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PDF ( 数据手册 , 数据表 ) T8308

零件编号 T8308
描述 PWM Control 800mA Step-Down Converter
制造商 TM Technology
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T8308 数据手册, 描述, 功能
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







T8308 pdf, 数据表
tm TE
CH
TYPICAL APPLICATION CIRCUITS
T8308
* note : When outputs the big current, the noise are big, this and the system environment and PCB layout have the
influential, may defer to the actual need to increase the capacitor filtration noise.
TM Technology, Inc. reserves the right
P. 8
to change products or specifications without notice.
Publication Date: Oct. 2014
Revision:C














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