DN1157 Electronic Cigarette (eCig) Design Note

PublishTime：2022-06-29

The electronic cigarette (eCig) industry has grown dramatically over the last few years and the growth is expected to continue. Higher power eCigs require voltage and current control from an MCU and power switching using MOSFETs and gate drivers. In an eCig driver, the voltage may need to be stepped up (boost) or stepped down (buck). Figure 1 shows a typical boost arrangement that may be used in an eCig. When step up is needed, the MCU applies PWM to the boost circuit (Figure 1, to IN of the DGD2104A) and the output voltage (to buck) is higher than the battery voltage. When step down is needed, the Q1 is on 100% duty cycle providing the battery voltage to the buck (not shown) and the MCU provides PWM to the buck.

Brand of Product：	DIODES
Part#：
Product Category：	Electronic Cigarette More
Application：	More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	January 2016
Version Number：	Rev 1
Data Encoding：	DN1157
Data Size：	315 KB

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