VIPER17 STMicroelectronics, VIPER17 Datasheet - Page 7

• Manufacturer Part Number: VIPER17
• Description: VIPerPlus family: fixed frequancy high performance off line high voltage converter
• Manufacturer: STMicroelectronics

VIPER17
Table 8.
Feed-back pin
CONT pin
Current limitation
Oscillator section
VCONT_l
V
R
T
Symbol
V
V
FBbmhys
ON_MIN
V
FB(DYN)
I
D
F
D_BM
I
H
t
FBbm
FBolp
t
FM
I
Dlim
LEB
FD
FBlin
OSC
MAX
SS
td
FB
FB
Controller section
Overload shut down threshold
Linear dynamics upper limit
Burst mode threshold
Burst mode hysteresis
Feed-back sourced current
Dynamic resistance
ΔV
Low level clamp voltage
Max drain current limitation
Soft-start time
Minimum turn ON time
Propagation delay
Leading edge blanking
Peak drain current during burst
mode
VIPER17L
VIPER17H
Modulation depth
Modulation frequency
Maximum duty cycle
FB
/ ΔI
D
Parameter
Doc ID 14419 Rev 7
Voltage falling
Voltage rising
V
3.3 V < V
V
I
V
I
T
V
V
V
VIPER17L
VIPER17H
CONT
CONT
J
FB
FB
FB
FB
DD
FB
= 25 °C
< 3.3 V
= 0.3 V
= 4 V,
= 0.6 V
= 1 V
= operating voltage range,
= -100 μA
= -10 µA
FB
Test condition
< 4.8 V
-150 -200 -280
0.38
Min
220
103
4.5
3.2
0.4
14
54
70
4
0.45
Typ Max Unit
400
100
300
115
250
4.8
3.3
8.5
0.5
0.4
Electrical data
50
90
60
±4
±8
-3
0.42
480
127 kHz
5.2
3.4
0.6
19
66
80
9
kHz
kHz
kHz
V/A
mV
mA
ms
uA
uA
kΩ
Hz
ns
ns
ns
7/31
%
V
V
V
V
A