VIPER17HD STMicroelectronics, VIPER17HD Datasheet - Page 4
![IC OFFLINE CONV PWM OVP 16SOIC](/photos/27/76/277698/soic-16_sml.jpg)
VIPER17HD
Manufacturer Part Number
VIPER17HD
Description
IC OFFLINE CONV PWM OVP 16SOIC
Manufacturer
STMicroelectronics
Series
VIPer™ plusr
Datasheet
1.VIPER17LDTR.pdf
(31 pages)
Specifications of VIPER17HD
Output Isolation
Isolated
Frequency Range
103 ~ 127kHz
Voltage - Input
8.5 ~ 23.5 V
Voltage - Output
800V
Power (watts)
12W
Operating Temperature
-40°C ~ 150°C
Package / Case
16-SOIC (0.154", 3.90mm Width) Exposed Pad
Output Voltage
800 V
Output Power
1 W
Input Voltage
- 0.3 V
Switching Frequency
115 KHz
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
Duty Cycle (max)
80 %
Number Of Outputs
1
For Use With
497-9050 - BOARD DEMO BASED ON VIPER17HN497-9007 - BOARD EVAL BASED ON VIPER17497-8513 - BOARD EVAL VIPER17HN 6W SMPS
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
VIPER17HD
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
VIPER17HDTR
Manufacturer:
MITSUBISHI
Quantity:
2 944
Part Number:
VIPER17HDTR
Manufacturer:
ST
Quantity:
20 000
Pin settings
3
Note:
Table 3.
4/31
DIP-7
7,8
1
2
3
4
5
-
Pin N.
13...16
Pin settings
Figure 3.
The copper area for heat dissipation has to be designed under the DRAIN pins.
Pin description
SO16
1...2
10
4
5
6
7
DRAIN
CONT
Name
GND
VDD
N.A.
BR
FB
Connection diagram (top view)
This pin represents the device ground and the source of the power section.
Not available for user. It can be connected to GND (pins 1-2) or left not
connected.
Supply voltage of the control section. This pin also provides the charging current
of the external capacitor during start-up time.
Control pin. The following functions can be selected:
1. current limit set point adjustment. The internal set default value of the cycle-
by-cycle current limit can be reduced by connecting to ground an external
resistor.
2. output voltage monitoring. A voltage exceeding V
shuts the IC down reducing the device consumption. This function is strobed and
digitally filtered for high noise immunity.
Control input for duty cycle control. Internal current generator provides bias
current for loop regulation. A voltage below the threshold V
burst-mode operation. A level close to the threshold V
approaching the cycle-by-cycle over-current set point.
Brownout protection input with hysteresis. A voltage below the threshold V
shuts down (not latch) the device and lowers the power consumption. Device
operation restarts as the voltage exceeds the threshold V
It can be connected to ground when not used.
High voltage drain pin. The built-in high voltage switched start-up bias current is
drawn from this pin too. Pins connected to the metal frame to facilitate heat
dissipation.
Doc ID 14419 Rev 7
Function
OVP
FBlin
threshold (see
BRth
means that we are
FBbm
+ V
activates the
BRhyst
VIPER17
Table
.
BRth
8)