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AP3616 Datasheet(PDF) 3 Page - BCD Semiconductor Manufacturing Limited

Part No. AP3616
Description  SIXTEEN-CHANNEL, 75mA CURRENT SINK WITH CURRENT MATCH
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Maker  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Homepage  http://www.bcdsemi.com
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AP3616 Datasheet(HTML) 3 Page - BCD Semiconductor Manufacturing Limited

 
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SIXTEEN-CHANNEL, 75mA CURRENT SINK WITH CURRENT MATCH AP3616
Data Sheet
3
BCD Semiconductor Manufacturing Limited
Jul. 2012 Rev. 1. 2
Pin Number
Pin Name
Function
SOIC-28
HSOP-28
1 to 8
28 to 21
1 to 8
9 to 15 & 28
CH1 to CH8
CH9 to CH16
White LED cathode connection pins. If not used, leave them uncon-
nected
916
FLAG
Error flag pin. When LED load goes to error (short or open ), the flag
open drain output will close
10
17
FB
Feedback pin. This pin is an interface terminal, which samples the
voltage of each channel, and outputs the lowest voltage of the string
to DC/DC converter
11
18
FBX
This pin is an interface terminal. Connect it to FB pin can achieve
parallel application. If not used, leave it unconnected
12
19
EN
Enable pin. Logic high enables the IC and logic low disables the IC
13
20
VIN
Input voltage pin
14
21
GND
Ground pin
15
22
ISET
LED current setting pin. An external resistor is connected to this pin.
Current on each channel can be expressed by ICHAN-
NEL=1.194*1560/RISET
16
23
DIM
Dimming control pin. Adding a PWM signal or DC signal to this pin
to control LED dimming. Connect it to high voltage level if not used
17
24
SYNF
Synchronous PWM frequency setting pin. A nF level of capacitor
should be connected to this pin to set PWM frequency at about 80Hz
to 25kHz
18
25
SYN
PWM dimming synchronous pin, this pin outputs DC transformed
PWM signal to synchronize parallel AP3616 and power converter, if
not used, leave it unconnected
19
26
SCP
LED short trigger voltage setting pin. This pin is used to set the LED
short circuit protection voltage level
20
27
OVP
This pin is used to trigger OVP condition. OVP triggering voltage
should be lower than the OVP voltage of its cascade chip, such as ,
AP3039A in Figure 19
Pin Description


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