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UCC2817AN Datasheet(PDF) 4 Page - Texas Instruments

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Part # UCC2817AN
Description  BiCMOS POWER FACTOR PREREGULATOR
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

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UCC2817A, UCC2818A
UCC3817A, UCC3818A
SLUS577B − SEPTEMBER, 2003 − REVISED FEBRUARY 2006
4
www.ti.com
ELECTRICAL CHARACTERISTICS
TA = 0°C to 70°C for the UCC3817A and TA = −40°C to 85°C for the UCC2817A, TA = TJ, VCC = 12 V, RT = 22 kΩ,
CT = 270 pF, (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Over Voltage Protection and Enable Section
Over voltage reference
VREF
+0.48
VREF
+0.50
VREF
+0.52
V
Hysteresis
300
500
600
mV
Enable threshold
1.7
1.9
2.1
V
Enable hysteresis
0.1
0.2
0.3
V
Current Amplifier Section
Input offset voltage
VCM = 0 V,
VCAOUT = 3 V
−3.5
0
2.5
mV
Input bias current
VCM = 0 V,
VCAOUT = 3 V
−50
−100
nA
Input offset current
VCM = 0 V,
VCAOUT = 3 V
25
100
nA
Open loop gain
VCM = 0 V,
VCAOUT = 2 V to 5 V
90
dB
Common-mode rejection ratio
VCM = 0 V to 1.5 V,
VCAOUT = 3 V
60
80
dB
High-level output voltage
IL = −120 µA
5.6
6.5
6.8
V
Low-level output voltage
IL = 1 mA
0.1
0.2
0.5
V
Gain bandwidth product
(1)
2.5
MHz
Voltage Reference Section
Input voltage
TA = 0°C to 70°C
7.387
7.5
7.613
V
Input voltage
TA = −40°C to 85°C
7.369
7.5
7.631
V
Load regulation
IREF = 1 mA to 2 mA
0
10
mV
Line regulation
VCC = 10.8 V to 15 V(2)
0
10
mV
Short-circuit current
VREF = 0 V
−20
−25
−50
mA
Oscillator Section
Initial accuracy
TA = 25°C
85
100
115
kHz
Voltage stability
VCC = 10.8 V to 15 V
−1
1
%
Total variation
Line, temp
80
120
kHz
Ramp peak voltage
4.5
5
5.5
Ramp amplitude voltage
(peak to peak)
3.5
4
4.5
V
Peak Current Limit Section
PKLMT reference voltage
−15
15
mV
PKLMT propagation delay
150
350
500
ns
NOTES:
1. Ensured by design, not production tested.
2. Reference variation for VCC < 10.8 V is shown in Figure 8.


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