Daewoo Understanding the STR-S5707 and IC 4665 for Efficient Switching Regulators

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STR-S5707 (Hybrid IC for a Switching Regulator)

(1)General Description

The STR-S5707 is a Hybrid IC with a built in power transistor and a separate excitation control IC, designed for converter type switching mode power supply applications.

The IC is capable of quasi-resonant mode and requires small number of external component.

(2)Feature

•Small SIP isolated package : Resin sealed type (transfer mold)

•Lower power dissipation at a lighter load

•Many protection function : - Pulse-by-pulse over current protection

-Over-voltage protection with a latch

-Thermal protection with a latch

•These protection functions are incorporated and can be latched with an external signal.

(3)Block Diagram

(4) Pin Description

PIN	NAME	SYMBOL	DESCRIPTION

1	Collector	C	Collector of power Tr

2	Ground	GND	ground (Emitter of power Tr)

3	Base	B	Base of power Tr

4	Sink	SINK	Base current (IS) input

5	Over-current	OCP	over-current sensing signal input
	protection

6	Inhibit	INH	input for synchronizing OFF time
	Latch		and latch circuit operation

7	Sensing	SENS	constant voltage control signal input

8	Drive	DRIVE	Base drive current (ID) output

9	Vin	VIN	supply voltage for control circuit

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Contents Chassis CP-370 Contents Specifications RAY Radiation Precaution Safety InstructionFocus Alignment InstructionsScreen White BalanceVertical S-CORRECTION Geometry Vertical CenterVertical Size Vertical SlopePage IC Description Plastic 42 Ysdp Pins Package Block Diagram Cmos Compatible I/O PinsFeature Acquisition DisplaySynchronization Controller Sdip 52 package Supply voltage Block DiagramPin Description Pin Name Symbol DescriptionCvbs PIN Symbol Description FeaturesRGB AudioBlock Diagram Sound if Input Pin Description NameName Description Vertical GuardBeam current limitinq Luminance EAST-WEST Drive TDA4665Base Band Delay Line 3Block Diagram Pin DescriptionPIN Description TDA8395 Secam Decoder Symbol PIN DescriptionTDA6106Q Video Output Amplifier Block Diagram Pin DescriptionVeco I802 PC817TDA8356 DC-coupled vertical deflection circuit TDA7056 BTL Audio Output Amplifier 1 Speaker Model 3Block Diagram 4Pin DescriptionPIN Name Symbol Description STR-S5707 Hybrid IC for a Switching RegulatorRating Unit Symbol Rating UnitMIN TYP MAX Ta=25 Description TerminalTDA8138 5.1V+12V regulator with Disable and Reset TDA 1519BAUDIO Output Amplifier 2 Speaker Model PCA84C 122AIC Remocon PIN Signal DescriptionCircuit Description Vertical synchronization Geometry processingColour decoder Tuning Integrated video filtersRGB output and black current stabilization Base band delay line TDA4665 Horizontal deflection TDA8356 vertical deflectionOscillator, F/B terminal voltage Pin Power Supply STR-S5707Video amplifiers VIN terminal, start-up circuitThermal shutdown circuit Drive circuitOCP over-current protection function Latch circuitNo Raster Trouble Shooting ChartsNo Pictureraster OK No Vertical Scaningone Horizontal Line on Screen No Color Abnormal Normal No Soundpicture OKNo ON-SCREEN Displaypicture OK No External A/VRF OKRemote Control Unit Troublelocal Control OK Line Voltage IC DC Voltage ChartsInput signal User’s control conditionI503TDA8395 I501TDA8374AI301TDA8356 I502TDA4665LOC PART-CODE PART-NAME Part Type Remark Electrical Parts ListPTSPPWA499 Speaker AS DTC-14Q1VM IC AMP 5PTPS60MB Filter Cera TPS 6.0MBEFC-S6ROME3 CEXF1H229V Electro CEXF1H470V Electro 5PXPS45MB Filter Cera TPS-4.5MB Trap Tapping CCZB1H181K Cera DUZ5R1BM Diode Zener Coil Peaking Wire Copper AWG22 1/0.65 TIN Coating R530 RD-AZ203J R703 RD-AZ272J # Front A/V Part List Option Conn ASS’Y LOC Part Name Difference Part ListLOC Part Name Model Remark CP-370 Inch Difference Part ListPage Page Page Page Page Page Page Page Page Page Page