MAX17435 查看數據表（PDF） - Maxim Integrated

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MAX17435

High-Frequency, Low-Cost SMBus Chargers

Maxim Integrated 

High-Frequency,

Low-Cost SMBus Chargers

ABSOLUTE MAXIMUM RATINGS

DCIN, CSSP, BATT, CSIP to GND......................... -0.3V to +28V

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

VCC, SCL, SDA, VAA, EN, ACIN, ITHR,

ADAPTLIM, ACOK to GND................................... -0.3V to +6V

PDSL to GND......................................................... -0.3V to +37V

GND to PGND....................................................... -0.3V to +0.3V

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

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

BST to GND............................................................ -0.3V to +34V

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

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

CC, IINP to GND...................................... -0.3V to (VLDO + 0.3V)

LDO Short Circuit to GND.......................................... Momentary

Continuous Power Dissipation (TA = +70NC)

24-Pin TQFN (derate 20.8mW/NC above +70NC).......1666mW

Operating Temperature Range........................... -40NC to +85NC

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

Storage Temperature Range............................ -65NC to +150NC

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

Soldering Temperature....................................................+260NC

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

(Circuit of Figure 1, no load on LDO, VDCIN = VCSSP = VCSSN = 19V, VLX = 0V, VBST - VLX = 5V, VBATT = VCSIP = VCSIN = 16.8V,

TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

INPUT SUPPLIES

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Adapter Present Quiescent

Current (Note 1)

IDCIN + ICSSP +

ICSSN

Charging enabled,

VADAPTER = 19V,

VBATTERY = 16.8V

Charging disabled

3

6

mA

1.5

2.2

mA

BATT + CSIP + CSIN +

LX Input Current

DCIN Input Current

VCC Supply Current

DCIN Input Voltage Range

for Charger

IDCIN

ICC

VBATT = 16.8V

Adapter absent or charger

shut down (Note 1)

VBATT = 2V to 19V, adapter present (Note 1)

Charger disabled

Charger added

8

2.0

FA

200 650

0.7

1.0

mA

1.5

2.5

mA

26

V

DCIN Undervoltage-Lockout

Trip Point for Charger

DCIN Input Voltage Range

CHARGE-VOLTAGE REGULATION

Battery Full-Charge Voltage

and Accuracy

VDCIN falling

VDCIN rising

ChargingVoltage() = 0x41A0

ChargingVoltage() = 0x3130

ChargingVoltage() = 0x20D0

ChargingVoltage() = 0x1060

7

7.2

V

7.7

7.9

8

26

V

16.733 16.8 16.867 V

-0.4

+0.4

%

12.516 12.592 12.668 V

-0.6

+0.6

%

8.333 8.4 8.467

V

-0.8

+0.8

%

4.15 4.192 4.234

V

-1.0

+1.0

%

Battery Undervoltage-Lockout

Trip Point for Trickle Charge

3

3.5

4

V

2   _______________________________________________________________________________________

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