MAX1508ETA datasheet(2/11 Pages) MAXIM

2 / 11 page

Linear Li+ Battery Charger with Integrated Pass FET,

Thermal Regulation, and ACOK in 3mm x 3mm TDFN

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 5V, VBATT = 4.0V, ACOK = EN = CHG = unconnected (for the MAX1508 and MAX1508Z), EN = VL (for the MAX1508Y), RISET

= 2.8k

Ω to GND, CVL = 0.47µF, BATT bypassed to GND with 1µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at

TA = +25°C.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

IN, CHG to GND .....................................................-0.3V to +14V

VL, BATT, ISET, EN, EN, ACOK to GND ..................-0.3V to +6V

VL to IN...................................................................-14V to +0.3V

IN to BATT Continuous Current.............................................0.9A

Continuous Power Dissipation (TA = +70°C)

8-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW

Short-Circuit Duration.................................................Continuous

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage Range

013

Input Operating Range

4.25

6.50

VIN - VBATT, VIN rising

ACOK Trip Point, IN

VIN - VBATT, VIN falling

VIN rising

6.5

7.5

Overvoltage Lockout Trip Point

VIN hysteresis

0.11

Charging (IIN - IBATT)1

Disabled, EN = VL (MAX1508/MAX1508Z),

EN = GND (MAX1508Y)

0.8

1.5

IN Input Current

OFF state (VIN = VBATT = 4.0V)

0.065

VL Output Voltage

IVL = 100µA

3.3

VL Load Regulation

IVL = 100µA to 2mA

-71

-200

VL Temperature Coefficient

IVL = 100µA

-2

mV/°C

VIN rising

2.95

VL Undervoltage Lockout Trip Point

Hysteresis

0.17

VIN = 0 to 4V

BATT Input Current

EN = VL (MAX1508/MAX1508Z), EN = GND

(MAX1508Y)

410

µA

Maximum RMS Charge Current

0.8

TA = 0°C to +85°C

4.162

4.2

4.238

Battery Regulation Voltage

IBATT = 0

TA = -40°C to +85°C

4.150

4.2

4.250

BATT Removal Detection Threshold

VBATT rising

4.4

4.67

4.9

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