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부품번호 | VIPer22A-E 기능 |
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기능 | Low power OFF-line SMPS primary switcher | ||
제조업체 | STMicroelectronics | ||
로고 | |||
전체 21 페이지수
VIPer22A-E
VIPer22ADIP-E, VIPer22AS-E
Low power OFF-line SMPS primary switcher
Features
■ Fixed 60 kHz switching frequency
■ 9 V to 38 V wide range VDD voltage
■ Current mode control
■ Auxiliary undervoltage lockout with hysteresis
■ High voltage start-up current source
■ Overtemperature, overcurrent and overvoltage
protection with auto-restart
Table 1. Typical power capability
Mains type
SO-8
European (195 - 265 Vac)
US / wide range (85 - 265 Vac)
12 W
7W
DIP-8
20 W
12 W
Description
The VIPer22A-E combines a dedicated current
mode PWM controller with a high voltage power
MOSFET on the same silicon chip.
Figure 1. Block diagram
SO-8
DIP-8
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.
DRAIN
REGULATOR
INTERNAL
SUPPLY
VDD
FB
_
8/14.5V +
+
42V _
ON/OFF
60kHz
OSCILLATOR
OVERTEMP.
DETECTOR
S
R1 FF Q
R2 R3 R4
PWM
LATCH
OVERVOLTAGE
R LATCH
S FF Q
BLANKING
+
_ 0.23 V
1 kΩ
230 Ω
SOURCE
November 2010
Doc ID 12050 Rev 2
1/21
www.st.com
21
Electrical characteristics
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E
2 Electrical characteristics
TJ = 25 °C, VDD = 18 V, unless otherwise specified
Table 4. Power section
Symbol
Parameter
Test conditions
BVDSS
IDSS
rDS(on)
tf
tr
Drain-source voltage
OFF state drain
current
Static drain-source
ON state resistance
Fall time
Rise time
ID = 1 mA; VFB = 2 V
VDS = 500 V; VFB = 2 V;
TJ = 125 °C
ID = 0.4 A
ID = 0.4 A; TJ = 100 °C
ID = 0.2 A; VIN = 300 V (1)
(See Figure 9 on page 13)
ID = 0.4 A; VIN = 300 V (1)
(See Figure 9 on page 13)
COSS Drain capacitance
1. On clamped inductive load
VDS = 25 V
Min Typ Max Unit
730 V
0.1 mA
15 17
31
Ω
100 ns
50 ns
40 pF
Table 5. Supply section
Symbol
Parameter
Test conditions
Min Typ Max Unit
IDDch
IDDoff
IDD0
Start-up charging
current
100 V ≤ VDS ≤ 400 V;
VDD = 0 V ...VDDon
(See Figure 10 on page 13)
Start-up charging
current in thermal
shutdown
VDD = 5 V; VDS = 100 V
TJ > TSD - THYST
Operating supply
current not switching
IFB = 2 mA
-1 mA
0 mA
3 5 mA
IDD1
Operating supply
current switching
DRST
VDDoff
Restart duty-cycle
VDD undervoltage
shutdown threshold
VDDon
VDD start-up
threshold
VDDhyst
VDD threshold
hysteresis
VDDovp
VDD overvoltage
threshold
IFB = 0.5 mA; ID = 50 mA (1)
(See Figure 11 on page 13)
(See Figure 10,
Figure 11 on page 13)
(See Figure 10,
Figure 11 on page 13))
(See Figure 10 on page 13)
4.5 mA
16 %
789V
13 14.5 16
V
5.8 6.5 7.2 V
38 42 46
V
1. These test conditions obtained with a resistive load are leading to the maximum conduction time of the
device.
4/21 Doc ID 12050 Rev 2
4페이지 VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E
4 Operations
Operations
4.1
Rectangular U-I output characteristics
Figure 4. Rectangular U-I output characteristics for battery charger
AC IN
F1
T2
C3
D4
C4
C5
ISO1
C6
R1 C2
D1
T1
C1
D2
D3
U1
FB
VDD
CONTROL
VIPerX2A
DRAIN
SOURCE
R2
D5
C7
DCOUT
C10
R5
R7
R10
U2
R3
Vcc
Vref
C8
-
+
GND
R8 TSM101
+
-
R4
C9
R6
R9
GND
A complete regulation scheme can achieve combined and accurate output characteristics.
Figure 4. presents a secondary feedback through an optocoupler driven by a TSM101. This
device offers two operational amplifiers and a voltage reference, thus allowing the regulation
of both output voltage and current. An integrated OR function performs the combination of
the two resulting error signals, leading to a dual voltage and current limitation, known as a
rectangular output characteristic. This type of power supply is especially useful for battery
chargers where the output is mainly used in current mode, in order to deliver a defined
charging rate. The accurate voltage regulation is also convenient for Li-ion batteries which
require both modes of operation.
Doc ID 12050 Rev 2
7/21
7페이지 | |||
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부품번호 | 상세설명 및 기능 | 제조사 |
VIPer22A-E | Low power OFF-line SMPS primary switcher | STMicroelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |