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UC1845J датащи(PDF) 2 Page - Texas Instruments

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номер детали UC1845J
подробное описание детали  Current Mode PWM Controller
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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UC1845J датащи(HTML) 2 Page - Texas Instruments

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UC1842/3/4/5
UC2842/3/4/5
UC3842/3/4/5
ABSOLUTE MAXIMUM RATINGS(Note 1)
Supply Voltage (Low Impedance Source) ..............30V
Supply Voltage (ICC < 30mA) ................. 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 ....................10 mA
Power Dissipation at TA
≤ 25°C (DIL−8) ................. 1W
Power Dissipation at TA
≤ 25°C (SOIC-14) .........725 mW
Storage Temperature Range .............. -65°C to +150°C
Junction Temperature Range ............. -55°C to +150°C
Lead Temperature (soldering, 10 seconds) ........... 300°C
Note 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.
CONNECTION DIAGRAMS
DIL-8, SOIC-8 (TOP VIEW)
N or J Package, D8 Package
PLCC-20 (TOP VIEW)
Q Package
SOIC-14, CFP-14. (TOP VIEW)
D or W Package
PACKAGE PIN FUNCTION
FUNCTION
PIN
N/C
1
COMP
2
N/C
3
N/C
4
VFB
5
N/C
6
ISENSE
7
N/C
8
N/C
9
RT/CT
10
N/C
11
PWR GND
12
GROUND
13
N/C
14
OUTPUT
15
N/C
16
VC
17
VCC
18
N/C
19
VREF
20
Package
TA
≤ 25°C
Power Rating
Derating Factor
Above TA
≤ 25°C
TA
≤ 70°C
Power Rating
TA
≤ 85°C
Power Rating
TA
≤ 125°C
Power Rating
W
700 mW
5.5 mW/°C
452 mW
370 mW
150 mW
DISSIPATION RATING TABLE


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