Optimized 120mA DC/DC Converter QAxx1 Series for IGBT Driver Applications
- MORNSUN POWER
- Oct 28
- 1 min read
The QAxx1 series comprises compact DC/DC converters engineered for IGBT, SiC, and GaN gate driver applications. These modules integrate driving IC functionality to deliver asymmetrical output voltage (+15V/-8.0VDC), minimizing driving power consumption while supporting 120mA output current for diverse IGBT power requirements
Key Features & Technical Specifications
High Efficiency & Performance
Efficiency up to 81%: Reduces energy loss and thermal stress
Ultra-low isolation capacitance: 6pF mitigates noise in high-frequency switching environments
Maximum capacitive load: 1000μF ensures stability in demanding circuits
Robust Design for Industrial Use
3000VAC isolation voltage: Enhances safety in high-voltage systems
Operating temperature: -40°C to +105°C for harsh environments
Ultra-miniature SIP package: Saves board space without compromising performance
Operational Flexibility
Supports no-load operation and 12V/15V/24VDC input voltages
Split-output topology: Enables independent control of turn-on/turn-off paths for optimized switching (reduces Miller effect risks in SiC MOSFETs)
Applications
Motor drivers: Industrial automation, traction inverters, servo systems
Power converters: Welding equipment, UPS systems, renewable energy inverters
Technical Parameters
Parameter | Value |
Output Voltage | +15V/-8.0VDC (asymmetrical) |
Output Current | 120mA (max) |
Isolation Voltage | 3000VAC |
Isolation Capacitance | 6pF |
Max Capacitive Load | 1000μF |
Efficiency | 81% (typical) |
Operating Temperature | -40°C to +105°C |
Model Availability
QA121: 12VDC input → +15V/-8.0VDC output
QA151: 15VDC input → +15V/-8.0VDC output
QA241: 24VDC input → +15V/-8.0VDC output