DA6250.007

13 April, 2018

10 (24)

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.