NCP1378 ON Semiconductor, NCP1378 Datasheet - Page 4

• Manufacturer Part Number: NCP1378
• Description: PWM Current-Mode Controller
• Manufacturer: ON Semiconductor

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4
1. Max value at T
ELECTRICAL CHARACTERISTICS
unless otherwise noted.)
SUPPLY SECTION
INTERNAL STARTUP CURRENT SOURCE (T
DRIVE OUTPUT
CURRENT COMPARATOR (Pin 5 not loaded)
OVERVOLTAGE SECTION (V
FEEDBACK SECTION (V
DEMAGNETIZATION DETECTION BLOCK
V
V
V
V
Internal IC Consumption, No Output Load on Pin 5, F
Internal IC Consumption, 1.0 nF Output Load on Pin 5, F
Internal IC Consumption, Latchoff Phase, V
High−Voltage Current Source, V
High−Voltage Current Source, V
Output Voltage Rise−Time @ CL = 1.0 nF, 10−90% of Output Signal
Output Voltage Fall−Time @ CL = 1.0 nF, 10−90% of Output Signal
Source Resistance
Sink Resistance
Input Bias Current @ 1.0 V Input Level on Pin 3
Maximum Internal Current Setpoint
Propagation Delay from Current Detection to Gate OFF State
Leading Edge Blanking Duration
Internal Current Offset Injected on the CS Pin During OFF Time
Sampling Delay After ON Time
OVP Internal Reference Level
Internal Pullup Resistor
Pin 3 to Current Setpoint Division Ratio
Internal Soft−Start
Input Threshold Voltage (Vpin 1 Decreasing)
Hysteresis (Vpin 1 Decreasing)
Input Clamp Voltage
Demag Propagation Delay
Internal Input Capacitance at Vpin 1 = 1.0 V
Internal Blanking Delay after T
CC
CC
CC
CC
High State (Ipin 1 = 3.0 mA)
Low State (Ipin 1 = −2.0 mA)
Increasing Level at which the Current Source Turns−Off
Decreasing Level at which the Current Source Turns−On
Excursion between VCC
Decreasing Level at which the Latchoff Phase Ends
j
= 0 C, please see characterization curves.
CC
= 11 V, Pin 5 loaded by 1.0 kW)
Characteristic
CC
ON
ON
CC
CC
= 11 V)
and VCC
= 7.8 V
= 0
(For typical values T
min
CC
j
= 6.0 V
u 0 C)
SW
= 60 kHz
SW
http://onsemi.com
= 60 kHz
j
= 25 C, for min/max values T
NCP1378
4
Pin
6
6
6
6
6
6
6
8
8
5
5
5
5
3
3
3
3
3
1
1
2
−
−
1
1
1
1
1
1
1
VCC
VCC
Symbol
VCC
VCC
T
T
ICC1
ICC2
ICC3
T
Iratio
T
I
T
Iskip
sample
R
VC
C
R
Rup
VC
IC1
IC2
V
Tss
Limit
V
V
blank
I
T
T
DEL
LEB
dem
OH
OL
IB
par
ref
th
H
latch
r
f
hyst
ON
min
H
L
j
= 0 C to +125 C, Max T
−0.9
Min
7.8
7.0
0.8
2.4
4.0
0.9
4.6
8.0
10
30
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
0.02
−0.7
Typ
220
110
340
200
240
8.4
7.5
5.5
1.0
1.6
4.0
4.5
1.0
4.5
5.2
3.3
1.0
8.0
40
20
20
10
20
50
20
10
10
−
j
= 150 C, V
(Note 1)
(Note 1)
Max
−0.5
160
9.0
8.2
1.3
2.0
6.0
1.1
6.3
36
20
90
12
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
CC
= 11 V
Unit
mA
mA
mA
mA
mV
mV
kW
ms
mA
mA
mA
pF
ns
ns
ns
ns
ms
ns
ms
W
W
V
V
V
V
V
V
−
−