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參數(shù)資料
| 型號(hào)： | SM8120A |
| 廠商： | Seiko NPC Corporation |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | White LED Driver IC |
| 中文描述： | 白光LED驅(qū)動(dòng)IC |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 201K |
| 代理商： | SM8120A |
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SM8120A
NIPPON PRECISION CIRCUITS INC.—1
White LED Driver IC
OVERVIEW
The SM8120A is a high efficiency step-up DC/DC converter. Due to high voltage CMOS process realizing
24V output supply as maximum value, white LED of 2–4 lights connected in series can be lighted. By connect-
ing in series, current variation among LED is eliminated. Current value sent to white LED can be set by exter-
nal resistors. In addition, brightness can also be adjusted by control to FB pin or CE pin.
FEATURES
I
Boost-up control using PFM
White LED of 2-4 lights (connected in series)
lighted
Output current value can be set by external resis-
tors (51
: 9.8mA, 33
: 15.2mA, 24
Brightness adjustable by control to FB pin or CE
pin
Current variation among LED decreased by high
precision
High efficient drive by step-up model
Supply voltage range: 2.4 to 5.5V
Maximum output voltage: 24V
Quiescent current: 80
μ
A (typ)
Standby current: 1.0
μ
A (max)
R
ON
(Switching MOS-Tr): 2
Maximum switching frequency: 500kHz (typ)
Output current detection accuracy:
Small package: SOT23-5
I
I
: 20.8mA)
I
I
I
I
I
I
I
I
(typ)
I
I
±
2%
I
APPLICATIONS
I
Cellular phone
Pager
Digital still camera
Handy terminal
PDAs
Portable games
White LED drive
LCD bias supply
Flash memory supply
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I
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ORDERING INFORMATION
PINOUT
(Top view)
PACKAGE DIMENSIONS
(Unit: mm)
Device
Package
SM8120AH
SOT23-5
VDD
VSS
SW
1
2
3
CE
FB
5
4
1.9 ± 0.2
2.9 ± 0.2
0
1
+
0.15
+ 0.05
0.12 M
0
0.1
0.95
1
0
2
+
0.4 ± 0.1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SM8120AH | White LED Driver IC |
| SM8143 | EL Sheet Driver |
| SM8143A | EL Sheet Driver |
| SM8143AV | EL Sheet Driver |
| SM8144 | EL Sheet Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM8120AH | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:White LED Driver IC |
| SM8121A | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:White LED Driver IC |
| SM8121AD | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:White LED Driver IC |
| SM8121AH | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:White LED Driver IC |
| SM8122A | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:White LED Driver IC |
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