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UC2872DW Fiches technique(PDF) 2 Page - Texas Instruments

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No de pièce UC2872DW
Description  Resonant Lamp Ballast Controller
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

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2
UC1872
UC2872
UC3872
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these parameters apply for TJ =
−55° C to +125°C for the
UC1872, –40
° C to +85° C for the UC2872, −0°C to +70°C for the UC3872; VCC= 5V, VC = 15V, VENBL = 5V, CT = 1nF, ZD = 1V.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Reference Section
Output Voltage
TJ = 25
° C
2.963
3.000
3.037
V
Over Temperature
2.940
3.000
3.060
V
Line Regulation
VCC = 4.75V to 18V
10
mV
Load Regulation
IO = 0 to −5mA
10
mV
Oscillator Section
Free Running Frequency
TJ = 25° C
576878
kHz
Maximum Synchronization Frequency
TJ = 25° C
160
200
240
kHz
Charge Current
VCT = 1.5V
180
200
220
µA
Voltage Stability
2%
Temperature Stability
48
%
Zero Detect Threshold
0.46
0.5
0.56
V
Error Amp Section
Input Voltage
VO = 2V
1.445
1.475
1.505
V
Input Bias Current
−0.4
−2
µA
Open Loop Gain
VO = 0.5 to 3V
65
90
dB
Output High
VINV = 1.3V
3.1
3.5
3.9
V
ABSOLUTE MAXIMUM RATINGS
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−0.3 to +10V
VCC, VC Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +24V
ZD Input Current
High Impedance Source . . . . . . . . . . . . . . . . . . . . . . +10mA
ZD Input Voltage
Low Impedance Source . . . . . . . . . . . . . . . . . . . . . . . . +24V
Power Dissipation at TA = 25
° C . . . . . . . . . . . . . . . . . . . . . . 1W
Storage Temperature . . . . . . . . . . . . . . . . . . .
−65° C to +150° C
Lead Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
° C
Note 1: Currents are positive into, negative out of the specified
terminal.
Note 2: Consult Packaging Section of Databook for thermal limi-
tations and considerations of package.
DIL-14 (TOP VIEW)
N Package
PLCC-20 (Top View)
Q Package
CONNECTION DIAGRAMS
SOIC-16, SSOP-16 (TOP VIEW)
DW, M Package


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