Daewoo DTF-2950-100D, Service Manual, Page: 44 / 92

CP-850FX Service Manual
Europe R&D 43
4.10.6 ELECTRICAL CHARACTERISTICS
Ratings
Parameters Terminal Symbols
MIN
T Y P M A X
Units
ower Supply Start-up Operation
Operation Start-up Voltage 4 - 3 VCC(ON) 18.2 V
Operation Stop Voltage 4 - 3 VCC(OFF) 9.6 V
Operation Circuit Current 4 - 3 ICC(ON)
― ―
6 mA
Non Operation Circuit Current 4 - 3 ICC(OFF) ― ― 100 µA
Oscillation Frequency 1 - 3 fOSC 22 kHz
Soft-Start Operation Stop Voltage 5 - 3 VSSOLP(SS) 1 V
Soft-Start Operation Charging Current 5 - 3 ISSOLP(SS) -450 µA
ormal Operation
Overcurrent Detection Threshold Voltage 7 - 3 VOCPBD(LIM) -0.95 V
Bottom-Skip Operation Threshold Voltage 1 7 - 3 VOCPBD(BS1) -0.66 V
Bottom-Skip Operation Threshold Voltage 2 7 - 3 VOCPBD(BS2) -0.44 V
OCP/BD Terminal Outflow Current 7 - 3 IOCPBD µA
Quasi-Resonant Operation Threshold Voltage 1 7 - 3 VOCPBD(TH1) 0.4 V
Quasi-Resonant Operation Threshold Voltage 2 7 - 3 VOCPBD(TH2) 0.8 V
Minimum Quasi-Resonant Signal Input Time 7 - 3 TOFF(MIN)
― ―
1 µsec
FB Terminal Threshold Voltage 6 - 3 VFB(OFF) 1.5 V
FB Terminal Inflow Current (Normal Operation) 6 - 3 IFB(ON) mA
tand-by Operation
Stand-by Operation Start-up Power Supply
Voltage
4 - 3 VCC(S) 11.2 V
Stand-by Power Supply Voltage Interval 4 - 3 VCC(SK) 1.5 V
Stand-by Non-Operational Circuit Current 4 - 3 ICC(S) 30
μ
A
FB Stand-by Operation Threshold Voltage 6 - 3 VFB(S) V
FB Terminal Inflow Current (Stand-by) 6 - 3 IFB(S) µA
Minimum ON Time 1 - 3 TON(MIN) 1 µsec
otection Operation
Maximum ON Time 1 - 3 TON(MAX) 34 µS
OLP Operation Threshold Voltage 5 - 3 VSSOLP(OLP) 5 V
OLP Operation Charging Current 5 - 3 ISSOLP(OLP) -10 µA
Normal Operation Discharging Current 5 - 3 ISSOLP(NOR) 40 µA
OLP Delay Time 1 - 3 TOLP ms
OVP Operational Voltage 4 - 3 VCC(OVP) 27.5 V
Latch Circuit Holding Current ※ 10 4 - 3 ICC(H) ― ― 150 µA
Latch Circuit Releasing Power Supply Voltage
※
10
4 - 3 VCC(La.OFF) 7.3 V
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