MAX6412, MAX6413, MAX6414, MAX6415, MAX6416, MAX6417, MAX6418, MAX6419, MAX6420 Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay

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The MAX6412-MAX6420 low-power microprocessor supervisor circuits monitor system voltages from 1.6V to 5V. These devices are designed to assert a reset signal whenever the V_CC supply voltage or RESET IN falls below its reset threshold or the manual reset input is asserted. The reset output remains asserted for the reset timeout period after V_CC and RESET IN rise above the reset threshold and the manual reset input is deasserted. The reset timeout is externally set by a capacitor to provide more flexibility.

The MAX6412/MAX6413/MAX6414 feature fixed thresholds from 1.575V to 5V in approximately 100mV increments and a manual reset input. The MAX6415/MAX6416/MAX6417 are offered with an adjustable reset input that can monitor voltages down to 1.26V and the MAX6418/MAX6419/MAX6420 are offered with one fixed input and one adjustable input to monitor dual-voltage systems.

The MAX6412/MAX6415/MAX6418 have an active-low, push-pull reset output. The MAX6413/MAX6416/MAX6419 have an active-high, push-pull reset output and the MAX6414/MAX6417/MAX6420 have an active-low, open-drain reset output. All of these devices are offered in a SOT23-5 package and are fully specified from -40°C to +125°C.

Key Features

Applications/Uses

Monitor System Voltages from 1.6V to 5V
Capacitor-Adjustable Reset Timeout Period
Manual Reset Input (MAX6412/MAX6413/MAX6414)
Adjustable Reset Input Option (MAX6415-MAX6420)
Dual-Voltage Monitoring (MAX6418/MAX6419/MAX6420)
Low Quiescent Current (1.7µA, typ)
3 RESET Output Options
- Push-Pull active-low RESET
- Push-Pull RESET
- Open-Drain active-low RESET
Guaranteed Reset Valid to V_CC = 1V
Power-Supply Transient Immunity
Small SOT23-5 Packages

	Automotive
	Battery-Powered Computers/Controllers
	Computers
	Critical µP Monitoring
	Embedded Controllers
	Intelligent Instruments
	Medical Equipment
	Portable Equipment
	Set-Top Boxes

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

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

Price^**

MAX6412

1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5

Push-Pull

15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable

No Watchdog

Manual Reset

1.5

2.5

$0.91 @ 1k

MAX6413

Push-Pull

Manual Reset

1.5

$0.91 @ 1k

MAX6414

Open Drain

Manual Reset

1.5

$0.91 @ 1k

MAX6415

Push-Pull

Adjustable Reset Input

$0.91 @ 1k

MAX6416

Push-Pull

Adjustable Reset Input

$0.91 @ 1k

MAX6417

Open Drain

Adjustable Reset Input

$0.91 @ 1k

See All Supervisors (1 Monitored Voltage) (268)

Key Specifications: Supervisors (2 Monitored Voltages)

Part Number

Interface

Reset Threshold Range (V)

Active-Low Reset Output

Active-High Reset Output

Min. Reset Timeout Range

Watchdog Feature

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

Price^**

MAX6418

Factory Fixed
R/C Adjustable

1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5

Push-Pull

15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable

No Watchdog

Adjustable Reset Input

1.5

2.5

$0.91 @ 1k

MAX6419

Push-Pull

$0.91 @ 1k

MAX6420

Open Drain

$0.91 @ 1k

See All Supervisors (2 Monitored Voltages) (70)

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.