SGS Thomson Microelectronics VIPER50ASP, VIPER50A, VIPER50, VIPER50SP Datasheet

VIPer50/SP



TYPE V

DSS

I

R

n

DS(on)

VI Per 5 0/ SP 620V 1.5 A 5 Ω
VI Per 5 0A /ASP 700V 1.5 A 5.7 Ω

FEATURE

■ ADJUSTABLESWITCHING FREQUENCY UP

TO200KHZ

■ CURRENT MODE CONTROL

■ SOFTSTART ANDSHUT 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-UPSUPPLY

■ AVALANCHERUGGED

■ OVERTEMPERATURE PROTECTION

■ LOW STAND-BYCURRENT

■ ADJUSTABLECURRENTLIMITATION

BLOCK DIAGRAM

VIPer50A/ASP

SMPS PRIMARY I.C.

10

PENTAWATTHV PENTAWATT HV

PowerSO-10

DESCRIPTION

VIPer50/50A make using VIPower M0
Technology combines on the same silicon chip a
state-of-the-art PWM circuit together with an
optimized high voltage avalancherugged Vertical
Power MOSFET (620Vor 700V / 1.5A).

Typical applications cover off line power supplies
with a secondary power capabilityof 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 withoutextra components.

1

(022Y)

May 1999

_

2 V/A

CURRENT

AMPLIFIER

DRAIN

SOURCE

1

9

2

0

0
C
F

OSC

ON/OFF

SECURITY

LATCH

FF

R/SSQ

OVERTEMP.

DETECTOR

1.7µs
DELAY

ERROR

AMPLIFIER_

LOGIC

0.5 V

UVLO

+
_

4.5 V

VDD

13 V

+

OSCILLATOR

PWM

LATCH

S

R1

FF

R2 R3

COMP

Q

250 ns

BLANKING

0.5V
+

+
_

1/20

VIPer50/SP - VIPer50A/ASP

ABSOLUTEMAXIMUMRATING

Symb o l Para met er Val u e Uni t

V

I

V

V

OSC

V

COMP

I

COMP

V

I

D(AR)

P

T

T

THERMALDATA

R

thj-case

R

thj-a mb.

(*) When mounted using the minimum recommended pad size on FR-4 board.

Continuous Drain- Sour ce Volta ge (Tj = 25 t o 125oC)

DS

for VIPer50/S P
for VIPer50A/ ASP

Maximum Current Inte rnally Li mited A

D

Supply Volt age 0 to 15 V

DD

Volt age Range Input 0 t o V

-0.3 to 620

-0.3 to 700

DD

Volt age Range Input 0 t o 5 V
Maximum Continuous Cur rent ±2mA
Elect r o st at ic discharge (R = 1.5 KΩ C = 100pF) 4000 V

esd

Avalanche Drain-Source Curre nt , Repetitive or N ot -Repet it ive
(T C = 100
for VIPer50/S P
for VIPer50A/ ASP

Power Dissipation at Tc = 25oC60W

tot

Junction Operatin g Temperature Int ernally Limited

j

St orage T emperature -65 to 150

stg

o

C, Pulse Width Limited by TJmax, δ <1%)

1.5
1

PENTAWATT-HV PowerSO-10(*)

Ther mal Res istan ce Junc ti on-c ase Max 1.9 1.9
Ther mal Res istan ce Ambient-case Max 60 50

o
o

o

C/W

o

C/W

V
V

V

A
A

C
C

CONNECTION DIAGRAMS (Top View)

PENTAWATTHV PENTAWATTHV (022Y) PowerSO-10

CURRENT AND VOLTAGE CONVENTIONS

IDD ID

OSC

I

OSC

DD

V

13V

OSC

V

­+

ICOMP

VCOMP

DRAINVDD

COMP SOURCE

VDS

2/20

FC00020

ORDERING NUMBERS

PENTAWATT HV PENT AWATT HV (022Y) PowerSO - 10

VIPer50

VIPer50A

VIPer50 ( 022Y)

VI Per50A (022Y)

VIPer50/SP - VIPer50A/ASP

VIP er 50SP

VIPer50ASP

PINSFUNCTIONAL DESCRIPTION
DRAINPIN:

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. The device
is able to handle an unclamped current during its
normal operation, assuring self protection against
voltage surges, PCB stray inductance, and
allowing a snubberless operation for low output
power.

SOURCEPIN:

Power MOSFET source pin. Primary side circuit
commonground connection.

VDD PIN :

This pin provides two functions:

- It corresponds to the low voltage supply of the

controlpart of the circuit. If V
the start-up current source is activated and the
output power MOSFET is switched off untilthe
V

voltage reaches 11V. During this phase,

DD

the internal current consumption is reduced,
the V

pin is sourcing a currentof about 2mA

DD

and the COMP pin is shorted to ground. After
that, the current source is shut down, and the
devicetries to start upby switchingagain.

goes below 8V,

DD

- This pin is also connected to the error

amplifier, in order to allow primary as well as
secondary regulation configurations.In case of
primary regulation, an internal 13V trimmed
reference voltage is used to maintain V
13V. For secondary regulation, a voltage
between 8.5V and 12.5V will be puton V
by transformer design, in order to stuck the
output of the transconductanceamplifier to the
high state. The COMP pin behaves as a

DD

DD

at

pin

constant current source, and can easily be
connected to the output of an optocoupler.
Note that any overvoltage due to regulation
loop failure is still detected by the error
amplifier through the V

voltage, which

DD

cannot overpass 13V. The output voltage will
be somewhathigher than the nominalone, but
still undercontrol.

COMP PIN :

This pin providestwo functions :

- It is the output of the error transconductance

amplifier, and allows for the connection of a
compensation network to provide the desired
transfer function of the regulation loop. Its
bandwidth can be easily adjusted to the
needed value with usual componentsvalue. As
stated above, secondary regulation
configurations are also implemented through
the COMPpin.

- When the COMP voltage is going below 0.5V,

the shut-downof thecircuit occurs, with a zero
duty cycle for thepower MOSFET. This feature
can be used to switchoff the converter, and is
automatically activated by the regulation loop
(whatever is the configuration) to provide a
burst mode operation in case of negligible
output power or open load condition.

OSC PIN :

An R
to 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
synchronisationcapability, when connected to an
external frequency source.

network must be connected on that pin

T-CT

to VDD,no

T

DD

3/20

VIPer50/SP - VIPer50A/ASP

AVALANCHE CHARACTERISTICS

Symb o l Para met er Max Valu e Uni t

I

D(ar)

E

ELECTRICAL CHARACTERISTICS (TJ=25oC, VDD=13 V,unless otherwise specified)
POWERSECTION

Symb o l Paramet er Test Con d it i ons Min. Typ . Max. Unit

BV

I

DSS

R

DS(on)

C

OSS

(1) OnInductive Load, Clamped.

Avalanche Current, Repetitive or Not-Repet it ive
(pulse widt h limited by T
for VIPer50/S P
for VIPer50A/ ASP (see f ig. 12)

Single Pulse Avalanche Ener g y

(ar)

(starti ng T

Drain-Source Voltage ID=1mA V

DSS

=25oC, ID=I

j

Of f - State Dra in Curr ent V

St at ic Drain Source on
Resistance

max, δ <1%)

j

) (see fig. 12)

D(ar)

COMP

for VIPer50/SP
for VIPer50A/ASP (see fig. 5)

=0V TJ=125oC

COMP

V

= 620 V for VI P er5 0/ SP

DS

= 700 V for VI P er5 0A/AS P

V

DS

ID=1A
for VIPer50/SP
for VIPer50A/ASP

=1A TJ= 100oC

I

D

1.5

1.0

30 mJ

=0V

620
700

4.0

4.6

for VIPer50/SP
for VIPer50A/ASP

t

Fall Time ID = 0.2 A Vin= 300 V (1)

f

100 ns

(see f ig. 3)

Rise Time ID=1A Vin= 300 V (1)

t

r

50 ns

(see f ig. 3)

Out put Capacitance VDS= 25 V 120 pF

1
1

5.0

5.7

9.0

10.3

A
A

V
V

mA
mA

Ω
Ω

Ω
Ω

SUPPLY SECTION

Symb o l Paramet er Test Con d it i ons Min. Typ . Max. Unit

4/20

I

DDch

I

DD0

I

DD1

I

DD2

V

DDo f f

V

DDo n

V

DDhyst

St art - u p Charging
Current

Oper at i ng Supply Current VDD=12V, FSW=0KHz

VDD=5V VDS=70V
(see fig. 2 and fig . 15)

-2 mA

12 16 mA

(see f ig. 2)

Oper at i ng Supply Current VDD=12V, FSW= 100 KHz 14 mA
Oper at i ng Supply Current VDD=12V, FSW= 200 KHz 16 mA
Undervoltage S hutdown (see fig. 2) 8 V
Undervoltage Reset (see fig. 2) 11 12 V
Hysteresis Start-up (see f ig. 2) 2.4 3 V

VIPer50/SP - VIPer50A/ASP

ELECTRICAL CHARACTERISTICS (continued)
OSCILLATORSECTION

Symb o l Paramet er Test Con d it i ons Min. Typ . Max. Unit

F

Os cillator Frequen cy

SW

Total Variation

RT= 8.2 K

= 9 to15 V

V

DD

with R

± 1% CT ± 5%

T

Ω

CT=2.4 nF

(see fig.6 and fig.9)

V

V

OSCih

OSCil

Os cillator Peak Voltage 7.1 V
Os cillator Valley Voltage 3 . 7 V

ERRORAMPLIFIERSECTION

Symbol Parameter Test Condition s Min. Typ. Max. Unit

V

DDreg

∆V

DDreg

G

A

VOL

G

V

COMPLO

V

COMPHI

I

COMPLO

I

COMPHI

VDD Regulat ion Point I

= 0 mA (s e e fig.1) 12.6 13 13.4 V

COMP

Total Variation TJ= 0 to 100oC2%
Unity Gain Bandwidt h F rom Input = VDDto Output = V

BW

COMP

COM P pin i s open (see fig. 10 )

Open Loop Voltage

COM P pin i s open (see fig. 10 ) 45 5 2 dB

Gain
DC Transconductance V

m

Out put Low Level I
Out put High L ev el I
Out put Low Current

= 2.5 V (s ee fig. 1 ) 1.1 1.5 1.9 mA/V

COMP

=-400µAVDD=14V 0.2 V

COMP

= 400 µAVDD=12V 4.5 V

COMP

V

=2.5V VDD= 14 V -600 µA

COMP

Capability
Out put High C ur rent

V

=2.5V VDD= 12 V 600 µA

COMP

Capability

90 100 110 KHz

150 KHz

PWM COMPARATORSECTION

Symbol Parameter Test Condition s Min. Typ. Max. Unit

H

V

COMPoffVCOMP

I

Dpeak

t

∆V

ID

/∆I

COMP

Dpeak

off s et I

V

= 1 to 3 V 1.4 2 2.6 V/A

COMP

=10mA 0.5 V

Dpeak

Peak Current Limitation VDD=12V COMPpinopen 1.5 2 2.7 A
Current Sense Delay

d

ID= 0. 5 A 250 ns

to turn-off

t

t

on(min)

Blanking Time 250 360 ns

b

Minimum on T ime 350 ns

SHUTDOWNAND OVERTEMPERATURESECTION

Symbol Parameter Test Condition s Min. Typ. Max. Unit

V

COMPth

t

DISsu

T

T

hyst

Restart threshold (see fig. 4) 0.5 V
Disable Set Up Time (see fig. 4 ) 1.7 5 µ s
Ther mal Shut down

tsd

(see fig. 8 ) 140 170

Tem perature
Ther mal Shut down

(see fig. 8 ) 40

Hyst eresis

o

o

C

C

5/20

VIPer50/SP - VIPer50A/ASP

Figure1:VDDRegulationPoint

COMP

I

ICOMPHI

0

ICOMPLO

VDDreg

Figure3: TransitionTime

ID

10%Ipeak

Slope =

Gm in mA/V

FC00150

Figure2: UndervoltageLockout

IDD

IDD0

DD

V

VDDhyst

V

DDoff

IDDch

Figure4: ShutDown Action

VOSC

VCOMP

t

tDISsu

VDS=70V

Fsw = 0

V

DDon

FC00170

VDD

t

VDS

VCOMPth

90%VD

ID

10%V

D

t

tf tr

FC00160

ENABLE

DISABLE

Figure5: Breakdown Voltage vs Temperature Figure6: Typical FrequencyVariation

1.15

BV

DSS

(Normalized)

1.1

1.05

0.95

1

0 20 40 60 80 100 120

Temperature (°C)

FC00180

1

(%)

0

-1

-2

-3

-4

-5
0 20 40 60 80 100 120 140

Temperature (°C)

t

t

ENABLE

FC00060

FC00190

6/20