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TPS542941PWP Datasheet(PDF) 4 Page - Texas Instruments

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Part # TPS542941PWP
Description  2A/3A Dual Channel Synchronous Step-Down Switcher with Integrated FET
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS542941PWP Datasheet(HTML) 4 Page - Texas Instruments

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TPS542941
SLVSBI3B – JULY 2012 – REVISED OCTOBER 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
(1) (continued)
over recommended free-air temperature range, VIN = 12 V (unless otherwise noted)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
POWER GOOD
PG from lower VOx (going high)
84%
VPGTH
PGx threshold
PG from higher VOx (going low)
116%
RPG
PGx pull-down resistance
VPGx = 0.5 V
50
75
110
Ω
Delay for PGx going high
1.5
ms
TPGDLY
PGx delay time
Delay for PGx going low
2
µs
TPGCOMPSS
PGx comparator start-up delay
PGx comparator wake-up delay
1.5
ms
UVLO
VREG5 rising
3.83
VUVREG5
VREG5 UVLO threshold
V
Hysteresis
0.6
LOGIC THRESHOLDs
VENH
ENx H-level threshold voltage
2.0
V
VENL
ENx L-level threshold voltage
0.4
V
RENx_IN
ENx input resistance
ENx = 12 V
225
450
900
k
Ω
CURRENT LIMITs
IOCL1
CH1 Current limit
LOUT1 = 2.2 µH
(3)
2.7
3.9
4.5
A
IOCL2
CH2 Current limit
LOUT2 = 1.5 µH
(3)
3.5
4.7
5.4
A
OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION (UVP, OVP)
VUVP
Output UVP trip threshold
measured on VFBx
63%
68%
73%
TUVPDEL
Output UVP delay time
1.5
ms
TUVPEN
Output UVP enable delay
1.5
ms
THERMAL SHUTDOWN
Shutdown temperature(3)
155
TSD
Thermal shutdown threshold
°C
Hysteresis(3)
25
(3)
Specified by design. Not production tested.
4
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Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: TPS542941


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