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UC2845AD Fiches technique(PDF) 2 Page - Texas Instruments

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No de pièce UC2845AD
Description  Current Mode PWM Controller
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

UC2845AD Fiches technique(HTML) 2 Page - Texas Instruments

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UC1842A/3A/4A/5A
UC2842A/3A/4A/5A
UC3842A/3A/4A/5A
DIL-8, SOIC-8 (TOP VIEW)
J or N, D8 Package
CONNECTION DIAGRAMS
ABSOLUTE MAXIMUM RATINGS (Note 1)
Note 1. All voltages are with respect to Ground, Pin 5. Currents
are positive into, negative out of the specified terminal. Consult
Packaging Section of Databook for thermal limitations and con-
siderations of packages. Pin numbers refer to DIL package only.
PLCC-20, LCC-20
(TOP VIEW)
Q, L Packages
Supply Voltage (Low Impedance Source) . . . . . . . . . . . . . . 30V
Supply Voltage (ICC mA) . . . . . . . . . . . . . . . . . . . . Self Limiting
Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±1A
Output Energy (Capacitive Load). . . . . . . . . . . . . . . . . . . . . 5
µJ
Analog Inputs (Pins 2, 3). . . . . . . . . . . . . . . . . . . -0.3V to +6.3V
Error Amp Output Sink Current . . . . . . . . . . . . . . . . . . . . 10mA
Power Dissipation at TA
≤ 25°C (DIL-8) . . . . . . . . . . . . . . . . 1W
Storage Temperature Range . . . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . 300°C
SOIC-14 (TOP VIEW)
D Package
PACKAGE PIN FUNCTION
FUNCTION
PIN
N/C
1
Comp
2
N/C
3-4
VFB
5
N/C
6
ISENSE
7
N/C
8-9
RT/CT
10
N/C
11
Pwr Gnd
12
Gnd
13
N/C
14
Output
15
N/C
16
VC
17
VCC
18
N/C
19
VREF
20
N/C
VREF
VCC
OUTPUT
VCC
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
N/C
N/C
N/C
RT/CT
N/C
COMP
VFB
ISENSE
PWRGND
N/C
10
9
SOIC-WIDE16 (TOP VIEW)
DW Package


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