NCP1034 查看數據表（PDF） - ON Semiconductor
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NCP1034 Datasheet PDF : 25 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 Unit
REFERENCE VOLTAGE
Feedback Voltage
Accuracy
VFB
1.25
V
−40°C < TJ < 125°C
−1.5
+1.5
%
FB Voltage Line Regulation
SUPPLY CURRENT
LREG
10 V < VCC < 18 V (Note 3)
2.0
mV
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
mA
0.1
0.3
mA
0.1
0.3
mA
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
V
7.3
8.2
9.0
V
0.7
V
7.9
8.9
9.8
V
7.3
8.2
9.0
V
0.7
V
7.9
8.9
9.8
V
7.3
8.2
9.0
V
0.7
V
1.19 1.25 1.31
V
1.10 1.15 1.20
V
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
kHz
320
375
430
2.0
V
0
%
200
ns
80
%
500
kHz
SYNC Pulse Duration
SYNC(pulse)
200
ns
SYNC High Level
SYNC(H)
2.0
V
SYNC Low Level
SYNC(L)
0.8
V
SYNC Input Threshold
SYNC(Thre)
1.6
V
SYNC Input Hysteresis
SYNC(Hyst)
300
mV
SYNC Input Impedance
SYNC(ZIN)
(Note 3)
16
kW
SYNC Output Impedance
SYNC(OUT)
(Note 3)
2.5
kW
SYNC Output Pulse Width
SYNC(Pulse Width)
FS = 500 kHz, (Note 3)
300
ns
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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.
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