NCP1077(2014) データシートの表示（PDF） - ON Semiconductor
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NCP1077 Datasheet PDF : 28 Pages
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NCP1070, NCP1071, NCP1072, NCP1075, NCP1076, NCP1077
ELECTRICAL CHARACTERISTICS
(For typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C, VCC = 8 V unless otherwise noted)
Symbol
Rating
Pin
Min
Typ
Max
Unit
RAMP COMPENSATION
Sa(65)
The internal ramp compensation @ 65 kHz
NCP1070
NCP1071
NCP1072
NCP1075
NCP1076
NCP1077
mA/ms
−
−
7
−
−
10
−
−
4.2
−
−
7.5
−
−
15
−
−
18
−
Sa(100)
The internal ramp compensation @ 100 kHz
NCP1070
NCP1071
NCP1072
NCP1075
NCP1076
NCP1077
mA/ms
−
−
11
−
−
15
−
−
6.5
−
−
11.5
−
−
23
−
−
28
−
Sa(130)
The internal ramp compensation @ 130 kHz
NCP1070 (Note 4)
NCP1071 (Note 4)
NCP1072 (Note 4)
NCP1075
NCP1076 (Note 4)
NCP1077 (Note 4)
−
−
14
−
−
20
−
−
8.4
−
−
15
−
−
30
−
−
36
−
PROTECTIONS
tSCP
trecovery
IOVP
Fault validation further to error flag assertion
OFF phase in fault mode
VCC clamp current at which the switcher stops pulsing
NCP1070/71
NCP1072/75/76/77
−
40
53
−
ms
−
−
420
−
ms
mA
1
6.2
8.7
11.2
6
8.5
11
tOVP
The filter of VCC OVP comparator
VHV(EN)
The drain pin voltage above which allows MOSFET operate, which is
detected after TSD, UVLO, SCP, or VCC OVP mode.
TEMPERATURE MANAGEMENT
−
−
80
−
ms
5
72
91
110
V
TSD Temperature shutdown (Guaranteed by design)
−
150
°C
Hysteresis in shutdown (Guaranteed by design)
−
50
°C
3. The final switch current is: IIPK(0) / (Vin/LP + Sa) x Vin/LP + Vin/LP x tprop, with Sa the built−in slope compensation, Vin the input voltage, LP
the primary inductor in a flyback, and tprop the propagation delay.
4. NCP1070/71/72/76/77 130 kHz on demand only.
5. Oscillator frequency is measured with disabled jittering.
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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