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參數(shù)資料
| 型號： | LC410591FN |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | CMOS IC Power Supply IC with Built-in White LED Charge Pump |
| 中文描述： | CMOS集成電路電源集成電路內(nèi)置電荷泵白光LED |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 94K |
| 代理商： | LC410591FN |
LC410591FN
No.A0089-4/11
Pin Assignment
Pin Functions
Pin Name
Pin No.
Pin Description
VIN
C1A
2
Power supply input pin. Connects a capacitor of 2.2
μ
F between the VIN pin and GND pin.
Flying capacitor (1)+
4
C1B
7
Flying capacitor (1)-
C2A
6
Flying capacitor (2)+
C2B
3
Flying capacitor (2)-
BRGT
15
LED brightness adjustment signal input. LED current is adjusted by PWM signal (max. 50kHz). The LED current
changes linearly with respect to the PWM signal duty ratio and the brightness changes. When the low level continues
for 22ms or longer, the LC410591FN enters the shutdown mode, and the LED turns off.
External resistor pin. The maximum LED current is determined by ILED(mA)=48/RSET(k
).
Internal reference voltage output (standard 1.2V). Connect a capacitor of 1nF between the VREF pin and GND pin.
The VREF pin must always be set to a high impedance state.
Power supply GND. The switching current of the charge pump flows to this pin.
ISET
13
VREF
16
GND
8
LED_IN1 to 4
9-12
Connect LEDs between the VCP pin and LED_IN1 to IN4. If not connected, set these pins to OPEN or connect to GND.
VCP
5
Charge pump output. Connect a capacitor of 2.2
μ
F between the VCP pin and GND pin.
TEST
14
Not used. Always set to OPEN.
ILC01757
12
11
10
9
1
2
3
4
5
6
7
8
16
15
14
13
L
L
L
L
N
V
C
C
Top view
ISET
TEST*
BRGT
VREF
GND
C1B
C2A
VCP
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