参数资料
型号: AP5724FDCG-7
厂商: Diodes Inc
文件页数: 2/15页
文件大小: 0K
描述: IC LED DRIVER WHITE BCKLGT 6-DFN
标准包装: 1
恒定电流:
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 1MHz ~ 1.4MHz
电源电压: 2.7 V ~ 5.5 V
输出电压: 26V
安装类型: 表面贴装
封装/外壳: 6-UDFN 裸露焊盘
供应商设备封装: 6-DFN2020C(2x2)
包装: 标准包装
工作温度: -40°C ~ 85°C
产品目录页面: 1138 (CN2011-ZH PDF)
其它名称: AP5724FDCGDIDKR
AP5724
Pin Descriptions
Pin Name
SW
GND
FB
EN
OVP
V IN
Functions
Switch Pin. Connect inductor/diode here. Minimize trace area at this pin to reduce EMI.
GND pin.
Feedback Pin. Reference voltage is 0.1V. Connect cathode of lowest LED and a sense resister here. Calculate resistor value
according to the formula: R SET = 0.1V / ILED
Converter On/Off Control Input. A high input at EN turns the converter On, and a low input turns it off. If On/Off control is not
needed, connect EN to the input source for automatic startup. The EN pin cannot be left floating.
Output Voltage detect pin for over voltage protection.
Input Supply Pin. Must be locally bypassed with 1 μ F or 2.2 μ F to reduce input noise.
Functional Block Diagram
OVP
5
Rc
Comparator
A2
CONTROL
LOGIC
Driver
1 SW
Q1
-
A1
+
Cc
OTP
FB 3
VIN 6
V REF
0.1V
Σ
RAMP
EN 4
Enable
Generator
2 GND
1.2MHz
Oscillator
Absolute Maximum Ratings (@T A = +25°C, unless otherwise specified.)
Symbol
V IN
VSW
V OVP
V FB
EN
T J(MAX)
T LEAD
T ST
VIN Pin Voltage
SW Voltage
OVP Pin Voltage
Feedback Pin Voltage
EN
Maximum Junction Temperature
Lead Temperature
Storage Temperature Range
Parameter
Rating
-0.3 to +7
-0.3 to +34
-0.3 to +35
-0.3 to +7
-0.3 to +7
150
300
-65 to +150
Unit
V
V
V
V
V
°C
°C
°C
Caution:
Operation above the absolute maximum ratings can cause device failure. These values, therefore, must not be exceeded under any condition.
Operation at the absolute maximum rating for extended periods, may reduce device reliability.
AP5724
Document number: DS31843 Rev. 4 - 2
2 of 15
www.diodes.com
December 2013
? Diodes Incorporated
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