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TPS51513RHBT Datasheet(PDF) 3 Page - Texas Instruments

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Part No. TPS51513RHBT
Description  SINGLE PHASE, D-CAP SYNCHRONOUS BUCK CONTROLLER
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS51513RHBT Datasheet(HTML) 3 Page - Texas Instruments

 
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TPS51513
www.ti.com
SLUS956A – JUNE 2009 – REVISED FEBRUARY 2010
ELECTRICAL CHARACTERISTICS
over recommended free-air temperature range, V5IN = V5FILT = 5.0V, GSNS = PGND = GND, VSNS = VCORE (Unless
otherwise noted).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY: CURRENTS, UVLO AND POWER-ON RESET
IV5
V5IN + V5FILT supply current
VDAC < VSNS < VDAC + 100 mV, EN = ‘HI’
2
4
mA
IV5STBY
V5IN + V5FILT standby current
EN = ‘LO’
10
mA
V5FILT = V5IN, VSNS < 200 mV, Ramp up;
VUVLOH
V5FILT UVLO ‘OK’ threshold
4.25
4.4
4.5
V
EN=’HI’; Switching begins.
V5FILT = V5IN, Ramp down; EN = ’HI’, VSNS =
100 mV, Restart if 5 V dips below VPOR then
VUVLOL
V5FILT UVLO fault threshold
4.0
4.2
4.3
V
rises > VUVLOH, or EN is toggled with 5 V >
VUVLOH
V5FILT=V5IN, Ramp Down, EN=‘HI’. Can
VPOR
V5FILT fault latch reset threshold restart if 5 V goes up to VUVLOH and no other
1.6
1.9
2.3
V
faults present.
REFERENCES: DAC, VREF, VBOOT AND DRVL DISCHARGE
VVIDSTP
VID step size
Change VID0 HI to LO to HI
12.5
mV
VDAC1
VSNS voltage range 1
0.75 V
≤ VSNS ≤ 1.25 V
–0.5%
0.5%
VDAC2
VSNS no voltage range 2
0.50V
≤ VSNS ≤ 0.75 V
–8
8
mV
VDAC3
VSNS voltage range 3
0.30V
≤ VSNS ≤ 0.50 V
–12
12
mV
VDAC4
VSNS voltage range 4
1.25V
≤ VSNS ≤ 1.50 V
–1%
1%
VVREF
VREF output voltage
4.5V
≤ V5FILT ≤ 5.5 V, IREF = 0 A
1.665
1.700
1.735
V
VVREFSRC
VREF output source
IREF = 0 to 250 mA
–9
–3
mV
VVREFSNK
VREF output sink
IREF = –250 mA to 0 mA
10
39
mV
VDLDQDRVL
Discharge threshold
VSNS < 200 mV, DRVL goes high for 1 ms
200
250
325
mV
VOLTAGE SENSE: VSNS AND GSNS
IVSNS
VSNS input bias current
Not in Fault, Disable or UVLO
9
40
mA
VSNS input bias current,
IVSNSDQ
Fault, Disable or UVLO, VSNS = 100 mV
90
125
175
mA
discharge
IGSNS
GSNS input bias current
–40
–8
mA
VDELGND
GSNS differential
±300
mV
AGAINGND
GSNS/GND gain
0.993
1
1.009
V/V
VVSNSCOM
VSNS common mode dnput
–0.3
2
V
Copyright © 2009–2010, Texas Instruments Incorporated
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