MAX8808XETA+T by Analog Devices

1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN


The MAX8808X/MAX8808Y/MAX8808Z intelligent, stand-alone constant-current/constant-voltage (CCCV), thermally regulated linear chargers are designed for charging a single-cell lithium-ion (Li+) battery. The MAX8808X/MAX8808Y/MAX8808Z integrate the current-sense circuit, MOS pass element, and thermal-regulation circuitry, and eliminate the reverse-blocking Schottky diode to create the simplest and smallest charging solution for handheld equipment. The MAX8808X functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and fullcharge indication. The MAX8808Y and MAX8808Z eliminate the prequalification state to allow startup into a load without a battery. Proprietary thermal-regulation circuitry limits the die temperature when fast-charging or while exposed to high ambient temperatures, allowing maximum charging current without damaging the IC. The MAX8808X/MAX8808Y/MAX8808Z achieve high flexibility by providing an adjustable fast-charge current with an external resistor. Other features include a battery charging-status indicator (active-low CHG), an active-low control input (EN) for the MAX8808X and MAX8808Z (active-high control input for the MAX8808Y), and an active-low input power-source detection output (active-low ACOK). The MAX8808X/MAX8808Y/MAX8808Z accept a +4.25V to +15V supply, but disable charging when the input voltage exceeds +7V to protect against unqualified or faulty AC adapters. The MAX8808X/MAX8808Y/MAX8808Z operate over the extended temperature range (-40°C to +85°C) and are available in a compact 8-pin thermally enhanced 2mm x 2mm TDFN package with 0.8mm (max) height.

Where to Buy

Prices starting from US$2.33

Distributor Stock
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Farnell
from US$2.33
4,542
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Analog Devices
from US$2.60
101,682
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Newark Electronics
from US$2.55
4,586
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element14
from US$2.63
4,542
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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 (1A max)
Proprietary Die Temperature Regulation Control (+115°C)
+4.25V to +15V Input Voltage Range with Input OVP Above +7V
Charge-Current Monitor for Fuel Gauging
Low Dropout Voltage—300mV at 500mA
Input Power-Source Detection Output (Active-Low ACOK) and Charge-Enable Input (Active-Low EN or EN)
Soft-Start Limits Inrush Current
Charge-Status Output (Active-Low CHG) for LED or Microprocessor (µP) Interface
Tiny 2mm x 2mm 8-Pin TDFN Package, 0.8mm (max) Height

Specifications

Charging VIN (V) (max) 6.5
Max. ICHG (A) 1
Cell Chemistry Li-IonLi-Polymer
# Lithium Ion Cells 1
Protected VIN (V) (max) 15
Charger (V) 4.2
Oper. Temp. (°C) -40 to +85
Package/Pins TDFN/8
BudgetaryPrice (See Notes) 1.85


MAX8808XETA+T Semiconductors - ICs by Analog Devices

BATT CHARGER LI-ION 1A TDFN-8

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

Specifications

Battery Type Li-Ion
Input Voltage 15V
Battery Charge Voltage 4.2V
Charge Current Max 1A
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

1A Linear Li+ Battery Chargers | Analog Devices
Battery Charger, Li-Ion, 85Deg C | Newark Electronics
BATT CHARGER, LI-ION, 1A, TDFN-8 | element14

Frequently Asked Questions

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Is the MAX8808XETA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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