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UC184XA Datasheet(PDF) 2 Page - Microsemi Corporation

Part No. UC184XA
Description  CURRENT MODE PWM CONTROLLER
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

UC184XA Datasheet(HTML) 2 Page - Microsemi Corporation

  UC184XA Datasheet HTML 1Page - Microsemi Corporation UC184XA Datasheet HTML 2Page - Microsemi Corporation UC184XA Datasheet HTML 3Page - Microsemi Corporation UC184XA Datasheet HTML 4Page - Microsemi Corporation UC184XA Datasheet HTML 5Page - Microsemi Corporation UC184XA Datasheet HTML 6Page - Microsemi Corporation UC184XA Datasheet HTML 7Page - Microsemi Corporation UC184XA Datasheet HTML 8Page - Microsemi Corporation  
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C URRENT M ODE PWM C ONTROLLER
UC184xA/284xA/384xA
PRODUCT DA T ABOOK 1996/1997
Copyright © 1995
Rev. 1.2
12/95
2
P RODUCTION D ATA S HEET
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage (Low Impedance Source) (V
CC) ......................................................... 30V
Supply Voltage (I
CC < 30mA) .......................................................................... Self Limiting
Output Current ............................................................................................................. ±1A
Output Energy (Capacitive Load) ................................................................................. 5µJ
Analog Inputs (V
FB & ISENSE) ........................................................................ -0.3V to +6.3V
Error Amp Output Sink Current ............................................................................... 10mA
Power Dissipation at T
A = 25°C (M Package) .............................................................. 1W
Storage Temperature Range .................................................................... -65°C to +150°C
Lead Temperature (Soldering, 10 Seconds) ............................................................. 300°C
PACKAGE PIN OUTS
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect
to Ground. Currents are positive into, negative out of the specified terminal. Pin
numbers refer to DIL packages only.
1
8
27
36
45
M & Y PACKAGE
(Top View)
M PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθθθθ
JA
95°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
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
DM PACKAGE
(Top View)
V
REF
V
CC
OUTPUT
GND
COMP
V
FB
I
SENSE
R
T/CT
1
8
27
36
45
V
REF
N.C.
V
CC
V
C
OUTPUT
GND
PWR GND
COMP
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)
COMP
V
FB
I
SENSE
R
T/CT
V
REF
V
CC
OUTPUT
GND


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