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TPS53632RSMR Datasheet(PDF) 6 Page - Texas Instruments

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No. de pieza TPS53632RSMR
Descripción Electrónicos  3-2-1 Phase D-CAP??Step-Down Driverless Controller for Low-Voltage Applications with I2C Interface Control
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS53632RSMR Datasheet(HTML) 6 Page - Texas Instruments

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TPS53632
SLUSBW8 – SEPTEMBER 2014
www.ti.com
6.5 Electrical Characteristics
over recommended free-air temperature range, 4.5 V
≤ VV5A ≤ 5.5 V, 3.0 V ≤ VVDD ≤ 3.6 V, VGFB = GND, VVFB = VCORE (unless
otherwise noted).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
POWER SUPPLY: CURRENTS, UVLO AND POWER-ON-RESET
IV5-3P
V5A supply current
3-phase operation, VDAC < VVFB < (VDAC + 100 mV), EN = ‘HI’
3.6
6.0
3-phase operation, VDAC < VVFB < (VDAC + 100 mV), EN = ‘HI’,
IVDD-3P
VDD supply current
0.2
0.8
digital buses idle
mA
IV5-1P
V5A supply current
1-phase operation, VDAC < VVFB < (VDAC + 100 mV) , EN = ‘HI’
3.5
6.0
1-phase operation, VDAC < VVFB < (VDAC + 100 mV), EN = ‘HI’,
IVDD-1P
VDD supply current
0.2
0.8
digital buses idle
IV5STBY
V5A standby current
EN = ‘LO’
125
200
IVDDSTBY
VDD standby current
EN = ‘LO’
23
40
µA
IVDD-1P8
VINTF supply current
All conditions, digital buses idle
1.7
5.0
VVFB < 200 mV, Ramp up, VVDD > 3 V, EN = ’HI’, switching
VUVLOH
V5A UVLO ‘OK’ threshold
4.2
4.4
4.52
begins.
Ramp down, EN = ’HI’, VVDD > 3 V, VVFB = 100 mV, restart if 5-
VUVLOL
V5A UVLO fault threshold
V falls below VPOR then rises > VUVLOH, or EN is toggled w/ VV5A
4.00
4.2
4.35
> VUVLOH
Ramp down, EN = ‘HI’, VVDD > 3 V. Can restart if 5-V rises to
VPOR
V5A fault latch reset threshold
1.2
1.9
2.5
VUVLOH and no other faults present.
VVFB < 200 mV. Ramp up, VV5A > 4.5 V, EN = ’HI’, Switching
V3UVLOH
VDD UVLO ‘OK’ threshold
2.5
2.8
3.0
V
begins.
Ramp down, EN = ’HI’, V5A > 4.5V, VFB = 100 mV, restart if 5-
V3UVLOL
Fault threshold
V dips below VPOR then rises > VUVLOH or EN is toggled with 5 V
2.4
2.6
2.8
> VUVLOH
Ramp down, EN = ‘HI’, VV5A > 4.5 V, can restart if 5-V supply
VPOR
VDD fault latch
1.2
1.9
2.5
rises to VUVLOH and no other faults present.
VINTFUVLOH
VINTF UVLO OK
Ramp up, EN = ’HI’, VV5A > 4.5 V, VVFB = 100 mV
1.4
1.5
1.6
VINTFUVLOL
VINTF UVLO falling
Ramp down, EN = ’HI’, VV5A > 4.5 V, VVFB = 100 mV
1.3
1.4
1.5
REFERENCES: DAC, VREF, VFB DISCHARGE
VVIDSTP
VID step size
Change VID0 HI to LO to HI
10
VDAC1
VFB tolerance
No load active, 1.36 V
≤ VVFB ≤ 1.52 V, IOUT = 0 A
–9
9
mV
No load medium, 1.0 V
≤ VVFB ≤ 1.35 V, IOUT = 0 A
–8
8
VDAC2
VFB tolerance
No load medium, 0.5 V
≤ VVFB ≤ 0.99 V, IOUT = 0 A
-7
7
VVREF
VREF output
VREF output 4.5 V
≤ VV5A ≤ 5.5 V, IVREF = 0 A
1.66
1.700
1.74
V
VVREFSRC
VREF output source
0 A
≤ IREF ≤ 500 µA, HP-2
–4
-3
mV
VVREFSNK
VREF output sink
–500 A
≤ IREF ≤ 0 A, HP-2
3
4
VVBOOT
Internal VFB initial boot voltage
Initial DAC boot voltage
0.99
1.00
1.01
V
RAMP SETTINGS
RRAMP = 30 kΩ
60
RRAMP = 56 kΩ
120
VRAMP
Compensation ramp
mV
RRAMP = 100 kΩ
160
RRAMP ≥ 150 kΩ
40
VOLTAGE SENSE: VFB AND GFB
Not in fault, disable or UVLO, VVFB = VDAC = 1.5 V,
RVFB
VFB/GFB Input resistance
1
M
Ω
VGFB = 0 V, measure from VFB to GFB
VDELGND
GFB Differential
GND to GFB
±100
mV
CURRENT MONITOR
∑∆CS = 0 mV, AIMON = 3.867
00h
∑∆CS = 1.5 mV, AIMON = 3.867
19h
VALADC
IMON ADC output
∑∆CS = 7.5 mV, AIMON = 3.867
80h
∑∆CS = 15 mV, AIMON = 3.867
FFh
LRIMON
IMON linear range
Each phase, CSPx – CSNx
50
mV
6
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