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UCC2839D Datasheet(PDF) 2 Page - Texas Instruments

Part # UCC2839D
Description  Secondary Side Average Current Mode Controller
Download  7 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

UCC2839D Datasheet(HTML) 2 Page - Texas Instruments

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UCC2839
UCC3839
CONNECTION DIAGRAMS
ELECTRICAL CHARACTERISTICS: Unless otherwise specified, 0°C to 70°C for the UCC3839, –40°C to 85° for the
UCC2839. VLINE = 10V, RG = 400
Ω. TA =TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Current Error Amplifier
VIO
10
mV
AVOL
60
dB
CMRR
VCM = 0.5V to 5.5V
60
dB
PSRR
VLINE = 10V to 20V
60
dB
CAO High
CA– = 1V, CA+ = 1.1V, ICAO = –100 A
4.8
7
V
ICAO
CA– = 1V, CA+ = 1.1V, CAO = 0.5V
–500
–250
µA
CAO Low
CA– = 1V, CA+ = 0.9V, ICAO = 500
µA
0.2
0.4
V
GBW
F = 100kHz, TA = 25°C
3
5
MHz
Voltage Error Amplifier
VA–
1.46
1.5
1.525
V
AVOL
60
dB
PSRR
VLINE = 10V to 20V
60
dB
VAO High
IVAO = –100
µA to 100µA
4.8
5
5.2
V
IVAO
VA– = 1.45V, VAO = 0.5V
–500
–250
µA
VAO Low
VA– = 1.55V, VAO = 0.5V, IVAO = 500
µA
0.2
0.4
V
GBW
(Note 1)
3
5
MHz
Current Sense Amplifier
CSO Zero
CS+ = CS– = –0.3V to 5.5V, ICSO = –100
µA to 100µA
0.85
1
1.15
V
AV
CS+ = 0, CS– = 0mV to –200mV
7.75
8
8.2
V/V
Current Sense Amplifier (cont.)
Slew Rate
CS+ = 0, CS– = 0mV to –0.5V
2
4
V/
µs
CSO
CS+ = –200mV, CS– = –700mV
4.75
5
5.2
V
LED Driver
ILED
LED = 5.5V, CA– = 1V, CA+ = 1.1V, RG = 400
0
10
µA
LED = 5.5V, CA– = 1V, CA+ = 0.9V, RG = 400
9
10
11
mA
Gm
LED = 5.5V, CAO = 1V to 3V, RG = 400
2.25
2.5
2.75
mS
Slew Rate
CAO = 2V to 2.5V, LED = 400
Ω to 5.5V, RG = 400
1
4
V/
µs
DIL-14, SOIC-14 (Top View)
D or N Package
ABSOLUTE MAXIMUM RATINGS
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Supply Current
(LED not connected) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
(LED connected) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14mA
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to 15V
Power Dissipation at TA = 60°C
(LED not connected). . . . . . . . . . . . . . . . . . . . . . . . . . 20mW
(LED connected). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55mW
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . –55°C to +150°C
Lead Temperature (Soldering, 10sec.) . . . . . . . . . . . . . +300°C
Currents are positive into, negative out of the specified terminal.
Consult Packaging Section of Databook for thermal limitations
and considerations of package.


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