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TPS40021-EP Datasheet(PDF) 6 Page - Texas Instruments

No. de pieza TPS40021-EP
Descripción Electrónicos  ENHANCED, LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER
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TPS40021-EP Datasheet(HTML) 6 Page - Texas Instruments

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TPS40021-EP
SLUSB58 – SEPTEMBER 2012
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TJ = −55°C to 125°C, TJ = TA, VDD = 5.0 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SYNCHRONIZATION
Synchronization enable low
VENSY
0.7
V
threshold voltage
Synchronization current limit
VBLNK
Referenced to VDD
-0.7
V
enable threshold voltage
Minimum synchronization
tMIN
35
50
ns
input pulse width
PREDICTIVE DELAY
Sense voltage to modulate
VSWP
-200
mV
delay
Maximum delay modulation
LDRV OFF-to-HDRV ON
40
65
90
tLDHD
ns
Counter delay/bit time
LDRV OFF-to-HDRV ON
2.5
4.5
6.2
Maximum delay modulation
HDRV OFF-to-LDRV ON
80
tHDLD
ns
Counter delay/bit time
HDRV OFF-to-LDRV ON
5
RECTIFIER ZERO CURRENT COMPARATOR
tZBLNK
Zero current blanking time(4)
150
ns
(4)
Specified by design. Not production tested.
6
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Copyright © 2012, Texas Instruments Incorporated
Product Folder Links: TPS40021-EP


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