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UC2845ADW Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce UC2845ADW
Description  Current-Mode PWM Controller
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

UC2845ADW Fiches technique(HTML) 5 Page - Texas Instruments

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UC1842A, UC1843A, UC1844A, UC1845A
UC2842A, UC2843A, UC2844A, UC2845A
UC3842A, UC3843A, UC3844A, UC3845A
www.ti.com
SLUS224E – SEPTEMBER 1994 – REVISED JULY 2016
Product Folder Links: UC1842A UC1843A UC1844A UC1845A UC2842A UC2843A UC2844A UC2845A UC3842A
UC3843A UC3844A UC3845A
Submit Documentation Feedback
Copyright © 1994–2016, Texas Instruments Incorporated
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN
MAX
UNIT
Supply voltage (low impedance source)
VCC pin
30
V
Output current, IOUT
±1
A
Output energy (capacitive load)
5
µJ
Analog inputs
–0.3
6.3
V
Maximum negative voltage
All pins
–0.3
V
Differential voltage between VC and VCC
VC pin
–0.3
V
Error amplifier output sink current, ICOMP
10
mA
Power dissipation at TA ≤ 25°C
1
W
Lead temperature (soldering, 10 s)
300
°C
Junction temperature, TJ
–55
150
°C
Storage temperature, Tstg
–65
150
°C
(1)
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2)
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
7.2 ESD Ratings
VALUE
UNIT
V(ESD)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)
±2000
V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2)
±1500
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
VCC
Bias supply voltage
VCC pin
11
V
VFB, VRC, VVFB
Voltage on analog pins
FB, ISENSE, and RT/CT pins
–0.1
5
V
VOUT
Gate driver output voltage
–0.1
VCC
V
IVCC
Supply bias current
25
mA
IVREF
Output current
VREF pin
10
mA
fOSC
Oscillator frequency
500
kHz
TA
Operating free-air temperature
UC184xA
–55
125
°C
UC284xA
–40
125
UC384xA
–40
85


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