MAX6436UT+T by Analog Devices

Low-Power, Single/Dual-Level Battery Monitors with Hysteresis

Status: Active
Series: MAX6436
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX6427-MAX6438 are single/dual-level battery monitors with internal hysteresis. These devices are offered with single (MAX6427/MAX6428/MAX6429, MAX6433/MAX6434/MAX6435) or dual (MAX6430/MAX6431/MAX6432, MAX6436/MAX6437/MAX6438) low-battery output indicators, which can be used to indicate three battery conditions: battery is good (operate system in normal mode), battery is weak (operate system in low-power mode), or battery is empty (disable the system). These devices are ideal for monitoring single lithium-ion (Li+) cells or multicell alkaline/NiCd/NiMH power supplies. When the power-supply voltage drops below the specified low threshold, the low-battery output asserts. When the voltage rises above the specified high threshold, the low-battery output is deasserted following a 140ms minimum timeout period. The timeout period ensures that the supply voltages have stabilized before power-converter or microprocessor activity is enabled. The MAX6427-MAX6438 family is available with several monitoring options. The MAX6427/MAX6428/MAX6429 offer factory-trimmed battery-monitor thresholds, with a single low-battery output. The MAX6430/MAX6431/MAX6432 also feature factory-trimmed thresholds, but have two low-battery outputs. The MAX6433-MAX6438 have user-adjustable threshold voltages permitting the user to select the hysteresis range, and consequently the sensitivity of the system to noise. A wide hysteresis range also prevents chattering that can result due to battery recovery after load removal. Single low-battery outputs are supplied by the MAX6433/MAX6434/MAX6435 and dual low-battery outputs by the MAX6436/MAX6437/MAX6438. The MAX6427-MAX6438 family is available with three output logic options for convenient interface with system power circuitry or microprocessors. The family is offered in small SOT23 and SOT143 packages and is fully specified over temperature.

Where to Buy

Prices starting from US$1.12

Distributor Stock
Logo for Rochester Electronics
Rochester Electronics
from US$1.12
55,000
in stock
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Logo for Newark
Newark Electronics
from US$3.13
1,566
in stock
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Logo for element14 Singapore
element14
from US$3.78
1,566
in stock
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Logo for Farnell UK
Farnell
from US$3.03
1,566
in stock
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Features

Factory-Trimmed or User-Adjustable Threshold Options Factory-Trimmed Low Thresholds from 1.6V to 2.1V or 2.6V to 3.1V in 100mV Increments (MAX6427-MAX6432) Factory-Trimmed High Thresholds from 2.3V to 2.6V or 3.3V to 3.6V in 100mV Increments (MAX6427-MAX6432) User-Adjustable Low/High Thresholds with 615mV Internal Reference (MAX6433-MAX6438)
Factory-Trimmed Low Thresholds from 1.6V to 2.1V or 2.6V to 3.1V in 100mV Increments (MAX6427-MAX6432)
Factory-Trimmed High Thresholds from 2.3V to 2.6V or 3.3V to 3.6V in 100mV Increments (MAX6427-MAX6432)
User-Adjustable Low/High Thresholds with 615mV Internal Reference (MAX6433-MAX6438)
Low Current (1µA, typ)
Single or Dual Low-Battery Outputs
Push-Pull active-low LBO, Open-Drain active-low LBO, and Open-Drain LBO Options
140ms Minimum LBO Timeout Period
Immune to Short Battery Voltage Transients
Guaranteed Valid LBO Logic State to BATT = 1.0V
-40°C to +85°C Operating Temperature Range
Small 3, 4, 5 and 6-Pin SOT Packages
No External Components Required (MAX6427-MAX6432)

Specifications

Reset Thresh. (V) 0 to 1.21.2 to 1.81.8 to 2.52.5 to 3.33.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active LowPush-Pull
Interface R/C Adjustable
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Power Fail Comparator/Low Battery Detect
ICC (µA) (max) 1.5
Package/Pins SOT23/6
BudgetaryPrice (See Notes) 1.58

Last 6 months Inventory & Pricing History

MAX6436UT+T Semiconductors - ICs by Analog Devices

BATT MONITOR ALKALINE/NICD/NIMH SOT-23

Semiconductors - ICs
> Power Management ICs - PMIC
> Battery Management
> Battery Supervisor & Monitor ICs
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Battery Type Alkaline NiCd NiMH
IC Interface Type -
No. of Batteries 2
Supply Voltage Min 1.6V
Supply Voltage Max 5.5V
Battery IC Case Style SOT-23
No. of Pins 6Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL -
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Battery Monitor, Alkaline/Nicd/Nimh | Newark Electronics
BATTERY MONITOR, ALKALINE/NICD/NIMH | element14

Frequently Asked Questions

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Is the MAX6436UT+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Rochester Electronics, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX6436UT+T .

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