AIC1783 Ver la hoja de datos (PDF) - Analog Intergrations

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AIC1783

Battery Charge Controller

Analog Intergrations 

AIC1783

n BLOCK DIAGRAM

MODE

GND VCC

TIMER

REF

Battery Voltage

Protection Setting

MODE

Selection

Bandgap

Reference &

Voltage

Regulator

Oscillator

Charge Control

State Machine

Display

Control

Unit

Charge

Control Unit

LED

ICON

13-bit

A/D

Battery

Voltage

Protection

n PIN DESCRIPTIONS

PIN 1: REF- Reference voltage input,

acceptable voltage range :

(VCC-1.4V) ~ (0.5VCC-0.4V)

PIN 2: TIMER- Determining the period of

safety timer with an external

resistor connected to GND.

PIN 3: MODE- Determining the mode of

operation for the AIC1783.

PIN 4: GND- Power ground.

VBT

PIN 5: LED- Open-drained output used to

indicate the battery charging

status.

PIN 6: ICON- Open-drained output, used to

control the charging current to

the battery.

PIN 7: VBT- Divided battery voltage input to

sense the battery voltage.

PIN 8: VCC- Power supply input at 5V±10%.

6

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