- 您現在的位置：買賣IC網 > PDF目錄363232 > NCP9003SNT1G (ON SEMICONDUCTOR) Compact Backlight LED Boost Driver PDF資料下載
參數資料
| 型號： | NCP9003SNT1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 顯示驅動器 |
| 英文描述： | Compact Backlight LED Boost Driver |
| 中文描述： | LED DISPLAY DRIVER, PDSO5 |
| 封裝： | LEAD FREE, TSOP-5 |
| 文件頁數： | 5/22頁 |
| 文件大?。?/td> | 294K |
| 代理商： | NCP9003SNT1G |
NCP9003
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 Start
up,
@ 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 NCP9003 includes silicon devices to protect the pins
against the ESD spikes voltages. To cope with the different
ESD voltages developed in the applications, the built
in
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
相關PDF資料 |
PDF描述 |
|---|---|
| NCP9004 | 2.65 W Filterless Class−D Audio Power Amplifier |
| NCP9004FCT1G | 2.65 W Filterless Class−D Audio Power Amplifier |
| NCR169D | General Purpose Sensitive Gate Silicon Controlled Rectifier |
| NCR169DRLRA | General Purpose Sensitive Gate Silicon Controlled Rectifier |
| NCR169DRLRM | General Purpose Sensitive Gate Silicon Controlled Rectifier |
相關代理商/技術參數 |
參數描述 |
|---|---|
| NCP9004 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:2.65 W Filterless Class−D Audio Power Amplifier |
| NCP9004FCT1G | 制造商:ON Semiconductor 功能描述:AUD AMP SPKR 1CH MONO 2.63W CLS-D 9PIN FLIP-CHIP - Tape and Reel 制造商:ON Semiconductor 功能描述:IC AMP POWER AUDIO CLASS D 2.65W |
| NC-PA | 制造商:DDK 制造商全稱:DDK Ltd. 功能描述:Conversion Connector |
| NCPL-A021WRF0 | 制造商:Sharp Microelectronics Corporation 功能描述:SUB ONLY COUPLINGSUB T0 NCPL R8190 |
| NCPL-A058WRFZ | 制造商:Sharp Microelectronics Corporation 功能描述:COUPLING |
發(fā)布緊急采購，3分鐘左右您將得到回復。