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PDF STR3A155 Data sheet ( Hoja de datos )
| Número de pieza | STR3A155 | |
| Descripción | Off-Line PWM Controllers | |
| Fabricantes | Sanken electric | |
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Hay una vista previa y un enlace de descarga de STR3A155 (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
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Off-Line PWM Controllers with Integrated Power MOSFET
STR3A100 Series
General Descriptions
The STR3A100 series are power ICs for switching
power supplies, incorporating a MOSFET and a current
mode PWM controller IC.
The low standby power is accomplished by the
automatic switching between the PWM operation in
normal operation and the burst-oscillation under light
load conditions. The product achieves high
cost-performance power supply systems with few
external components.
Package
DIP8
Not to Scale
Features
Low Thermal Resistance Package : 44 W(max.) in
Universal Design (open frame)
Current Mode Type PWM Control
No Load Power Consumption < 15mW
Auto Standby Function
Normal Operation ----------------------------- PWM Mode
Standby ---------------------------- Burst Oscillation Mode
Soft Start Function
Random Switching Function
Slope Compensation Function
Leading Edge Blanking Function
Bias Assist Function
Protections
・Two Types of Overcurrent Protection (OCP);
Pulse-by-Pulse, built-in compensation circuit to
minimize OCP point variation on AC input voltage
・Overload Protection (OLP); auto-restart
・Overvoltage Protection (OVP); latched shutdown or
auto-restart
・Thermal Shutdown (TSD); latched shutdown or
auto-restart
Typical Application Circuit
VAC
BR1
C1
C4
T1 D51
C5 R1
P
D1
C51
S
8 76 5
D/ST D/ST DN/SCT D/ST
U1
STR3A100
S/OCP VCC GND FB/OLP
1234
D2 R2
C2 D
L51
R54
PC1 R51
R55
R52
C52 R53
U2
R56
VOUT
C53
GND
ROCP
C3
PC1
CY
Lineup
Electrical Characteristics
Products
fOSC(AVG)
STR3A1××
67 kHz
STR3A1××D
STR3A1××HD
67 kHz
100 kHz
VDSS
(min.)
650 V
650 V
700 V
OVP
/TSD
Latched
shutdown
Auto restart
Auto restart
MOSFET ON Resistance and Output Power, POUT*
POUT
POUT
Products
RDS(ON) (Adapter)
(Open frame)
(max.)
AC230V
AC85
~265V
AC230V
AC85
~265V
fOSC(AVG) = 67 kHz
STR3A151
STR3A151D
4.0 Ω
29.5 W 19.5 W
37 W
23 W
STR3A152
STR3A152D
3.0 Ω 33 W 23.5 W 45 W 29 W
STR3A153
STR3A153D
STR3A154
1.9 Ω 37 W 27.5 W 53 W 35 W
1.4 Ω 41 W 31 W 60 W 40 W
STR3A155
STR3A155D
1.1 Ω 45 W 35 W 65 W 44 W
fOSC(AVG) = 100 kHz
STR3A161HD 4.2 Ω 25 W 20 W 36 W 24 W
STR3A162HD 3.2 Ω 28 W 23 W 40 W 28 W
STR3A163HD 2.2 Ω 32 W 25.5 W 46 W 33.5 W
* The output power is actual continues power that is measured at
50 °C ambient. The peak output power can be 120 to 140 % of
the value stated here. Core size, ON Duty, and thermal design
affect the output power. It may be less than the value stated here.
Applications
Low power AC/DC adapter
White goods
Auxiliary power supply
Other SMPS
STR3A100 - DS Rev.1.5
Nov. 20, 2014
SANKEN ELECTRIC CO.,LTD.
http://www.sanken-ele.co.jp/en/
1
1 page  
STR3A100 Series
Parameter
FB/OLP Pin Clamp Voltage
OVP Threshold Voltage
Thermal Shutdown Operating
Temperature
Symbol
Test
Conditions
VFB(CLAMP)
VCC(OVP)
Tj(TSD)
Pins
4−3
2−3
−
Min.
11.0
27.5
135
Typ.
12.8
29.5
−
Max.
14.0
31.5
−
Units
V
V
°C
Notes
MOSFET
Drain-to-Source Breakdown
Voltage
VDSS
8 – 1 650
−
−
3A15×
V 3A15×D
700 −
−
3A16×HD
Drain Leakage Current
IDSS
8–1
−
−
− 300 μA
− 4.2
3A161HD
− − 4.0
3A151 / 51D
− − 3.2
3A162HD
On Resistance
RDS(ON) IDS = 0.4A
8−1
−
−
− 3.0
3A152 / 52D
Ω
− 2.2
3A163HD
− − 1.9
3A153 / 53D
− − 1.4
3A154
− − 1.1
3A155 / 55D
Switching Time
tf
8–1 −
− 250 ns
Thermal Resistance
Channel to Frame
Channel to Case Thermal
Resistance(2)
θch-F
θch-C
− − − 16 °C/W
3A151 / 51D
−
−
−
18
/ 52 / 52D / 53
°C/W
/ 53D / 61HD
/ 62HD / 63HD
− − 17
3A154
/ 55 / 55D
(2) θch-C is thermal resistance between channel and case. Case temperature (TC) is measured at the center of the case top
surface.
STR3A100 - DS Rev.1.5
Nov. 20, 2014
SANKEN ELECTRIC CO.,LTD.
5
5 Page 
STR3A100 Series
6. Typical Application Circuit
The PCB traces D/ST pins should be as wide as possible, in order to enhance thermal dissipation.
In applications having a power supply specified such that D/ST pin has large transient surge voltages, a clamp
snubber circuit of a capacitor-resistor-diode (CRD) combination should be added on the primary winding P, or a
damper snubber circuit of a capacitor (C) or a resistor-capacitor (RC) combination should be added between the
D/ST pin and the S/OCP pin.
VAC
BR1
C1
C4
C（RC）
Damper snubber
CRD clamp snubber
T1 D51
C5 R1
P
D1
C51
S
8 76 5
D/ST D/ST DN/SCT D/ST
U1
STR3A100
S/OCP VCC GND FB/OLP
1234
D2 R2
C2 D
L51
R54
PC1 R51
R55
R52
C52 R53
U2
R56
VOUT
C53
GND
ROCP
C3
PC1
CY
Figure 6-1 Typical application circuit
STR3A100 - DS Rev.1.5
Nov. 20, 2014
SANKEN ELECTRIC CO.,LTD.
11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet STR3A155.PDF ] | |
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