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TPS65721 Datasheet(PDF) 3 Page - Texas Instruments

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Part # TPS65721
Description  PMU for Bluetooth Headsets
PDF  50 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65721 Datasheet(HTML) 3 Page - Texas Instruments

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TPS65720
TPS65721
www.ti.com
SLVS979 – OCTOBER 2009
RECOMMENDED OPERATING CONDITIONS (continued)
MIN
NOM
MAX
UNIT
CINAC
Input capacitor at AC(1)
0.1
1
μF
CBAT
Capacitor at BAT(1)
0.1
4.7
μF
CSYS
Capacitor at SYS(1)
4.7
10
μF
CINDCDC1
Input capacitor at VINDCDC1
(1); if connected to SYS, only one 4.7μF cap required for
4.7
μF
SYS and CINDCDC1
COUTDCDC1
Output capacitor at VDCDC1
(1)
4.7
10
22
μF
CINLDO1
Input capacitor at VINLDO1(1)
2.2
μF
COUTLDO1
Output capacitor at LDO1(1)
2.2
μF
RISET
Minimum RISET value for proper operation; lower values may trigger the short circuit
700
Ω
protection on ISET
TA
Operating ambient temperature
–40
85
°C
TJ
Operating junction temperature
–40
125
°C
ELECTRICAL CHARACTERISTICS
VSYS = 3.6V, VDCDC1 = 2.05V, PFM mode, L = 3.3μH, COUTDCDC1 = 4.7μF, VINLDO1=2.05V, VLDO1=1.85V, TA = –40°C to 85°C
typical values apply in a temperature range of 10°C to 35°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
DCDC1 enabled, IOUT = 0mA. PFM mode enabled; device not
36
45
μA
Operating quiescent current when only DCDC1
switching
IQ
converter is enabled
DCDC1 enabled, IOUT = 0mA. PWM mode
2.8
mA
Current into BAT pin (PFM mode)
33
50
μA
Operating quiescent current when LDO1 and
IQ
DCDC1 are enabled
Current into VINLDO1
13
18
μA
Shutdown current after voltage was applied to BAT
For VINLDO1=0V (LDO1 supplied by DCDC1); powered by
4
13
μA
but device never enabled before (shipping mode)
VBAT=3.6V
For VINLDO1=0V (LDO1 supplied by DCDC1); powered by
ISD
Shutdown current after first power-up
12
17
μA
VBAT=3.6V
For VINLDO1
≠0V (LDO1 supplied by SYS); powered by
Shutdown current after first power-up
12
18
μA
VBAT=3.6V
Copyright © 2009, Texas Instruments Incorporated
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Product Folder Link(s): TPS65720 TPS65721



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