MAX1508ETA+T by Analog Devices

Linear Li+ Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOK Flag in 3mm x 3mm TDFN

Status: Active
Series: MAX1508, MAX1508Y, MAX1508Z
RoHS: Unknown
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The MAX1508 is an intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear charger for a single-cell lithium-ion (Li+) battery. The MAX1508 integrates the current-sense circuit, MOS pass element, and thermal-regulation circuitry, and also eliminates the reverse-blocking Schottky diode, to create the simplest and smallest charging solution for hand-held equipment. The MAX1508 functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and full-charge indication. The MAX1508Y and MAX1508Z eliminate the prequalification state to allow startup into a load without a battery. Proprietary thermal-regulation circuitry limits the die temperature to +100°C when fast charging or while exposed to high ambient temperatures, allowing maximum charging current without damaging the IC. The MAX1508 achieves high flexibility by providing an adjustable fast-charge current by an external resistor. Other features include the charging status (active-low CHG) of the battery, an active-low control input (active-low EN) for the MAX1508 and MAX1508Z (active-high control input for the MAX1508Y), and an active-low input power-source detection output (active-low ACOK). The MAX1508 accepts a +4.25V to +13V supply, but disables charging when the input voltage exceeds +7V to protect against unqualified or faulty AC adapters. The MAX1508 operates over the extended temperature range (-40°C to +85°C) and is available in a compact 8-pin thermally enhanced 3mm x 3mm thin DFN package with 0.8mm height.

Where to Buy

Prices starting from US$3.00

Distributor Stock
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Farnell
from US$3.08
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Analog Devices
from US$3.48
454
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element14
from US$3.00
-
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Features

Stand-Alone Linear 1-Cell Li+ Battery Charger
No External FET, Reverse-Blocking Diode, or Current-Sense Resistor Required
Programmable Fast-Charge Current (0.8A max)
Proprietary Die-Temperature Regulation Control (+100°C)
+4.25V to +13V Input Voltage Range with Input Overvoltage Protection (OVP) Above +7V
Charge-Current Monitor for Fuel Gauging
Low Dropout Voltage—130mV at 0.425A
Input Power-Source Detection Output (Active-Low ACOK)
Soft-Start Limits Inrush Current
No Prequalification State for the MAX1508Y and MAX1508Z
Charge Status Output (Active-Low CHG) for LED or Microprocessor Interface
Small 3mm x 3mm 8-Pin Thin DFN Package, 0.8mm High
Active-Low Charge Enable (Active-Low EN) (MAX1508 and MAX1508Z)
Active-High Charge Enable (EN) (MAX1508Y)

Specifications

Charging VIN (V) (max) 7
Max. ICHG (A) 0.8
Cell Chemistry Li-IonLi-Polymer
# Lithium Ion Cells 1
Protected VIN (V) (max) 13
Charger (V) 4.2
Oper. Temp. (°C) -40 to +85
Package/Pins TDFN/8
BudgetaryPrice (See Notes) 2.24


MAX1508ETA+T Semiconductors - ICs by Analog Devices

BATTERY CHARGER LI-ION 800MA TDFN-8

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Battery Type Li-Ion
Input Voltage 13V
Battery Charge Voltage 4.2V
Charge Current Max 800mA
Battery IC Case Style TDFN
No. of Pins 8Pins
No. of Series Cells 1
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Linear Li+ Battery Charger wit | Analog Devices
BATTERY CHARGER, LI-ION, 800MA, TDFN-8 | Farnell

Frequently Asked Questions

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Is the MAX1508ETA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, element14 and Farnell have stock available or on a lead time for MAX1508ETA+T .

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