MAX6335, MAX6336, MAX6337 4引脚、超低电压、低功耗、微处理器复位电路，带有手动复位

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The MAX6335/MAX6336/MAX6337 microprocessor (µP) supervisory circuits monitor the power supplies in 1.8V to 3.3V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external components and adjustments. They also feature a debounced manual-reset input.

These devices perform a single function: they assert a reset signal whenever the V_CC supply voltage declines below a preset threshold or whenever manual reset is asserted. Reset remains asserted for a preset timeout period after V_CC has risen above the reset threshold or after manual reset is deasserted. The only difference among the three devices is their output. The MAX6336 (push/pull) and MAX6337 (open-drain) have an active-low RESET output, while the MAX6335 (push/pull) has an active-high RESET output. The MAX6335/MAX6336 are guaranteed to be in the correct state for V_CC down to 0.7V. The MAX6337 is guaranteed to be in the correct state for V_CC down to 1.0V.

The reset comparator in these ICs is designed to ignore fast transients on V_CC. Reset thresholds are factory-trimmable between 1.6V and 2.5V, in approximately 100mV increments. There are 15 standard versions available (2500 piece minimum-order quantity); contact the factory for availability of nonstandard versions (10,000 piece minimum-order quantity). For space-critical applications, the MAX6335/MAX6336/MAX6337 come packaged in a 4-pin SOT143.

关键特性

应用/使用

Ultra-Low 0.7V Operating Supply Voltage
Low 3.3µA Supply Current
Precision Monitoring of 1.8V and 2.5V Power-Supply Voltages
Reset Thresholds Available from 1.6V to 2.5V, in Approximately 100mV Increments
Debounced Manual Reset
Fully Specified over Temperature
Three Power-On Reset Pulse Widths Available (1ms min, 20ms min, 100ms min)
Low Cost
Three Available Output Structures: Push/Pull active-low RESET, Push/Pull RESET, Open-Drain active-low RESET
Guaranteed RESET/active-low RESET Valid to V_CC = 0.7V (MAX6335/MAX6336)
Power-Supply Transient Immunity
No External Components
4-Pin SOT143 Package
Pin-Compatible with MAX811/MAX812 and MAX6314/MAX6315

	汽车电子
	计算机：台式机、工作站、服务器
	控制器
	精确的µP与µC电源监视
	智能仪表
	Pentium® ll计算机
	便携式电池供电设备

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)

RoHS Available

Industry Qualified

Package

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

Operating Temp. Range (°C)

Price^**

MAX6335

1.2 to 1.8
1.8 to 2.5

Push-Pull

15ms to 85ms
1ms to 15ms
85ms to 300ms

No Watchdog

Manual Reset

1.8

Yes

Automotive - General

SOT-143/4

-40 to +85
0 to +70

$1.05 @ 1k

MAX6336

Push-Pull

$1.05 @ 1k

MAX6337

Open Drain

$1.05 @ 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.