Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsPMICsPMIC - AC/DC converter, offline switcher Flyback EN, Frequency control, Soft Start Pentawatt

Table Of Contents

Rev 2

June 2005 1/24

OSC

COMP

DRAIN

SOURCE

13 V

UVLO

LOGIC

SECURITY

LATCH

PWM

LATCH

R/S

R2 R3

OSCILLATOR

OVERTEMP.

DETECTOR

ERROR

AMPLIFIER_

0.5 V +

1.7

DELAY

250 ns

BLANKING

CURRENT

AMPLIFIER

ON/OFF

0.5V

1 V/A

4.5 V

VIPer100/SP

VIPer100A/ASP

SMPS PRIMARY I.C.

Table 1. General Features

■ ADJUSTABLE SWITCHING FREQUENCY UP

TO 200 kHz

■ CURRENT MODE CONTROL

■ SOFT START AND SHUTDOWN CONTROL

■ AUTOMATIC BURST MODE OPERATION IN

STAND-BY CONDITION ABLE TO MEET

“BLUE ANGEL” NORM (<1w TOTAL POWER

CONSUMPTION)

■ INTERNALLY TRIMMED ZENER

REFERENCE

■ UNDERVOLTAGE LOCK-OUT WITH

HYSTERESIS

■ INTEGRATED START-UP SUPPLY

■ OVER-TEMPERATURE PROTECTION

■ LOW STAND-BY CURRENT

■ ADJUSTABLE CURRENT LIMITATION

Figure 1. Block Diagram

Figure 2. Package

DESCRIPTION

VIPer100™/100A, made using VIPower M0

Technology, combines on the same silicon chip a

state-of-the-art PWM circuit together with an

optimized, high voltage, Vertical Power MOSFET

(620V or 700V / 3A).

Typical applications cover offline power supplies

with a secondary power capability of 50 W in wide

range condition and 100W in single range or with

doubler configuration. It is compatible from both

primary or secondary regulation loop despite

using around 50% less components when

compared with a discrete solution. Burst mode

operation is an additional feature of this device,

offering the ability to operate in stand-by mode

without extra components.

Type

DSS

DS(on)

VIPer100/SP 620V 3 A

2.5

VIPer100A/ASP 700V 3 A

2.8

PENTAWATT HV

PENTAWATT HV (022Y)

www.st.com

Summary of content (24 pages)

PAGE 1
VIPer100/SP VIPer100A/ASP SMPS PRIMARY I.C. Table 1. Figure 2. General Features Type VDSS In RDS(on) VIPer100/SP 620V 3A 2.5 Ω VIPer100A/ASP 700V 3A 2.
PAGE 2
VIPer100/SP - VIPer100A/ASP Table 2. Absolute Maximum Rating Symbol VDS ID Parameter Value Continuous Drain-Source Voltage (TJ = 25 to 125°C) for VIPer100/SP for VIPer100A/ASP –0.3 to 620 –0.3 to 700 Maximum Current Unit V V Internally limited A 0 to 15 V VDD Supply Voltage VOSC Voltage Range Input 0 to VDD V VCOMP Voltage Range Inpu 0 to 5 V ICOMP Maximum Continuous Current ±2 mA VESD Electrostatic Discharge (R =1.
PAGE 3
VIPer100/SP - VIPer100A/ASP Table 5. Ordering Numbers PENTAWATT HV PENTAWATT HV (022Y) VIPer100 VIPer100A VIPer100 (022Y) VIPer100A (022Y) Pins Functional Description Drain Pin (Integrated Power MOSFET Drain): Integrated Power MOSFET drain pin. It provides internal bias current during start-up via an integrated high voltage current source which is switched off during normal operation.
PAGE 4
VIPer100/SP - VIPer100A/ASP Table 6. Avalance Characteristics Symbol Parameter Max Value Unit ID(AR) Avalanche Current, Repetitive or Not Repetitive (pulse width limited by TJ max; δ < 1%) for VIPer100/SP (see Figure 15) for VIPer100A/ASP (*) (see Figure 15) 2 1.4 A A E(AR) Single Pulse Avalanche Energy (starting TJ = 25ºC, ID = ID(ar)) (*) 60 mJ Electrical Chracteristics (TJ = 25°C; VDD = 13V, unless otherwise specified) Table 7.
PAGE 5
VIPer100/SP - VIPer100A/ASP Table 8. Symbol Supply Section Parameter IDDch Start-Up Charging Current IDD0 Operating Supply Current IDD1 Test Conditions‘ Min VDD = 5V; V DS = 35V Typ Max -2 (see Figure 5)(see Figure 18) VDD = 12V; FSW = 0kHz 12 (see Figure 5) Unit mA 16 mA VDD = 12V; Fsw = 100kHz 15.
PAGE 6
VIPer100/SP - VIPer100A/ASP Table 11. Symbol HID VCOMPoff IDpeak PWM Comparator Section Parameter Test Conditions‘ ΔVCOMP / ΔIDPEAK VCOMP = 1 to 3 V VCOMP Offset IDPEAK = 10mA Peak Current Limitation VDD = 12V; COMP pin open Min Typ Max Unit 0.7 1 1.3 V/A 0.5 3 4 5.3 A td Current Sense Delay to TurnID = 1A Off 250 tb Blanking Time 250 360 ns Minimum On Time 350 1200 ns Typ Max Unit ton(min) Table 12. Symbol VCOMPth Parameter Test Conditions‘ Min (see Figure 7) 0.
PAGE 7
VIPer100/SP - VIPer100A/ASP Figure 4. VDD Regulation Point ICOMP Figure 5. Undervoltage Lockout IDD Slope = Gmin mA/V ICOMPHI IDD0 VDD 0 VDDhyst ICOMPLO VDDoff VD S= 35 V Fsw = 0 VDDon VDD IDDch VDDreg FC00170 FC00150 Figure 6. Transition Time Figure 7. Shutdown Action VOSC ID t VCOMP tDISsu 10% Ipeak t VDS VCOMPth t 90% VD ID 10% VD t tf tr t FC00160 ENABLE ENABLE DISABLE FC00060 Figure 8. Breakdown Voltage vs. Temperature Figure 9. FC00190 FC00180 1.
PAGE 8
VIPer100/SP - VIPer100A/ASP Figure 10. Start-Up Waveforms Figure 11.
PAGE 9
VIPer100/SP - VIPer100A/ASP Figure 12. Oscillator For R t >1.2KΩ and C t ≥ 15nF if FSW ≤ 40KHz VDD Rt OSC 550 F = ---2.3 -------- ⋅ ⎛ 1 – ------------------- ⎞ SW R C ⎝ R – 150 ⎠ CLK t t ~360Ω t FC00050 Ct Forbidden area 880 Ct(nF) = 22nF Fsw(kHz) 15nF Forbidden area 40kHz Fsw Oscillator frequency vs Rt and Ct FC00030 1,000 Ct = 1.5 nF 500 Ct = 2.7 nF Frequency (kHz) Ct 300 Ct = 4.
PAGE 10
VIPer100/SP - VIPer100A/ASP Figure 13. Error Amplifier frequency Response FC00200 60 RCOMP = +∞ Voltage Gain (dB) RCOMP = 270k 40 RCOMP = 82k RCOMP = 27k 20 RCOMP = 12k 0 (20) 0.001 0.01 0.1 1 10 Frequency (kHz) 100 1,000 Figure 14. Error Amplifier Phase Response FC00210 200 RCOMP = +∞ 150 RCOMP = 270k Phase (°) RCOMP = 82k RCOMP = 27k 100 RCOMP = 12k 50 0 (50) 0.001 10/24 0.01 0.
PAGE 11
VIPer100/SP - VIPer100A/ASP Figure 15.
PAGE 12
VIPer100/SP - VIPer100A/ASP Figure 16. Offline Power Supply With Auxiliary Supply Feedback F1 BR1 TR2 C1 TR1 D2 AC IN L2 +Vcc D1 R9 C2 C7 C9 R1 C3 GND D3 C10 R7 C4 R2 VDD DRAIN - U1 OSC VIPer100 + 13V COMP SOURCE C5 C6 C11 R3 FC00081 Figure 17.
PAGE 13
VIPer100/SP - VIPer100A/ASP Operation Description: Current Mode Topology: The current mode control method, like the one integrated in the VIPer100/100A, uses two control loops an inner current control loop and an outer loop for voltage control. When the Power MOSFET output transistor is on, the inductor current (primary side of the transformer) is monitored with a SenseFET technique and converted into a voltage VS proportional to this current.
PAGE 14
VIPer100/SP - VIPer100A/ASP High Voltage Start-up Current Suorce An integrated high voltage current source provides a bias current from the DRAIN pin during the start-up phase. This current is partially absorbed by internal control circuits which are placed into a standby mode with reduced consumption and also provided to the external capacitor connected to the VDD pin.
PAGE 15
VIPer100/SP - VIPer100A/ASP Figure 18. Behaviour of the high voltage current source at start-up VDD 2 mA VDDon VDDoff 3 mA VDD 15 mA DRAIN 1 mA 15 mA CVDD Ref.
PAGE 16
VIPer100/SP - VIPer100A/ASP Transconductance Error Amplifier The VIPer100/100A includes a transconductance error amplifier. Transconductance Gm is the change in output current (ICOMP) versus change in input voltage (VDD).
PAGE 17
VIPer100/SP - VIPer100A/ASP 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 (see Figure 11) page 8.. Figure 19. Mixed Soft Start and Compensation Figure 20.
PAGE 18
VIPer100/SP - VIPer100A/ASP Figure 25. Input Voltage Surges Protection R1 D1 (Optional) R2 39R Auxilliary winding C1 Bulk capacitor VDD C2 22nF DRAIN OSC 13V VIPerXX0 + COMP SOURCE Electrical Over Stress Ruggedness The VIPer may be submitted to electrical over-stress, caused by violent input voltage surges or lightning. Following the Layout Considerations is sufficient to prevent catastrophic damages most of the time.
PAGE 19
VIPer100/SP - VIPer100A/ASP Figure 26. Recommended Layout T1 D1 C7 D2 To secondary filtering and load R1 VDD DRAIN - C1 OSC 13V From input diodes bridge C5 + COMP SOURCE U1 VIPerXX0 R2 C6 C2 C3 ISO1 C4 FC00500 Layout Considerations Some simple rules insure a correct running of switching power supplies.
PAGE 20
VIPer100/SP - VIPer100A/ASP Pentawatt HV Mechanical Data mm. inch Dim Min. Typ. Maw. Min. Typ. A 4.30 4.80 0.169 0.189 C 1.17 1.37 0.046 0.054 D 2.40 2.80 0.094 0.11 E 0.35 0.55 0.014 0.022 F 0.60 0.80 0.024 0.031 G1 4.91 5.21 0.193 0.205 G2 7.49 7.80 0.295 0.307 H1 9.30 9.70 0.366 0.382 H2 10.40 0.409 H3 10.05 10.40 L 15.60 17.30 6.14 0.681 L1 14.60 15.22 0.575 0.599 L2 21.20 21.85 0.835 0.860 L3 22.20 22.82 0.874 0.898 L5 2.
PAGE 21
VIPer100/SP - VIPer100A/ASP Pentawatt HV 022Y ( Vertical High Pitch ) Mechanical Data mm. inch Dim Min. Typ. Maw. Min. Typ. Max. A 4.30 4.80 0.169 0.189 C 1.17 1.37 0.046 0.054 D 2.40 2.80 0.094 0.110 E 0.35 0.55 0.014 0.022 F 0.60 0.80 0.024 0.031 G1 4.91 5.21 0.193 0.205 G2 7.49 7.80 0.295 0.307 H1 9.30 9.70 0.366 0.382 H2 10.40 0.409 H3 10.05 10.40 0.396 0.409 L 16.42 17.42 0.646 0.686 L1 14.60 15.22 0.575 0.599 L3 20.52 21.52 0.
PAGE 22
VIPer100/SP - VIPer100A/ASP Figure 27. Pentawatt HV Tube Shipment ( no suffix ) Base Q.ty 50 Bulk Q.ty 1000 Tube length ( ± 0.5 ) 532 A 18 B 33.1 C ( ± 0.1) 1 All dimensions are in mm.
PAGE 23
VIPer100/SP - VIPer100A/ASP Table 13. Revision history Date Revision Changes 02-May-2005 1 Initial release.
PAGE 24
VIPer100/SP - VIPer100A/ASP Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice.