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UC2914DWG4 датащи(PDF) 3 Page - Texas Instruments

номер детали UC2914DWG4
подробное описание детали  5-V TO 35-V HOT SWAP POWER MANAGER
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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UC2914DWG4 датащи(HTML) 3 Page - Texas Instruments

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UC2914
UC3914
SLUS425C − DECEMBER 2003 − REVISED JULY 2004
3
www.ti.com
ELECTRICAL CHARACTERISTICS
TA = 0°C to 70°C for the UC3914, −40°C to 85°C for the UC2914, VCC = 12V, VPUMP = VPUMP(max), SD = 5 V, CP1 = CP2 = CPUMP= 0.01 µF.
TA = TJ. (Unless otherwise specified)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENTS
ICC
Supply current(2)
8
15
mA
ICC
Supply current(2)
VCC = 35 V
12
20
mA
ICCSD
Shutdown supply current
SD = 0 V,
500
900
µA
UVLO turn−on threshold voltage
4.0
4.4
V
UVLO hysteresis
55
120
250
mV
FAULT TIMING
Overcurrent threshold
TJ = 25°C, wrt VCC
−55
−50
−45
mV
Overcurrent threshold
Over operating temperature wrt VCC
−57
−50
−42
mV
IMAX input bias
1
3
A
ICT_CHG CT charge current
VCT = 1 V
−140
−100
−60
µA
ICT_CHG CT charge current
VCT = 1 V,
overload condition
−6.0
−3.0
−1.5
mA
ICT_DSCH CT discharge current
VCT = 1 V
2.0
3.0
4.5
µA
VCT_FLT CT fault threshold voltage
2.25
2.50
2.75
V
VCT_RST CT reset threshold voltage
0.45
0.50
0.55
V
Output duty cycle
Fault condition,
IPL = 0 A
1.5%
3.0%
4.5%
OUTPUT
VOH
High-level output voltage
VVOUTS = VCC,
VPUMP = VPUMP(max),
wrt VPUMP
−1.5
−1.0
VOH
High-level output voltage
VVOUTS = VCC,
VPUMP = VPUMP(max),
IOUT = −2 mA, wrt VPUMP
−2.0
−1.5
IOUT = 0 A
0.8
1.3
V
VOL
Low-level output voltage
IOUT = 5 mA
1
2
V
VOL
Low-level output voltage
IOUT = 25 mA,
VVOUTS = 0 V
overload condition
1.2
1.8
VOUT(cl) Output clamp voltage
VOUTS = 0 V
11.5
13.0
14.5
tRISE
Rise time(1)
COUT = 1 nF
750
1250
ns
tFALL
Fall time(1)
COUT = 1 nF
250
500
ns
LINEAR CURRENT AMPLIFIER
VIO
Input offset voltage
−15
0
15
mV
Voltage gain
60
80
dB
VIMAX
IMAX control voltage
VIMAX = VOUT,
VSENSE = VVCC, wrt VCC
−20
0
20
mV
VIMAX
IMAX control voltage
VIMAX = VOUT,
VSENSE = VREF, wrt REF
−20
0
20
mV
SENSE input bias
1.5
3.5
µA
SHUTDOWN
Shutdown threshold voltage
0.6
1.5
2.0
V
input current
SD = 5 V
150
300
µA
Delay to output time(1)
0.5
2.0
µs
(1) Ensured by design. Not production tested.
(2) A mathematical averaging is used to determine this value. See Application Section for more information.


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