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STR-A6153E Datasheet, PDF (1/25 Pages) Allegro MicroSystems – Universal-Input/20 W Flyback Switching Regulator | |||
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Off-Line PRC Controllers with Integrated Power MOSFET
STR-A6100 Series
General Descriptions
The STR-A6100 series are power ICs for switching
power supplies, incorporating a MOSFET and a current
mode PRC controller IC.
PRC (Pulse Ratio Control) controls on-time with
fixed off-time.
The IC includes a startup circuit and a standby
function to achieve the low standby power. The rich set
of protection features helps to realize low component
counts, and high performance-to-cost power supply.
Package
DIP8
Not to Scale
S/OCP 1
VCC 2
GND
FB/OLP 4
8D
7D
6
5 ST
Features
ï· Current Mode Type Pulse Ratio Control
ï· Auto Standby Function
Normal Operation ------------------------------ PRC Mode
Standby ---------------------------- Burst Oscillation Mode
ï· No Load Power Consumption < 40mW
ï· Leading Edge Blanking Function
ï· Auto Bias Function
ï· Protections
Overcurrent Protection (OCP); pulse-by-pulse
Overload Protection (OLP); auto-restart
Overvoltage Protection (OVP); latched shutdown
Thermal Shutdown Protection (TSD); latched
shutdown
Typical Application Circuit
VAC
BR1
C1
T1
D51
C5
DST
R1
P
D1
C51
S
87
5
D D NC ST
C6
U1
STR-A6100
S/OCP VCC GND FB/OLP
1234
D2 R2
C2
D
L51
R54
PC1 R51
R55
R52
C52 R53
U2
R56
DZ1
ROCP
C4
C3 PC1
CY
VOUT
C53
GND
Lineup
ï· Electrical Characteristics
Products
Fixed
off-time
STR-A61ÃÃ
8 μs
STR-A61ÃÃM
11.5 μs
STR-A61ÃÃE
11.5 μs
* ST pin does not need Diode.
Auto bias
function
Yes
â
â
Startup
resistance
â
â
Yes*
ï· Power MOSFET Electrical Characteristics and output
power, POUT(1)
Products
VDSS
(min.)
RDS(ON)
(max.)
POUT
(Open frame)
AC85
AC220V ~265V
STR-A6132
2.62 Ω 16 W(2) 18 W(3)
STR-A6131
STR-A6131M
500 V
3.95 Ω
13 W(2) 15 W(3)
STR-A6153E
1.9 Ω 22 W 18 W
STR-A6151
STR-A6151M
650 V
3.95 Ω
15 W
13 W
STR-A6159
STR-A6159M
6Ω
13 W 10 W
STR-A6169
800 V 19.2 Ω 8 W
5W
(1) The EI-16 core of transformer is assumed. The output
power is based on the thermal ratings, and the peak output
power can be 120 to 140 % of the value stated here. At low
output voltage, small core and short ON Duty, the output
power may be less than the value stated here.
(2) AC100V
(3) AC120V
Applications
ï· White goods
ï· Auxiliary SMPS
ï· Low power SMPS, etc.
STR-A6100 - DS Rev.2.0
SANKEN ELECTRIC CO.,LTD.
1
Dec. 25, 2013
http://www.sanken-ele.co
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