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부품번호 | TD8203 기능 |
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기능 | White LED Step-up Converter | ||
제조업체 | Techcode | ||
로고 | |||
전체 14 페이지수
Techcode®
White LED Step-up Converter
DATASHEET
TD8203
General Description
Features
The TD8203 is a current-mode and fixed frequency boost
converter with an integrated N-FET to drive white LEDs.
The series connection allows the LED current to be
identical for uniform brightness. Its low on-resistance of
NFET and low feedback voltage reduce power loss and
achieve high efficiency. Fast switching frequency(1.5MHz
typical) allows using small-size inductor and both of input
and output capacitors. An over voltage protection
function,which monitors the output voltage via OVP pin,
stops switching of the IC if the OVP voltage exceeds the
over voltage threshold. An internal soft-start circuit
eliminates the inrush current during start-up.
The TD8203 also integrates under-voltage lockout,
overtemperature protection, and current limit circuits to
protect the IC in abnormal conditions. The TD8203 is
available in a SOT-23-6A
Wide Input Voltage from 2.7V to 6V
Fixed 1.5MHz Switching Frequency
Reference Voltage : 0.2V
PWM Brightness Control with Wide Frequency
Range of 100Hz to 100kHz
Build-In Power MOSFET : 0.2Ω
Open-LED Protection
Under-Voltage Lockout Protection
Over-Temperature Protection
<1mA Quiescent Current during Shutdown
SOT-23-6A
Halogen and Lead Free Available
RoHS Compliant
Applications
White LED Display Backlighting
Cell Phone and Smart Phone
PDA, PMP, MP3
Digital Camera
December, 20, 2011
Techcode Semiconductor Limited
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Techcode®
White LED Step-up Converter
Absolute Maximum Ratings
Symbol
Parameter
VIN
VLX
VOVP
PD
TJ
TSTG
TSDR
VIN Supply Voltage (VIN to GND)
FB, EN to GND
LX to GND Voltage
OVP to GND
Power Dissipation
Maximum Junction Temperature
Storage Temperature
Maximum Lead Soldering Temperature, 10 Seconds
Recommended Operating Conditions
Symbol
Parameter
θ JA
Junction-to-Ambient Resistance in Free Air
θ JC
VIN
Junction-to-Case Resistance
VIN Supply Voltage(VIN to GND)
VOVP
VOUT to GND
CIN Input Capacitor
COUT
Output Capacitor
L1 Converter Output Inductor
TA Ambient Temperature
TJ Junction Temperature
DATASHEET
TD8203
Rating
-0.3 ~ 7
-0.3 ~ VIN
-0.3 ~ 27.5
-0.3 ~ 27.5
Internally Limit
150
-65 ~ 150
260
Unit
V
V
V
V
vW
℃
℃
℃
Typical Value
220
120
2.7-6
VIN-22
4.7~
4.7~
2.2-10
-40~85
-40~125
Unit
oC/W
oC/W
V
V
uF
uF
uH
oC
oC
December, 20, 2011
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4페이지 Techcode®
White LED Step-up Converter
Typical Operating Characteristics(Cont.)
DATASHEET
TD8203
Operating Waveforms
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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 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |