NCP1336 데이터 시트보기 (PDF) - ON Semiconductor
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NCP1336
ON Semiconductor
NCP1336 Datasheet PDF : 26 Pages
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NCP1336A/B
ELECTRICAL CHARACTERISTICS
(For typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C, Max TJ = 150°C, VCC = 12 V unless otherwise noted)
Symbol
Rating
Min
Typ
Max
Unit
CURRENT COMPARATOR
OPPmax Setpoint decrease for VOPP = −300 mV (Note 5)
OPPs Setpoint decrease for OPP pin shorted to ground
TIMING CAPACITOR
35
37.5
40
%
−
0
−
%
VCTmax
ICT
Maximum voltage on Ct capacitor, VFB < VFBT
Source current (Ct pin grounded)
TJ = −5°C to +125°C
TJ = −40°C to +125°C
5
5.5
−
V
18
20
22
mA
17.42
20
22
VCTmin
Ct
Minimum voltage on Ct, discharge switch activated
Recommended timing capacitor value
−
−
90
mV
−
220
−
pF
FEEDBACK SECTION
Rpullup Internal pullup resistor
TJ = −5°C to +125°C
TJ = −40°C to +125°C
16
18
24
kW
15.5
18
24
Iratio
FB pin to current setpoint division ratio
VFBT FB pin threshold under which the Ct capacitor is clamped to VCTMAX
VH2D FB voltage where 1st valley ends and 2nd valley starts (VFB decreasing)
VH3D FB voltage where 2nd valley ends and 3rd valley starts (VFB decreasing)
VH4D FB voltage where 3rd valley ends and 4th valley starts (VFB decreasing)
VHVCOD FB voltage where 4th valley ends and VCO starts (VFB decreasing)
VHVCOI FB voltage where VCO ends and 4th valley starts (VFB increasing)
VH4I
FB voltage where 4th ends and 3rd valley starts (VFB increasing)
VH3I
FB voltage where 3rd ends and 2nd valley starts (VFB increasing)
VH2I
FB voltage where 2nd ends and 1st valley starts (VFB increasing)
PROTECTIONS
3.75
4
4.25
0.26
0.3
0.34
V
1.316 1.4 1.484
V
1.128 1.2 1.272
V
0.846 0.9 0.954
V
0.752 0.8 0.848
V
1.316 1.4 1.484
V
1.504 1.6 1.696
V
1.692 1.8 1.908
V
1.88
2
2.12
V
VOVP
Tlatchdel
Ilatch
OVP level
Delay before latch confirmation (noise immunity)
Internal source current for OTP (Note 6)
TJ = −5°C to +125°C
TJ = −40°C to +125°C
2.79
3
3.21
V
15
20
25
ms
85
93
97
mA
82
93
98
Ilatch110
VOTP
VtimFault
Internal source current for OTP @ 110°C (Note 6)
Fault detection level for OTP (Note 6)
Timer Level Completion
−
91
−
mA
0.76
0.8
0.84
V
4.65
5
5.35
V
ItimerC Timer capacitor charging current
TJ = −5°C to +125°C
TJ = −40°C to +125°C
8.5
10
11.5
mA
8.25
10
11.5
ItimerD Timer capacitor discharging current
8.5
10
11.5
mA
TimerL Timer length, Ctimer = 0.1 mF typical
−
50
−
ms
TSS Soft−start duration
−
5
−
ms
TSD Temperature shutdown
140
−
−
°C
TSDhys Temperature shutdown hysteresis
−
40
−
°C
3. Minimum value for TJ = 125°C.
4. The peak current setpoint goes down as the load decreases. It is frozen below Ipeak_VCO (Ipeak = cst)
5. If negative voltage in excess to −300 mV is applied to OPP pin, the current setpoint decrease is no longer guaranteed to be linear.
6. NTC on OTP pin with R = 8.8 kW at 110°C.
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