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TS1451CS Folha de dados(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

Nome de Peças TS1451CS
Descrição Electrónicos  Dual Channel PWM Controller
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Fabricante Electrônico  TSC [Taiwan Semiconductor Company, Ltd]
Página de início  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS1451CS Folha de dados(HTML) 1 Page - Taiwan Semiconductor Company, Ltd

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TS1451
1-7
2003/12 rev. A
TS1451
Dual Channel PWM Controller
Supply Voltage Range 3.6 V to 40V
Output Driving Current 20mA
Oscillator Frequency up to 500KHz
General Description
The TS1451 integrates dual channel PWM control circuit into a single chip, mainly designs for power supply regulator.
All the functions included an on-chip 2.5V reference output, two error amplifiers, and adjustable oscillator, two
dead-time comparators, under voltage lock out, short circuit protection, and dual common-emitter output transistor
circuit.
Recommend the output CE transistors as pre-driver for driving extremely. the dead time control can provide from 0% to
100%. Switching frequency can be adjustable by trimming RT and CT. During low Vcc situation, the under voltage lock
out makes sure that the output are off until the internal circuit is operational normally.
The TS1451 is offered in SOP-16 and DIP-16 package.
Features
Dual PWM Power Control Circuitry
Operating Voltage Can be up to 50V
Adjustable Dead Time Control (DTC)
Under Voltage Lock Out protection (UVLO)
Short Circuit Protection (SCP)
Variable Oscillator Frequency up to 500KHz
2.5V Voltage Reference Output
Pin Assignments
Applications
Backlight Inverter
DC to DC Converters in Computers
Ordering Information
Part No.
Operating Temp.
Package
TS1451CD
DIP-16
TS1451CS
0 ~ +70
oC
SOP-16
Pin Descriptions
Name
Descriptions
CT
Timing Capacitor
RT
Timing Resistor
EA+
Error Amplifier Input (+)
EA-
Error Amplifier Input (-)
FB
Feedback Loop Compensation
DTC
Dead Time Control
Out
Pre-Driver Output
Gnd
Ground
Vcc
Supply Voltage
SCP
Short Circuit Protection
Ref
Voltage Reference
SOP-16
DIP-16


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