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參數(shù)資料
| 型號(hào)： | AP8801SG-13 |
| 廠商： | DIODES INC |
| 元件分類： | 穩(wěn)壓器 |
| 中文描述： | SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, SOP-8 |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大小： | 149K |
| 代理商： | AP8801SG-13 |
Diodes Incorporated
LED driving current up to 500mA
Operating input voltage up to 48V
High efficiency up to 92%
High switching frequency up to 500kHz
PWM/DC input for dimming control
Built-in output open-circuit protection
SOP-8L and MSOP-8L are available in “Green”
Molding Compound (No Br, Sb)
Lead Free Finish/RoHS Compliant (Note 1)
The AP8801 is a step-down DC/DC converter designed to drive
LEDs with a constant current. The device can drive up to thirteen
LEDs, depending on the forward voltage of the LEDs, in series
from a voltage source of 8V to 48V. Series connection of the
LEDs provides identical LED currents resulting in uniform
brightness and eliminating the need for ballast resistors. The
AP8801 switches at frequency up to 500kHz. This allows the
use of small size external components, hence minimizing the
PCB area needed.
Maximum output current of AP8801 is set via an external resistor
connected between the V
and SET input pins. Dimming is
achieved by applying either a DC voltage or a PWM signal at the
CTRL input pin. An input voltage of 0.2V or lower at CTRL shuts
down the output at SW and puts the device into a low-current
standby state.
Commercial & industrial lighting
Small LCD panel backlight
Appliances interior lighting
Architecture Detail lighting
Typical Application Circuit
R
SET
= 0.43
AP8801
1
L
1
= 100
μ
H
D
1
V
IN
SET
SW
CTRL
GND
C
1
= 2.2
μ
F
24V_DC
Figure 1: Typical Application Circuit
General Description
Applications
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