STR-W6253D Allegro Microsystems Inc, STR-W6253D Datasheet - Page 8

• 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
100Ω
100
100Ω
V
V
V
V
V
V
1
1
1
DD
DD
DD
D/ST
D/ST
D/ST
D
D
D
10V
20V
10V
V
V
OCP
OCP
S/OCP VCC GND
3
S/OCP VCC GND
3
S/OCP VCC GND
3
18V
V
18V
V
V
STR-W6200D
STR-W6200D
STR-W6200D
I
CC
CC
CC
CC
4
4
4
4
4
4
A
18V
+
1μF
+
1μF
+
1μF
5
5
5
V
SW
6
6
6
6
6
6
FB
FB
FB
FB
V
4V
FB
FM/
7
FM/
7
FM/
7
ELP
ELP
ELP
V
V
V
47nF
FM
FM
FM
V
V
V
V
V
CC
FM
FB
OCP
D
D
S
SLP
LP
60 W-Universal Input/90 W-230 Vac Input
= 0.02 / (t2-t1)
= t3 / t4
5V
Measurement Circuit 4
Measurement Circuit 5
Measurement Circuit 6
Internal feedback signal
V
V
V
V
V
V
V
V
I
CC
CC
FM
OCP
D
CC
FM
FB
D
100
SW ON OFF
115 Northeast Cutoff, Box 15036
V
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
OCP2
0V
18V
5V
0.68V
V1-0.04V
= (–0.75 × SLP × D
18 V
t1
V
t
FM
D(Lo)
PWM Switching Regulators
V
18V
3.65V
t
OCP1
OLP
4V
0V
V1-0.02V
MAX
(= t
t2
7.8 V typ
FM
/ f
OSC(av)
16)
) + V
OCP1
V1
t3
3.65V
2V
I
CC(OLP)
t blank
t4
t5(≈t blank )
8