Datasheet

TPS53114
SLVS887B –APRIL 2009–REVISED OCTOBER 2010 www.ti.com
RECOMMENDED OPERATING CONDITIONS
MIN MAX UNIT
VIN 4.5 24
Supply input voltage range V
V5FILT 4.5 5.5
VBST –0.1 30
VBST - SW –0.1 5.5
Input voltage range VFB, VO, FSEL, CER –0.1 5.5 V
TRIP –0.1 0.3
EN –0.1 24
DRVH –0.1 30
VBST - SW –0.1 5.5
Output Voltage range SW 1.8 24 V
DRVL, VREG5, SS –0.1 5.5
PGND –0.1 0.1
T
A
Operating free-air temperature –40 85 °C
T
J
Operating junction temperature –40 125 °C
ELECTRICAL CHARACTERISTICS
over recommended free-air temperature range, VIN = 12 V (unless otherwise noted)
PARAMETER CONDITIONS MIN TYP MAX UNIT
SUPPLY CURRENT
VIN current, T
A
= 25°C, VREG5 tied to V5FLT, EN = 350 600
I
IN
VIN supply current mA
5V, VFB = 0.8V, SW = 0.5V
I
VINSDN
VIN shutdown current VIN current, T
A
= 25°C, No Load , EN = 0V, VREG5 28 60 mA
= ON
VFB VOLTAGE and DISCHARGE RESISTANCE
V
BG
Bandgap Initial regulation accuracy T
A
= 25°C –1.0 1.0 %
T
A
= 25°C , FSEL = 0 V, CER = V5FILT 755 765 775
V
VFBTHL
VFB threshold voltage mV
T
A
= –40°C to 85°C, FSEL = 0V, CER = V5FILT 752 778
T
A
= 25°C , FSEL = CER = V5FILT 748 758 768
V
VFBTHH
VFB threshold voltage mV
T
A
= –40°C to 85°C, FSEL = CER = V5FILT 745 771
I
VFB
VFB Input Current VFB = 0.8V, T
A
= 25°C –100 –10 100 nA
R
Dischg
Vo Discharge Resistance EN = 0V, VO = 0.5V, T
A
= 25°C 40 80 Ω
VREG5 OUTPUT
V
VREG5
VREG5 Output Voltage T
A
=25°C, 5.5V < VIN < 24V, 0 < I
VREG5
< 10mA 4.8 5.0 5.2 V
V
LN5
Line regulation 5.5V < VIN < 24V, I
VREG5
= 10mA 20 mV
V
LD5
Load regulation 1mA < I
VREG5
< 10mA 40 mV
I
VREG5
Output current VIN = 5.5V, V
VREG5
= 4.0V, T
A
= 25°C 170 mA
OUTPUT: N-CHANNEL MOSFET GATE DRIVERS
Source, I
DRVH
= –100mA 5.5 11
R
DRVH
DRVH resistance Ω
Sink, I
DRVH
= 100mA 2.5 5
Source, I
DRVL
= –100mA 4 8
R
DRVL
DRVL resistance Ω
Sink, I
DRVL
= 100mA 2 4
DRVH-low to DRVL-on 20 50 80
T
D
Dead time ns
DRVL-low to DRVH-on 20 40 80
INTERNAL BST DIODE
V
FBST
Forward Voltage V
VREG5-VBST
, IF = 10mA, T
A
= 25°C 0.7 0.8 0.9 V
I
VBSTLK
VBST Leakage Current VBST = 29V, SW = 24V, T
A
= 25°C 0.1 1 mA
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