NCP1031DR2 Ver la hoja de datos (PDF) - ON Semiconductor
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NCP1031DR2
ON Semiconductor
NCP1031DR2 Datasheet PDF : 18 Pages
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NCP1030, NCP1031
DC ELECTRICAL CHARACTERISTICS (VDRAIN = 48 V, VCC = 12 V, CT = 560 pF, VUV = 3 V, VOV = 2 V, VFB = 2.3 V,
VCOMP = 2.5 V, TJ = −40°C to 125°C, typical values shown are for TJ = 25°C unless otherwise noted.) (Note 2)
Characteristics
Symbol
Min Typ
Max
Unit
OSCILLATOR
Frequency (CT = 560 pF, Note 3)
TJ = 25°C
TJ = −40°C to 125°C
Frequency (CT = 100 pF)
Charge Current (VCT = 3.25 V)
Discharge Current (VCT = 3.25 V)
Oscillator Ramp
Peak
Valley
PWM COMPARATOR
fOSC1
fOSC2
ICT(C)
ICT(D)
Vrpk
Vrvly
275
300
260
−
−
800
−
215
−
645
−
3.5
−
3.0
kHz
325
325
−
kHz
−
mA
−
mA
V
−
−
Maximum Duty Cycle
POWER SWITCH CIRCUIT
DCMAX
70
75
80
%
Power Switch Circuit On−State Resistance (ID = 100 mA)
NCP1030
TJ = 25°C
TJ = 125°C
NCP1031
TJ = 25°C
TJ = 125°C
Power Switch Circuit and Startup Circuit Breakdown Voltage
(ID = 100 mA, TJ = 25°C)
Power Switch Circuit and Startup Circuit Off−State Leakage Current
(VDRAIN = 200 V, VUV = 2.0 V)
TJ = 25°C
TJ = −40 to 125°C
Switching Characteristics (VDS = 48 V, RL = 100 W)
Rise Time
Fall Time
CURRENT LIMIT AND OVER TEMPERATURE PROTECTION
RDS(on)
V(BR)DS
IDS(off)
tr
tf
−
4.1
−
6.0
−
2.1
−
3.5
200
−
−
13
−
−
−
22
−
24
W
7.0
12
3.0
6.0
V
−
mA
25
50
ns
−
−
Current Limit Threshold (TJ = 25°C)
NCP1030 (di/dt = 0.5 A/ms)
NCP1031 (di/dt = 1.0 A/ms)
ILIM
mA
350
515
680
700 1050
1360
Propagation Delay, Current Limit Threshold to Power Switch Circuit Output
tPLH
(Leading Edge Blanking plus Current Limit Delay)
ns
−
100
−
Thermal Protection (Note 4)
Shutdown Threshold (TJ Increasing)
Hysteresis
TOTAL DEVICE
°C
TSHDN
125
150
−
THYS
−
45
−
Supply Current After UV Turn−On
Power Switch Enabled
Power Switch Disabled
Non−Fault condition (VFB = 2.7 V)
Fault Condition (VFB = 2.7 V, VUV = 2.0 V)
ICC1
ICC2
ICC3
2.0
3.0
mA
4.0
−
1.5
2.0
−
0.65
1.2
2. Production testing for NCP1030DMR2 is performed at 25°C only; limits at −40°C and 125°C are guaranteed by design.
3. Oscillator frequency can be externally synchronized to the maximum frequency of the device.
4. Guaranteed by design only.
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