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VIPER26HD 数据表(PDF) 7 Page - STMicroelectronics

部件名 VIPER26HD
功能描述  Fixed frequency VIPerTM plus family
PDF  25 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

VIPER26HD 数据表(HTML) 7 Page - STMicroelectronics

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VIPER26
Electrical data
Doc ID 17736 Rev 2
7/25
Table 8.
Controller section
Symbol
Parameter
Test condition
Min Typ Max
Unit
Error amplifier
VREF_FB
FB reference voltage
3.2
3.3
3.4
V
IFB_PULL UP Current pull up
-1
µA
GM
Trans conductance
2
mA/V
Current setting (LIM) pin
VLIM_LOW
Low level clamp voltage
ILIM = -100 µA0.5
V
Compensation (COMP) pin
VCOMPH
Upper saturation limit
TJ = 25 °C
3
V
VCOMPL
Burst mode threshold
TJ = 25 °C
1
1.1
1.2
V
VCOMPL_HYS Burst mode hysteresis
TJ = 25 °C
40
mV
HCOMP
∆VCOMP / ∆IDRAIN
3V/A
RCOMP(DYN) Dynamic resistance
VFB = GND
15
k
Ω
ICOMP
Source / sink current
VFB > 100 mV
150
µA
Max source current
VCOMP = GND, VFB = GND
220
µA
Current limitation
IDlim
Drain current limitation
ILIM = -10 µA, VCOMP = 3.3 V, TJ = 25 °C 0.66 0.7 0.74
A
tSS
Soft-start time
8.5
ms
TON_MIN
Minimum turn ON time
480
ns
IDlim_bm
Burst mode current limitation
VCOMP = VCOMPL
145
mA
Overload
tOVL
Overload time
50
ms
tRESTART
Restart time after fault
1
s
Oscillator section
FOSC
Switching frequency
VIPER26L
54
60
66
kHz
VIPER26H
103 115
127
kHz
FD
Modulation depth
FOSC = 60 kHz
±4
kHz
FOSC = 115 kHz
±8
kHz
FM
Modulation frequency
230
Hz
DMAX
Maximum duty cycle
70
80
%
Thermal shutdown
TSD
Thermal shutdown temperature
150 160
°C
THYST
Thermal shutdown hysteresis
30
°C



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