STR-W6253D 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators Features and Benefits
Description
▪ Overcurrent protection (OCP) with ac input voltage compensation function; no additional peripheral circuits required—minimizes dependency of OCP on ac input ▪ Overload protection (OLP) with integrated timer reduces power stress (temperature rise) at overload condition, requires no peripheral components ▪ Avalanche-guaranteed MOSFET improves device capability of withstanding excess surge voltage, providing a simple surge absorber circuit without breakdown voltage derating ▪ Start-up circuit eliminates the need for a start-up resistor, and helps to reduce input power consumption
The STR-W6200D series are current-mode PWM ICs that incorporate controller chips. These devices are manufactured using a proprietary high-voltage BCD process, and avalancheguaranteed MOSFETs. These elements allow power supply systems designs that are highly reliable and simple, with fewer peripheral components. These ICs also provide Auto-Burst mode operation, which lowers input power requirements at light loads, and improves efficiency over the entire load range and universal-input range. Applicatons include: ▪ ▪ ▪ ▪
Continued on the next page…
Package: TO-220
TV set top box LCD PC monitor, LCD TV Printer, scanner General consumer, PC, and industrial applications requiring SMPS power supply with standby mode
Not to scale
Functional Block Diagram STARTUP
VCC
D/ST
7.1 V
UVLO
REG
VREG
28.5 V
OVP
RST R SQ
15.5 V/ 8.9 V 7.1 V
ELP TSD
=1.6 mA
RQ
DMAX 75%
PWM OSC
I startup
S DRV
SQ R
S2
Frequency Modulation
FM/ELP
Q
OLP CK S1 tOLP = tFM ×32 R
12 V
OCP
Drain Peak Current Compensation
7.8 V
160 μA
Feedback Control
FB Slope Compensation
28103.53
LEB
S/OCP
GND
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
Features and Benefits (continued) ▪ Bias Assist function improves start-up performance by selfbiasing the VCC pin, and allows a use of a small value VCC capacitor, resulting in improved response to overvoltage conditions ▪ Very low current consumption in nonoperating (UVLO) state: ICC(off) = 5 μA (typical) at VCC = 13.8 V ▪ Slope compensation circuit stabilizes operation, preventing interference from subharmonics ▪ Leading Edge Blanking
▪ Various protections: • Overcurrent Protection (OCP), pulse-by-pulse sensing • Overload Protection (OLP), auto restart after certain duration • External Latch Protection (ELP), latched • Overvoltage Protection (OVP), latched • Thermal Shut Down (TSD), latched ▪ Externally-activated shut down protection (ELP) for emergency system shut down ▪ Auto-Burst Standby function (pin < 0.1 W at zero output load condition) ▪ Audible noise reducing function in Standby mode ▪ TO-220 full-molded package with 6 pins
Selection Guide Part Number
Packing
STRW6253D
50 pieces per tube
Pin-out Diagram
Terminal List Table Number
Name
1
D/ST
2
NC
3
S/OCP
4
Description
Functions
Drain/startup terminal
MOSFET drain and input of start-up signal
Clipped
No connection
Source/Overcurrent Protection terminal
MOSFET source and input of overcurrent detection signal
VCC
Power supply terminal
Input of power supply for control circuit
5
GND
Ground terminal
Ground
6
FB
Feedback terminal
Input of constant voltage control signal
7
FM/ELP
Frequency jittering and External Latch Protection terminal
Control input for frequency jittering control and External Latch Protection
1 2 3 4 5 6 7
All performance characteristics given are typical values for circuit or system baseline design only and are at the nominal operating voltage and an ambient temperature, TA, of 25°C, unless otherwise stated. Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
2
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
ABSOLUTE MAXIMUM RATINGS at TA = 25°C Symbol
Terminal
Rating
Unit
Drain Current1
Characteristic
IDpeak
1-3
Single Pulse
Note
10
A
Maximum Switching Current2
IDMAX
1-3
TA = –20 to 125°C
10
A mJ
EAS
1-3
Single Pulse
86
IDpeak
1-3
VDD = 99 V, L = 20 mH
2.7
A
S/OCP Terminal Voltage
VOCP
3-5
–2 to 6
V
FM/ELP Terminal Voltage
VFM
7-5
–0.3 to 12
V
FM/ELP Terminal Inflow Current
IFM
7-5
3
mA
FB Terminal Voltage
VFB
6-5
–0.3 to 9
V
Controller (MIC) Input Voltage
VCC
4-5
0 to 32
V
MOSFET Power Dissipation4
PD1
8-1
With infinite heatsink
27.5
W
Without heatsink
1.3
W
Controller (MIC) Power Dissipation
PD2
5-3
For Vcc×Icc
0.8
W
Operating Internal Frame Temperature
TF
–
Refer to TOP
–20 to 115
°C
Operating Ambient Temperature
Top
–
–20 to 115
°C
Storage Temperature
Tstg
–
–40 to 125
°C
Channel Junction Temperature
TJ
–
150
°C
Single Pulse Avalanche Energy3
1Refer
to figure 1 2I DMAX is the drain current on the D/ST pin determined by the drive voltage of the IC and the threshold voltage, Vth, of the MOSFET 3Refer to figure 3 4Refer to figure 4
Figure 1 – MOSFET Safe Operating Area Derating Curve
Figure 2 – MOSFET Safe Operating Area Drain Current versus Voltage at TA = 25°C, Single Pulse 100.00
80
10.00 Drain Current, ID (A)
Safe Operating Area Temperature Derating Coefficient (%)
100
60
40
0. 1
1
it m ) t li S(on n rre R D Cu e to du
1.00
m
m s
s
0.10 20 Refer to figure 1 for MOSFET SOA temperature derating coefficient 0.01
0 0
25
50
75
100
Temperature, TF (°C)
125
150
1
10
100
1000
Drain-to-Source Voltage, VDS (V)
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
3
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
Figure 3 – MOSFET Avalanche Energy Derating Curve
Figure 4 – Transient Thermal Resistance 10.00 Transient Thermal Resistance, RQJC (°C/W)
80
60
40
20
1.00
0.10
0.01
0 25
50
75
100
125
150
1μ
10μ
100μ
1m
10m
100m
Time, t (s)
Channel Junction Temperature, TJ (°C)
Figure 5 – MOSFET Power Dissipation versus Temperature 30
25 Power Dissipation, PD1 (W)
EAS Temperature Derating Coefficient (%)
100
20
With infinite heatsink PD1 = 26 W at TA ≤ 25°C
15
10
5
Without heatsink PD1 = 1.3 W at TA ≤ 25°C
0 0
20
40
60
80
100
120
140
160
Ambient Temperature, TA (°C)
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
4
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
ELECTRICAL CHARACTERISTICS valid at VCC = 18 V, TA = 25°C, unless otherwise specified Characteristic
Symbol Terminal
Test Conditions
Min.
Typ.
Max
Units
Power Supply Start-up Operation Operation Start Voltage
VCC(ON)
4-5
(VCC voltage at which operation starts) Measurement circuit 1, VCC = 0 through 13.9 through 17.1 V
13.9
15.5
17.1
V
Operation Stop Voltage
VCC(OFF)
4-5
(VCC voltage at which operation stops) Measurement circuit 1, VCC = 17.1 through 9.8 to 8.0 V
8.0
8.9
9.8
V
ICC(ON)
4-5
(Inflow current into VCC terminal in oscillation) Measurement circuit 1
–
1.4
2.8
mA
Circuit Current in Non-Oscillation
ICC(STOP)
4-5
(Inflow current into VCC terminal at VFB = 0 V) Measurement circuit 1
–
0.8
1.3
mA
Circuit Current in Non-Operation
ICC(OFF)
4-5
(Inflow current into VCC terminal prior to oscillation) Measurement circuit 1, VCC = 13.8
–
5
20
μA
Start-up Current
Istartup
4-5
(Inflow current into D/ST terminal) Measurement circuit 7, VCC = 0, D/ST = 450 V
–0.9
–1.6
–2.3
mA
Bias Assist Voltage
VBIAS
4-5
(VCC voltage at which Istartup starts, and IstartupBias begins) Measurement circuit 7, VCC = 17.1 through 13.6 to 16.8 V
13.6
15.2
16.8
V
FM/ELP High Threshold Voltage
VFM(H)
7-5
(FM/ELP terminal voltage at which IFM changes from –13 μA to 13 μA) Measurement circuit 2
4.0
4.5
5.0
V
FM/ELP Low Threshold Voltage
VFM(L)
7-5
(FM/ELP terminal voltage at which IFM changes from 13 μA to –13 μA) Measurement circuit 2
2.4
2.8
3.2
V
FM/ELP Voltage Hysteresis
VFMhys
7-5
(VFM(H) – VFM(L)) Measurement circuit 2
1.4
1.7
1.8
V
–17.4
–13
–8.6
μA
Circuit Current in Operation
Operating Characteristics
FM/ELP Outflow Current1
IFMsrc
7-5
(FM/ELP terminal outflow current at VFM = VFM(L)) Measurement circuit 2
FM/ELP Inflow Current1
IFMsink
7-5
(FM/ELP terminal inflow current at VFM = VFM(H)) Measurement circuit 2
8.6
13
17.4
μA
Average Switching Frequency
fOSC(av)
1-5
(D/ST terminal average oscillation frequency) Measurement circuit 2
60
67
74
kHz
∆f
1-5
fOSC (peak-to-peak) Measurement circuit 2
4.8
6.9
9
kHz
DMAX
1-5
(Maximum width of the low portion of the D/ST terminal waveform) Measurement circuit 2
71
75
79
%
FB Maximum Feedback Current1
IFB(MAX)
6-5
(FB terminal outflow current at VFB = 0 V) Measurement circuit 3
–220
–160
–100
μA
Burst Threshold Voltage
Vburst(th)
6-5
Set VFM = 0 V and decrease VFB (Vburst(th) is the FB terminal voltage level at which D/ST changes from low to high) Measurement circuit 3
0.99
1.10
1.21
V
Slope Compensation Start-up Duty Cycle
DSLP
6-5
DSLP = (t3 / t4) × 100 (see figure for measurement circuit 4 for values of t) Measurement circuit 4
–
27
–
%
Slope Compensation Rate
SLP
6-5
SLP = 0.02 / (t2 – t1) (see figure for measurement circuit 4 for values of t) Measurement circuit 4
–22
–17
–12
mV/μs
Frequency Jitter Deviation Maximum Duty Cycle
Continued on next page…
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
5
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
ELECTRICAL CHARACTERISTICS, continued, valid at VCC = 18 V, TA = 25°C, unless otherwise specified Characteristic
Symbol Terminal
Test Conditions
Min.
Typ.
Max
Units
Set VFM = 0 V and increase VOCP. (VOCP1 is the S/OCP terminal voltage level at which D/ST changes from low to high) Measurement circuit 5
0.71
0.78
0.86
V
Protection Operation OCP Threshold Voltage at Zero Duty Cycle (0% On-Duty)
VOCP1
3-5
DPC
–
DPC = –0.75× SLP / fOSC(av)
1.5
1.9
2.3
mV/ DC%
OCP Threshold Voltage After Compensation
VOCP2
3-5
VOCP2 = DPC × DMAX + VOCP1
0.82
0.93
1.04
V
Leading Edge Blanking Time
tblank
1-5
(The low portion of the D/ST terminal waveform at VOCP = 2 V) Measurement circuit 5
280
400
520
ns
OLP Delay Time
tOLP
1-5
(Time between setting FB terminal open and when oscillation stops) Measurement circuit 6
–
200
–
ms
Circuit Current in OLP-Operation
ICC (OLP)
4-5
(Inflow current into VCC terminal after OLP operation) Measurement circuit 6
–
410
700
μA
OVP Protection Voltage
VCC(OVP)
4-5
(VCC terminal voltage at which the voltage of D/ST terminal is switched from low to high by decreasing VFB after setting VFM = 0 V) Measurement circuit 1, VCC = 18.0 V through 27 to 30 V
27
28.5
30
V
Latch Circuit Sustaining Current2
ICC(La.H)
4-5
(Inflow current into VCC terminal after OVP operation) Measurement circuit 1, VCC = 8 V
–
140
220
μA
VCC(La.OFF)
4-5
(VCC voltage at which ICC is dropped below 20 μA by decreasing VCC after OVP operation) VCC = 31.0 V through 7.8 to 6.4 V
6.4
7.1
7.8
V
ELP Threshold Voltage
VELP
7-5
(FM/ELP terminal voltage at which the oscillation of the D/ST terminal waveform is stopped by increasing VFM) Measurement circuit 2
6.4
7.1
7.8
V
Inflow Current at External Latch Protection
IELP
7-5
(Inflow current at VFM = VELP) Measurement circuit 2
–
55
100
μA
Thermal Shut Down Operating Temperature
TJTSD
–
135
–
–
°C
Drain-to-Source Breakdown Voltage
VDSS
1-3
ID = 300 μA, Measurement circuit 8
650
–
–
V
Drain Leakage Current
IDSS
1-3
VD = 650 V, Measurement circuit 7
–
–
300
μA
ON-Resistance
RDS(ON)
1-3
ID = 1.2 A, VFM = 0 V Measurement circuit 10
–
–
1.9
Ω
Switching Time
tr
1-3
Measurement circuit 9
–
–
400
ns
Thermal Resistance
RθJ-F
–
Measured between junction and internal frame
–
–
1.75
°C/W
Single Pulse Avalanche Energy
EAS
–
Measurement circuit 11
–
–
–
–
Drain Peak Current Compensation Coefficient
Latch Circuit Release Voltage2
Power MOSFET Characteristics
1Input 2The
and output current polarity at the device pin; plus(+) represents sink and minus(–) represents source. latch circuit means a circuit operated ELP, OVP, and TSD.
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
6
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
Measurement Circuit 1
V CC(ON) 13.8V
STR-W6200D D/ST 1
S/OCP VCC GND 3
4
5
FB 6
FM/ ELP
V CC
7
V FM
0V
V FB
0V
5V
A ICC
V DD 10V
+
1μF V FB
V CC
8V
V CC(OFF) 3.65V
V CCc(La.OFF)
V OFF(FM) 0V
2V
VD 100Ω
32V
V CC(OVP)
18V
VD
V FM
ICC ICC(OFF)
ICC(STOP)
ICC(La.H)
ICC(ON)
Measurement Circuit 2 18V V CC
5V
V FB
STR-W6200D D/ST 1
S/OCP VCC GND 3
4
5
FB 6
FM/ ELP
VD A
+
100Ω 18V V DD 10V
0V
0V
V FM
V FML
V FB
V FM
2.8Vtyp
V LFM +(V FMH -V FML)/2 IELP
Isrc(FM)
IFM 0μA
Δf =f osc(Hi)-f osc(Lo) Dmax= t2/ t1х100
Isnk(FM)
1μF
V CC
V ELP
4.5Vtyp
V FMH
7
IFM
5V
t2
VD f osc(Hi)
f osc(av) t1
f osc(Lo)
Measurement Circuit 3 18V V CC 5V
5V
V FM
STR-W6200D D/ST 1
S/OCP VCC GND 3
4
5
6
FM/ ELP
5V V FB
7
V HYS Vburst
5V
0V
IFB
VD +
100Ω 18V V DD 10V
FB
0V
V CC
VD
A
1μF
V FM V FB
-IFB
IFB(MAX)
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
IFB(MIN)
7
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
Measurement Circuit 4 18V V CC
5V
3.65V
V FM
STR-W6200D D/ST 1
VD 100Ω
S/OCP VCC GND 3
4
5
FB 6
V FB
+
V DD 10V
V FB
7
V OCP 18V
FM/ ELP
1μF
V FM
4V V1
Internal feedback signal 0.68V V1-0.02V
V1-0.04V
V OCP
t4
4V
V CC
VD DSLP= t3 / t4 100 SLP = 0.02 / (t2-t1)
t1
t2
t3
t5(≈tblank)
Measurement Circuit 5 18V V CC 5V V FM
STR-W6200D D/ST 1
VD 100ǡ
S/OCP VCC GND 3
4
5
FB 6
FM/ ELP 7
3.65V
0V
2V V OCP1 V OCP
0V
V OCP
tblank
+
18V V DD 20V
1μF
V FM
V CC
VD
V D(Lo)
VOCP2 = (–0.75 × SLP × DMAX / fOSC(av)) + VOCP1
Measurement Circuit 6
18 V V CC
STR-W6200D D/ST 1
S/OCP VCC GND 3
VD 100Ω
4
5
ICC A
6
FM/ ELP
+
SW
V FM
7
t FM SW ONψOFF
V FB
1μF V DD 10V
FB
7.8 V typ
V FB V FM 47nF
VD
V CC 18V
ICC(OLP)
ICC t OLP(= t FM16)
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
8
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
Measurement Circuit 7 650V
400V V DD 18V
STR-W6200D D/ST 1
S/OCP VCC GND 3
ID
4
ICC
A
5
FB 6
V CC
FM/ ELP
13V
0V
V FM
7
V BIAS
5V
0V
A ID +
V DD
V CC
IDSS
V FM
ICC
1μF
ISTARTUP
Measurement Circuit 8
STR-W6200D D/ST 1
S/OCP VCC GND 3
4
5
FB 6
FM/ ELP 7
Measurement Circuit 9
STR-W6200D D/ST S/OCP 1
VD
3
VCC GND 4
5
FB 6
FM/ ELP
VD
10V
7
90%
VD ID
V
+
300 μ A
18V
V FM
1μF
47nF
V CC
100Ω
+
18V V DD 10V
10%
V FM
1μF
47nF
V CC
tr
Measurement Circuit 10
18V V CC
STR-W6200D D/ST 1
S/OCP VCC GND 3
4
5
FB 6
FM/ ELP 7
VD V
ID 0.6A
5V V FM
0V
+
18V V CC
1μF
V FM
VD
V D(Lo) RDS(ON) =V D(Lo) / 0.6
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
9
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
Measurement Circuit 11
Vcc
STR-W6200D D/ST S/OCP
L
1
3
VCC GND 4
V DD
5
FB 6
FM/ ELP
18V
8V
V GS
7
V DSpeak
+
V DS 18V V GS
IL
1μF
V DD
V DS
V CC
t
TYPICAL APPLICATION CIRCUIT
O UT
V IN ( ac)
1
4
D/ST
VCC
S T R -W 6200D FM / S/O C P ELP 3 7
GND 5
FB 6
G ND
Option
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
10
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
PACKAGE DIMENSIONS, TO-220
Ø3.2 ±0.2
2.6 ±0.1 Terminal dimension at case surface
+0.2
5.0 ±0.5 (5.4)
1)
+0.2
1.74 –0.1
×R (2
1.34 –0.1
10.4 ±0.5
XXXXXXXX XXXXXXXX
2.8 MAX
Branding
16.9 ±0.3
2.8 ±0.2
7.9 ±0.2
Gate Burr
4.2 ±0.2
4 ±0.2
10.0 ±0.2
+0.2
6×P1.27 ±0.15 = 7.62 ±0.15 Terminal dimensions at case surface
0.45 –0.1
5.08 ±0.6 Terminal dimension at lead tips
1 2 3 4 5 6 7
Gate burr: 0.3 mm (max.) Terminal core material: Cu Terminal treatment: Ni plating and solder dip Heat sink material: Cu Heat sink treatment: Ni plating Leadform: 2003 Weight (approximate): 2.3 g
Drawing for reference only Branding codes (exact appearance at manufacturer discretion): 1st line, type: W6253 2nd line, lot: YMDD R Where: Y is the last digit of the year of manufacture M is the month (1 to 9, O, N, D) DD is the 2-digit date R is the manufacturer registration symbol
Dimensions in millimeters
Leadframe plating Pb-free. Device composition complies with the RoHS directive.
Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com
11
60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators
STR-W6253D
PACKING SPECIFICATIONS Minimum packing option: Tube FM-205 E
4.8
+0.4 0
1.4
5.1 9 × R0.6
35.0
(15.4)
9.5–0.1
+0.3
8.9
Shipping Tube Dimensions: Wall thickness: 0.6±0.3 mm Wall warp: