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IC-Hersteller Microchip

IC-Hersteller (79)

Microchip HV9150

Piezoelectric Micropump Driver Reference Design

Details

Topologie Aufwärtswandler
Eingangsspannung 3.7 V
Schaltfrequenz 40-400 kHz
Ausgang 1 250 V / 0.01 A

Beschreibung

In medical devices for precision controlled drugdelivery, such as infusion pumps, insulin pumps or nebulizers, piezoelectric micropumps offer anattractive alternative to standard pumps. Piezoelectric micropumps are small, lightweight, low power, low cost, and accurate. This application note describes the implementation of a basic driver circuit for driving a piezoelectricmicropump with flow control in an example of fluid delivery. The described system includes a control board, a high voltage driver board, and an mp6 Piezoelectric Diaphragm Micropump.

Eigenschaften

  • Wide output voltage range: 6V to 500V
  • Low input voltage: 2.7V
  • 5W maximum output power with external MOSFET driver
  • Built-in charge pump converter for the gate driver
  • Programmable switching frequency from 40kHz to 400kHz
  • Four programmable duty cycles from 50% to 87.5%
  • FB return ground switch for power savings applications
  • Built-in delay timer for internal protection
  • Non-isolated DC/DC converter
  • Processed with HVCMOS® technology

Typische Anwendungen

  • Printers
  • Portable Electronic Equipment
  • MEMS

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster
74437324068
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-LHMI SMT Speicherdrossel 6.8 1.75 3.5 150 172 29 SMT
Artikel Nr. Daten­blatt
74437324068
Muster
Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster