NCP1034(2008) Ver la hoja de datos (PDF) - ON Semiconductor
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NCP1034 Datasheet PDF : 23 Pages
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NCP1034
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, these specifications apply over VCC = 12 V,
DRVVCC = VB = 12 V, −40°C < TJ < 125°C)
Parameter
Symbol
Test Condition
Min
Typ
Max
REFERENCE VOLTAGE
Feedback Voltage
Accuracy
VFB
1.25
−40°C < TJ < 125°C
−1.5
+1.5
FB Voltage Line Regulation
LREG
10 V < VCC < 18 V (Note 3)
2.0
SUPPLY CURRENT
VCC Supply Current (Stat)
DRVVCC Supply Current (Stat)
VB Supply Current (Stat)
UNDERVOLTAGE LOCKOUT
ICC(Static)
IC(Static)
IB(Static)
SS = 0 V, No Switching, RT = 10 kW,
ROCSET = 10 kW
SS = 0 V, No Switching
SS = 0 V, No Switching
2.0
3.0
0.1
0.3
0.1
0.3
VCC−Start−Threshold
VCC−Stop−Threshold
VCC−Hysteresis
DRVCC−Start−Threshold
DRVCC−Stop−Threshold
DRVCC−Hysteresis
VB−Start−Threshold
VB−Stop−Threshold
VB−Hysteresis
Undervoltage Threshold Value
Undervoltage Threshold Value
OSCILLATOR
VCC_UVLO (R)
VCC_UVLO (F)
DRVCC_UVLO (R)
DRVCC_UVLO (F)
VB_UVLO (R)
VB_UVLO (F)
UUVLO (Rising)
UUVLO (Falling)
Supply Ramping Up
Supply Ramping Down
Supply Ramping Up and Down
Supply Ramping Up
Supply Ramping Down
Supply Ramping Up and Down
Supply Ramping Up
Supply Ramping Down
Supply Ramping Up and Down
7.9
8.9
9.8
7.3
8.2
9.0
0.7
7.9
8.9
9.8
7.3
8.2
9.0
0.7
7.9
8.9
9.8
7.3
8.2
9.0
0.7
1.19 1.25 1.31
1.10 1.15 1.20
Frequency
Ramp Amplitude
Min Duty Cycle
Min Pulse Width
Max Duty Cycle
SYNC Frequency Range
FS
Vramp
Dmin
Dmin(ctrl)
Dmax
SYNC(FS)
RT = 20 kW
RT = 10 kW
(Note 3)
FB = 2 V
FS = 200 kHz, (Note 3)
FS = 400 kHz, FB = 1.2 V
20% Above Free Running
Frequency
170
200
230
320
375
430
2.0
0
200
80
500
SYNC Pulse Duration
SYNC High Level
SYNC Low Level
SYNC Input Threshold
SYNC Input Hysteresis
SYNC Input Impedance
SYNC Output Impedance
SYNC Output Pulse Width
ERROR AMPLIFIER
SYNC(pulse)
SYNC(H)
SYNC(L)
SYNC(Thre)
SYNC(Hyst)
SYNC(ZIN)
SYNC(OUT)
SYNC(Pulse Width)
(Note 3)
(Note 3)
FS = 500 kHz, (Note 3)
200
2.0
0.8
1.6
300
16
2.5
300
Input Bias Current
IFB
SS = 3 V, FB = 1 V
−0.1 −0.4
2. Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in production.
3. Guaranteed by design but not tested in production.
Unit
V
%
mV
mA
mA
mA
V
V
V
V
V
V
V
V
V
V
V
kHz
V
%
ns
%
kHz
ns
V
V
V
mV
kW
kW
ns
mA
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