8731AE datasheet(2/32 Pages) MAXIM

2 / 32 page

SMBus Level 2 Battery Charger

with Remote Sense

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDCIN = VLX = VCSSP = VCSSN = 19V, VBST - VLX = 4.5V, VFBSA = VFBSB = VCSIP = VCSIN = 16.8V, BATSEL = GND = PGND = 0,

CLDO = 1µF, VCC = LDO, CREF = 1µF, CDAC = 0.1µF, VDD = 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per

Figure 1; TA = 0

°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

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.

DCIN, CSSN, CSIN, FBSA, FBSB to GND..............-0.3V to +28V

CSSP to CSSN, CSIP to CSIN, PGND to GND ......-0.3V to +0.3V

BST to GND ............................................................-0.3V to +32V

BST to LX..................................................................-0.3V to +6V

DHI to LX.................................................-0.3V to +(VBST + 0.3)V

DLO to PGND..........................................-0.3V to +(LDO + 0.3)V

LX to GND .................................................................-6V to +28V

CCI, CCS, CCV, DAC, REF,

IINP to GND ...........................................-0.3V to (VVCC + 0.3)V

VDD, SCL, SDA, BATSEL, ACIN, ACOK, VCC to GND,

LDO to PGND ......................................................-0.3V to +6V

Continuous Power Dissipation (TA = +70

°C)

28-Pin Thin QFN

(derate 20.8mW/

°C above +70°C)........................1666.7 mW

Operating Temperature Range ...........................-40

°C to +85°C

Junction Temperature ......................................................+150

°C

Storage Temperature Range .............................-60

°C to +150°C

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

°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

CHARGE-VOLTAGE REGULATION

16.716

16.8

16.884

ChargingVoltage() = 0x41A0

-0.5

+0.5

12.491

12.592

12.693

ChargingVoltage() = 0x3130

-0.8

+0.8

8.333

8.4

8.467

ChargingVoltage() = 0x20D0

-0.8

+0.8

4.150

4.192

4.234

Battery Full-Charge Voltage and

Accuracy

ChargingVoltage() = 0x1060

-1.0

+1.0

Battery Undervoltage-Lockout

Trip Point for Trickle Charge

2.5

CHARGE-CURRENT REGULATION

CSIP-to-CSIN Full-Scale Current-

Sense Voltage

78.22

80.64

83.06

7.822

8.064

8.306

RS2, Figure 1 = 10m

Ω;

ChargingCurrent() = 0x1f80

-3

3.809

3.968

4.126

RS2, Figure 1 = 10m

Ω;

ChargingCurrent() = 0x0f80

-4

Charge Current and Accuracy

RS2, Figure 1 = 10m

Ω;

ChargingCurrent() = 0x0080 (128mA)

400

Charge-Current Gain Error

Based on ChargeCurrent() = 128mA and 8.064A

-2

FBSA/FBSB/CSIP/CSIN

Input Voltage Range

8731AE Datasheet(PDF) 2 Page - Maxim Integrated Products

8731AE Datasheet(HTML) 2 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Datasheet Download

Link URL