Datasheet
TPS65950
www.ti.com
SWCS032E–OCTOBER 2008–REVISED JANUARY 2011
Table 15-1. TPS65950 External Components (continued)
Function Component Reference Value Note Link
Range: 0.3 to 3.3 μF
VMIC2 Capacitor C
VMIC2.OUT
1 μF ESR minimum = 20 mΩ
ESR maximum = 600 mΩ
Capacitor C
SM
1 μF
Capacitor C
SM.P
100 nF
Silicon microphone Capacitor C
SM.M
100 nF Figure 6-24
Capacitor C
SM.PG
47 nF
Resistor R
SM
>500 Ω
Capacitor C
AUXL
100 nF
Auxiliary left
Capacitor C
AUXL.M
47 pF
Figure 6-25
Capacitor C
AUXR
100 nF
Auxiliary right
Capacitor C
AUXR.M
47 pF
LED Driver
Resistor R
LED.A
120 Ω Requirerd for each LED
Figure 10-1
Resistor R
LED.B
160 kΩ Requirerd for each LED
Battery Charger
ICTLAC1 Figure 8-1
Capacitor C
COMPAC
100 nF
Figure 8-2
Figure 8-1
Resistor R
SCOMPAC
51 Ω
Figure 8-2
Figure 8-1
FET T
AC
FDJ1027P Fairchild
Figure 8-2
Figure 8-1
Resistor R
LimitAC
700 kΩ
Figure 8-2
FET T
3
FDY100PZ Figure 8-2
Capacitor C
3
1 nF Figure 8-2
Resistor R
3
100 kΩ Figure 8-2
ICTLUSB1 Capacitor C
COMPUSB
100 nF
Resistor R
SCOMPUSB
51 Ω
Figure 8-1
FET T
USB
FDJ1027P Fairchild
Resistor R
LimitUSB
500 kΩ
VPRECH Capacitor C
PRECH
1 μF Figure 8-1
VCCS Resistor R
S
220 mΩ Figure 8-1
BCI AUTO <10 kΩ For more information, see
Resistor R
BCI.AUTO
Figure 8-3
>140 kΩ Table 8-2.
VBAT Capacitor C
CV
80 μF Figure 8-1
I
2
C Bus—External Pullup
I
2
C SmartReflex Resistor R
PSR.SDA
Pullups for various bus capacitances (C
L
) and I
2
C
speeds (standard, fast, and HS)
Resistor R
PSR.SCL
If C
L
= 10 pF: Standard = 118 kΩ, Fast = 35.4 kΩ, HS =
I
2
C control Resistor R
4.7 kΩ
If C
L
= 12 pF: Standard = 98.3 kΩ, Fast = 29.5 kΩ, HS
= 3.9 kΩ
If C
L
= 50 pF: Standard = 23.6 kΩ, Fast = 7.1 kΩ, HS =
940 Ω Section 13.3
If C
L
= 100 pF: Standard = 11.8 kΩ, Fast = 3.54 kΩ, HS
= 470 Ω
Resistor R
CNTL.SCL
If C
L
≤ 12 pF, there is no need for an external pullup;
the internal 3-kΩ pullup can be used.
If an external pullup is used, disable the internal 3-kΩ
pullup (reference the GPPUPDCTR1 register; see the
TRM).
Copyright © 2008–2011, Texas Instruments Incorporated External Components 159
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