Datasheet

Ferrite chip bead
Ferrite chip bead
VBAT.RIGHT
VIBRA.M
VIBRA.GND (LED.GND)
C
V.V
VIBRA.P
VBAT
On board
Chip
Vibrator
032-026
L
V.P
C
V.P
C
V.M
L
V.M
TPS65950
SWCS032E–OCTOBER 2008–REVISED JANUARY 2011 www.ti.com
NOTE
For other component values, see Table 15-1.
6.1.6 Vibrator H-Bridge
A digital signal from the pulse width modulated generator is fed to the vibrator H-bridge driver. The vibrator
H-bridge is a differential driver that drives vibrator motors. The differential output allows dual rotation
directions.
6.1.6.1 Vibrator H-Bridge Output Characteristics
Table 6-9 lists the output characteristics of the vibrator H-bridge.
Table 6-9. Vibrator H-Bridge Output Characteristics
Parameter Test Conditions Min Typ Max Unit
VBAT voltage 2.8 3.6 4.8 V
Differential output swing (16-Ω load) VBAT = 2.8 V 3.6 V
PP
VBAT = 3.5 V 4.3
Output resistance (summed for both sides) 8 Ω
Load capacitance 100 pF
Load resistance 8 16 60 Ω
Load inductance 30 300 μH
Total harmonic distortion 10%
Operating frequency 20 10k Hz
6.1.6.2 External Components and Application Schematic
Figure 6-13 is a simplified schematic of the vibrator H-bridge.
Figure 6-13. Vibrator H-Bridge
78 Audio/Voice Module Copyright © 2008–2011, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Link(s): TPS65950