MAX1647 查看數據表（PDF） - Maxim Integrated

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MAX1647

Chemistry-Independent Battery Chargers

Maxim Integrated 

Chemistry-Independent

Battery Chargers

ABSOLUTE MAXIMUM RATINGS

DCIN to AGND..........................................................-0.3V to 30V

DCIN to IOUT...........................................................-0.3V to 7.5V

BST to AGND ............................................................-0.3V to 36V

BST, DHI to LX ............................................................-0.3V to 6V

LX to AGND ..............................................................-0.3V to 30V

THM, CCI, CCV, DACV, REF,

DLO to AGND ................................................-0.3V to (VL + 0.3V)

VL, SEL, INT, SDA, SCL to AGND (MAX1647) ...........-0.3V to 6V

SETV, SETI to AGND (MAX1648)................................-0.3V to 6V

BATT, CS+ to AGND.................................................-0.3V to 20V

PGND to AGND .....................................................-0.3V to +0.3V

SDA, INT Current ................................................................50mA

VL Current ...........................................................................50mA

Continuous Power Dissipation (TA = +70°C)

16-Pin SO (derate 8.7mW/°C above +70°C).................696mW

20-Pin SSOP (derate 8mW/°C above +70°C) ...............640mW

Operating Temperature Range

MAX1647EAP, MAX1648ESE ...........................-40°C to +85°C

Storage Temperature.........................................-60°C to +150°C

Lead Temperature (soldering, 10sec) .............................+300°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.

ELECTRICAL CHARACTERISTICS

(VDCIN = 18V, VREF = 4.096V, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.)

PARAMETER

SUPPLY AND REFERENCE

DCIN Input Voltage Range

DCIN Quiescent Current

VL Output Voltage

VL Load Regulation

VL AC_PRESENT Trip Point

REF Output Voltage

REF Overdrive Input Current

SWITCHING REGULATOR

Oscillator Frequency

DHI Maximum Duty Cycle

DHI On-Resistance

DLO On-Resistance

BATT Input Current (Note 1)

CS Input Current (Note 1)

BATT, CS Input Voltage Range

CS to BATT Single-Count

Current-Sense Voltage

CS to BATT Full-Scale

Current-Sense Voltage

Voltage Accuracy

CONDITIONS

7.5V < VDCIN < 28V, logic inputs = VL

7.5V < VDCIN < 28V, no load

ILOAD = 10mA

MAX1647

0µA < ISOURCE < 500µA

High or low

High or low

VL < 3.2V, VBATT = 12V

VL < 5.15V, VBATT = 12V

VL < 3.2V, VCS = 12V

VL < 5.15V, VCS = 12V

MAX1647, SEL = open,

ChargingCurrent( ) = 0x0020

MAX1647, SEL = open,

ChargingCurrent( ) = 0x07F0;

MAX1648, VSETI = 1.024V

MAX1647, ChargingVoltage( ) = 0x1060,

ChargingVoltage( ) = 0x3130; MAX1648,

VSETV = 3.15V, VSETV = 1.05V

MIN TYP

7.5

4

5.15

5.4

3.20

4

3.74

3.9

200

250

89

93

4

6

1

350

1

170

0

2.94

170

185

-0.65

MAX UNITS

28

V

6

mA

5.65

V

100

mV

5.15

V

4.07

V

700

µA

300

kHz

%

7

Ω

14

Ω

5

µA

500

5

µA

400

19

V

mV

200

mV

0.65

%

2 _______________________________________________________________________________________

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