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STEVAL-ISA136V1
3W, 5V output, isolated flyback converter using VIPer™ Plus VIPER06HN
Data brief
Description
The STEVAL-ISA136V1 evaluation board
implements a 5 V / 0.6 A isolated flyback 3 W
wide-range mains developed for general-purpose
applications.
The core of the application is the VIPER06HN, a
new off-line high voltage converter from the VIPer
plus family.
The IC combines a high-performance low-voltage
PWM controller chip and an 800 V, avalancherugged power MOSFET in the same package.
Features
• Universal input mains range: 85 - 265 VAC
frequency: 50 - 60 Hz
• Output voltage: 5 V / 0.6 A
• Very compact size
• Stand-by mains consumption: < 30 mW at
230 VAC
• Min active mode efficiency ηAV=66.89%
• EMI: according to EN55022-Class-B
• RoHS compliant
May 2014
The main characteristics of the board are its small
size, high efficiency and low standby
consumption. Extremely low consumption under
no-load conditions is ensured thanks to burst
mode operation, which reduces the average
switching frequency and minimizes all frequencyrelated losses.
The VIPER06HN operates at fixed frequency (115
kHz). Frequency jittering is implemented, helping
it to meet electromagnetic disturbance standards.
The device is equipped with protection features,
such as delayed overload, open-loop failure and
hysteretic thermal protection, which improve the
reliability and safety of a design.
DocID024740 Rev 2
For further information contact your local STMicroelectronics sales office.
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Schematic diagram
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STEVAL-ISA136V1
Schematic diagram
Figure 1. STEVAL-ISA136V1 circuit schematic
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Revision history
Revision history
Table 1. Document revision history
Date
Revision
Changes
19-Jul-2013
1
Initial release.
08-May-2014
2
Cover image, Figure 1 and title have been updated.
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