DA6250.007
13 April, 2018
Figure 9. Self-drive mode with 15V DC/DC output driving piezo in differential configuration by VDD on/off
control
Figure 10. Self-drive mode driving piezo and two series 10mA LEDs by DIN and CTRL controls
Normally the PS pin is connected to VIN. In case the VOUT voltage is below 7V the PS pin should be connected
GND for best efficiency. For example when driving only one or two 3V LEDs the PS pin should be connected to
GND. See figure 10.
10 (24)