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參數(shù)資料
| 型號： | LC410591FN |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 600 kHz SWITCHING FREQ-MAX, QCC16 |
| 封裝： | 4 X 4 MM, VQFN-16 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大小： | 84K |
| 代理商： | LC410591FN |
LC410591FN
No.A0089-4/11
Pin Assignment
Pin Functions
Pin Name
Pin No.
Pin Description
VIN
2
Power supply input pin. Connects a capacitor of 2.2
F between the VIN pin and GND pin.
C1A
4
Flying capacitor (1)+
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.
ISET
13
External resistor pin. The maximum LED current is determined by ILED(mA)=48/RSET(k).
VREF
16
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.
GND
8
Power supply GND. The switching current of the charge pump flows to this pin.
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
F between the VCP pin and GND pin.
TEST
14
Not used. Always set to OPEN.
ILC01757
12
11
10
9
12
3
4
5
6
7
8
16
15
14
13
LED_IN1
LED_IN2
LED_IN3
LED_IN4
NC**
V
IN
C2B
C1A
Top view
ISET
TEST*
BRGT
VREF
GND
C1B
C2A
VCP
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