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UC2854B-EP Fiches technique(PDF) 5 Page - Texas Instruments

No de pièce UC2854B-EP
Description  UC2854B-EP Advanced High-Power Factor Preregulator
Download  36 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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UC2854B-EP Fiches technique(HTML) 5 Page - Texas Instruments

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UC2854B-EP
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SGLS318A – NOVEMBER 2005 – REVISED NOVEMBER 2015
Pin Functions (continued)
PIN
I/O
DESCRIPTION
NAME
J/N/DW
Q/L
VCC
15
19
I
Positive supply rail
Used to set the peak limit point and as an internal reference for various device functions.
VREF
9
12
O
This voltage must be present for the device to operate.
One of the inputs into the multiplier. This pin provides the input RMS voltage to the multiplier
VRMS
8
10
I
circuitry.
This pin provides the feedback from the output. This input goes into the voltage error
VSENSE
11
14
I
amplifier and the output of the error amplifier is another of the inputs into the multiplier
circuit.
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN
MAX
UNIT
VCC
Supply voltage
22
V
VSENSE, VRMS, ISENSE MOUT
11
V
Input voltage
PKLMT
5
V
IGTDRV
GTDRV current, continuous
0.5
A
IGTDRV
GTDRV current, 50% duty cycle
1.5
A
Input current
RSET, IAC, PKLMT, ENA
10
mA
TJ
Junction temperature
−55
150
°C
Tsol
Lead temperature, 1.6 mm (1/16 inch) from case for 10 seconds
300
°C
Tstg
Storage temperature
−65
150
°C
(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.
7.2 ESD Ratings
VALUE
UNIT
V(ESD)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)
±2000
V
(1)
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VCC
Supply voltage
10
20
V
TJ
Operating junction temperature
−55
125
°C
7.4 Thermal Information
UC2854B-EP
DW (SOIC)
THERMAL METRIC(1)
UNIT
16 PINS
HIGH
LOW
RθJA
Junction-to-ambient thermal resistance (2)
36.9
38.4
°C/W
RθJC
Junction-to-case thermal resistance
73.1
111.6
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
(2)
RθJA values are based on zero air flow.
Copyright © 2005–2015, Texas Instruments Incorporated
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