STR2W152D Datasheet

STR2W152D and STR2W153D
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
Features and Benefits
Description
• Current mode PWM control
• Built-in Random Switching function: reduces EMI noise,
simplifies EMI filters, and cuts cost by external part
reduction
• Built-in Slope Compensation function: avoids
subharmonic oscillation
• Built-in Leading Edge Blanking (LEB) function
• Auto Standby function:
▫ Input power, PIN < 25 mW at no load
▫ Normal load operation: PWM switching
▫ Light load operation: Standby mode (Burst oscillation)
• Soft Start function: reduces stress on internal power
MOSFET and output rectifier diode
The STR2W152D and STR2W153D are power ICs for
switching power supplies, incorporating a power MOSFET
and a current mode PWM controller IC in one package.
Including a startup circuit and a standby function in the
controller, the products achieve low power consumption, low
standby power, and high cost-effectiveness in power supply
systems, while reducing external components.
The products are provided in fully molded TO-220 package
types. Pin 2 is deleted for greater isolation.
Continued on the next page…
Applications
Package: TO-220F-6L
Switching power supplies for electronic devices such as:
• Home appliances
• Digital appliances
• Office automation (OA) equipment
• Industrial apparatus
• Communication facilities
Not to scale
Typical Application
CRD Clamp Snubber Circuit
D1
C5
L2
D4
T1
VAC
R3
R9
PC1
P
C1
D3
R5
C8
C6
U1
D2
U2
R2
D
R6
R7
GND
D/ST
2
S/OCP
V CC
GND
FB/OLP
NC
C2
R4
R8
S
C7
STR
2W100D
VOUT
1
C4
C, RC
Damper
Snubber
Circuit
STR2W100D-DS
3 4 5 6 7
C3
PC1
ROCP
C9
SANKEN ELECTRIC CO., LTD.
May 14, 2012
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
STR2W152D and
STR2W153D
Features and Benefits (continued)
• Protection Functions:
▫ Overcurrent Protection function (OCP); Pulse-by-pulse,
built-in compensation circuit to minimize OCP point variation
on AC input voltage
▫ Overload Protection function (OLP); Auto restart, built-in
timer, reduces heat during overload condition, and no external
components required
▫ Overvoltage Protection function (OVP); Auto restart
▫ Thermal Shutdown function (TSD); Auto restart
Selection Guide
POUT*
(W)
MOSFET
Part Number
fOSC
(kHz)
STR2W152D
VDSS(min)
(V)
67
STR2W153D
650
RDS(on)
(max)
(Ω)
230 VAC
85 to 265 VAC
3.0
60
40
1.9
90
60
*The listed output power is based on the package thermal ratings, and the peak
output power can be 120% to 140% of the value stated here. At low output voltage
and short duty cycle, the output power may be less than the value stated here.
The polarity value for current specifies a sink as "+," and a source as “−,” referencing the IC.
Absolute Maximum Ratings Unless specifically noted, TA is 25°C
Characteristic
Symbol
Drain Peak Current1
IDPeak
Maximum Switching Current2
IDMAX
EAS
Avalanche Energy3
ILPEAK
STR2W152D
STR2W153D
STR2W152D
STR2W153D
Notes
Pins
Single pulse
1–3
TA = –20°C to 125°C
1–3
STR2W152D
STR2W153D
STR2W152D
Single pulse VDD = 99 V, L = 20 mH
1–3
STR2W153D
62
mJ
86
mJ
2.3
A
32
V
6–5
−0.3 to 14
V
VFB
FB/OLP Sink Current
IFB
6–5
STR2W153D
A
A
4–5
VCC
FB/OLP Pin Voltage
PD1
6.0
9.5
A
Control Part Input Voltage
MOSFET Power
A
A
V
3–5
With infinite heatsink
6.0
9.5
2.7
VOCP
Dissipation4
Unit
−2 to 6
S/OCP Pin Voltage
STR2W152D
Rating
1.0
mA
23.8
W
26.5
W
1.3
W
4–5
0.13
W
−20 to 115
°C
1–3
Without heatsink
Control Part Power Dissipation
PD2
Internal Frame Temperature in
Operation5
TF
–
Operating Ambient Temperature
TOP
–
−20 to 115
°C
Storage Temperature
Tstg
–
−40 to 125
°C
Channel Temperature
Tch
–
150
°C
Specified by VCC × ICC
1Refer
to MOSFET Safe Operating Area Curve.
2I
DMAX is the drain current determined by the drive voltage of the IC and the threshold voltage, Vth , of the MOSFET.
3Refer to MOSFET Avalanche Energy Derating Coefficient Curve.
4Refer to MOSFET Temperature versus Power Dissipation Curve.
5Maximum recommended internal frame temperature, T (max) = 105°C.
F
STR2W100D-DS
SANKEN ELECTRIC CO., LTD.
2
May 14, 2012
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
STR2W152D and
STR2W153D
Electrical Characteristics of Control Part Unless specifically noted, TA is 25°C, VCC = 18 V
Characteristic
Symbol
Operation Start Voltage
VCC(ON)
Operation Stop Voltage*
VCC(OFF)
Circuit Current in Operation
ICC(ON)
Test Conditions
VCC = 12 V
Pins
Min.
Typ.
Max.
Unit
4–5
13.8
15.3
16.8
V
4–5
7.3
8.1
8.9
V
4–5
−
−
2.5
mA
Minimum Start Voltage
VST(ON)
4–5
−
40
−
V
Startup Current
ISTARTUP
VCC = 13.5 V
4–5
−3.9
−2.5
−1.1
mA
Startup Current Threshold Biasing
Voltage*
VCC(BIAS)
ICC = –100 μA
4–5
8.5
9.5
10.5
V
Average Operation Frequency
fOSC(AVG)
1–5
60
67
74
kHz
Frequency Modulation Deviation
Maximum Duty Cycle
Leading Edge Blanking Time
Δf
1–5
−
5
−
kHz
DMAX
1–5
65
74
83
%
tBW
–
−
390
−
ns
OCP Compensation Coefficient
DPC
–
−
17
−
mV/μs
OCP Compensation Duty Cycle Limit
DDPC
–
−
36
−
%
OCP Threshold Voltage at
Zero Duty Cycle
VOCP(L)
3–5
0.69
0.78
0.87
V
OCP Threshold Voltage at
36% Duty Cycle
VOCP(H)
3–5
0.79
0.88
0.97
V
Maximum Feedback Current
IFB(MAX)
Minimum Feedback Current
IFB(MIN)
FB/OLP Oscillation Stop Threshold
Voltage
VFB(OFF)
OLP Threshold Voltage
OLP Operation Current
6–5
−280
−170
−90
μA
6–5
−30
−15
−7
μA
VCC = 32 V
6–5
1.3
1.4
1.5
V
VFB(OLP)
VCC = 32 V
6–5
7.3
8.1
8.9
V
ICC(OLP)
VCC = 12 V
4–5
−
230
−
μA
tOLP
1–5
54
68
82
ms
FB/OLP Clamp Voltage
VFB(CLAMP)
6–5
11
12.8
14
V
OVP Threshold Voltage
VCC(OVP)
4–5
26
29
32
V
TJ(TSD)
−
130
−
−
°C
Pins
Min.
Typ.
Max.
Unit
OLP Delay Time
Thermal Shutdown Activating
Temperature
VCC = 12 V
*VCC(BIAS) > VCC(OFF) always.
Electrical Characteristics of MOSFET Unless specifically noted, TA is 25°C
Characteristic
Symbol
Test Conditions
Drain-to-Source Breakdown Voltage
VDSS
1–5
650
―
―
V
Drain Leakage Current
IDSS
1–5
―
―
300
μA
―
―
3.0
Ω
On-Resistance
RDS(ON)
Switching Time
tf
Thermal Resistance*
Rθch-F
STR2W152D
STR2W153D
1–5
1–5
STR2W152D
STR2W153D
―
―
―
1.9
Ω
―
―
250
ns
―
―
2.48
°C/W
―
―
1.95
°C/W
*The thermal resistance between the channels of the MOSFET and the internal frame.
STR2W100D-DS
SANKEN ELECTRIC CO., LTD.
3
May 14, 2012
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
STR2W152D and
STR2W153D
Characteristic Performance
STR2W152D
MOSFET Safe Operating Area Curve
100
Single pulse
TA = 25°C
100
Drain current limited
by on-resistance
10
80
Drain Current, ID (A)
Safe Operating Area
Temperature Derating Coefficient (%)
S. O. A. Temperature Derating Coefficient Curve
60
40
20
0.1 ms
1 ms
1
0.1
0
0
20
40
60
80
100
120
To use this graph, apply the S.O.A
temperature derating coefficient
taken from the graph at the left
Internal Frame Temperature, TF (°C)
0.01
1
10
100
1000
Drain-to-Source Voltage, VDS (V)
MOSFET Temperature versus Power Dissipation Curve
100
Allowable Power Dissipation, PD1 (W)
EAS
Temperature Derating Coefficient (%)
MOSFET Avalanche Energy Derating Coefficient Curve
80
60
40
20
0
25
50
75
100
125
150
25
20
With infinite heatsink
PD1 = 23.8 W
15
10
5
0
Without heatsink
PD1 = 1.3 W
0
Transient Thermal Resistance, Rθch-c (°C/W)
Channel Temperature, Tch (°C)
10
20
40
60
80 100 120 140 160
Ambient Temperature, TA (°C)
Transient Thermal Resistance Curve
1
0.1
0.01
10–6
10–5
10–4
10–3
10–2
10–1
Time (s)
STR2W100D-DS
SANKEN ELECTRIC CO., LTD.
4
May 14, 2012
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
STR2W152D and
STR2W153D
Characteristic Performance
STR2W153D
MOSFET Safe Operating Area Curve
100
Single pulse
TA = 25°C
Drain current limited
by on-resistance
100
0.1 ms
10
80
Drain Current, ID (A)
Safe Operating Area
Temperature Derating Coefficient (%)
S. O. A. Temperature Derating Coefficient Curve
60
40
20
1 ms
1
0.1
0
0
20
40
60
80
100
120
To use this graph, apply the S.O.A
temperature derating coefficient
taken from the graph at the left
Internal Frame Temperature, TF (°C)
0.01
1
10
100
1000
Drain-to-Source Voltage, VDS (V)
MOSFET Temperature versus Power Dissipation Curve
100
Allowable Power Dissipation, PD1 (W)
EAS
Temperature Derating Coefficient (%)
MOSFET Avalanche Energy Derating Coefficient Curve
80
60
40
20
0
25
50
75
100
125
150
30
25
With infinite heatsink
PD1 = 26.5 W
20
15
10
5
0
Without heatsink
PD1 = 1.3 W
0
Transient Thermal Resistance, Rθch-c (°C/W)
Channel Temperature, Tch (°C)
10
20
40
60
80 100 120 140 160
Ambient Temperature, TA (°C)
Transient Thermal Resistance Curve
1
0.1
0.01
10–6
10–5
10–4
10–3
10–2
10–1
Time (s)
STR2W100D-DS
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May 14, 2012
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
STR2W152D and
STR2W153D
Functional Block Diagram
4
VCC
Startup
UVLO
7
Reg
VREG
OVP
D/ST
1
TSD
NC
PWM
Oscillator
DRV
SQ
R
OCP
VCC
Drain peak current
compensation
OLP
Feedback
control
FB/OLP
6
Slope
compensation
Pin-out Diagram
D/ST
S/OCP
NC
STR2W100D-DS
5
STR2W100D Pin List Table
Name
D/ST
3
S/OCP
4
4
VCC
Power supply voltage input for Control Part and input of Overvoltage
Protection (OVP) signal
6
5
GND
Ground
6
FB/OLP
7
NC
5
7
GND
1
3
FB/OLP
3
S/OCP
Number
1
VCC
GND
LEB
Function
MOSFET drain pin and input of the startup current
MOSFET source and input of Overcurrent Protection (OCP) signal
Feedback signal input for constant voltage control signal and input of
Overload Protection (OLP) signal
No connection
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May 14, 2012
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
STR2W152D and
STR2W153D
Package Diagram
TO-220F-6L
10.0±0.2
4.2±0.2
Gate burr
Ø3.2±0.2
7.9±0.2
16.9±0.3
4±0.2
0.5
2.8±0.2
R-end
(5.4)
)
-R1
(2
6-0.65 +0.2
-0.1
6×P1.27±0.15=7.62±0.15
Dimensions between roots
10.4±0.5
6-0.74±0.15
5.0±0.5
2.8
2.6±0.1
Dimensions from root
0.45 +0.2
-0.1
5.08±0.6
Dimensions between tips
0.5
Front view
1 2 3 4 5 6 7
Pin treatment Pb-free. Device composition
compliant with the RoHS directive.
Marking Diagram
STR
0.5
0.5
Side view
NOTES:
1) Unit: mm
2) Gate Burr: indicates protrusion of 0.3 mm (max)
3) Leadform: No. LF2003
4) Pin #2 removed in order to secure distance between pin #1
(high-voltage pin) and pin #3 (low-voltage pin)
Part Number
2W1xxD
X1 YMDD X2
STR2W100D-DS
0.5
Lot Number
X1 is a Sanken control number
Y is the last digit of the year (0 to 9)
M is the month (1 to 9, O, N, or D)
DD is the day (01 to 31)
X2 is a Sanken control number
SANKEN ELECTRIC CO., LTD.
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May 14, 2012
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
STR2W152D and
STR2W153D
Because reliability can be affected adversely by improper storage
environments and handling methods, please observe the following
cautions.
Cautions for Storage
•
Ensure that storage conditions comply with the standard
temperature (5°C to 35°C) and the standard relative humidity
(around 40% to 75%); avoid storage locations that experience
extreme changes in temperature or humidity.
•
Avoid locations where dust or harmful gases are present and
avoid direct sunlight.
•
Reinspect for rust on leads and solderability of the products that
have been stored for a long time.
Cautions for Testing and Handling
When tests are carried out during inspection testing and other
standard test periods, protect the products from power surges
from the testing device, shorts between the product pins, and
wrong connections. Ensure all test parameters are within the
ratings specified by Sanken for the products.
Remarks About Using Silicone Grease with a Heatsink
• When silicone grease is used in mounting the products on a
heatsink, it shall be applied evenly and thinly. If more silicone
grease than required is applied, it may produce excess stress.
• Volatile-type silicone greases may crack after long periods of
time, resulting in reduced heat radiation effect. Silicone greases
with low consistency (hard grease) may cause cracks in the mold
resin when screwing the products to a heatsink.
Our recommended silicone greases for heat radiation purposes,
which will not cause any adverse effect on the product life, are
indicated below:
Type
Suppliers
G746
Shin-Etsu Chemical Co., Ltd.
YG6260
Momentive Performance Materials Inc.
SC102
Dow Corning Toray Co., Ltd.
Cautions for Mounting to a Heatsink
• When the flatness around the screw hole is insufficient, such as when
mounting the products to a heatsink that has an extruded (burred)
screw hole, the products can be damaged, even with a lower than
STR2W100D-DS
recommended screw torque. For mounting the products, the mounting
surface flatness should be 0.05 mm or less.
• Please select suitable screws for the product shape. Do not use
a flat-head machine screw because of the stress to the products.
Self-tapping screws are not recommended. When using self-tapping
screws, the screw may enter the hole diagonally, not vertically,
depending on the conditions of hole before threading or the work
situation. That may stress the products and may cause failures.
• Recommended screw torque: 0.588 to 0.785 N●m (6 to 8 kgf●cm).
• For tightening screws, if a tightening tool (such as a driver) hits the
products, the package may crack, and internal stress fractures may
occur, which shorten the lifetime of the electrical elements and can
cause catastrophic failure. Tightening with an air driver makes a
substantial impact. In addition, a screw torque higher than the set
torque can be applied and the package may be damaged. Therefore,
an electric driver is recommended.
When the package is tightened at two or more places, first pre-tighten
with a lower torque at all places, then tighten with the specified torque.
When using a power driver, torque control is mandatory.
Soldering
•
When soldering the products, please be sure to minimize the
working time, within the following limits:
260±5°C 10±1 s
(Flow, 2 times)
380±10°C 3.5±0.5 s (Soldering iron, 1 time)
• Soldering should be at a distance of at least 2.0 mm from the
body of the products.
Electrostatic Discharge
•
When handling the products, the operator must be grounded.
Grounded wrist straps worn should have at least 1 MΩ of
resistance from the operator to ground to prevent shock hazard,
and it should be placed near the operator.
•
Workbenches where the products are handled should be
grounded and be provided with conductive table and floor mats.
•
When using measuring equipment such as a curve tracer, the
equipment should be grounded.
•
When soldering the products, the head of soldering irons or the
solder bath must be grounded in order to prevent leak voltages
generated by them from being applied to the products.
•
The products should always be stored and transported in Sanken
shipping containers or conductive containers, or be wrapped in
aluminum foil.
SANKEN ELECTRIC CO., LTD.
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May 14, 2012
STR2W152D and
STR2W153D
Current Mode Control PWM Regulator ICs
For Switching Power Supplies
• The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the
latest revision of the document before use.
• Application and operation examples described in this document are quoted for the sole purpose of reference for the use of the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or
any other rights of Sanken or any third party which may result from its use.
• Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures
including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device
failure or malfunction.
• Sanken products listed in this document are designed and intended for the use as components in general purpose electronic equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.).
When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and
its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), and whenever
long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest Sanken sales
representative to discuss, prior to the use of the products herein.
The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required
(aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited.
• In the case that you use Sanken products or design your products by using Sanken products, the reliability largely depends on the
degree of derating to be made to the rated values. Derating may be interpreted as a case that an operation range is set by derating the
load from each rated value or surge voltage or noise is considered for derating in order to assure or improve the reliability. In general,
derating factors include electric stresses such as electric voltage, electric current, electric power etc., environmental stresses such
as ambient temperature, humidity etc. and thermal stress caused due to self-heating of semiconductor products. For these stresses,
instantaneous values, maximum values and minimum values must be taken into consideration.
In addition, it should be noted that since power devices or IC's including power devices have large self-heating value, the degree of
derating of junction temperature affects the reliability significantly.
• When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, chemically
or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance
and proceed therewith at your own responsibility.
• Anti radioactive ray design is not considered for the products listed herein.
• Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken's distribution network.
• The contents in this document must not be transcribed or copied without Sanken's written consent.
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May 14, 2012