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SG1844J/DESC Datasheet(PDF) 2 Page - Microsemi Corporation

Part # SG1844J/DESC
Description  CURRENT MODE PWM CONTROLLER
Download  12 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG1844J/DESC Datasheet(HTML) 2 Page - Microsemi Corporation

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C URRENT -M ODE PWM C ONTROLLER
SG1844/SG1845 Series
PRODUCT DA T ABOOK 1996/1997
Copyright © 2000
Rev. 1.6c
2
P RODUCTION D ATA S HEET
ABSOLUTE MAXIMUM RATINGS
(Notes 1 & 2)
Supply Voltage (I
CC < 30mA) ............................................................... Self Limiting
Supply Voltage (Low Impedance Source) ........................................................ 30V
Output Current (Peak) ....................................................................................... ±1A
Output Current (Continuous) ....................................................................... 350mA
Output Energy (Capacitive Load) ....................................................................... 5µJ
Analog Inputs (VFB, ISENSE) ................................................................ -0.3V to +6.3V
Error Amp Output Sink Current ..................................................................... 10mA
Operating Junction Temperature
Hermetic (J, Y, F, L Packages) ................................................................... 150°C
Plastic (N, M, D, DM Packages) ................................................................ 150°C
Storage Temperature Range .......................................................... -65°C to +150°C
Lead Temperature (Soldering, 10 Seconds) .................................................. 300°C
PACKAGE PIN OUTS
V
REF
V
CC
OUT UT
GND
COM
V
FB
I
SENSE
R
T/CT
1
8
27
36
45
M & Y PACKAGE
(Top View)
DM PACKAGE
(Top View)
V
REF
V
CC
OUT UT
GND
COM
V
FB
I
SENSE
R
T/CT
1
8
27
36
45
V
REF
N.C.
V
CC
V
C
OUT UT
GND
WR GND
COM
N.C.
V
FB
N.C.
I
SENSE
N.C.
R
T/CT
1
14
213
312
411
510
69
78
D PACKAGE
(Top View)
M PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
95°C/W
N PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
65°C/W
DM PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
165°C/W
D PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
120°C/W
Y PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
130°C/W
J PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
80°C/W
F PACKAGE:
THERMAL RESISTANCE-JUNCTION TO CASE,
θθθθθ
JC
80°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
145°C/W
L PACKAGE:
THERMAL RESISTANCE-JUNCTION TO CASE,
θθθθθ
JC
35°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
120°C/W
Junction Temperature Calculation: T
J = TA + (PD x θJA).
The
θ
JA numbers are guidelines for the thermal performance of the device/pc-board
system. All of the above assume no ambient airflow.
THERMAL DATA
Note 1. Exceeding these ratings could cause damage to the device.
Note 2. All voltages are with respect to Pin 5. All currents are positive into the specified
terminal.
1
14
213
312
411
510
69
78
J & N PACKAGE
(Top View)
COM
N.C.
V
FB
N.C.
I
SENSE
N.C.
R
T/CT
V
REF
N.C.
V
CC
V
C
OUT UT
GROUND
OWER GND
F PACKAGE
(Top View)
10.V
REF
9. V
CC
8. V
C
7. OUT UT
6. GND
1. COM
2. V
FB
3. I
SENSE
4. R
T/CT
5. OWER GND
1
10
29
38
47
56
L PACKAGE
(Top View)
32
4
5
6
7
8
911
10
1. N.C.
2. N.C.
3. COM .
4. N.C.
5. V
FB
6. N.C.
7. I
SENSE
8. R
T/CT
9. N.C.
10. N.C.
120 19
18
17
16
15
14
12 13
11. N.C.
12. WR GND
13. GND
14. N.C.
15. OUT UT
16. N.C.
17. V
C
18. V
CC
19. N.C.
20. V
REF
RoHS / Pb-free Peak Package Solder Reflow Temp. (40 second max. exposure)............................... 260°C (+0, -5)
RoHS / Pb-free 100% Matte Tin Lead Finish
RoHS / Pb-free 100% Matte Tin Lead Finish
M Package: RoHS / Pb-free 100% Matte Tin Lead Finish
N Package: RoHS / Pb-free 100% Matte Tin Lead Finish


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