Industrial

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Industrial Power Conversion Division
VIPer
Vertical Intelligent Power enhanced regulator
Solution for Supply Conversion
2
Agenda

• Introduction
• VIPer Main Application
• VIPer Design Support
• VIPerXXX family
• - Highlight
• Operation
• Reference Design

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Introduction
Off line primary side switch
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Introduction

Discrete Fly-back SMPS
VIPer
Primary side
Secondary side
5
Introduction
Fly-back SMPS with VIPer

VIPer
Primary side
Secondary side
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Introduction
AC - DC
VIPer12 13W
VIPer Power Range
VIPer22 Up to 20W
VIPer53 Up to 60W
VIPer50 Up to 50W
VIPer100 Up to 100W
VIPer20 Up to 20W
0 10 20 30 40 50 60 70 80 90 100
Output Power (watt)
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VIPer Family Status
() Only for /A Version
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Main Application
CONSUMER Power Supply for Set Top Box, DVD
VCR Toys and Games Monitor TV I-Pod
Low power Application
BATTERY CHARGER Battery Charger Travel Adaptor
HOME APPLIANCES Auxiliary Power Supply for
Washing Machine Dishwasher Dryer Microwave
Oven Refrigerator Induction Oven Air
Conditioning Power Metering
LIGHTING CONTROL LED Driver Auxiliary Power
Supply for Industrial HID Lamp Ballast Battery
Charger for Emergency Lighting
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VIPer Design Support
Datasheet Application Note www.st.com/viper E-
mail Support viper.support_at_st.com Fly-Back
converter Simulation Software - Full parameter
simulation - Graphic Output - Software Download
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VIPer12-E / 22-E
Vertical Intelligent Power enhanced regulator
SMPS Solutions for Battery Charger, Home
Appliances, Auxiliary Power Supply for PC, TVCs
and LCD Monitors, Low cost DVD and STB,Driver
for High Efficiency Leds
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VIPerX2 family Highlight
VIPerX2 family Monolithic Chip with PWM and HV
Vertical Power Mosfet
Features
Main Electric Parameters
- Stand-by condition able to meet BLUE ANGEL
Norm with Automatic Burst Mode Operation -
Extended Vdd range 9V-36V - Over temperature
Shutdown - Integrated Start-up Supply - Soft
start and Shut down Control - Low Stand-by
Current - Current Limitation - PWM Driver
Current Mode Control - Fixed Frequency 60 KHz -
Lead Free Package

• Breakdown Voltage 730V
• Switching Frequency 60KHz
• RDS ON 27 Ohm
• I LIM 400 mA
• Max Out Power (195-265Vac)
• VIPer12SP 8W
• VIPer22SP 12W
• VIPer12DIP 13W
• VIPer22DIP 20W
• Max Out Power (85-265Vac)
• VIPer12SP 5W
• VIPer22SP 7W
• VIPer12DIP 8W
• VIPer22DIP 12W

Package
SO-8 DIP-8
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VIPer12 / 22 Block Diagram
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VIPer12 / 22 Pin Description

• VDD
• Power supply of the control circuits. It
  provides a charging current during start up
  thanks to a high voltage current source connected
  to the drain.
• SOURCE
• Power MOSFET source and circuit ground
  reference.
• DRAIN
• Power MOSFET drain. Also used by the internal
  high voltage current source during start up phase
  for charging the external VDD capacitor.
• FB
• Feedback input. The useful voltage range extends
  from 0V to 1V, and defines the peak drain MOSFET
  current. The current limitation, which
  corresponds to the maximum drain current, is
  obtained for a FB pin shorted to the SOURCE pin.

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VIPerX2 Design Suggested Topology

• Non-isolated converters
• BUCK Single or Double Output
• BUCK BOOST Single or Double Output
• FLYBACK Not Isolated
• Isolated converters
• FLYBACK Isolated

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VIPerX2 Design Topology by
Function
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VIPerX2 Design Basic BUCK
Topologies
Vout gt 16V
9V lt Vout lt 16V
Vout lt 9V
Vddoff threshold
Vddon threshold

• The Output precision (lt10) is determined by the
  Feedback Zener Diode
• The OVP condition is provided by the Output Zener
  Diode

To have more detail have a look on AN1357
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VIPerX2 Design Basic BUCK-BOOST
Topologies
Vout lt -16V
-16V lt Vout lt -9V
-9Vlt Vout lt 0
Vddoff threshold
Vddon threshold

• The Output precision (lt10) is determine by
  Feedback Zener Diode
• The OVP condition is provided by Output Zener
  Diode

To have more detail have a look on AN1357
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VIPerX2 Design BUCK-BOOST
Topologies
Double Output Solutions
Feedback directly connected on Vout2, for tight
regulation on lower output voltage

• Double Output Buck-Boost Converter
• VIPer12A up to 2W in wide range
• VIPer22A up to 4W in wide range

-12V -5V
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VIPerX2 Design Fly Back
Topologies
Isolated Standard Configuration
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VIPerX2 Design Fly Back
Topologies
Auxiliary Supply for short circuit protection
1.Hiccup mode in short circuit 2.Dz assures
VDDgtVDDoff 3.Dz_opt limits the output voltage
in case of secondary feedback failure
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VIPer Demoboard VIPerKIT 2006
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VIPer12A in STAND-BY Application
VIPer Demoboard AN1347
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Industrial Power Conversion Division
VIPer
Vertical Intelligent Power enhanced regulator
Solution for Supply Conversion
24

VIPer53 / 53E
Vertical Intelligent Power enhanced regulator
SMPS Solutions for Set Top Box, DVDs,VCRs,
Printers, TVCs, Monitors
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VIPer53 / 53E Highlight
VIPer53 / 53E Multi Chip Approach MDMesh M03
Technology
Features
Main Electric Parameters

• Stand-by condition able to meet BLUE ANGEL
  Norm with
• - Automatic Burst Mode Operation
• - Adjustable Switching Frequency up to 300 KHz
• - Over Load Control
• - Over temperature Protection
• - Integrated Start-up Supply
• - Soft start and Shut down Control
• - Low Stand-by Current
• - Current Limitation
• - PWM Driver Current Mode Control
• - Primary Regulation or Secondary - - Loop
  Failure Protection

• Breakdown Voltage 620V
• Switching Frequency up to 300KHz
• RDS ON 1 Ohm
• I LIM 2.3 A
• Max Out Power (85-265Vac)
• DIP Package 30W
• SP Package 40W
• Max Out Power (195-265Vac)
• DIP Package 50W
• SP Package 60W

Package
PowerSO-10 DIP-8
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VIPer53 / 53E Multi Chip Approach
PWM Controller Technology MO-3
Multi Chip Approach
MDMesh Embedded Current Sense
MDMesh Rdson1.0W BVDSS620V
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VIPer53 Block Diagram
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VIPer53E Block Diagram
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VIPer53 / 53E What Difference ?

• VIPer53
• 1. Primary Regulation done by INTERNAL CIRCUITRY
• Vdd voltage 15V (Regulated by Internal Error
  Amplifier)
• The output voltage is regulated by vdd error
  voltage.
• The output voltage precision is mainly related to
  the transformer coupling.
• 2. Secondary Regulation done by EXTERNAL NETWORK
• Vdd voltage range by auxiliary winding is 9V-
  14.5V (winding accuracy is mandatory)
• The output voltage is regulated by the external
  feedback gt more precision
• VIPer53E
• Secondary Regulation done by EXTERNAL NETWORK
• Vdd voltage range by auxiliary winding is 9V- 18V
  (more flexibility on the winding accuracy)
• The output voltage is regulated by the external
  feedback gt more precision

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VIPer53 / 53E Operation
VDD pin

• About VDD pin
• - Voltage Supply for control circuit
• - External start up capacitor
• Integrated High Voltage Current Source
• - NO need of external network at start-up
  converter
• - Under-voltage Protection
• - Over-voltage Protection
• - Double start-up current value

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VIPer53 / 53E Operation
TOVL pin
Connection of an external capacitor for delaying
the overload protection, which is triggered by
over-load comparator.
DRAIN

• Features
• - Short Circuit and Over-Load Protection
• Additional Benefits
• Low Cost Transformer
• Adjustment of restart duty cycle

OSCILLATOR
PWM LATCH
S
Q
FF
R2
R4
8V
4V

125k
OVERLOAD COMPARATOR
ERROR AMPLIFIER

4.35V
VDD
4.5V
OVERVOLTAGE COMPARATOR
SOURCE
COVLgt12.510-6tSS
TOVL
COMP
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VIPer53 / 53E Burst Mode Operation

• Features
• Reduction of number of Switching Cycles according
  the Output Power
• Benefits
• Less than 0.5W of input power in STAND-BY.
• Reduction of Switching losses in low load
  condition for a Blue Angel Norm or Energy
  Star Converter
• Regulation of the output voltage with a very low
  load

stand-by consumption lt 1Watt
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VIPer53 / 53E Isolated Flyback
-28W output power -LEB
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VIPerX3 Reference Design AN1737
Primary or Secondary Mode Regulation Printer
Power Supply using VIPer53
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VIPerX3 Reference Design AN1737
Schematic for Primary Mode Regulation
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VIPerX3 Reference Design AN1737
Schematic for Secondary Mode Regulation
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VIPer XX0 / XX0A
Vertical Intelligent Power enhanced regulator
SMPS Solutions for Set Top Box, DVDs,VCRs
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VIPerXX0 Off-line Power
Supply
VIPerXX0 THE OFFLINE SMART SWITCHER
Features

• Stand-by condition able to meet BLUE ANGEL Norm
  with Automatic Burst Mode Operation
• Adjustable Switching Frequency up to 200 KHz
• Over temperature Protection
• Integrated Start-up Supply
• Soft start and Shut down Control
• Low Stand-by Current
• Adjustable Current Limitation
• PWM Driver Current Mode Control

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VIPerXX0 PIN
functionality

• VDD
• Power supply of the control circuits. It
  provides the charging current of the external
  capacitor during startup.
• SOURCE
• Power Mosfet source and circuit ground
  reference.
• DRAIN
• Power Mosfet drain. It is used by the internal
  high voltage current source during the startup
  phase, for charging the external VDD capacitor.
• COMP
• Input of the current mode structure, and output
  of the internal error amplifier. Allows the
  setting of the dynamic characteristic of the
  converter through an external passive network.
• OSC
• allows the setting of the switching frequency
  through an external Rt-Ct network.

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VIPerXX0 Reference Design AN1344
108W Power Supply Using VIPer100A
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35W Flyback Converterfor SET TOP BOX using
VIPer100A
VIPerXX0 Reference Design AN1487
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VIPer Demoboard VIPerKIT 2006
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Industrial Power Conversion Division
The End
VIPer Solution for Supply Conversion