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TPS53624RHAR Datasheet(PDF) 3 Page - Texas Instruments

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Part # TPS53624RHAR
Description  Dual Phase, D-CAP, Eco-mode Step-Down Controller with 8-Bit DAC
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS53624RHAR Datasheet(HTML) 3 Page - Texas Instruments

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TPS53624
www.ti.com
SLUSB66 – MARCH 2013
ELECTRICAL CHARACTERISTICS
over recommended free-air temperature range, VV5FILT = VV5IN = 5.0 V, GFB = PGND = GND, VVFB = VOUT (unless otherwise
noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY: CURRENTS, UVLO AND POWER-ON RESET
IV5
V5IN + V5FILT supply current
VDAC < VVFB < VDAC + 100 mV, EN = HI
2.3
4
mA
IV5STBY
V5IN + V5FILT standby current
EN = LO
1
μA
VV5FILT = VV5IN, VVFB < 200 mV, Ramp up;
VUVLOH
V5FILT UVLO OK threshold
4.25
4.4
4.5
V
VEN = HI; Switching begins
VV5FILT = VV5IN. Ramp down; VEN = HI, VVFB = 100 mV,
VUVLOL
V5FILT UVLO fault threshold
Restart if 5 V falls below VPOR then rises > VUVLOH is
4
4.2
4.3
V
toggled with 5 V > VUVLOH
VV5FILT = VV5IN, Ramp Down, EN = HI, Can restart if 5-V
VPOR
V5FILT fault latch reset threshold
1.4
1.9
2.3
V
goes up to VUVLOH and no other faults present
REFERENCES: DAC, VREF, VBOOT AND DRVL DISCHARGE
VVIDSTP
VID step size
Change VID0 HI to LO to HI
6.25
mV
VDAC1
VFB no load active
0.750 V
≤ VVFB ≤ 1.250 V
-1.35%
1.35%
VDAC2
VFB no load active/sleep
0.500 V
≤ VVFB ≤ 0.750 V
–11
11
mV
VDAC3
VFB deeper sleep
0.300V
≤ VVFB ≤ 0.500 V
–14
14
mV
VDAC4
VFB above microcontroller VID
1.250 V
≤ VVFB ≤ 1.6 V
–1.35%
1.35%
VVREF
VREF output
4.5 V
≤ VV5FILT ≤ 5.5 V, IREF = 0
1.665
1.700
1.750
V
VVREFSRC
VREF output source
IREF = 0 μA to 250 μA
–9
–3
mV
VVREFSNK
VREF output sink
IREF = –250 μA to 0 μA
10
35
mV
VVBOOT
Internal VFB initial boot voltage
Initial DAC boot voltage
0.99
1.00
1.01
V
VOLTAGE SENSE: VFB AND GNDSNS
Not in fault, disable or UVLO;
IVFB
VFB input bias current
9
40
μA
VVFB = 2 V, GFB = 0 V
IVFBDQ
VFB input bias current, discharge
Fault, disable or UVLO, VVFB = 100 mV
90
125
175
μA
IGFB
GNDSNS input bias current
Not in fault, disable or UVLO; VVFB = 2 V, GSNS = 0 V
–40
–8
μA
VDELGND
GNDSNS differential
±300
mV
AGAINGND
GNDSNS/GND gain
0.995
1.000
1.011
V/V
VVFBCOM
VFB common mode input
–0.3
2
V
CURRENT MONITOR
VIMONLK
Zero-level current output
ΣΔCS = 0 mV, RIMON = 12.7 kΩ
0
5
150
mV
VIMONLO
Low-level current output
ΣΔCS = 10 mV, RIMON = 12.7 kΩ
202
250
302
mV
VIMINMID
Mid-level current output
ΣΔCS = 20 mV, RIMON = 12.7 kΩ
460
500
538
mV
VIMONHI
High-level current output
ΣΔCS = 40 mV, RIMON = 12.7 kΩ
958
1000
1058
mV
KIMON
Gain factor
2
μA/mV
IIMONSRC
Current monitor source
ΣΔCS = 60 mV
108
130
μA
VIMONSNK
Current monitor clamp
ΣΔCS = 40 mV, RIMON = OPEN
1.02
1.11
V
Copyright © 2013, Texas Instruments Incorporated
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