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參數(shù)資料
| 型號(hào)： | AIC1647CVTR |
| 廠(chǎng)商： | Analog Integrations Corporation |
| 英文描述： | WHITE LED STEP-UP CONVERTER IN SOT23 |
| 中文描述： | 白光LED升壓型轉(zhuǎn)換器在SOT23封裝 |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大?。?/td> | 413K |
| 代理商： | AIC1647CVTR |
AIC1647
CC
RS
RC
M1
FB
VIN
GND
SW
Internal
Soft Start
PWM
/
PFM
Control
95mV
VREF
+
-
Error
AMP
.
SHDN
Driver
+
-
Current AMP
PWM
Control
Logic
1.2MHz
Oscillator
Slope
Compensation
-
+
Comparator
PIN 1: SW
- Switch
inductor/diode here. Minimize
trace area at this pin to reduce
EMI.
- Ground Pin. Tie directly to local
ground plane.
- Feedback
Pin.
voltage
is
95mV.
cathode of lowest LED and
Pin.
Connect
PIN 2: GND
PIN 3: FB
Reference
Connect
resistor here. Calculate resistor
value according to the formula:
R
FB
= 95mV/I
LED
PIN 4:
SHDN
- Shutdown pin. Tie to higher than
1.5V to enable device, 0.3V or
less to disable device.
PIN 5: VIN
- Power input pin. Bypass VIN to
GND with a capacitor sitting as
close to VIN as possible.
7
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