Transcript Power Management AC-DC Controller IC L6565 – Quasi

200W LCD TV SMPS
L6562 + L6668 + L6565
200W LCD TV SMPS General Features
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Input Voltage range: 100 to 240Vac
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Output Voltages:
–
24V/6A
–
12V/3A
–
5V/4A
–
5VSB/200mA
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Power Factor Correction: Above 0.98
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Low Standby < 3W at 5VSB @ 200mA
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High Efficiency, typical 86% at low line full load
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Synchronous rectification on 24V output.
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Controllable timing sequence
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24V latched short circuit protection
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Hi-cup short circuit protection at other output voltages
L6562 - Power Factor Correction
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Transition Mode Control
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Very Precise Adjustable Output Over
Voltage Protection
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Ultra-Low Startup Current (<70mA)
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ON-CHIP Filter ON Current Sense
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Disable Function
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1% internal reference voltage
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-600mA/+800mA Totem Pole Gate Driver
L6668 - PWM Controller
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Current Mode Controller with
sophisticated standby feature
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On board high voltage startup
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Low quiescent current (<2mA)
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Slope Compensation
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Pulse-by-pulse & Hiccup-Mode OCP
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Interface with PFC Controller
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Disable Function (on/off control)
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Latched Disable for OVP/OTP Function
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Programmable soft start
L6565 – Features Overview
Block Diagram
24V/6A
EMI FILTER &
RECTIFICATION
+
L6565
STW11NM80Z
L6562
STW20NM50
STTH8L06
Discrete
Latched Short-
Syn-rect Drive
Circuit Protection
STP80NF12
STPS10H100CT
Standby
STPS1545D
12V/3A
+
5V/4A
+
SB160
5VSB/0.2A
+
STP9NK70ZFP
L6668
Standby