AIC1783 AIC [Analog Intergrations Corporation], AIC1783 Datasheet - Page 10

• Manufacturer Part Number: AIC1783
• Description: Battery Charge Controller
• Manufacturer: AIC [Analog Intergrations Corporation]

Selecting Mode of Operation
The AIC1783 provides three modes of operation:
normal, test, and AC mode determined by the
setting of MODE pin. The AIC1783 will operate
normally when the MODE pin is left floating (a 0.1 F
capacitor is recommended to be tied to MODE pin if
the charge circuit works in a noisy environment).
When the MODE pin is biased to GND, the function
of - V detection is disabled. When the MODE pin is
biased to V
The test mode can be used to significantly reduce
production test time.
MODE pin
R
Floating
GND
TIMER
VCC
100
152
206
314
491
667
23
48
74
11
(K )
CC
,
the AIC1783 enters the test mode.
Normal Normal operation
Mode
Test
AC
Freq.(KHz)
OSC.
262.4
131.2
65.6
43.7
32.8
21.9
16.4
10.9
Safety timer period scaled
down to 1/32
– V detection disabled
7.3
5.5
Function
Safety timer
(min.)
120
160
240
360
480
10
20
40
60
80
Display the Battery Charging Status
Charging Current Control
The AIC1783 provides an open-drained output, LED
pin, to indicate the battery charging status. The
outputs of LED pin are shown in the following table:
As shown in the typical application circuit, the
AIC1783 offers an open-drained output pin, ICON
pin, to control the charging current flow in fast
charge state and switch on to inhibit the charging
current flow in fault conditions. When fast charge is
completed, the AIC1783 enters the trickle charge
mode. In trickle charge mode, the ICON pin output
switches with 1/128 duty cycle.
ICON
LED
Power
ON
ON
Power
1Hz
ON
Charging
Charging
Flashing
Fast
OFF
Fast
4Hz
Completed
Completed
Duty cycle
Charge
Charge
1/128
ON
AIC1783
Conditions
Conditions
Fault
OFF
Fault
ON
10