T8308 반도체 회로 부품 판매점
PWM Control 800mA Step-Down Converter
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 TM Technology |
tm TE
CH
T8308
PWM Control 800mA Step-Down Converter
FEATURES
• Wide Input Voltage Range: 7V to 30V
• LED Output Current Up to 800mA
• Soft-start
• Single pin on/off and brightness control
using DC voltage or PWM
• High efficiency (up to 97%)
• Up to 1MHz switching frequency
• Typical 5% output current accuracy
• SOT-89 and SOP-8 Lead-free Package
Applications
• LED/Display Back Light Driver
• Lightings
• Portable Communication Devices
• Handheld Electronics
GENERAL DESCRIPTION
The T8308 is a continuous mode inductive
step-down converter, designed for driving
single or multiple series connected LEDs
efficiently from a voltage source higher than
the LED voltage. The device operates from an
input supply between 7V and 30V and
provides an externally adjustable output
current of up to 800mA. Depending upon
supply voltage and external components, this
can provide up to 24 watts of output power.
The T8308 includes the output switch and a
high-side output current sensing circuit, which
uses an external resistor to set the nominal
average output current. The T8308 is available
in SOT-89 and SOP-8 Lead-free package.
PART NUMBER EXAMPLES
PART NO.
T8308-AX
T8308-AD
PACKAGE
SOT-89
SOP-8
TM Technology, Inc. reserves the right
P. 1
to change products or specifications without notice.
Publication Date: Oct. 2014
Revision:C
tm TE
CH
PIN ARRANGEMENT(Top view)
T8308
PIN DESCRIPTION
Symbol
LX
GND
EN
ISENSE
VIN
SOT-89-5
1
2
3
4
5
SOP-8
Description
3 Drain of NDMOS switch
5.6 Ground
1 Enable control signal, H: Active, L: Power Down
8
Connect resistor Rs from this pin to VIN to define nominal average output
current IOUTnom=0.1/Rs
Input voltage (7V to 30V).
7 Decouple to ground with 47uF or higher X7R ceramic capacitor close to
device.
TM Technology, Inc. reserves the right
P. 2
to change products or specifications without notice.
Publication Date: Oct. 2014
Revision:C
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제조업체: TM Technology
( tm )
T8308 converter
데이터시트 다운로드 :
[ T8308.PDF ]
[ T8308 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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