A regulated multiple-output high-voltage charge pump IC for implantable neural stimulators. (October 2019)

• Record Type: Journal Article
• Authors: Abdi, Alfian; Cha, Hyouk-Kyu
• Is Part Of: Microelectronics journal. Volume 92(2019)
• Publication Date: 2019-10
• Subjects: Charge pump IC -- Single-input multiple-output -- Voltage regulation -- Neural stimulation; Microelectronics -- Periodicals; Microélectronique -- Périodiques; Microelectronics; Electronic journals; Journals - contents and abstracts; Periodicals; 621.3805
• DOI: 10.1016/j.mejo.2019.104617
• Languages: English
• ISSNs: 0959-8324

Abstract

Abstract: In this paper, a single-input multiple-output high-voltage charge pump integrated circuit (IC) for neural stimulation applications is presented. The proposed circuit, implemented using 0.18-μm standard low-voltage CMOS process, reliably generates three high-voltage outputs of 12.8 V, 9.6 V, and 6.4 V from a single 2.8 V-input source while regulating the output with load current up to 1 mA. In addition, an input voltage modulated regulation scheme is employed for good efficiency and regulation performance. The designed IC, which includes three charge pump cores and regulation circuits, occupies 0.8 mm 2 of core die area.