Datasheet
Ferritecheapbead
Ferritecheapbead
VBAT.RIGHT
VIBRA.M
VIBRA.GND(LED.GND)
C
V.V
VIBRA.P
VBAT
Onboard
Chip
Vibrator
037-053
L
V.P
C
V.P
C
V.M
L
V.M
TPS65930/TPS65920
www.ti.com
SWCS037G–MAY 2008–REVISED APRIL 2011
NOTE
For other component values, see Table 14-1.
6.1.2 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.
6.1.2.1 Vibrator H-Bridge Output Characteristics
Table 6-2 lists the vibrator H-bridge output characteristics.
Table 6-2. 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
6.1.2.2 External Components and Application Schematics
Figure 6-3 is a simplified vibrator H-bridge schematic.
Figure 6-3. Vibrator H-Bridge
Copyright © 2008–2011, Texas Instruments Incorporated Audio/Voice Module (TPS65930 Device Only) 57
Submit Documentation Feedback
focus.ti.com: TPS65930/TPS65920