VIPER16HD STMicroelectronics, VIPER16HD Datasheet

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VIPER16HD

Manufacturer Part Number
VIPER16HD
Description
IC OFFLINE CONV PWM OTP 16-SOIC
Manufacturer
STMicroelectronics
Series
VIPer™ plusr
Datasheet

Specifications of VIPER16HD

Output Isolation
Either
Frequency Range
103 ~ 127kHz
Voltage - Input
11.5 ~ 23.5 V
Voltage - Output
800V
Power (watts)
12W
Operating Temperature
-40°C ~ 150°C
Package / Case
16-SOIC (0.154", 3.90mm Width)
Output Power
1 W
Input Voltage
3.3 V
Switching Frequency
115 KHz
Mounting Style
SMD/SMT
Duty Cycle (max)
80 %
For Use With
497-9006 - BOARD EVAL BASED ON VIPER16497-8836 - EVAL BOARD FOR VIPER16HD497-8835 - EVAL BOARD FOR VIPER16HD ISO PSU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
Application
Table 1.
August 2010
800 V avalanche rugged power section
PWM operation with frequency jittering for low
EMI
Operating frequency:
– 60 kHz for L type
– 115 kHz for H type
No need of auxiliary winding for low power
application
Standby power < 50 mW at 265 V
Limiting current with adjustable set point
On-board soft-start
Safe auto-restart after a fault condition
Hysteretic thermal shutdown
Replacement of capacitive power supply
Auxiliary power supply for appliances,
Power metering
LED drivers
VIPER16HDTR
VIPER16LDTR
Order codes
VIPER16HN
VIPER16HD
VIPER16LN
VIPER16LD
Device summary
AC
Doc ID 15232 Rev 4
SO16 narrow
Package
Fixed frequency VIPer™ plus family
DIP-7
Description
The device is an off-line converter with an 800 V
avalanche ruggedness power section, a PWM
controller, user defined overcurrent limit,
protection against feedback network
disconnection, hysteretic thermal protection, soft
start up and safe auto restart after any fault
condition. It is able to power itself directly from the
rectified mains, eliminating the need for an
auxiliary bias winding.
Advance frequency jittering reduces EMI filter
cost. Burst mode operation and the devices very
low consumption both help to meet the standard
set by energy saving regulations.
Figure 1.
SO16 narrow
SO-16
Typical buck converter application
Tape and reel
Tape and reel
Packaging
Tube
Tube
Tube
VIPER16
DIP-7
www.st.com
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VIPER16HD Summary of contents

Page 1

... Power metering ■ LED drivers Table 1. Device summary Order codes VIPER16LN VIPER16HN VIPER16HD VIPER16HDTR VIPER16LD VIPER16LDTR August 2010 Fixed frequency VIPer™ plus family SO16 narrow SO-16 Description The device is an off-line converter with an 800 V avalanche ruggedness power section, a PWM ...

Page 2

Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

VIPER16 1 Block diagram Figure 2. Block diagram 2 Typical power Table 2. Typical power Part number VIPER16 1. Typical continuous power in non ventilated enclosed adapter measured Maximum practical continuous power in an open frame design ...

Page 4

Pin settings 3 Pin settings Figure 3. Connection diagram (top view) Note: The copper area for heat dissipation has to be designed under the DRAIN pins. Table 3. Pin description Pin N. DIP-7 SO16 1 1 ...

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VIPER16 4 Electrical data 4.1 Maximum ratings Table 4. Absolute maximum ratings Pin Symbol (DIP- DRAIN DRAIN V 5 COMP LIM ...

Page 6

Electrical data 4.3 Electrical characteristics (T = -25 to 125 ° Table 6. Power section Symbol Parameter V Break-down voltage BVDSS I OFF state drain current OFF R Drain-source on state resistance DS(on) C Effective (energy related) output ...

Page 7

VIPER16 Table 8. Controller section Symbol Parameter Error amplifier V FB reference voltage REF_FB I Current pull up FB_PULL UP G Trans conductance M Current setting (LIM) pin V Low level clamp voltage LIM_LOW Compensation (COMP) pin V Upper saturation ...

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Typical electrical characteristics 5 Typical electrical characteristics Figure 4. IDlim Figure DRAIN_START Figure 8/24 Figure 5. Figure 7. J Figure 9. Doc ID 15232 Rev 4 VIPER16 ...

Page 9

VIPER16 Figure 10 COMP J Figure 12. Operating supply current (switching Figure 14. Power MOSFET on-resistance vs T Figure 11. Operating supply current Figure 13. IDlim Figure 15. Power MOSFET break down ...

Page 10

Typical electrical characteristics Figure 16. Thermal shutdown DDon V DDCSon V DDoff I DRAIN HYST Normal operation 10/24 Shut down after over temperature Doc ID 15232 Rev 4 VIPER16 ...

Page 11

VIPER16 6 Typical circuit Figure 17. Buck converter Figure 18. Buck boost converter Doc ID 15232 Rev 4 Typical circuit 11/24 ...

Page 12

Typical circuit Figure 19. Flyback converter (primary regulation) Figure 20. Flyback converter (non isolated) 12/24 Doc ID 15232 Rev 4 VIPER16 ...

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VIPER16 7 Power section The power section is implemented with an n-channel power MOSFET with a breakdown voltage of 800 V min. and a typical R allow a virtually lossless current sensing and the thermal sensor. The gate driver of ...

Page 14

Oscillator 9 Oscillator The switching frequency is internally fixed at 60 kHz (part number VIPER16LN or LD) or 115 kHz (part number VIPER16LN or LD). In both cases the switching frequency is modulated by approximately ±4 kHz (60 kHz version) ...

Page 15

VIPER16 12 FB pin and COMP pin The device can be used both in non-isolated and in isolated topology. In case of non- isolated topology, the feedback signal from the output voltage is applied directly to the FB pin as ...

Page 16

Burst mode Figure 23. COMP pin voltage versus I 13 Burst mode When the voltage V OFF state and the consumption is reduced to I page 6. As reaction at the energy delivery stop, the exceeds the ...

Page 17

VIPER16 14 Automatic auto restart after overload or short-circuit The overload protection is implemented in automatic way using the integrated up-down counter. Every cycle incremented or decremented depending if the current logic detects the limit condition or not. ...

Page 18

Open loop failure protection 15 Open loop failure protection In case the power supply is built in fly-back topology and the VIPer16 is supplied by an auxiliary winding, as shown in converter is protected against feedback loop failure or accidental ...

Page 19

VIPER16 Figure 28. FB pin connection for isolated fly-back C VDD REF R V COMP COMPL + - SW BUS Disabled from R SENSE - E/A + REF_FB + COMP C COMP Doc ID ...

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Package mechanical data 16 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available ...

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VIPER16 Figure 29. Package dimensions Doc ID 15232 Rev 4 Package mechanical data 21/24 ...

Page 22

Package mechanical data Table 10. SO16 narrow mechanical data Dim ccc Figure 30. Package dimensions 22/24 mm Min Typ 0.1 1.25 0.31 0.17 9.8 9.9 5.8 6 3.8 ...

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VIPER16 17 Revision history s Table 11. Document revision history Date 21-Jan-2009 07-Dec-2009 14-May-2010 26-Aug-2010 Revision 1 Initial release Figure 7 on page 8 2 Updated Figure 3 on page 4 3 Updated Table 3 on page Updated 4 Figure ...

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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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