y, MAX825Z 워치독 타이머 및 수동 리셋 기능이 있는 5핀 마이크로프로세서 감시 회로

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전체 데이터 시트 (PDF, 208kB)
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다운로드

The MAX823/MAX824/MAX825* microprocessor (µP) supervisory circuits combine reset output, watchdog, and manual reset input functions in 5-pin SOT23 and SC70 packages. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX823/MAX824/MAX825 are specifically designed to ignore fast transients on V_CC.

Seven preprogrammed reset threshold voltages are available (see Reset Threshold Table). All three devices have an active-low reset output, which is guaranteed to be in the correct state for V_CC down to 1V. The MAX823 also offers a watchdog input and manual reset input. The MAX824 offers a watchdog input and a complementary active-high reset. The MAX825 offers a manual reset input and a complementary active-high reset. The Selector Guide explains the functions offered in this series of parts.

주요기능

애플리케이션/용도

Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power Supplies
Operating Current:
- 6µA (MAX823L/M) (SC70)
- 2µA (MAX825T/S/R/Z/Y) (SC70)
Fully Specified Over Temperature
140ms min Power-On Reset
Guaranteed active-low RESET Valid to V_CC = 1V
Power-Supply Transient Immunity
Watchdog Timer with 1.6s Timeout (MAX823/MAX824)
Manual Reset Input (MAX823/MAX825)
No External Components

	자동차 전자장치
	컴퓨터 및 컨트롤러
	중요 µP 모니터링
	임베디드 컨트롤러
	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

Nom. Watchdog Timeout Range

Supervisor Features

Max. I_CC (µA)

RoHS Available

Industry Qualified

Package

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

Operating Temp. Range (°C)

Price^**

MAX823

1.8 to 2.5
2.5 to 3.3
3.3 to 5.5

Push-Pull

85ms to 300ms

Input (WDI)

1s to 2s

Manual Reset

Yes

Automotive - General

SC-70/5
SOT-23/5

-40 to +125
-40 to +85
0 to +70

$1.15 @ 1k

MAX824

Push-Pull

Input (WDI)

1s to 2s

$1.15 @ 1k

MAX825

Push-Pull

No Watchdog

Manual Reset

$1.10 @ 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.

*특허 출원중.

수동 리셋 및 워치독 타이머 기능이 내장된 액티브 로우 리셋 (MAX823)

워치독 타이머 기능이 내장된 액티브 로우 리셋 및 액티브 하이 리셋 (MAX824)

액티브 기능이 내장된 액티브 로우 리셋 및 액티브 하이 리셋 (MAX825)