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부품번호 | PC113 기능 |
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기능 | Step Up Converter for White LED Driver | ||
제조업체 | SITI | ||
로고 | |||
전체 14 페이지수
PC112/PC113
Version : A.001
Issue Date : 2004/10/01
File Name : SP-PC112/PC113-A.001.doc
Total Pages: 14
Step Up Converter for White LED Driver
新竹市科學園區展業一路 9 號 7 樓之 1
SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Road I, Science Based Industrial Park,
Hsin-Chu, Taiwan 300, R.O.C.
Tel:886-3-5645656 Fax:886-3-5645626
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Absolute Maximum Ratings
PC112/PC113
Parameter
Supply Voltage
LX Voltage
EN Voltage
Power Dissipation
Storage Temperature
Operating Temperature
Junction Temperature
Symbol
VDD
VLX
VEN
Pd
Tstg
Topr
TJ
Rating
5.5
24
5.5
2.5
-65~140
-40~120
160
Unit
V
V
V
mW
oC
oC
oC
Electrical characteristics, VDD=3.6V, Ta = 25 oC . (unless otherwise specified)
PARAMETER
SYMBOL
Operating Input Voltage VDD
CONDITION
FB PIN Voltage
VFB
FB Vol. Temp. Coefficient
Switch-on Resistance
TFB
RSW
ILED = 20mA
Switch Max On-time
Maximum Duty Cycle
Switching Frequency
Efficiency
TON
DMAX
FSW
η
Supply Current
IDD
IDDQ
VEN=High
VEN=Low
Shutdown Input Current
IEN VEN=High
VEN=Low
*Over voltage protection
VP
MIN TYP MAX Unit
2.8 3.6 5
V
85 95 105 mV
+92 µV/°C
1.5 Ω
1.4 1.5 1.6 µS
80 %
450 500 550 KHz
85 %
1 mA
0.1 µA
0.2 mA
10 nA
23 V
*Note1 : Only PC113 build this function
-3 - Version:A.001
4페이지 點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Typical performance characteristics (cond.)
PC112/PC113
0.1
0.098
0.096
0.094
0.092
0.09
0.088
5
Feedback voltage vs Load current
4x LEDs
3x LEDs
2x LEDs
10 15 20 25 30
Load current (mA)
Frequency vs Temperature
560
540
520
500
480
460
440
420
-20 0 20 40 60 80 100 120
Temperature (degree)
NOTE1 :The white LED forward voltage is about 3.6V, so PC112/PC113 could drive up to 6
series white LEDs.
NOTE2 : To chose D1(Schottky diode), it must has fast switch characteristics and low
forward voltage. We recommend the MBR0520in this application.
NOTE3 : The ripple of input voltage could be minimized with C1. Thus, a large value of
capacitor C1 is suggested. With the application of a RC-filter (R1 and C2) to VDD
pin, the stability of circuit is enhanced. The ripple of output voltage also could be
improved with C3. In most designs, the low ESR (equivalent series resistance)
capacitors are desirable, like multi-layer capacitor. A 1uF to 2.2uF output
capacitor is sufficient for most applications.
0.095
NOTE4 : ILED = R2 (A)
-6 - Version:A.001
7페이지 | |||
구 성 | 총 14 페이지수 | ||
다운로드 | [ PC113.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
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