VIPER53DIP-E STMicroelectronics, VIPER53DIP-E Datasheet - Page 15
![IC OFFLINE SWIT PWM CM OTP 8DIP](/photos/1/39/13944/497-8-dip_sml.jpg)
VIPER53DIP-E
Manufacturer Part Number
VIPER53DIP-E
Description
IC OFFLINE SWIT PWM CM OTP 8DIP
Manufacturer
STMicroelectronics
Series
VIPER™r
Type
Pulse Width Modulator Controllerr
Datasheets
1.VIPER53SPTR-E.pdf
(36 pages)
2.VIPER53DIP-E.pdf
(7 pages)
3.VIPER53DIP-E.pdf
(24 pages)
Specifications of VIPER53DIP-E
Output Isolation
Isolated
Frequency Range
93 ~ 300kHz
Voltage - Input
8.4 ~ 19 V
Voltage - Output
620V
Power (watts)
30W
Operating Temperature
25°C ~ 125°C
Package / Case
8-DIP (0.300", 7.62mm)
Current, Supply
9 mA
Frequency, Oscillator
100 kHz
Package Type
DIP-8
Regulator Type
Switching
Resistance, Thermal, Junction To Case
20 °C/W
Temperature, Operating, Range
-40 to +150 °C
Time, Fall
100 ns
Time, Rise
50 ns
Voltage, Supply
13 V
Power Switch Family
VIPer53DIP
Input Voltage
0 to 19V
Power Switch On Resistance
900mOhm
Output Current
1.6A
Number Of Outputs
Single
Mounting
Through Hole
Supply Current
9mA
Operating Temperature (min)
-40C
Operating Temperature (max)
150C
Operating Temperature Classification
Automotive
Pin Count
8
Mounting Style
Through Hole
For Use With
497-8435 - BOARD EVAL FOR VIPER53 28W497-6458 - BOARD EVAL BASED ON VIPER53-E497-6262 - BOARD REF SGL VIPER53 90-264VAC497-5866 - EVAL BOARD 24W NEG OUT VIPER53E
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6171-5
VIPer53 - E
5
Primary regulation configuration example
Figure 18. Off line power supply with auxiliary supply feedback
The schematic on
amplifier of the device in a primary feedback configuration. The primary auxiliary winding
provides a voltage to the V
error amplifier connected to this pin. The secondary voltage has to be adjusted through the
turn ratio of the transformer between auxiliary and secondary.
The error amplifier of the VIPer53 is a transconductance type: its output is a current
proportional to the difference of voltage between the V
reference (i.e., the error voltage). As the transconductance value is set at a relatively low
value to control the overall loop gain and ensure stability, this current has to be integrated by
a capacitor (C7 in
blocks any DC current from the COMP pin and imposes a “nil” error voltage. Therefore, the
V
This results in a good load regulation, which depends only on transformer coupling and
output diodes impedance. The current mode structure takes care of all incoming voltage
changes, thus providing at the same time an excellent line regulation.
DD
AC IN
voltage is accurately regulated to 15V.
R1
F1
C1
C4
R3
C5
Figure
Figure 18
OSC
T1
VIPer73
U1
15V
18). When the steady state operation is reached, this capacitor
DD
TOVL
delivers a fixed output voltage by using the internal error
VDD
R6
1k
pin, and is automatically regulated at 15V, due to the internal
C6
D1
COMP
10nF
C11
R4
SOURCE
R5
C7
C2
DRAIN
Primary regulation configuration example
C3
DD
D2
D3
pin and the internally trimmed 15V
R2
T2
D4
C10
C8
L1
C9
15/36
DC OUT