Off-Line PRC Controllers with Integrated Power MOSFET
STR-A6100 Series
Description
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.
Package½
DIP7
DIP8
Features
•
Current Mode Type Pulse Ratio Control
•
Auto Standby Function
•
•
•
•
ot
R
ec
ST om
R m
-A e
61 nd
31 ed
, S fo
TR r N
-A ew
61 D
31 es
M ign
s:
Selection Guide
•
Package
Part Number
DIP7
−
−
STR-A6131
STR-A6131M
STR-A6153E
STR-A6151
STR-A6159
STR-A6169
Yes
Yes
Yes
Yes
Yes
Yes
STR-A6151M
STR-A6159M
Not to Scale
DIP8
Yes
Yes
Yes
Yes
Yes
Yes
−
Yes
Normal Operation ------------------------------ PRC Mode
Standby ---------------------------- Burst Oscillation Mode
No Load Power Consumption < 40mW
Leading Edge Blanking Function
Auto Bias Function
Protections
Overcurrent Protection (OCP); pulse-by-pulse
Overload Protection (OLP); auto-restart
Overvoltage Protection (OVP); latched shutdown
Thermal Shutdown Protection (TSD); latched
shutdown
•
Specifications
Part Number
STR-A61××
Typical Application
BR1
VAC
Fixed
off-time
8 μs
11.5 μs
Auto bias
function
Yes
−
−
Startup
resistance
−
−
Yes*
STR-A61××M
L51
T1
D51
VOUT
(+)
C1
C5
R1
PC1
R54
R51
R55
STR-A61××E
11.5 μs
* ST pin does not need Diode.
P
D
ST
C51
D1
S
R52
C53
•
Power MOSFET Electrical Characteristics and output
power, P
OUT(1)
V
DSS
(min.)
R
DS(ON)
(max.)
P
OUT
(Open frame)
AC85
AC220V
~265V
C52 R53
8
7
5
U2
D
D
NC
ST
D2
R2
R56
(-)
C6
U1
STR-A6100
C2
D
Part Number
S/OCP VCC GND FB/OLP
1
2
3
4
DZ1
C4
R
OCP
C3
PC1
C
Y
Applications
•
White goods
•
Auxiliary SMPS
•
Low power SMPS, etc.
STR-A6131
500 V
3.95 Ω
13 W
(2)
15 W
(3)
STR-A6131M
STR-A6153E
1.9 Ω
22 W
18 W
STR-A6151
3.95 Ω
15 W
13 W
STR-A6151M
650 V
STR-A6159
6Ω
13 W
10 W
STR-A6159M
STR-A6169
800 V
19.2 Ω
8W
5W
(1)
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.
(2)
AC100V
(3)
AC120V
N
STR-A6100 - DS Rev.2.2
Oct. 06, 2016
SANKEN ELECTRIC CO.,LTD.
http://www.sanken-ele.co.jp/en/
1
STR-A6100 Series
Contents
Description ------------------------------------------------------------------------------------------------------ 1
1.
2.
3.
Absolute Maximum Ratings --------------------------------------------------------------------------- 3
Electrical Characteristics ------------------------------------------------------------------------------ 3
Performance Curves ------------------------------------------------------------------------------------ 5
3.1
Derating Curves ------------------------------------------------------------------------------- 5
3.2
MOSFET Safe Operating Area Curves --------------------------------------------------- 6
3.3
Ambient Temperature versus Power Dissipation, P
D1
Curves------------------------ 7
3.4
Internal Frame Temperature versus Power Dissipation, P
D2
Curves --------------- 7
3.5
Transient Thermal Resistance Curves ---------------------------------------------------- 8
Block Diagram------------------------------------------------------------------------------------------ 10
Pin Configuration Definitions ----------------------------------------------------------------------- 11
N
STR-A6100 - DS Rev.2.2
Oct. 06, 2016
ot
R
ec
ST om
R m
-A e
61 nd
31 ed
, S fo
TR r N
-A ew
61 D
31 es
M ign
s:
4.
5.
6.
7.
8.
9.
Operational Description ------------------------------------------------------------------------------
9.1
Startup Operation ---------------------------------------------------------------------------
9.2
Undervoltage Lockout (UVLO)-----------------------------------------------------------
9.3
Constant Output Voltage Control --------------------------------------------------------
9.4
Leading Edge Blanking Function --------------------------------------------------------
9.5
Auto Standby Function ---------------------------------------------------------------------
9.6
Auto Bias Function (STR-A61xx) --------------------------------------------------------
9.7
Overcurrent Protection Function (OCP) -----------------------------------------------
9.8
Overload Protection (OLP) ----------------------------------------------------------------
9.9
Overvoltage Protection (OVP) ------------------------------------------------------------
9.10
Thermal Shutdown Function (TSD) -----------------------------------------------------
SANKEN ELECTRIC CO.,LTD.
Typical Application------------------------------------------------------------------------------------ 12
Physical Dimensions ----------------------------------------------------------------------------------- 13
Marking Diagram-------------------------------------------------------------------------------------- 14
15
15
15
15
16
16
17
17
17
18
18
10. Design Notes -------------------------------------------------------------------------------------------- 19
10.1
External Components----------------------------------------------------------------------- 19
10.2
PCB Trace Layout and Component Placement --------------------------------------- 21
11. Pattern Layout Example ----------------------------------------------------------------------------- 23
12. Reference Design of Power Supply ----------------------------------------------------------------- 24
Important Notes ---------------------------------------------------------------------------------------------- 26
2
STR-A6100 Series
1. Absolute Maximum Ratings
•
The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC.
•
Unless otherwise specified, T
A
is 25 °C, 7 pin = 8 pin
Parameter
Symbol
Test Conditions
Pins
Rating
3.2
2.5
3.4
1.8
1.2
3.2
2.5
3.4
1.8
1.2
32
72
136
24
7
− 0.5 to 6
35
− 0.5 to 10
− 0.3 to 600
1.35
Units
Notes
A6131/31M
A6151/51M
Drain Peak Current
(1)
I
DPEAK
Single pulse
8–1
A
A6153E
A6159/59M
A6169
A6131/31M
A6151/51M
A6153E
A6159/59M
A6169
A6131/31M
A6151/51M
A6153E
A6159/59M
A6169
Maximum Switching
Current
Avalanche Energy
S/OCP Pin Voltage
VCC Pin Voltage
FB/OLP Pin Voltage
ST Pin Voltage
MOSFET Power
Dissipation
Control Part Power
Dissipation
Frame Temperature in
operation
Operating Ambient
Temperature
Storage Temperature
Junction Temperature
N
2. Electrical Characteristics
•
The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC.
(1)
(2)
Refer to Figure 3-1 SOA Temperature Derating Coefficient Curve
Maximum Switching Current is Drain current that is limited by the V
GS(th)
of internal MOSFET and the gate drive
voltage of internal control IC setting. T
A
= −20 to 125 °C
(3)
STR-A61×× : V
1-3
= 0.86 V, STR-A61××M/E : V
1-3
= 1.28 V
(4)
Refer to Figure 3-2 Avalanche Energy Derating Coefficient Curve
(5)
Single pulse, V
DD
= 99 V, L = 20 mH
(6)
Refer to Section 3.3 Ta-P
D1
curve
(7)
When embedding this hybrid IC onto the printed circuit board (cupper area in a 15 mm × 15 mm)
(8)
Refer to Section 3.4 Ta-P
D2
curve
STR-A6100 - DS Rev.2.2
Oct. 06, 2016
SANKEN ELECTRIC CO.,LTD.
3
ot
R
ec
ST om
R m
-A e
61 nd
31 ed
, S fo
TR r N
-A ew
61 D
31 es
M ign
s:
(2)
I
DMAX
(3)
8–1
A
I
LPEAK
= 2.1 A
I
LPEAK
= 2.5 A
I
LPEAK
= 3.4 A
I
LPEAK
= 1.8 A
I
LPEAK
= 1.2 A
(4)
(5)
E
AS
8–1
mJ
V
OCP
V
CC
V
FB/OLP
V
ST
P
D1
P
D2
1–3
2–3
4–3
5−3
8–1
V
V
V
V
(6)
(7)
W
(8)
V
CC
× I
CC
2–3
0.15
W
0.46
T
F
− 20 to 125
°C
A61××
A61××M
A6153E
Recommended
operation
temperature
T
F
= 115 °C (max.)
T
OP
T
stg
T
ch
―
− 20 to 125
°C
―
―
− 40 to 125
150
°C
°C
STR-A6100 Series
•
Unless otherwise specified, T
A
= 25 °C, V
CC
= 20 V, 7 pin = 8 pin
Parameter
Symbol
Test
Conditions
Pins
2−3
2−3
2−3
V
CC
= 14 V
Min.
Typ.
Max.
Units
Notes
Power Supply Startup Operation
Operation Start Voltage
Operation Stop Voltage
Circuit Current in
Operation
Circuit Current in Non
Operation
Auto Bias Threshold
Voltage
V
CC(BIAS)
－V
CC(OFF)
Startup Current
(1)
V
CC(ON)
V
CC(OFF)
I
CC(ON)
I
CC(OFF)
(1)
(2)
16
9
−
−
9.6
17.5
10
−
−
10.6
−
19.2
11
4
50
11.6
−
V
V
mA
µA
V
A61××
A61××
2−3
2−3
−
2−3
5−3
ST Pin Leakage Current
PRC Operation
Maximum OFF Time
Standby Operation
Burst Threshold Voltage
Protection Operation
Leading Edge Blanking
Time
OCP Threshold Voltage
OLP Threshold Voltage
FB/OLP Pin Source
Current in OLP Operation
FB/OLP Pin Maximum
Source Current
VCC Pin OVP Threshold
V
CC(OVP)
2−3
28.7
31.2
34.1
V
Voltage
Latched Shutdown Keep
I
CC(H)
2−3
−
−
200
μA
Current
Latched Shutdown
Release Threshold
V
CC(La.OFF)
2−3
6.6
7.3
8.0
V
Voltage
Thermal Shutdown
T
j(TSD)
−
135
−
−
°C
Operating Temperature
(1)
V
CC(BIAS)
> V
CC(OFF)
always.
(2)
STR-A61××M and STR-A6153E do not have the Auto Bias Threshold voltage because auto bias function is not
included.
N
STR-A6100 - DS Rev.2.2
Oct. 06, 2016
ot
R
ec
ST om
R m
-A e
61 nd
31 ed
, S fo
TR r N
-A ew
61 D
31 es
M ign
s:
V
CC(BIAS)
−
(2)
0.2
−
V
I
STARTUP
V
CC
= 15 V
− 1230
− 790
−
8
− 340
30
µA
µA
I
START(leak)
t
OFF(MAX)
8−3
7.3
8.7
A61××
A61××M
A6153E
A61××
A61××M
A6153E
10.5
11.5
12.5
µs
V
BURST
4−3
0.70
0.79
0.88
0.66
0.75
0.84
V
t
BW
−
200
320
480
ns
V
V
OCP(TH)
V
OLP
I
OLP
1−3
0.69
0.77
0.86
A61××
A61××M
A6153E
A61××
A61××M
A6153E
A61××
A61××M
A6153E
0.96
6.5
−35
1.13
7.2
−26
1.28
7.9
−18
4−3
V
4−3
4−3
−34.1
−388
−390
−26
−18.2
−227
−220
µA
−300
I
FB(MAX)
−300
µA
SANKEN ELECTRIC CO.,LTD.
4
STR-A6100 Series
Test
Conditions
Parameter
MOSFET
Symbol
Pins
Min.
Typ.
Max.
Units
Notes
500
Drain-to-Source
Breakdown Voltage
V
DSS
I
D
= 300 μA
−
−
−
−
−
−
−
−
300
1.9
μA
V
A6131/31M
A6151/51M
A6159/59M
A6153E
A6169
8–1
650
800
On Resistance
Switching Time
Thermal Characteristics
Thermal Resistance
(3)
θ
ch-F
is thermal resistance between channel and frame. Frame temperature (T
F
) is measured at the base of pin 3.
3. Performance Curves
3.1 Derating Curves
100
80
E
AS
Temperature Derating Coefficient (%)
Safe Operating Area
Temperature Derating Coefficient (%)
N
ot
R
ec
ST om
R m
-A e
61 nd
31 ed
, S fo
TR r N
-A ew
61 D
31 es
M ign
s:
−
R
DS(ON)
I
D
= 0.4 A
Drain Leakage Current
I
DSS
V
D
= V
DSS
8–1
−
A6153E
A6131/31M
A6151/51M
A6159/59M
A6169
8–1
−
−
−
−
−
−
3.95
6
Ω
19.2
250
t
f
V
D
= 10V
8–1
−
−
−
ns
(3)
θ
ch-F
−
−
52
°C/W
100
80
60
40
20
0
60
40
20
0
0
25
50
75
100
125
150
Channel Temperature, Tch (°C)
Figure 3-1 SOA Temperature Derating Coefficient Curve
25
50
75
100
125
150
Channel Temperature, Tch (°C)
Figure 3-2 Avalanche Energy Derating Coefficient Curve
STR-A6100 - DS Rev.2.2
Oct. 06, 2016
SANKEN ELECTRIC CO.,LTD.
5
