VIPER28LDTR STMicroelectronics, VIPER28LDTR Datasheet - Page 16
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VIPER28LDTR
Manufacturer Part Number
VIPER28LDTR
Description
OFFLINE POWER SUPPLY
Manufacturer
STMicroelectronics
Series
VIPer™ plusr
Datasheet
1.VIPER28HN.pdf
(32 pages)
Specifications of VIPER28LDTR
Output Isolation
Isolated
Frequency Range
54 ~ 66kHz
Voltage - Input
8.5 V ~ 23.5 V
Voltage - Output
800V
Power (watts)
20W
Operating Temperature
-25°C ~ 125°C
Package / Case
16-SOIC (0.154", 3.90mm Width)
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Operation descriptions
16/32
Figure 19. Timing diagram: normal power-up and power-down sequences
Figure 20. Soft-start: timing diagram
V
V
I
DRAIN_START
DD(RESTART)
DDch
V
DRAIN
V
(3mA)
V
DDoff
DDon
V
V
I
DD
DD
IN
Power-on
I
DRAIN
V
V
V
FBolp
I
V
FBlin
OUT
Dlim
FB
Regulated value
t
SS
Doc ID 15028 Rev 4
(soft start)
Normal operation
T
OLP-delay
regulation is lost here
Power-off
t
t
t
V
HV startup is no more activated
IN
< V
DRAIN_START
time
time
time
time
VIPER28