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UCC2806 Datasheet(PDF) 3 Page - Texas Instruments

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Part # UCC2806
Description  Low Power, Dual Output, Current Mode PWM Controller
PDF  7 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

UCC2806 Datasheet(HTML) 3 Page - Texas Instruments

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3
UCC1806
UCC2806
UCC3806
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications hold for TA = –55°C to +125°C for the
UCC1806,
−40°C to +85°C for the UCC2806, and 0°C to +70°C for the UCC3806; VIN = 12V, RT = 33k, CT = 330pF,
CBYPASS on VREF = 0.01µF, TA =TJ.
PARAMETER
TEST CONDITION
UCC1806 / UCC2806
UCC3806
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
Oscillator Section
Initial Accuracy
TJ = 25°C
424752424752
kHz
Temperature Stability
TMIN < TA <TMAX (Note 5)
2
2
%
Amplitude
2.35
2.35
V
SYNC Delay to Outputs
Pin 8 = 0V, Pin 9 = VREF,
VSYNC = 0.8V to 2.0V
50
125
50
100
ns
Discharge Current
TJ = 25°C, VPIN 8 = 2.0V
2
2
mA
SYNC, VOL
IOUT = +1mA
0.4
0.4
V
SYNC, VOH
IOUT = –4mA
2.4
2.4
V
SYNC, VIL
Pin 8 = 0V, Pin 9 = VREF
0.8
0.8
V
SYNC, VIH
Pin 8 = 0V, Pin 9 = VREF
2.0
2.0
V
SYNC Input Current
−1+1
−1+1
µA
Error Amplifier Section
Input Offset Voltage
5
10
mV
Input Bias Current
−1
−1
µA
Input Offset Current
500
500
nA
Common Mode Range
0
VIN-2
0
VIN
−2V
Open Loop Gain
VO = 1.0 to 4.0
80
100
80
100
dB
Unity Gain Bandwidth
1
1
MHz
Output Sink Current
VID < –20mV, VPIN 7 = 1.0V
1
1
mA
Output Source Current
VID < 20mV, VPIN 7 = 3.0V
−80
−120
−80
−120
µA
Output High Level
VID = –50mV
4.5
4.5
V
Output Low Level
VID = –50mV
0.5
0.5
V
Current Sense Amplifier Section
Amplifier Gain
VPIN 3 = 0V, VPIN 1 =VREF (Notes 3,4)
2.75
3
3.35
2.75
3
3.35
V/V
Maximum Differential Input
Signal (VPIN 4 -VPIN 3)
VPIN 1 =VREF,VPIN 5 =VREF,
VPIN 6 = 0V
1.1
1.1
V
Input Offset Voltage
VPIN 1 = 0.5V, VPIN 7 = OPEN
10
30
10
50
mV
CMRR
VCM = 0 to VIN – 3.5
60
60
dB
PSRR
56
56
dB
Input Bias Current
VPIN 1 = 0.5V, PIN 7 OPEN (Note 3)
−1
−1
µA
Input Offset Current
VPIN 1 = 0.5V, PIN 7 OPEN (Note 3)
1
1
µA
Delay to Outputs
VPIN 5 =VREF, PIN 6 = 0, PIN 1 = 2.75V,
PIN 4 – PIN 3 = 0 to 1.5V step (Note 6)
125
175
125
175
ns
Current Limit Adjust Section
Current Limit Offset
VPIN 3 = 0, VPIN 4 = 0, PIN 7 = open
0.40
0.50
0.60
0.40
0.50
0.60
V
Input Bias Current
11
µA
Minimum Latching Current
300
200
300
200
µA
Maximum Non-Latching
Current
200
80
200
80
µA
Shutdown Terminal Section
Threshold Voltage
0.94
1.00
1.06
0.9
1.0
1.1
V
Input Voltage Range
0
VIN
0VIN
V
Delay to Outputs
VPIN 16 = 0 to 1.3V
75
150
75
150
ns



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