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參數(shù)資料
| 型號(hào)： | NCP5005 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Compact Backlight LED Boost Driver(背光LED升壓驅(qū)動(dòng)器) |
| 中文描述： | 緊湊型背光LED升壓驅(qū)動(dòng)器（背光的LED升壓驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 5/23頁(yè) |
| 文件大?。?/td> | 239K |
| 代理商： | NCP5005 |
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NCP5005
http://onsemi.com
5
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.)
Rating
Pin
Symbol
Min
Typ
Max
Unit
High Level Input Voltage
Low Level Input Voltage
4
EN
1.3
0.4
V
V
EN Pull Down Resistor
4
R
EN
100
k
Feedback Voltage Threshold
3
FB
185
200
225
mV
Output Current Stabilization Time Delay following a DC/DC Startup,
@ V
bat
= 3.60 V, L = 22 H, I
out
= 20 mA
1
I
outdly
100
s
Internal Switch ON Resistor @ Tamb = +25
°
C
1
QR
DSON
1.7
5. The overall tolerance depends upon the accuracy of the external resistor.
ESD PROTECTION
The NCP5005 includes silicon devices to protect the pins
against the ESD spikes voltages. To cope with the different
ESD voltages developed in the applications, the builtin
structures have been designed to handle
Body Model (HBM) and
200 V in Machine Model (MM)
on each pin.
2.0 kV
in
Human
DC/DC 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 varies
depending upon the dynamic impedance presented by the
load.
Considering high intensity LED, the output voltage can
range from a low 6.40 V (two LED in series biased with a
low current), up to 21 V, the voltage compliance the chip
can sustain continuously.
The basic DC/DC structure is depicted in Figure 3. With
a 28 V maximum rating voltage capability, the power
device can accommodate high voltage source without any
leakage current downgrading.
POR
LOGIC
CONTROL
TIME_OUT
ZERO_CROSSING
RESET
GND
Vd
sense
Q1
Vds
L1
22 H
V
bat
D1
C
D
D
D
D
GND
Vs
R2
xR
GND
R1
C2
+
GND
Vref
V(Ipeak)
+
Vd
sense
Figure 3. Basic DC/DC Converter Structure
1
3
1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP5005GEVB | 功能描述:電源管理IC開(kāi)發(fā)工具 NCP5005 EVAL BRD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| NCP5005SNT1G | 功能描述:LED照明驅(qū)動(dòng)器 ANA WHITE LED DRIVER RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| NCP5006 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:AC-DC Offline Switching Controllers/Regulators |
| NCP5006_06 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Compact Backlight LED Boost Driver |
| NCP5006EVB | 功能描述:LED 照明開(kāi)發(fā)工具 ANA WHITE LED DRIVER EVB RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
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