New Product Introduction

ON Semiconductor Medical Ventilator Solution

In response to COVID-19, ON Semiconductor has developed a Block Diagram of a Medical Ventilator, looking at the various systems used in medical ventilators.

Medical Ventilator

The block diagram provides a targeted list of relevant ON semiconductor devices and provides an overall understanding of the solution.

Complexity can differ greatly but common variables in a medical ventilator system are:

  • The measurement of oxygen the ventilator is delivering during inspiration (or phase)
  • Respiration rate per minute 
  • Tidal volume, which is the volume of each breath delivered
  • Sensitivity, or how much inspiratory or trigger effort is required from the ventilator to recognize a patient's attempt at inhalation. A trigger would prevent a ‘mechanical breath’, or a breath initiated by the ventilator
  • Peak flow, or the flow of breaths

ON Semiconductor's team of experts has worked diligently to provide a high-level system architecture for medical ventilators. Let’s dive into the many capabilities our components can offer these life-saving devices.

Medical Ventilator Core Solution - Block diagram

The architecture shown above is able to control one high-performance BLDC Air Pump (or more with the multiples of the same BLDC drivers), which is the "heart" of every medical ventilator. Each valve drive module implemented into the end customer application device can drive up to six valves simultaneously, even if only three valve types are displayed in the customer's proposal. 

 

Products
Isolated Power Supply Unit- PFC Stage
NCP1654BD133R2G Power Factor Correction Controller for Compact and Robust, Continuous Conduction Mode Pre-Converters
FCPF250N65S3R0L Power MOSFET, N-Channel, SUPERFET® III, Easy Drive, 650 V, 12 A, 250 mΩ, TO-220F
Isolated Power Supply Unit - Resonant Half-Bridge LLC Converter Stage
NCP1399AADR2G Current Mode Resonant Controller (Integrated High Voltage Drivers, High Performance)
NCP4306DAHZZAASNT1G Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies
FCD260N65S3 Power MOSFET, N-Channel, SUPERFET® III, Easy Drive, 650 V, 12 A, 260 mΩ, DPAK
FCP360N65S3R0 Power MOSFET, N-Channel, SUPERFET® III, Easy Drive, 650 V, 10 A, 360 mΩ, TO-220
NTMFS6H848NLT1G Power MOSFET, Single N-Channel, 80V, 59A, 8.8 mOhm
Power Management
NCP6922CDMTTXG LDO Regulator, Dual, 4-Channel PMIC, Dual DC-DC Converters
Battery Management
FDN028N20 N-Channel PowerTrench® MOSFET 20V, 6.1A, 28mΩ
Valve Drive Module
NVMFS5C442NLAFT1G Single N-Channel Power MOSFET 40V, 130A, 2.5mΩ
NVMFS5C468NLAFT1G Single N-Channel Power MOSFET 40V, 37A, 10.3mΩ
NVMFD5C680NLWFT1G Dual N−Channel Power MOSFET 60V, 26A, 28mΩ
BDLC Drive Module
LV8968BBUWR2G Multi-purpose BLDC Pre-driver, For Automotive
LCD Display & Touchscreen
NSI50150ADT4G LED Driver, Adjustable Constant Current Regulator, 50 V, 150 - 350 mA
LC717A10AR-NH Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors
ESD7104MUTAG ESD Protection, Low Capacitance, High Speed Data
MCU and Processing
N01S830BAT22IT Serial SRAM Memory, 1 Mb, Ultra-Low-Power, 2.5 to 5.5 V, TSSOP-8 (Industrial) 3000 Units/ Tape & Reel
FPF1048BUCX IntelliMAX™ 3A-Capable, Slew-Rate-Controlled Load Switch with True Reverse Current Blocking
NCS2003SN2T1G Operational Amplifier, High Slew Rate, Low Voltage, Rail-to-Rail Output
NCS333ASQ3T2G Low Power, Zero-Drift Operational Amplifier with 10 µV Offset
NCD98010XMXTAG 12-Bit Low Power SAR ADC Unsigned Output
FOD8012A High CMR, Bi-Directional, Logic Gate Optocoupler
FS7140-02G-XTP I2C Programmable 1-PLL Clock
ESD8472MUT5G Ultra-Low Capacitance RF ESD Protection
FAN3852UC16X Microphone Pre-Amplifier with Digital Output

 

Design resources

Products Description      
NCP1654 Power Factor Correction Controller for Compact and Robust, Continuous Conduction Mode Pre-Converters Evaluation Boards Application Notes Reference Design
NCP1396 Controller, High Performance Resonant Mode, with High and Low Side Drivers   Application Notes Reference Design
NCP4306 Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies Evaluation Boards    
LV8968BBUWR2G Multi-purpose BLDC Pre-driver, For Automotive Evaluation Boards    
FPF1048 IntelliMAX™ 3A-Capable, Slew-Rate-Controlled Load Switch with True Reverse Current Blocking   Application Notes  
RSL10 SoC/SIP Radio SoC/SIP, Bluetooth® 5 Certified Evaluation Boards Evaluation Boards  
FAN3852 Microphone Pre-Amplifier with Digital Output   Application Notes  
FOD8012A High CMR, Bi-Directional, Logic Gate Optocoupler Evaluation Boards    
LC717A10AR Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors Evaluation Boards Evaluation Boards