STR-W6253D Allegro Microsystems Inc, STR-W6253D Datasheet - Page 5

• Manufacturer Part Number: STR-W6253D
• Description: IC, AC-DC, REG, 6TO220
• Manufacturer: Allegro Microsystems Inc

Specifications of STR-W6253D

• Output Current: -13µA
• No. Of Outputs: 1
• Power Dissipation Pd: 1.3W
• Voltage Regulator Case Style: No. Of Pins
• Operating Temperature Range: -20°C To +115°C
• Package / Case: TO220
• Base Number: 6253
• Output: RoHS Compliant
• Input Voltage: 17.1V
• No. Of Pins: 6
• Rohs Compliant: Yes

STR-W6253D
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ELECTRICAL CHARACTERISTICS valid at V
Power Supply Start-up Operation
Operation Start Voltage
Operation Stop Voltage
Circuit Current in Operation
Circuit Current in Non-Oscillation
Circuit Current in Non-Operation
Start-up Current
Bias Assist Voltage
Operating Characteristics
FM/ELP High Threshold Voltage
FM/ELP Low Threshold Voltage
FM/ELP Voltage Hysteresis
FM/ELP Outflow Current
FM/ELP Inflow Current
Average Switching Frequency
Frequency Jitter Deviation
Maximum Duty Cycle
FB Maximum Feedback Current
Burst Threshold Voltage
Slope Compensation Start-up
Duty Cycle
Slope Compensation Rate
Characteristic
1
1
1
Symbol Terminal
I
V
V
V
CC(STOP)
I
I
f
I
V
CC(OFF)
V
FB(MAX)
I
V
I
OSC(av)
V
CC(OFF)
CC(ON)
I
D
FMsink
D
CC(ON)
startup
burst(th)
SLP
FMsrc
FMhys
FM(H)
FM(L)
BIAS
∆f
MAX
SLP
CC
6-5
4-5
4-5
4-5
4-5
4-5
4-5
4-5
7-5
7-5
7-5
7-5
7-5
1-5
1-5
1-5
6-5
6-5
6-5
= 18 V, T
60 W-Universal Input/90 W-230 Vac Input
(VCC voltage at which operation starts) Measurement
circuit 1, V
(VCC voltage at which operation stops) Measurement
circuit 1, V
(Inflow current into VCC terminal in oscillation)
Measurement circuit 1
(Inflow current into VCC terminal at V
Measurement circuit 1
(Inflow current into VCC terminal prior to oscillation)
Measurement circuit 1, V
(Inflow current into D/ST terminal) Measurement
circuit 7, V
(VCC voltage at which I
begins) Measurement circuit 7, V
13.6 to 16.8 V
(FM/ELP terminal voltage at which I
–13 μA to 13 μA) Measurement circuit 2
(FM/ELP terminal voltage at which I
13 μA to –13 μA) Measurement circuit 2
(V
(FM/ELP terminal outflow current at V
Measurement circuit 2
(FM/ELP terminal inflow current at V
Measurement circuit 2
(D/ST terminal average oscillation frequency)
Measurement circuit 2
f
(Maximum width of the low portion of the D/ST
terminal waveform) Measurement circuit 2
(FB terminal outflow current at V
Measurement circuit 3
Set V
terminal voltage level at which D/ST changes from
low to high) Measurement circuit 3
D
circuit 4 for values of t) Measurement circuit 4
SLP = 0.02 / (t2 – t1) (see figure for measurement
circuit 4 for values of t) Measurement circuit 4
OSC
SLP
A
FM(H)
= 25°C, unless otherwise specified
(peak-to-peak) Measurement circuit 2
= (t3 / t4) × 100 (see figure for measurement
FM
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
– V
= 0 V and decrease V
CC
CC
CC
FM(L)
= 0 through 13.9 through 17.1 V
= 17.1 through 9.8 to 8.0 V
= 0, D/ST = 450 V
) Measurement circuit 2
Test Conditions
startup
PWM Switching Regulators
CC
= 13.8
starts, and I
FB
FB
(V
CC
burst(th)
= 0 V)
FM
FM
= 17.1 through
FM
FB
FM
changes from
changes from
= V
= 0 V)
= V
startupBias
is the FB
FM(H)
FM(L)
)
)
–17.4
Min.
–220
13.9
–0.9
13.6
0.99
–22
8.0
4.0
2.4
1.4
8.6
4.8
60
71
–
–
–
–
Typ.
–160
15.5
–1.6
15.2
1.10
–13
–17
8.9
1.4
0.8
4.5
2.8
1.7
6.9
13
67
75
27
5
Max
–100
17.1
–2.3
16.8
–8.6
17.4
1.21
–12
9.8
2.8
1.3
5.0
3.2
1.8
20
74
79
9
–
Units
mV/μs
kHz
kHz
mA
mA
mA
μA
μA
μA
μA
%
%
V
V
V
V
V
V
V
5