VIPer50A-E
VIPer50ASP-E
SMPS PRIMARY I.C.
General Features
Type
VIPer50A-E/ASP-E
■
V
DSS
700V
I
n
1.5A
R
DS(on)
10
5.7
Ω
PENTAWATT HV
1
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
POWERSO-10
TM
PENTAWATT HV (022Y)
■
■
■
Description
VIPer50A-E/ASP-E, 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
(700V/ 1.5A).
Typical applications cover offline 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 ability to operate in stand-by mode
without extra components.
OSC
DRAIN
■
■
■
■
■
■
Block Diagram
ON/OFF
OSCILLATOR
SECURITY
LATCH
V
DD
PWM
LATCH
S
R1 FF Q
R2 R3
UVLO
LOGIC
R/S
FF
S
Q
OVERTEMP.
DETECTOR
0.5V
_
+ +
_
0.5 V
ERROR
_ AMPLIFIER
13 V
+
+
_
1.7
µ
s
DELAY
250 ns
BLANKING
2 V/A
CURRENT
AMPLIFIER
COMP
SOURCE
FC00291
4.5 V
September 2005
Rev 1
1/31
www.st.com
31
VIPer50A-E/ASP-E
Contents
1
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1
1.2
Maximum Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
3
Thermal Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1
3.2
3.3
3.4
3.5
Drain Pin (Integrated Power MOSFET Drain): . . . . . . . . . . . . . . . . . . . . . . . . 8
Source Pin: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
V
DD
Pin (Power Supply): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Compensation Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OSC Pin (Oscillator Frequency): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4
5
Typical Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operation Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
Current Mode Topology: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Stand-by Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
High Voltage Start-up Current Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Transconductance Error Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
External Clock Synchronization: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Primary Peak Current Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Over-Temperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Operation Pictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2/31
VIPer50A-E/ASP-E
6
Electrical Over Stress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1
Electrical Over Stress Ruggedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7
Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1
Layout Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8
9
10
Package Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Order Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3/31
1 Electrical Data
VIPer50A-E/ASP-E
1
1.1
Table 1.
Electrical Data
Maximum Rating
Absolute Maximum Rating
Parameter
Continuous Drain-Source Voltage (T
J
= 25 to 125°C)
Maximum Current
Supply Voltage
Voltage Range Input
Voltage Range Input
Maximum Continuous Current
Electrostatic Discharge (R =1.5kΩ; C=100pF)
Avalanche Drain-Source Current, Repetitive or Not Repetitive
(Tc=100°C; Pulse width limited by TJ max;
δ
< 1%)
Power Dissipation at T
c
= 25ºC
Junction Operating Temperature
Storage Temperature
Value
–0.3 to 700
Internally limited
0 to 15
0 to V
DD
0 to 5
±2
4000
1
60
Internally limited
-65 to 150
Unit
V
A
V
V
V
mA
V
A
W
°C
°C
Symbol
V
DS
I
D
V
DD
V
OSC
V
COMP
I
COMP
V
ESD
I
D(AR)
P
tot
T
j
T
stg
4/31
VIPer50A-E/ASP-E
1 Electrical Data
1.2
Electrical Characteristics
T
J
= 25°C; V
DD
= 13V, unless otherwise specified
Table 2.
Symbol
BV
DS
I
DSS
Power Section
Parameter
Drain-Source Voltage
Off-State Drain
Current
Static Drain-Source
On Resistance
Fall Time
Rise Time
Output Capacitance
Test Conditions
I
D
= 1mA; V
COMP
= 0V
V
COMP
= 0V; T
j
= 125°C
V
DS
= 700V
I
D
= 2A
I
D
= 2A; T
j
= 100°C
I
D
= 0.2A; V
IN
=300V
(1)
Figure 7
I
D
= 1A; V
IN
= 300V
(1)
Figure 7
V
DS
= 25V
100
50
120
4.6
1
5.7
10.3
mA
Ω
Min
700
Typ
Max
Unit
V
R
DS(on)
t
f
t
r
C
oss
ns
ns
pF
(1) On Inductive Load, Clamped.
Table 3.
Symbol
I
DDch
I
DD0
I
DD1
Supply Section
Parameter
Start-Up Charging Current
Test Conditions
V
DD
= 5V; V
DS
= 35V
(see Figure 6)(see Figure 11)
Operating Supply Current
V
DD
= 12V; F
SW
= 0kHz
(see Figure 6)
Operating Supply Current
V
DD
= 12V; F
sw
= 100kHz
V
DD
= 12V; F
sw
= 200kHz
14
16
7.5
8
11
2.4
3
9
12
mA
mA
V
V
V
12
16
mA
Min
Typ
-2
Max
Unit
mA
V
DDoff
V
DDon
V
DDhyst
Undervoltage Shutdown
Undervoltage Reset
Hysteresis Start-up
(see Figure 6)
(see Figure 6)
(see Figure 6)
Table 4.
Symbol
F
SW
Oscillator Section
Parameter
Oscillator Frequency Total
Variation
Test Conditions‘
R
T
=8.2KΩ; C
T
=2.4nF
V
DD
=9 to 15V;
with R
T
± 1%;
C
T
± 5%
(see Figure 10)(see Figure 14)
Min
90
Typ
100
Max
110
Unit
KHz
V
OSC
IH
V
OSC
IL
Oscillator Peak Voltage
Oscillator Valley Voltage
7.1
3.7
V
V
5/31
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