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UC3907 Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza UC3907
Descripción Electrónicos  LOAD SHARE CONTROLLER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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UC3907 Datasheet(HTML) 4 Page - Texas Instruments

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UC1907, UC2907, UC3907
LOAD SHARE CONTROLLER
SLUS165C – MARCH 1999 - REVISED JANUARY 2002
4
www.ti.com
electrical characteristics, these specifications apply for TA = –55°C to 125°C for UC1907, –40°C to
85
°C for UC2907, and 0°C to 70°C for UC3907, VIN = 15 V, TA = TJ (unless otherwise stated )
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Current Amp Section
Gain
VCM = 0.0 V,
VID = 50 mV to 100 mV
19.2
19.6
20.1
V/V
O tp t oltage
VC/S (+) = VC/S (–) = 0.0 V, TA = 25°C
210
250
290
mV
Output voltage
VC/S (+) = VC/S (–) = 0.0 V, over temp
180
250
330
mV
Input offset change with common mode
input
VCM = 0 V to 13 V
600
µV/V
VOUT high
VID = 1 V
10
14.5
V
VOUT low
VID = – 1 V,
IL = 1 mA
350
450
mV
Power supply rejection ratio
VIN = 4.5 V to 35 V,
VCM = 0.0 V
60
dB
Slew rate
0.4
V/
µs
Drive Amp Section RSET = 500 Ω to Artificial GND, Opto Drive = 15 V
Voltage gain
COMP = 0.5 V to 1 V
2.3
2.5
2.6
V/V
ISET VOUT high
(+) SENSE = 2.2 V
3.8
4.1
4.4
V
ISET VOUT low
(+) SENSE = 1.8 V
270
300
mV
Opto out voltage range
4
35
V
Zero current input threshold
1.55
1.65
1.75
V
Buffer Amp Section
Input offset voltage
Input = 1 V
5
mV
Output off impedance
Input = 1 V,
output = 1.5 V to 2 V
5
10
20
k
Output source current
Input = 1 V,
output = 0.5 V
6
15
mA
Common mode rejection ratio
VCM = 0.3 V to 10 V
70
dB
Power supply rejection ratio
VIN = 4.5 V to 35 V
70
dB
Under Voltage Lockout Section
Startup threshold
3.7
4.4
V
Threshold hysteresis
200
mV
Status Indicate Section
VOUT low
ADJ OUT = current share bus
0.2
0.5
V
Output leakage
ADJ OUT = 1 V,
VOUT = 35 V
0.1
5
µA
Total Stand by Current Section
Startup current
VIN = UVLO – 0.2 V
3
5
mA
Operating current
VIN = 35 V
6
10
mA
NOTE 1: Unless otherwise specified all voltages are with respect to (–) SENSE. Currents are positive into, negative out of the specified terminal.
NOTE 2: Ensured by design. Not production tested.


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