NCP1052 Ver la hoja de datos (PDF) - ON Semiconductor
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NCP1052 Datasheet PDF : 26 Pages
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NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
ELECTRICAL CHARACTERISTICS (VCC = 8.0 V, for typical values TJ = 25°C, for min/max values, TJ is the operating junction
temperature range that applies (Note 2), unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
POWER SWITCH CIRCUIT
Power Switch Circuit On−State Resistance
NCP1050, NCP1051, NCP1052 (ID = 50 mA)
TJ = 25°C
TJ = 125°C
NCP1053, NCP1054, NCP1055 (ID = 100 mA)
TJ = 25°C
TJ = 125°C
Power Switch Circuit & Startup Breakdown Voltage
(ID(off) = 100 mA, TA = 25°C)
Power Switch Circuit & Startup Circuit Off−State Leakage Current
(VDS = 650 V) TJ = 25°C
(VDS = 650 V) TJ = 125°C
Switching Characteristics (RL = 50 W, VDS set for ID = 0.7 IIim)
Turn−on Time (90% to 10%)
Turn−off Time (10% to 90%)
CURRENT LIMIT AND THERMAL PROTECTION
Current Limit Threshold (TJ = 25°C) (Note 5)
NCP1050
NCP1051
NCP1052
NCP1053
NCP1054
NCP1055
Conversion Power Deviation (TJ = 25°C) (Note 6)
Propagation Delay, Current Limit Threshold to Power Switch Circuit Output
NCP1050, NCP1051, NCP1052
NCP1053, NCP1054, NCP1055
RDS(on)
V(BR)DS
IDS(off)
ton
toff
Ilim
I2fOSC
tPLH
W
−
22
30
−
42
55
−
10
15
−
23
28
700
−
−
V
mA
−
25
40
−
15
80
ns
−
20
−
−
10
−
mA
93
100
107
186
200
214
279
300
321
372
400
428
493
530
567
632
680
728
−
0
10
%A2Hz
ns
−
135
−
−
160
−
Thermal Protection (VCC = 8.6 V) (Note 2, 3, 4)
Shutdown (Junction Temperature Increasing)
Hysteresis (Junction Temperature Decreasing)
°C
Tsd
TH
140
160
−
−
75
−
STARTUP CONTROL
Startup/VCC Regulation
Startup Threshold/VCC Regulation Peak (VCC Increasing)
Minimum Operating/VCC Valley Voltage After Turn−On
Hysteresis
V
VCC(on)
VCC(off)
VH
8.0
8.5
9.0
7.0
7.5
8.0
−
1.0
−
Undervoltage Lockout Threshold Voltage, VCC Decreasing
VCC(reset)
4.0
4.5
5.0
V
Startup Circuit Output Current (Power Switch Circuit Output = 40 V)
VCC = 0 V
TJ = 25°C
TJ = −40 to 125°C
VCC = VCC(on) − 0.2 V
TJ = 25°C
TJ = −40 to 125°C
Istart
mA
5.4
6.3
7.2
4.5
−
8.0
4.6
5.6
6.6
3.5
−
7.0
Minimum Start−up Drain Voltage (Istart = 0.5 mA, VCC = VCC(on) − 0.2 V)
Vstart(min)
−
13.4
20
V
Output Fault Condition Auto Restart
(VCC Capacitor = 10 mF, Power Switch Circuit Output = 40 V)
Average Switching Duty Cycle
Drst
Frequency
frst
2. Tested junction temperature range for the NCP105X series:
Tlow = −40°C
Thigh = +125°C
3. Maximum package power dissipation limits must be observed.
4. Guaranteed by design only.
5. Adjust di/dt to reach Ilim in 4.0 msec.
6. Consult factory for additional options including test and trim for output power accuracy.
−
6.0
−
%
−
3.5
−
Hz
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