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UC3714 датащи(PDF) 3 Page - Texas Instruments

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номер детали UC3714
подробное описание детали  Complementary Switch FET Drivers
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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UC3714 датащи(HTML) 3 Page - Texas Instruments

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UC1714/5
UC2714/5
UC3714/5
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, VCC = 15V, ENBL ≥ 2V, RT1 = 100kΩ from T1 to GND,
RT2 = 100kΩ from T2 to GND, and −55°C < TA < 125°C for the UC1714/5, −40°C < TA < 85°C for the UC2714/5, and 0°C < TA <
70
°C for the UC3714/5, TA = TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Auxiliary Driver (AUX)
AUX Output Low, Sat
(VAUX)
VIN = 2.0V, IOUT = 20mA
0.3
0.8
V
VIN = 2.0V, IOUT = 200mA
1.8
2.6
V
AUX Output High, Sat (VCC – VAUX)VIN = 0.8V, IOUT = -10mA
2.1
3.0
V
VIN = 0.8V, IOUT = -100mA
2.3
3.0
V
Rise Time
CL = 1000pF
45
60
ns
Fall Time
CL = 1000pF
30
60
ns
T2 Delay, PWR to AUX
INPUT falling edge, RT2 = 10kΩ (Note 4)
20
50
80
ns
T2 Delay, PWR to AUX
INPUT falling edge, RT2 = 100kΩ (Note 4)
250
350
550
ns
AUX Prop Delay
INPUT rising edge, 50% (Note 3)
35
80
ns
Enable (ENBL)
Input Threshold
0.8
1.2
2.0
V
Input Current, IIH
ENBL = 15V
1
10
µA
Input Current, IIL
ENBL = 0V
−1
−10
µA
T1
Current Limit
T1 = 0V
−1.6
−2mA
Nominal Voltage at T1
2.7
3
3.3
V
Minimum T1 Delay
T1 = 2.5V, (Note 4)
40
70
ns
T2
Current Limit
T2 = 0V
−1.2
−2mA
Nominal Voltage at T2
2.7
3
3.3
V
Minumum T2 Delay
T2 = 2.5V, (Note 4)
50
100
ns
Input (INPUT)
Input Threshold
0.8
1.4
2.0
V
Input Current, IIH
INPUT = 15V
1
10
µA
Input Current, IIL
INPUT = 0V
5
−20
µA
Note 3: Propagation delay times are measured from the 50% point of the input signal to the 10% point of the output signal’s transi-
tion with no load on outputs.
Note 4: T1 delay is defined from the 50% point of the transition edge of AUX to the 10% of the rising edge of PWR. T2 delay is de-
fined from the 90% of the falling edge of PWR to the 50% point of the transition edge of AUX.
PIN DESCRIPTIONS
AUX: The AUX switches immediately at INPUT’s rising
edge but waits through the T2 delay after INPUT’s falling
edge before switching. AUX is capable of sourcing 0.5A
and sinking 1.0A of drive current. See the Time Relation-
ships diagram below for the difference between the
UC1714 and UC1715 for INPUT, MAIN, and AUX. During
sleep mode, AUX is inactive with a high impedance.
ENBL: The ENBL input switches at TTL logic levels (ap-
proximately 1.2V), and its input range is from 0V to 20V.
The ENBL input will place the device into sleep mode
when it is a logical low. The current into VCC during the
sleep mode is typically 220
µA.
GND: This is the reference pin for all input voltages and
the return point for all device currents. It carries the full
peak sinking current from the outputs. Any tendency for
the outputs to ring below GND voltage must be damped
or clamped such that GND remains the most negative
potential.


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