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UC2844NG4 Datasheet(PDF) 2 Page - Texas Instruments

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Part No. UC2844NG4
Description  CURRENT MODE PWM CONTROLLER
Download  28 Pages
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

UC2844NG4 Datasheet(HTML) 2 Page - Texas Instruments

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ABSOLUTE MAXIMUM RATINGS
(1)
CONNECTION DIAGRAMS
1
2
3
4
8
7
6
5
COMP
VFB
ISENSE
RT/CT
VREF
VCC
OUTPUT
GROUND
DIL-8, SOIC-8
N or J PACKAGE, D8 PACKAGE
(TOP VIEW)
NC − No internal connection
1
2
3
4
5
6
7
14
13
12
11
10
9
8
COMP
NC
VFB
NC
ISENSE
NC
RT/CT
SOIC-14, CFP-14
D or W PACKAGE
(TOP VIEW)
VREF
NC
VCC
VC
OUTPUT
GROUND
PWR GND
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
VCC
VC
NC
OUTPUT
NC
NC
VFB
NC
ISENSE
NC
PLCC-20
Q PACKAGE
(TOP VIEW)
UC1842/3/4/5
UC2842/3/4/5
UC3842/3/4/5
SLUS223C – APRIL 1997 – REVISED JUNE 2007
UNIT
Low impedance source
30 V
Supply voltage
ICC < 30 mA
Self Limiting
Output current
±1 A
Output energy (capacitive load)
5
µJ
Analog inputs (Pins 2, 3)
–0.3 V to 6.3 V
Error amp output sink current
10 mA
TA≤ 25°C (DIL-8)
1 W
Power dissipation
TA≤ 25°C (SOIC-14)
725 mW
TA≤ 25°C (SOIC-8)
650 mW
Storage temperature range
–65
°C to 150°C
Junction temperature range
–55
°C to 150°C
Lead temperature (soldering, 10 seconds)
300
°C
(1)
All voltages are with respect to Pin 5. All currents are positive into the specified terminal. Consult Packaging Section of Databook for
thermal limitations and considerations of packages.
2
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