收藏本站
NCP5007
ANALOG SECTION (Typical values are referenced to T a = +25 ° C, Min & Max values are referenced ?25 ° C to +85 ° C ambient
temperature, unless otherwise noted.)
High Level Input Voltage
Rating
Pin
1
Symbol
EN
Min
1.3
Typ
?
Max
?
Unit
V
Low Level Input Voltage
?
?
0.4
EN Pull Down Resistor
Feedback Voltage Threshold
Output Current Stabilizes @ 5% time delay following a
DC?DC startup @ V bat = 3.6 V, L = 22 m H, I out = 20 mA
Internal Switch ON Resistor @ T amb = +25 ° C
1
4
5
5
R EN
FB
I outdly
QR DSON
?
170
?
?
100
200
100
1.7
?
230
?
?
k W
mV
m s
W
5. The overall tolerance depends upon the accuracy of the external resistor.
THEORY OF OPERATION
The DC?DC converter is designed to supply a constant
current to the external load, the circuit being powered from
a standard battery supply. Since the regulation is made by
means of a current loop, the output voltage will vary
depending upon the dynamic impedance presented by the
load.
POR
Considering a high intensity LED, the output voltage can
range from a low of 6.4 V (two LED in series biased with a
low current), up to 22 V, the maximum the chip can sustain
continuously. The basic DC?DC structure is depicted in
Figure 3.
With a 22 V operating voltage capability, the power
device Q1 can accommodate a high voltage source without
any leakage current degradation.
V bat
L1
22 m H
Vdsense
4
D1
TIME_OUT
Q1
Vds
LOGIC
CONTROL
ZERO_CROSSING
RESET
+
Vdsense
R1
GND
GND
?
V(Ipeak)
?
+
C2
1
R2
xR
Vs
Vref
GND
Figure 3. Basic DC?DC Converter Structure
http://onsemi.com
5
GND
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
NCP5008DMR2 IC LED DRVR WHT BCKLT 10MICROSMD
NCP5010FCT1G IC LED DRVR WHT BCKLT 8-FLIPCHIP
NCP5021MUTXG IC WHITE LED DVR HV AMB 16-UQFN
NCP5050MTTXG IC LED DRIVR PHOTO FLASH 10-WDFN
NCP5111DR2G IC DRIVER HI/LOW SIDE HV 8-SOIC
NCP5304DR2G IC DRIVER HI/LOW SIDE HV 8-SOIC
NCP5355DG IC DRVR SYNC BUCK MOSF 12A 8SOIC
NCP5359ADR2G IC MOSFET GATE DVR DUAL 8-SOIC
相关代理商/技术参数
NCP5007SNT1G 功能描述:LED照明驱动器 White LED Backlight Boost RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
NCP5008 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:AC-DC Offline Switching Controllers/Regulators
NCP5008/D 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:White LED Driver
NCP5008_06 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Backlight LED Boost Driver
NCP5008DMR2 功能描述:LED照明驱动器 15V Output Max LED RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
NCP5008DMR2G 功能描述:LED照明驱动器 15V Output Max LED Backlight RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
NCP5009 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Backlight LED Boost Driver
NCP5009DMR2 功能描述:IC LED DRVR WHT BCKLT 10MICROSMD RoHS:否 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:1 系列:- 恒定电流:- 恒定电压:- 拓扑:PWM，切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:642kHz 电源电压:2.7 V ~ 5.5 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘 供应商设备封装:10-VSON 包装:剪切带 (CT) 工作温度:-30°C ~ 85°C 产品目录页面:1371 (CN2011-ZH PDF) 其它名称:BD1603NUV-E2CT