AIC1783 查看數據表（PDF） - Analog Intergrations
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AIC1783 Datasheet PDF : 11 Pages
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AIC1783
RTIMER (KΩ )
11
23
48
74
100
152
206
314
491
667
OSC.
Freq.(KHz)
262.4
131.2
65.6
43.7
32.8
21.9
16.4
10.9
7.3
5.5
Safety timer
(min.)
10
20
40
60
80
120
160
240
360
480
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 0.1µF
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 VCC, the AIC1783 enters the test mode.
The test mode can be used to significantly reduce
production test time.
MODE pin Mode Function
VCC
Test Safety timer period scaled
down to 1/32
Floating Normal Normal operation
GND
AC –∆V detection disabled
Display the Battery Charging Status
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:
LED
Power Fast Charge
Fault
ON Charging Completed Conditions
4Hz
1Hz
ON
OFF
Flashing
Charging Current Control
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
Power Fast
ON Charging
ON
OFF
Charge
Completed
1/128
Duty cycle
Fault
Conditions
ON
10
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