Microchip Technology Medical MEMS Micro Pump
Microchip Technology Medical MEMS Micro Pump Reference Design shows a unique implementation for cost-effective drug delivery devices. MEMS Piezoelectric Micro Pumps offer an attractive alternative to standard pumps that have traditionally been used in precision-controlled drug delivery devices. Microchip Technology MEMS Micro Pumps offer the benefits of being small, lightweight, low power, low cost, and accurate. Micro Pumps are now being used for applications such as transdermal insulin delivery, anti-thrombogenic blood transportation, injection of glucose for diabetes patients, administration of neurotransmitters to neurons, and chemical/biological sensing.
The MEMS Micro Pump Reference Design is based on the PIC16F1719 8-bit Microcontroller. The (MCU) features integrated Core Independent Peripherals (CIP). The integrated Core Independent Peripherals (CIP) on the PIC16F1719 MCU significantly offloads the MCU’s core in handling the control functions of the micro pump-based drug delivery device. These functions include providing power and adjustable voltage and frequency control signals to the high-voltage driver functions.
Microchip's MCUs with CIP are designed to handle tasks independently with no code or supervision from the MCU core during operation. Using CIP can shorten the development time of complex control systems, reduce the design’s component count, board size and power consumption, as well as give developers the flexibility to innovate.
Features
- PIC16F1719 MCU
- XLP (eXtreme Low Power) technology
- Numerically Controlled Oscillator (NCO), Configurable Logic Cell (CLC), Complementary Output Generator (COG) and Zero Cross Detect (ZCD), Core Independent Peripherals (CIP)
- Integrated capacitive touch sensing
- 28-channel 10-bit ADC
- 8-bit and 5-bit ADCs
- Integrated Operational Amplifiers
- Peripheral Pin Select
- Several packages available, including a small ultra-thin QFN (UQFN) package
- HV9150 Step-Up DC-DC Controller
- Wide 6V to 500V output voltage range
- Low 2.7V input voltage
- 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
- HV513 High-Voltage Push-Pull Driver
- Operating output voltage of 250V
- Low-power level shifting from 5V to 250V
- Shift register speed 8.0MHz at VDD = 5.0V
- Eight latch data outputs
- Output polarity and blanking
- Output short circuit detect
- Output High-Z control
- CMOS compatible inputs
- Reference Design
- Unique and effective implementation of a MEMS piezoelectric micropump driver function
- Cost-effective method for automated drug delivery devices
- Flow-controlled micropump can transfer liquid or gas with high accuracy and reliability
- OLED panel to display system information
- Easy adjustment of voltage and frequency for flow rate
- Powered by one 3.7V Li-Polymer rechargeable battery
Key Components
Microchip Technology Automotive 8-Bit Microcontrollers
PIC® and AVR® microcontrollers, offering solutions for every type of automotive system.
Microchip Technology MCP73xx Charge Management Controllers
Highly-integrated battery charge management controllers, ideal for space-limited applications.
Microchip Technology UNI/O™ Serial EEPROMs
Serial EEPROMs with a single I/O bus interface.
Microchip Technology MCP970x Linear Active Thermistor ICs
A family of analog temperature sensors that convert temperature to an analog voltage.
Block Diagram
Development Made Easy
Start with the free download of the application notes, schematics, and source code that can easily be modified to your specific application needs.
*Microchip medical reference designs and demos are intended for evaluation and development purposes only. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify, and hold harmless Microchip from any and all damages, claims, suits, and expenses resulting from such use.