FAN7563 Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Fabricante

FAN7563

Lithium-Ion Charger Controller

Fairchild Semiconductor 

Pin Assignments (Continued)

FAN7563/FAN7564

OUTPUT 1

ISEN 2

CS 3

GND 4

NC 5

CHA- 6

FB 7

14 VCC

13 VSEN

12 IREF

11 MONIT

10 NC

9 ERROR

8 LDODRV

Pin Definitions (Continued)

Pin Number

Pin Name

1

OUTPUT

2

ISEN

3

CS

4

GND

6

CHA-

7

FB

8

LDODRV

9

ERROR

11

MONIT

12

IREF

13

VSEN

14

VCC

Pin Function & Descrition

Output pin for charging control. An external photocoupler is drived

from the output for constant voltage and constant current charging

control.

Constant current loop reference Input.

Charging current sensing input . It is connected to a sense resistor

(system ground)

Ground

Charging current monitoring feedback input. monitoring output

voltage can be changed by alternating the value of external resistor

which is connected to the pin6, CHA-

LDO output voltage sensing input. It is normally connected to the

LDO output through a resistor divider.

LDO driving output. This is connected to the base of external TR

(KSA539)

LDO dropout error flag. This keeps the error signal off until the bias

voltage for micro controller reaches the threshold voltage. Error

signal becomes ON when the voltage reaches 4.8V.

(With hysteresis 60mV)

Charging current monitoring output. This pin is connected to a micro

controller and detects the amplified voltage derived from CS pin.

Reference current control input. The Amplifier reference current is

controlled according to the resistor which is connected to the pin

IREF.

Voltage sensing input for constant Battery voltage control. It is

normally connected to the Battery charger output through a resistor

divider.

Power supply input. The typical operating voltage range is 2.5V to

16V.

3

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