Daewoo DTX-21G2 Service Manual

CP-520V Service Manual4.5.4 PIN DESCRIPTION304.5.5 CONTROL PART - ELECTRICAL CHARACTERISTICSPIN NAME SYMBOL DESCRIPTION1 Drain D MOSFET drain3 Source/Ground S/GND Ground4 Supply Vcc Power Supply5 Overload Protection SS/OLP Overload Protection and Soft Start Operation Time set up6 Feedback FB Constant Voltage Control Signal Input,Burst mode Oscillation Control7 Overcurrent Protection OCP/BD Overcurrent Protection Signal Input/Bottom Detection Signal InputLimitsCharacteristic Symbol Test Conditions Min. Typ. Max. UnitsStart-Up OperationOperation Start Voltage V CC(ON) Turn-on, V CC = 0 19.9 V 16.3 18.2 19.9 VSoft-Start Operation Stop Voltage V SS/OLP 1.1 1.2 1.4 VSoft-Start Oper. Charging Current I SS/OLP -390 -550 -710 μAOperation Stop Voltage VCC(OFF) Turn-off, V CC = 19.9 8.8 V 8.8 9.7 10.6 VCircuit Current in Non-Operation ICC(OFF) V CC Aμ001––V51=Normal OperationDrain-Source Breakdown Voltage V(BR)DSS ID V––056Aμ003=Drain Leakage Current IDSS VDS Aμ003––V056=On-State Resistance rDS(on) ID = 1.9 A, T J = +25°C – – 0.96 ΩtemiTgnihctiwS f – – 400 nsItnerruCtiucriC CC(ON) – – 6.0 mAOscillation Frequency fosc 19 22 25 kHzBottom-Skip Oper. Threshold Volt. V OCPBD(BS1) -605 -665 -720 mVV OCPBD(BS2) -385 -435 -485 mVQuasi-Resonant Oper. Threshold V OCPBD(TH1) 280 400 520 mVV OCPBD(TH2) 670 800 930 mVFeedback-Pin Threshold Voltage VFB(OFF) 1.32 1.45 1.58 VFeedback-Pin Current IFB(ON) 600 1000 1400 μAStandby OperationStandby Operation Start Voltage VCC(S) V CC = 0 12.2 V 10.3 11.1 12.1 VStandby Oper. Start Volt. Interval V CC 1.10 1.35 1.65 VStandby Non-Operation Current ICC(S) V CC Aμ6502–V2.01=Feedback-Pin Current IFB(ON) V CC Aμ410.4–V2.01=Feedback-Pin Threshold Voltage VFB(S) V CC = 12.2 V 0.55 1.10 1.50 VMinimum ON Time t on(min) 0.5 0.8 1.2 μs