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TPS40053PWPG4 датащи(PDF) 4 Page - Texas Instruments

номер детали TPS40053PWPG4
подробное описание детали  IDE-INPUT SYNCHRONOUS BUCK CONTROLLER
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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TPS40053PWPG4 датащи(HTML) 4 Page - Texas Instruments

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TPS40050
TPS40051
TPS40053
SLUS540F − DECEMBER 2002 − REVISED JUNE 2004
www.ti.com
4
ELECTRICAL CHARACTERISTICS
TA = −40°C to 85°C, VIN = 24 Vdc, RT = 90.9 kΩ, IKFF = 150 µA, fSW = 500 kHz, all parameters at zero power dissipation
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT LIMIT
ISINK
Current limit sink current
8.6
10.0
11.5
µA
Propagation delay to output
VILIM = 23.7 V, VSW = (VILIM − 0.5 V)
300
Propagation delay to output
VILIM = 23.7 V, VSW = (VILIM − 2 V)
200
ns
tON
Switch leading-edge blanking pulse time(1)
100
ns
tOFF
Off time during a fault
7
cycles
VILIM = 23.6 V,
TA = 25°C
−125
−30
VOS
Offset voltage SW vs. ILIM
VILIM = 23.6 V,
0
°C ≤ TA ≤ 85°C
−140
−75
−15
mV
VOS
Offset voltage SW vs. ILIM
VILIM = 23.6 V,
−40
°C ≤ TA ≤ 85°C
−140
10
mV
OUTPUT DRIVER
tLRISE
Low-side driver rise time
CLOAD = 2200 pF
48
96
tLFALL
Low-side driver fall time
CLOAD = 2200 pF
24
48
ns
tHRISE High-side driver rise time
CLOAD = 2200 pF, (HDRV − SW)
48
96
ns
tHFALL
High-side driver fall time
CLOAD = 2200 pF, (HDRV − SW)
36
72
VOH
High-level ouput voltage, HDRV
IHDRV = −0.1 A (HDRV − SW)
BOOST
−1.5 V
BOOST
−1.0 V
VOL
Low-level ouput voltage, HDRV
IHDRV = 0.1 A (HDRV − SW)
0.75
V
VOH
High-level ouput voltage, LDRV
ILDRV = −0.1 A
BP10
−1.4 V
BP10
− 1.0 V
V
VOL
Low-level ouput voltage, LDRV
ILDRV = 0.1 A
0.5
Minimum controllable pulse width
100
150
ns
SS/SD SHUTDOWN
VSD
Shutdown threshold voltage
Outputs off
90
125
150
mV
VEN
Device active threshold voltage
190
210
245
mV
BOOST REGULATOR
VBOOST Output voltage
VIN = 24.0 V
31.5
32.5
33.5
V
RECTIFIER ZERO CURRENT COMPARATOR (TPS40050/TPS40053 SS ONLY)
VSW
Switch voltage
LDRV output OFF
−5.5
−0.5
4.5
mV
SW NODE
ILEAK
Leakage current(1)
25
µA
THERMAL SHUTDOWN
TSD
Shutdown temperature(1)
165
°C
TSD
Hysteresis(1)
20
°C
UVLO
VUVLO KFF programmable threshold voltage
RKFF = 28.7 kΩ
6.9
7.5
7.9
V
(1)
Ensured by design. Not production tested.
(2)
IKFF increases with SYNC frequency, IKFF decreases with maximum duty cycle


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