NCP1254
Table 3. MAXIMUM RATINGS TABLE
Symbol
Rating
Value
Unit
Vcc
Power Supply voltage, Vcc pin, continuous voltage
−0.3 to 35
V
Maximum voltage on low−power pins CS, FB and OPP
−0.3 to 10
V
VDRV
IOPP
Maximum voltage on drive pin
Maximum injected current into the OPP pin
−0.3 to Vcc+0.3
V
−2
mA
ISCR
RθJ−A
TJ,max
Iscr
Maximum continuous current into the Vcc pin while in latched mode
Thermal Resistance Junction−to−Air
Maximum Junction Temperature
Maximum continuous current into Vcc pin when latched
Storage Temperature Range
3
360
150
3
−60 to +150
mA
°C/W
°C
mA
°C
HBM
Human Body Model ESD Capability (All pins except HV) per JEDEC JESD22−A114F
2
kV
MM
Machine Model ESD Capability (All pins except DRV) per JEDEC JESD22−A115C
200
V
CDM
Charged−Device Model ESD Capability per JEDEC JESD22−C101E
500
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device contains latch−up protection and exceeds 100 mA per JEDEC Standard JESD78.
Table 4. 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
Pin
Min
Typ
Max
Unit
SUPPLY SECTION
VCCON
VCC(min)
VCCHYST
VZENER
ICC1
VCC increasing level at which driving pulses are authorized
VCC decreasing level at which driving pulses are stopped
Hysteresis VccON−Vcc(min)
Clamped Vcc when latched off @ ICC = 500 mA
Start−up current
5
15.8
18
20
V
5
8
8.8
9.4
V
5
6
−
−
V
5
−
7
−
V
5
−
−
15
mA
ICC2
Internal IC consumption with VFB = 3.2 V, FSW = 65 kHz and CL = 0
5
−
1.4
2.2
mA
ICC3
Internal IC consumption with VFB = 3.2 V, FSW = 65 kHz and CL = 1 nF 5
−
2.1
3.0
mA
ICC4
Internal IC consumption with VFB = 4.5 V, FSW = 130 kHz and CL = 0
5
−
1.7
2.5
mA
ICC5 Internal IC consumption with VFB = 4.5 V, FSW = 130 kHz and CL = 1 nF 5
−
3.1
4.0
mA
ICCstby
Internal IC consumption while in skip mode
(Vcc = 12 V, driving a typical 6−A/600−V MOSFET)
750
mA
ICCLATCH
Current flowing into VCC pin that keeps the controller latched:
5
mA
Tj = −40°C to 125°C
40
Rlim
DRIVE OUTPUT
SCR current−limit series resistor
5
4
kW
Tr
Output voltage rise−time @ CL = 1 nF, 10−90% of output signal
6
−
40
−
ns
Tf
Output voltage fall−time @ CL = 1 nF, 10−90% of output signal
6
−
30
−
ns
ROH
Source resistance
6
−
13
−
W
ROL
Sink resistance
6
−
6
−
W
Isource
Peak source current, VGS = 0 V (Note 2)
6
300
mA
Isink
Peak sink current, VGS = 12 V (Note 2)
6
500
mA
2. Guaranteed by design
3. See characterization table for linearity over negative bias voltage – we recommend keeping the level on pin 3 below −300 mV.
4. A 1−MW resistor is connected from pin 4 to the ground for the measurement.
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