VIPER100A-E STMicroelectronics, VIPER100A-E Datasheet - Page 14
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VIPER100A-E
Manufacturer Part Number
VIPER100A-E
Description
IC SWIT PWM SMPS CM PENTAWATT5
Manufacturer
STMicroelectronics
Series
VIPER™r
Datasheet
1.VIPER100ASPTR-E.pdf
(31 pages)
Specifications of VIPER100A-E
Output Isolation
Isolated
Frequency Range
90 ~ 200kHz
Voltage - Input
8 ~ 15 V
Voltage - Output
700V
Power (watts)
82W
Operating Temperature
25°C ~ 125°C
Package / Case
Pentawatt-5 HV (Bent and Staggered Leads)
Output Voltage
4.5 V
Output Current
600 uA
Output Power
82 W
Input Voltage
12.6 V to 13.4 V
Switching Frequency
200 KHz
Mounting Style
Through Hole
No. Of Pins
5
Ic Generic Number
100
Output Current Max
5.3A
Frequency
200kHz
Leaded Process Compatible
Yes
Output Current Min
3A
Rohs Compliant
Yes
Pwm Type
Current Mode PWM Controller
Number Of Pwm Outputs
1
On/off Pin
No
Adjustable Output
No
Switching Freq
90 TO 110kHz
Operating Supply Voltage (max)
15V
Synchronous Pin
No
Rise Time
50ns
Fall Time
100ns
Mounting
Through Hole
Pin Count
5 +Tab
Package Type
Pentawatt
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4687-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
VIPER100A-E
Manufacturer:
ST
Quantity:
101
5 Operation Description
5.5
5.6
5.7
14/31
External Clock Synchronization:
The OSC pin provides a synchronisation capability when connected to an external frequency
source.
If the proposed schematic is used, the pulse duration must be kept at a low value (500ns is
sufficient) for minimizing consumption. The optocoupler must be able to provide 20mA through
the optotransistor.
Primary Peak Current Limitation
The primary I
simple circuit shown in
the COMP pin in order to limit the primary peak current of the device to a value:
where:
The suggested value for R
Over-Temperature Protection
Over-temperature protection is based on chip temperature sensing. The minimum junction
temperature at which over-temperature cut-out occurs is 140ºC, while the typical value is
170ºC. The device is automatically restarted when the junction temperature decreases to the
restart temperature threshold that is typically 40ºC below the shutdown value
I
V
D PEAK
COMP
Figure 21
=
=
DPEAK
0.6
V
------------------------------- -
COMP
shows one possible schematic to be adapted, depending the specific needs.
R
------------------ -
H
1
ID
current and, consequently, the output power can be limited using the
R
+
–
2
R
0.5
Figure 22
2
1
+R
2
is in the range of 220K .
. The circuit based on Q1, R
1
and R
2
clamps the voltage on
VIPer100A-E/ASP-E
(see Figure 13)