viper100bsp

Manufacturer Part Numberviper100bsp
DescriptionSmps Primary I.c.
ManufacturerSTMicroelectronics
viper100bsp datasheet
 
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T YPE
V
I
DSS
n
VIPer100B/BSP
400V
6 A
FEATURE
ADJUSTABLE SWITCHING FREQUENCY UP
TO 200KHZ
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
BLOCK DIAGRAM
ON/OFF
UVLO
V
DD
LOGIC
0.5 V
+
_
ERROR
AMPLIFIER
_
13 V
+
4.5 V
January 2000
VIPer100BSP
SMPS PRIMARY I.C.
R
DS(on)
1.1
10
PENTAWATT HV
PowerSO-10
DESCRIPTION
VIPer100B/100BSP, 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 (400 V / 6 A). Typical
applications cover off line power supplies with
a secondary power capability of 100 W in a US
mains lines 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.
OSC
OSCILLATOR
SECURITY
PWM
LATCH
LATCH
S
FF
Q
R1
Q
R/S
FF
S
R2 R3
OVERTEMP.
DETECTOR
0.5V
_
+
+
1.7 s
0. 5V/A
25 0 ns
_
DELAY
BLANKING
CURRENT
AMPLIFIER
COMP
VIPer100B
PRELIMINARY DATA
1
PENTAWATT HV
(022Y)
DRAIN
SOURCE
1/20

viper100bsp Summary of contents

  • Page 1

    ... V DD LOGIC 0 ERROR AMPLIFIER 4.5 V January 2000 VIPer100BSP SMPS PRIMARY I.C. R DS(on) 1.1 10 PENTAWATT HV PowerSO-10 DESCRIPTION VIPer100B/100BSP, 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 (400 A). Typical ...

  • Page 2

    VIPER100B/BSP ABSOLUTE MAXIMUM RATING Symb ol Parameter V Continuous Drain-Source Voltage ( 125 DS I Maximum Current D V Supply Voltage DD V Voltage Range Input OSC V Voltage Range Input COMP I Maximum Continuous Current ...

  • Page 3

    ... define the switching frequency. Note that despite the connection of R significant frequency change occurs for V varying from 8V to 15V. It provides also a synchronisation capability, when connected to an pin by external frequency source. VIPER100B/BSP Pow erSO -10 VIPer100BSP DD secondary regulation 3/20 ...

  • Page 4

    VIPER100B/BSP AVALANCHE CHARACTERISTICS Symb ol Parameter I Avalanche Current, Repetitive or Not-Repetitive D(a r) (pulse width limited by T max Single Pulse Avalanche Energy (ar) o (starting D(ar ) ...

  • Page 5

    ELECTRICAL CHARACTERISTICS (continued) OSCILLATOR SECTION Symb ol Parameter F Oscillator Frequency R SW Total Variation V with R (see fig. 6 and fig Oscillator Peak Voltage OSCih V Oscillator Valley Voltage OSCi l ERROR AMPLIFIER SECTION Symb ol ...

  • Page 6

    VIPER100B/BSP Figure 1: V Regulation Point DD I COMP Slope = mA/V COMPHI 0 I COMPLO V DDreg FC00150 Figure 3: Transition Time I D 10% Ipeak ...

  • Page 7

    Figure 7: Start-up Waveforms Figure 8: Overtemperature Protection Tj Ttsd Tts d-Thys t Vdd Vddo n Vddoff Id Vco mp VIPER100B/BSP SC1 019 1 7/20 ...

  • Page 8

    VIPER100B/BSP Figure 9: Oscillator VDD Rt OSC Ct 1 0.9 0.8 0.7 0.6 0 Oscillator frequency vs Rt and Ct 1,000 Ct = 1.5 nF 500 Ct = 2.7 nF 300 Ct = 4.7 nF 200 Ct = ...

  • Page 9

    Figure 10: Error Amplifier Frequency Response 60 RCOMP = + RCOMP = 270k 40 RCOMP = 82k RCOMP = 27k RCOMP = 12k 20 0 (20) 0.001 0.01 Figure 11: Error Amplifier Phase Response 200 150 100 50 0 (50) ...

  • Page 10

    VIPER100B/BSP Figure 12: Avalanche Test Circuit 2 VDD - 1 OSC + 13V COMP C1 U1 BT2 VIPer100B 47uF 12V 16V R2 1k 10/20 L1 1mH 3 DRAIN STHV102FI in parallel R1 47 GENERATOR INPUT SOURCE 5 ...

  • Page 11

    Figure 13: Off Line Power Supply With Auxiliary Supply Feedback F1 TR2 OSC 13V C5 Figure 14: Off Line Power Supply With Optocoupler Feedback F1 BR1 TR2 VDD OSC 13V ...

  • Page 12

    VIPER100B/BSP OPERATION DESCRIPTION : CURRENT MODE TOPOLOGY: The current mode control method, like the one integrated in the VIPer100B/BSPuses two control loops - an inner current control loop and an outer loop for voltage control. When the Power MOSFET output ...

  • Page 13

    V pin. As soon as DD the voltage on this pin reaches the high voltage threshold V of the UVLO logic, the ...

  • Page 14

    VIPER100B/BSP used. It mixes a high performance compensation network together with a separate high value soft start capacitor. Both soft start time and regulation loop bandwidth can be adjusted separately. If the device is intentionally shut down by putting the ...

  • Page 15

    Figure 20 shows one possible schematic to be adapted depending the specific needs. If the proposed schematic is used, the pulse duration must be kept at a low value (500ns is sufficient) for minimizing consumption. The optocoupler must ...

  • Page 16

    VIPER100B/BSP Figure 22: Recommended layout OSC 13V F rominput diod ridg e U1 VIPer100B C2 LAYOUT CONSIDERATIONS Some simple rules insure a correct running of switching power supplies. They may be classified into two ...

  • Page 17

    PENTAWATT HV (VERTICAL) MECHANICAL DATA mm DIM. MIN. TYP. A 4.30 C 1.17 D 2.40 E 0.35 F 0.60 G1 4.90 G2 7. 10.05 L 16.60 L1 14.60 L2 21.20 L3 22.20 L5 2.60 L6 15.10 ...

  • Page 18

    VIPER100B/BSP PENTAWATT HV 022Y(VERTICAL HIGH PITCH) MECHANICAL DATA mm DIM. MIN. TYP. A 4.30 C 1.17 D 2.40 E 0.35 F 0.60 G1 4.90 G2 7. 10.05 L 16.42 L1 14.60 L3 20.52 L5 2.60 L6 ...

  • Page 19

    PowerSO-10 MECHANICAL DATA mm DIM. MIN. TYP. A 3.35 A1 0.00 B 0.40 C 0.35 D 9.40 D1 7.40 e 1.27 E 9.30 E1 7.20 E2 7.20 E3 6.10 E4 5.90 F 1.25 h 0.50 H 13.80 L 1.20 q ...

  • Page 20

    ... STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics 2000 STMicroelectronics – ...