VIPer22ADIP
VIPer22AS
®
LOW POWER OFF LINE SMPS PRIMARY SWITCHER
TYPICAL POWER CAPABILITY
Mains type
SO-8
DIP-8
European
(195 - 265 Vac)
12 W
20 W
US / Wide range
(85 - 265 Vac)
7W
12 W
SO-8
DIP-8
ORDER CODES
n
n
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PACKAGE
FIXED 60 KHZ SWITCHING FREQUENCY
SO-8
DIP-8
9V TO 38V WIDE RANGE VDD VOLTAGE
CURRENT MODE CONTROL
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AUXILIARY UNDERVOLTAGE LOCKOUT
WITH HYSTERESIS
SOURCE
n OVERTEMPERATURE, OVERCURRENT AND
OVERVOLTAGE PROTECTION WITH
AUTORESTART
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INTERNAL
SUPPLY
DRAIN
ON/OFF
60kHz
OSCILLATOR
REGULATOR
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-
DESCRIPTION
The VIPer22A combines a dedicated current mode
PWM controller with a high voltage Power
BLOCK DIAGRAM
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MOSFET on the same silicon chip. Typical
applications cover off line power supplies for
battery charger adapters, standby power supplies
for TV or monitors, auxiliary supplies for motor
control, etc. The internal control circuit offers the
following benefits:
– Large input voltage range on the VDD pin
accommodates changes in auxiliary supply
voltage. This feature is well adapted to battery
charger adapter configurations.
– Automatic burst mode in low load condition.
– Overvoltage protection in hiccup mode.
n HIGH VOLTAGE START UP CURRENT
O
TUBE
T&R
VIPer22AS
VIPer22AS13TR
VIPer22ADIP -
OVERTEMP.
DETECTOR
R1
S
FF
PWM
LATCH
Q
R2 R3 R4
_
VDD
+
BLANKING
8/14.5V
+
+
42V
_
S
R
FF
_
0.23 V
OVERVOLTAGE
LATCH
230 Ω
Q
1 kΩ
FB
SOURCE
September 2002
1/15
VIPer22ADIP / VIPer22AS
PIN FUNCTION
Name
Function
VDD
Power supply of the control circuits. Also provides a charging current during start up thanks to a high
voltage current source connected to the drain. For this purpose, an hysteresis comparator monitors the
VDD voltage and provides two thresholds:
- VDDon: Voltage value (typically 14.5V) at which the device starts switching and turns off the start up
current source.
- VDDoff: Voltage value (typically 8V) at which the device stops switching and turns on the start up current
source.
SOURCE
DRAIN
FB
Power MOSFET source and circuit ground reference.
Power MOSFET drain. Also used by the internal high voltage current source during start up phase for
charging the external VDD capacitor.
Feedback input. The useful voltage range extends from 0V to 1V, and defines the peak drain MOSFET
current. The current limitation, which corresponds to the maximum drain current, is obtained for a FB pin
shorted to the SOURCE pin.
CURRENT AND VOLTAGE CONVENTIONS
I DD
VDD
I FB
FB
VDD
VFB
CONNECTION DIAGRAM
SOURCE
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2/15
SOURCE
2
FB
3
VDD
4
du
SO-8
DRAIN
CONTROL
VD
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SOURCE
VIPer22A
)
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ct
1
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ID
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8
DRAIN
SOURCE
1
8
DRAIN
7
DRAIN
SOURCE
2
7
DRAIN
6
DRAIN
FB
3
6
DRAIN
5
DRAIN
VDD
4
5
DRAIN
DIP8
)
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VIPer22ADIP / VIPer22AS
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VDS(sw)
Switching Drain Source Voltage (Tj=25 ... 125°C)
(See note 1)
-0.3 ... 730
V
VDS(st)
Start Up Drain Source Voltage (Tj=25 ... 125°C)
(See note 2)
-0.3 ... 400
V
Internally limited
A
0 ... 50
V
3
mA
200
1.5
V
kV
Internally limited
°C
ID
Continuous Drain Current
VDD
Supply Voltage
IFB
Feedback Current
VESD
Electrostatic Discharge:
Machine Model (R=0Ω; C=200pF)
Charged Device Model
Tj
Junction Operating Temperature
Tc
Case Operating Temperature
-40 to 150
°C
Storage Temperature
-55 to 150
°C
Tstg
Note: 1. This parameter applies when the start up current source is off. This is the case when the VDD voltage has reached VDDon and
remains above VDDoff.
2. This parameter applies when the start up current source is on. This is the case when the VDD voltage has not yet reached VDDon
or has fallen below V DDoff.
c
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THERMAL DATA
Symbol
Parameter
Rthj-case
Thermal Resistance Junction-Pins for :
SO-8
DIP-8
Rthj-amb
Thermal Resistance Junction-Ambient for :
SO-8
DIP-8
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Max Value
Unit
25
15
°C/W
55
45
°C/W
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(See note 1)
(See note 1)
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Note: 1. When mounted on a standard single-sided FR4 board with 200 mm² of Cu (at least 35 µm thick) connected to all DRAIN pins.
ELECTRICAL CHARACTERISTICS (Tj=25°C, VDD=18V, unless otherwise specified)
POWER SECTION
Symbol
BVDSS
IDSS
Parameter
Test Conditions
Drain-Source Voltage
ID=1mA; VFB=2V
Off State Drain Current
VDS=500V; VFB=2V; Tj=125°C
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Min.
Typ.
Max.
730
Unit
V
0.1
mA
17
31
Ω
Static Drain-Source
On State Resistance
ID=0.4A
ID=0.4A; Tj=100°C
tf
Fall Time
ID=0.2A; VIN=300V
(See fig.1)
(See note 1)
100
ns
tr
Rise Time
ID=0.4A; VIN=300V
(See fig.1)
(See note 1)
50
ns
Drain Capacitance
VDS=25V
40
pF
RDSon
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Coss
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(t s)
15
Note: 1. On clamped inductive load
3/15
VIPer22ADIP / VIPer22AS
ELECTRICAL CHARACTERISTICS (Tj=25°C, VDD=18V, unless otherwise specified)
SUPPLY SECTION
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
IDDch
Start Up Charging
Current
VDS=100V; VDD=0V ...VDDon (See fig. 2)
IDDoff
Start Up Charging
Current
in Thermal Shutdown
VDD=5V; VDS=100V
Tj > TSD - THYST
IDD0
Operating Supply Current I =2mA
FB
Not Switching
IDD1
Operating Supply Current I =0.5mA; I =50mA
FB
D
Switching
DRST
Restart Duty Cycle
VDDoff
VDD Undervoltage
Shutdown Threshold
(See fig. 2 & 3)
7
8
9
VDDon
VDD Start Up Threshold
(See fig. 2 & 3)
13
14.5
16
(See fig. 2)
5.8
6.5
7.2
38
42
46
VDDhyst
VDD Threshold
Hysteresis
VDDovp
VDD Overvoltage
Threshold
-1
Unit
mA
0
mA
3
5
mA
(Note 1)
4.5
mA
(See fig. 3)
16
%
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V
V
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Note: 1. These test conditions obtained with a resistive load are leading to the maximum conduction time of the device.
e
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OSCILLATOR SECTION
Symbol
FOSC
Parameter
Test Conditions
so
Oscillator Frequency
Total Variation
VDD=VDDoff ... 35V; Tj=0 ... 100°C
PWM COMPARATOR SECTION
Symbol
(s)
Parameter
b
O
-
Test Conditions
GID
IFB to ID Current Gain
IDlim
Peak Current Limitation
IFBsd
IFB Shutdown Current
RFB
FB Pin Input Impedance
ID=0mA
td
Current Sense Delay to
Turn-Off
ID=0.4A
t
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od
VFB=0V
Min.
Typ.
Max.
Unit
54
60
66
kHz
Min.
Typ.
Max.
Unit
0.84
A
(See fig. 4)
(See fig. 4)
560
0.56
(See fig. 4)
0.9
mA
(See fig. 4)
1.2
kΩ
200
ns
Blanking Time
500
ns
Minimum Turn On Time
700
ns
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tONmin
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0.7
OVERTEMPERATURE SECTION
Symbol
Parameter
Test Conditions
TSD
Thermal Shutdown
Temperature
(See fig. 5)
THYST
Thermal Shutdown
Hysteresis
(See fig. 5)
4/15
Min.
Typ.
Max.
Unit
140
170
°C
40
°C
VIPer22ADIP / VIPer22AS
Figure 1 : Rise and Fall Time
ID
C
L
D
C
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