NCP1601A Ver la hoja de datos (PDF) - ON Semiconductor
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NCP1601A Datasheet PDF : 18 Pages
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NCP1601A, NCP1601B
ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C. For min/max values, TJ = −40°C to +125°C, VCC = 15 V,
Vcontrol = 100 nF, Ramp = 100 pF, Osc = 220 pF unless otherwise specified)
Characteristic
Pin Symbol
Min
Typ
Max Unit
OSCILLATOR
Oscillator Frequency (Osc = 220 pF to GND)
5
fosc
Internal Capacitance of the Oscillator Pin
5
Cosc(int)
Maximum Oscillator Switching Frequency
5
fosc(max)
Oscillator Discharge Current (Osc = 5.5 V)
5
Iodch
Oscillator Charge Current (Osc = 3 V)
5
Ioch
Comparator Lower Threshold (Osc = 220 pF to GND) (Note 3)
Comparator Upper Threshold (Osc = 220 pF to GND)
5
Vsync(L)
5
Vsync(H)
Synchronization Pulse Width for Detection
5
tsync(min)
Synchronization Propagation Delay
5
tsync(d)
GATE DRIVE
Gate Drive Resistor
Output High and Draw 100 mA out of Drv Pin (Isource = 100 mA)
Output Low and Insert 100 mA into Drv Pin (Isink = 100 mA)
7
ROH
ROL
Gate Drive Rise Time from 1.5 V to 13.5 V (Drv = 1 nF to GND)
7
tr
Gate Drive Fall Time from 13.5 V to 1.5 V (Drv = 1 nF to GND)
7
tf
FEEDBACK / OVERVOLTAGE PROTECTION / UNDERVOLTAGE PROTECTION
Reference Current
1
Iref
Regulation Block Ratio
1
IregL / Iref
Vcontrol Pin Internal Resistor
Maximum Control Voltage (IFB = 100 mA)
Feedback Pin Voltage (IFB = 100 mA)
2
Rcontrol
2 Vcontrol(max)
1
VFB1
Overvoltage Protection Current Ratio
1
IOVP / Iref
Overvoltage Protection Current
1
IOVP
Undervoltage Protection Current Ratio
1
IUVP / Iref
CURRENT SENSE
Current Sense Pin Offset Voltage (IS = 100 mA)
Overcurrent Protection Level
4
VS
4
IS(OCP)
Current Sense Pin Offset Voltage at Overcurrent Level
4
VS(OCP)
Zero Current Detection Level
4
IS(ZCD)
Current Sense Pin Offset Voltage at Zero Current Level
4
VS(ZCD)
Zero Current Sense Resistor (RS(ZCD) = VS(ZCD) / IS(ZCD))
4
RS(ZCD)
RAMP
Charging Current (Ramp = 0 V)
3
Ich
Maximum Power Resistance (Rpower = Vcontrol(max) / Ich)
3
Rpower
Internal Clamping of Voltage Vton
−
Vton(max)
Internal Capacitance of the Ramp Pin
3
Cramp(int)
Ramp Pin Sink Resistance (Osc = 0 V, Ramp = 1 mA sourcing)
3
Rramp
THERMAL SHUTDOWN
Thermal Shutdown Threshold (Note 4)
−
TSD
Thermal Shutdown Hysteresis
−
TH
2. Comparator lower threshold is also the synchronization threshold.
3. Guaranteed by design.
52
−
−
40
40
3.0
4.5
500
−
5
2
−
−
192
95
−
0.95
−
104
−
4
−
190
0
9
0
−
95
9.5
−
−
−
140
−
58
36
405
49
45
3.5
5
−
371
11.6
7.2
53
32
203
96
300
1.05
3
107
217
8
4
203
3.2
14
7.5
0.536
100
10.5
3.9
20
71.5
−
45
64
kHz
−
pF
−
kHz
60
mA
60
mA
4.0
V
5.5
V
−
ns
−
ns
20
W
18
W
−
ns
−
ns
208
mA
97
%
−
kW
1.15
V
−
V
−
%
225
mA
15
%
−
mV
210
mA
20
mV
19
mA
20
mV
1
kW
105
mA
11.5
kW
−
V
−
pF
−
W
−
°C
−
°C
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