VAC
C1
C6 R1
D1
D2 R2
C2
T1
D51
C51
R51
R52
U51
R54
R56
C52
D
P
S
PC1
PC1
C3
R
OCP
C
Y
BR1
R53
R55
L51
C53
C5
BR
GND
FB/OLP
S/OCP
VCC
D/ST
2
1
7
653 4
STR-W6000S
U1
R
C
C4
R
A
R
B
TC_STR-W6000S_1_R1
VOUT(+)
VOUT(-)
http://www.sanken-ele.co.jp/en/
Off-Line PWM Controllers with Integrated Power MOSFET
STR-W6000S Series
General Descriptions
The STR-W6000S 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.
Features
Current Mode Type PWM Control
Brown-In and Brown-Out function
Auto Standby Function
No Load Power Consumption < 30 mW
Operation Mode
Normal Operation ----------------------------- PWM Mode
Standby ---------------------------- Burst Oscillation Mode
Random Switching Function
Slope Compensation Function
Leading Edge Blanking Function
Bias Assist Function
Audible Noise Suppression function during Standby
mode
Protections
・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); auto-restart
・Thermal Shutdown Protection (TSD); auto-restart
Typical Application Circuit
Package
TO220F-6L
Not to Scale
Lineup
Electrical Characteristics
f
Output Power, P
* The output power is actual continues power that is measured at
= 67 kHz
OSC(AVG)
*
OUT
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
White goods
Office automation equipment
Industrial equipment
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 1
Aug. 07, 2014
STR-W6000S Series
CONTENTS
General Descriptions ----------------------------------------------------------------------- 1
1. Absolute Maximum Ratings --------------------------------------------------------- 3
2. Electrical Characteristics ------------------------------------------------------------ 4
3. Performance Curves ------------------------------------------------------------------ 5
3.1 Derating Curves --------------------------------------------------------------- 5
3.2 Ambient Temperature versus Power Dissipation Curves ------------ 6
3.3 MOSFET Safe Operating Area Curves ---------------------------------- 7
3.4 Transient Thermal Resistance Curves ----------------------------------- 8
4. Functional Block Diagram ----------------------------------------------------------- 9
5. Pin Configuration Definitions ------------------------------------------------------- 9
6. Typical Application Circuit -------------------------------------------------------- 10
7. Package Outline ----------------------------------------------------------------------- 11
8. Marking Diagram -------------------------------------------------------------------- 11
9. Operational Description ------------------------------------------------------------- 12
9.1 Startup Operation ----------------------------------------------------------- 12
9.2 Undervoltage Lockout (UVLO) ------------------------------------------- 13
9.3 Bias Assist Function --------------------------------------------------------- 13
9.4 Constant Output Voltage Control ---------------------------------------- 13
9.5 Leading Edge Blanking Function ---------------------------------------- 14
9.6 Random Switching Function ---------------------------------------------- 14
9.7 Automatic Standby Mode Function-------------------------------------- 14
9.8 Brown-In and Brown-Out Function ------------------------------------- 15
9.9 Overcurrent Protection Function (OCP) ------------------------------- 16
9.10 Overload Protection Function (OLP) ----------------------------------- 17
9.11 Overvoltage Protection (OVP) -------------------------------------------- 18
9.12 Thermal Shutdown Function (TSD) ------------------------------------- 18
10. Design Notes --------------------------------------------------------------------------- 18
10.1 External Components ------------------------------------------------------- 18
10.2 PCB Trace Layout and Component Placement ----------------------- 20
11. Pattern Layout Example ------------------------------------------------------------ 22
12. Reference Design of Power Supply ----------------------------------------------- 23
OPERATING PRECAUTIONS -------------------------------------------------------- 25
IMPORTANT NOTES ------------------------------------------------------------------- 26
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 2
Aug. 07, 2014
STR-W6000S Series
Maximum Switching
Current
(2)
Single pulse
Ta= ‒20 to 125°C
MOSFET Power
Dissipation
(5)
Control Part Power
Dissipation
Internal Frame Temperature
in Operation
Operating Ambient
Temperature
1. Absolute Maximum Ratings
The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC.
Unless otherwise specified T
= 25 °C
A
(1)
Refer to 3.3 MOSFET Safe Operating Area Curves.
(2)
The maximum switching current is the drain current determined by the drive voltage of the IC and threshold voltage
(Vth) of the MOSFET.
(3)
Refer to Figure 3-2 Avalanche Energy Derating Coefficient Curve.
(4)
Single pulse, V
(5)
Refer to 3.2 Ta-PD1curves.
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 3
Aug. 07, 2014
= 99 V, L = 20 mH
DD
STR-W6000S Series
Power Supply Startup Operation
V Circuit Current in Operation
Startup Circuit Operation
Voltage
Startup Current Biasing
Threshold Voltage
Average Switching
Frequency
Switching Frequency
Modulation Deviation
Leading Edge Blanking Time
OCP Compensation
Coefficient
OCP Threshold Voltage at
Zero ON Duty
OCP Threshold Voltage at
36% ON Duty
FB/OLP pin Oscillation Stop
Threshold Voltage
Brown-In Threshold Voltage
Brown-Out Threshold
Voltage
BR Function Disabling
Threshold
Thermal Shutdown Operating
Temperature
2. Electrical Characteristics
The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC.
Unless otherwise specified, T
= 25 °C, VCC = 18 V
A
(1)
V
CC(BIAS)
> V
CC(OFF)
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 4
Aug. 07, 2014
always.
STR-W6000S Series
Drain-to-Source Breakdown
Voltage
Channel to Frame Thermal
Resistance
(2)
Figure 3-1 SOA Temperature Derating Coefficient Curve
Figure 3-2 Avalanche Energy Derating Coefficient Curve
0
20
40
60
80
100
0 25 50 75 100 125
Safe Operating Area
Temperature Derating Coefficient (%)
Channel Temperature, Tch (°C)
0
20
40
60
80
100
25 50 75 100 125 150
E
AS
Temperature Derating Coefficient (%)
Channel Temperature, Tch (°C)
(2)
The thermal resistance between the channels of the MOSFET and the internal frame.
3. Performance Curves
3.1 Derating Curves
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 5
Aug. 07, 2014
STR-W6000S Series
0
5
10
15
20
25
30
0 25 50 75 100 125 150
Power Dissipation, P
D1
(W)
Ambient Temperature, TA(°C )
0
5
10
15
20
25
30
0 25 50 75 100 125 150
Power Dissipation, P
D1
(W)
Ambient Temperature, TA(°C )
0
5
10
15
20
25
30
0 25 50 75 100 125 150
Power Dissipation, P
D1
(W)
Ambient Temperature, TA(°C )
With infinite heatsink
PD1=25.8W
PD1=1.3W
Without heatsink
PD1_STR-W6072S_R1
0
5
10
15
20
25
30
0 25 50 75 100 125 150
Power Dissipation, P
D1
(W)
Ambient Temperature, TA(°C )
3.2 Ambient Temperature versus Power Dissipation Curves
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 6
Aug. 07, 2014
STR-W6000S Series
0.01
0.1
1
10
1 10 100 1000
Drain-to-Source Voltage (V)
0.01
0.1
1
10
100
1 10 100 1000
Drain-to-Source Voltage (V)
0.01
0.1
1
10
100
1 10 100 1000
Drain-to-Source Voltage (V)
0.01
0.1
1
10
1 10 100 1000
Drain-to-Source Voltage (V)
3.3 MOSFET Safe Operating Area Curves
When the IC is used, the safe operating area curve should be multiplied by the temperature derating coefficient
derived from Figure 3-1.
The broken line in the safe operating area curve is the drain current curve limited by on-resistance.
Unless otherwise specified, TA = 25 °C, Single pulse
SOA_STR-W6051S_R1
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 7
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STR-W6000S Series
Transient Thermal Resistance
θch-c (°C/W)
Transient Thermal Resistance
θch-c (°C/W)
Transient Thermal Resistance
θch-c (°C/W)
Transient Thermal Resistance
θch-c (°C/W)
3.4 Transient Thermal Resistance Curves
STR-W6000S - DS Rev.2.0 SANKEN ELECTRIC CO.,LTD. 8
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