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LTM8062

8062f

TYPICAL PERFORMANCE CHARACTERISTICS

Temperature Rise vs IBAT,

14.4V Float Voltage

VIN Standby Mode Current

vs Temperature

Temperature Rise vs IBAT,

7.2V Float Voltage

Temperature Rise vs IBAT,

8.4V Float Voltage

GND (Bank 1, Pin L7): Power and Signal Ground Return.

BAT (Bank 2): Battery Charge Current Output Bus. The charge

function operates to achieve the final float voltage at this pin.

The auto-restart feature initiates a new charging cycle when

the voltage at the ADJ pin falls 2.5% below the float voltage.

Once the charge cycle is terminated, the input bias current of

the BAT pin is reduced to minimize battery discharge while

the charger remains connected.

VINA (Bank 3): Anode of input reverse protection Schottky

diode. Connect the input power here if input reverse voltage

protection is desired.

VIN (Bank 4): Charger Input Supply. Decouple with at least

4.7μF to GND. Connect the input power here if no input reverse

voltage protection is needed.

BIAS (Pin G7):TheBIASpinconnectstotheinternalpowerbus.

In most cases connect to VBAT. If this is not desirable, connect

to a power source greater than 2.8V and less than 10V.

CHRG (Pin K7): Open-Collector Charger Status Output; typi-

cally pulled up through a resistor to a reference voltage. This

status pin can be pulled up to voltages as high as VIN and can

sink currents up to 10mA. During a battery charging cycle,

CHRG is pulled low. When the charge current falls below C/10,

PIN FUNCTIONS

IBAT (mA)

1000

8062 G19

500

1500

2000

VINA = 24V

VINA = 12V

IBAT (mA)

1000

8062 G20

500

1500

2000

VINA = 12V

VINA = 24V

IBAT (mA)

1000

8062 G21

500

1500

2000

VINA = 24V

TEMPERATURE (°C)

–50

8062 G22

100

VINA = 24V

VINA = 12V

TA = 25°C, unless otherwise noted.

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