Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsPMICsPMIC - AC/DC converter, offline switcher Flyback Frequency control, Soft Start, Sync Pentaw

May 2003 1/23

VIPer50/SP

- VIPer50A/ASP

SMPS PRIMARY I.C.

■ ADJUSTABLE SWITCHING FREQUENCY UP

TO 200 kHz

■ CURRENT MODE CONTROL

■ SOFT START AND SHUT DOWN 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

■ AVALANCHE RUGGED

■ OVERTEMPERATURE PROTECTION

■ LOW STAND-BY CURRENT

■ ADJUSTABLE CURRENT LIMITATION

DESCRIPTION

VIPer50

™/50A, made using VIPower M0

Technology, combines on the same silicon chip a

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

optimized high voltage avalanche rugged Vertical

Power MOSFET (620V or 700V / 1.5A).

Typical applications cover off line power supplies

with a secondary power capability of 25W in wide

range condition and 50W 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 possibility to operate in stand-by

mode without extra components.

TYPE V

DSS

DS(on)

VIPer50/SP 620V 1.5 A 5 Ω

VIPer50A/ASP 700V 1.5 A 5.7 Ω

BLOCK DIAGRAM

PENTAWATT HV PENTAWATT HV

PowerSO-10™

(022Y)

VDD

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

2 V/A

4.5 V

Summary of content (23 pages)

PAGE 1
VIPer50/SP - VIPer50A/ASP ® SMPS PRIMARY I.C. TYPE VIPer50/SP VIPer50A/ASP VDSS 620V 700V ■ ADJUSTABLE In 1.5 A 1.5 A RDS(on) 5Ω 5.
PAGE 2
VIPer50/SP - VIPer50A/ASP ABSOLUTE MAXIMUM RATING Symbol Parameter Continuous Drain-Source Voltage (Tj=25 to 125°C) for VIPer50/SP for VIPer50A/ASP VDS ID VDD VOSC VCOMP ICOMP Vesd ID(AR) Ptot Tj Tstg Maximum Current Supply Voltage Voltage Range Input Voltage Range Input Maximum Continuous Current Electrostatic Discharge (R =1.
PAGE 3
VIPer50/SP - VIPer50A/ASP ORDERING NUMBERS PENTAWATT HV VIPer50 VIPer50A PENTAWATT HV (022Y) VIPer50 (022Y) VIPer50A (022Y) PowerSO-10™ VIPer50SP VIPer50ASP PINS FUNCTIONAL DESCRIPTION DRAIN PIN: 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
VIPer50/SP - VIPer50A/ASP AVALANCHE CHARACTERISTICS Symbol ID(AR) E(ar) Parameter Avalanche Current, Repetitive or Not Repetitive (pulse widht limited by Tj max; δ < 1%) for VIPer50/SP for VIPer50A/ASP (see fig.12) Single Pulse Avalanche Energy (starting Tj =25ºC, I D=ID(ar)) (see fig.12) Max Value Unit 1.5 A 1.
PAGE 5
VIPer50/SP - VIPer50A/ASP ELECTRICAL CHARACTERISTICS (continued) OSCILLATOR SECTION Symbol FSW VOSCih VOSCil Parameter Oscillator Frequency Total Variation Test Conditions Rt=8.2KΩ; Ct=2.4nF VDD=9 to 15V; with Rt± 1%; Ct± 5% (see fig. 6 and fig. 9) Min Typ Max Unit 90 100 110 kHz Oscillator Peak Voltage Oscillator Valley Voltage 7.1 3.7 V V ERROR AMPLIFIER SECTION Symbol VDDreg ∆VDDreg Parameter VDD Regulation Point Total Variation Test Conditions ICOMP=0mA (see fig.
PAGE 6
VIPer50/SP - VIPer50A/ASP Figure 2: Undervoltage Lockout Figure 1: VDD Regulation Point ICOMP IDD Slope = Gm in mA/V ICOMPHI IDD0 VDD 0 VDDhyst ICOMPLO VDDoff VDS= 35 V Fsw = 0 VDDon VDD IDDch VDDreg FC00150 Figure 3: Transition Time FC00170 Figure 4: Shut Down Action VOSC ID t VCOMP 10% Ipeak VDS tDISsu t t VCOMPth 90% VD ID 10% VD t tf t tr ENABLE FC00160 ENABLE DISABLE FC00060 Figure 5: Breakdown Voltage Vs. Temperature Figure 6: Typical Frequency Variation FC00180 1.
PAGE 7
VIPer50/SP - VIPer50A/ASP Figure 7: Start-Up Waveforms Figure 8: Overtemperature Protection TJ Ttsc Ttsd-Thyst t Vdd Vddon Vddoff t Id t Vcomp t SC10191 7/23
PAGE 8
VIPer50/SP - VIPer50A/ASP Figure 9: Oscillator For Rt >1.2KΩ and Ct ≥ 15nF if FSW ≤ 40KHz VDD Rt OSC 2.3 550 F SW = ------------ ⋅  1 – ---------------------- R t Ct  Rt – 150 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 ~360Ω CLK 300 Ct = 4.
PAGE 9
VIPer50/SP - VIPer50A/ASP Figure 10: 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 11: Error Amplifier Phase Response FC00210 200 RCOMP = +∞ 150 RCOMP = 270k Phase (°) RCOMP = 82k RCOMP = 27k 100 RCOMP = 12k 50 0 (50) 0.001 0.01 0.
PAGE 10
VIPer50/SP - VIPer50A/ASP Figure 12: Avalanche Test Circuit L1 1mH 2 VDD 1 3 DRAIN OSC 13V BT1 0 to 20V + COMP BT2 12V C1 47uF 16V Q1 2 x STHV102FI in parallel R1 SOURCE 5 4 47 GENERATOR INPUT 500us PULSE U1 VIPer100 R2 1k R3 100 FC00195 10/23 1
PAGE 11
VIPer50/SP - VIPer50A/ASP Figure 13: Off Line Power Supply With Auxiliary Supply Feedback F1 C1 BR1 TR2 TR1 D2 AC IN L2 +Vcc D1 R9 C2 C7 C9 R1 C3 GND D3 C10 R7 C4 R2 VDD DRAIN OSC VIPer50 + 13V COMP SOURCE C5 C6 C11 R3 FC00301 Figure 14: Off Line Power Supply With Optocoupler Feedback F1 BR1 TR2 C1 TR 1 D2 AC IN L2 +V cc D1 R9 C2 C7 C9 R1 C3 GND D3 C1 0 R7 C4 R2 V DD DR AIN O SC 13V V IP er50 + COMP C5 C 11 S O UR C E C6 R6 IS O 1 R3 R4 C8 U2 R5 F C 0 0
PAGE 12
VIPer50/SP - VIPer50A/ASP OPERATION DESCRIPTION: CURRENT MODE TOPOLOGY The current mode control method, like the one integrated in the VIPer50/50A 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 13
VIPer50/SP - VIPer50A/ASP where: IDD is the consumption current on the VDD pin when switching. Refer to specified IDD1 and IDD2 values. tSS is the start up time of the converter when the device begins to switch. Worst case is generally at full load. VDDhyst is the voltage hysteresis of the UVLO logic. Refer to the minimum specified value. Soft start feature can be implemented on the COMP pin through a simple capacitor which will also be used as the compensation network.
PAGE 14
VIPer50/SP - VIPer50A/ASP TRANSCONDUCTANCE ERROR AMPLIFIER The VIPer50/50A includes a transconductance error amplifier. Transconductance Gm is the change in output current (ICOMP) versus change in input voltage (VDD).
PAGE 15
VIPer50/SP - VIPer50A/ASP COMP pin in order to limit the primary peak current of the device to a value: – 0.5 V COMP IDPEAK = ------------------------------------H ID where: R1 + R2 V COMP = 0.6 × ---------------------R2 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.
PAGE 16
VIPer50/SP - VIPer50A/ASP Figure 22: 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.
PAGE 17
VIPer50/SP - VIPer50A/ASP Figure 23: Recommended Layout T1 D1 C7 D2 R1 2 3 VDD C1 7R VHFRQGDU\ ILOWHULQJ DQG ORDG DRAIN - 1 OSC 13V )URP LQSXW C5 + COMP GLRGHV EULGJH SOURCE 5 U1 VIPerXX0 R2 4 C6 C2 C3 ISO1 C4 FC00500 LAYOUT CONSIDERATIONS Some simple rules insure a correct running of switching power supplies.
PAGE 18
VIPer50/SP - VIPer50A/ASP PowerSO-10™ MECHANICAL DATA mm. DIM. MIN. A A (*) A1 B B (*) C C (*) D D1 E E2 E2 (*) E4 E4 (*) e F F (*) H H (*) h L L (*) α α (*) inch TYP 3.35 3.4 0.00 0.40 0.37 0.35 0.23 9.40 7.40 9.30 7.20 7.30 5.90 5.90 MAX. MIN. 3.65 3.6 0.10 0.60 0.53 0.55 0.32 9.60 7.60 9.50 7.60 7.50 6.10 6.30 0.132 0.134 0.000 0.016 0.014 0.013 0.009 0.370 0.291 0.366 0.283 0.287 0.232 0.232 1.35 1.40 14.40 14.35 0.049 0.047 0.543 0.545 1.80 1.10 8º 8º 0.047 0.031 0º 2º TYP. MAX. 0.
PAGE 19
VIPer50/SP - VIPer50A/ASP PENTAWATT HV MECHANICAL DATA DIM. mm. MIN. TYP inch MAX. 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 0.11 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 H2 0.382 10.40 10.05 H3 0.409 10.40 0.396 0.409 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.
PAGE 20
VIPer50/SP - VIPer50A/ASP PENTAWATT HV 022Y (VERTICAL HIGH PITCH) MECHANICAL DATA DIM. mm. MIN. inch TYP MAX. 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 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 0.808 0.847 H2 10.40 0.
PAGE 21
VIPer50/SP - VIPer50A/ASP PowerSO-10™ SUGGESTED PAD LAYOUT TUBE SHIPMENT (no suffix) 14.6 - 14.9 CASABLANCA B 10.8- 11 MUAR C 6.30 C A A 0.67 - 0.73 10 9 1 9.5 2 3 B 0.54 - 0.6 All dimensions are in mm. 8 7 4 5 1.27 Base Q.ty Bulk Q.ty Tube length (± 0.5) 6 Casablanca Muar 50 50 1000 1000 532 532 A B C (± 0.1) 10.4 16.4 4.9 17.2 0.8 0.8 TAPE AND REEL SHIPMENT (suffix “13TR”) REEL DIMENSIONS Base Q.ty Bulk Q.ty A (max) B (min) C (± 0.
PAGE 22
VIPer50/SP - VIPer50A/ASP PENTAWATT HV TUBE SHIPMENT (no suffix) B C Base Q.ty Bulk Q.ty Tube length (± 0.5) A B C (± 0.1) 50 1000 532 18 33.1 1 All dimensions are in mm.
PAGE 23
VIPer50/SP - VIPer50A/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 results 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.