Infineon Technologies IR21531 Half-Bridge Driver
Infineon Technologies IR21531 Half-Bridge Driver has a shutdown feature designed into the CT pin, allowing gate driver outputs to be disabled using low voltage control signals. This half-bridge driver achieves improved noise immunity by lowering the peak di/dt of the gate drivers and by increasing undervoltage lockout hysteresis to 1V. The IR21531 half-bridge driver features true micropower startup, tighter initial deadtime control, low-temperature coefficient dead, and excellent latch immunity on all inputs and outputs. This half-bridge driver offers Electrostatic Discharge (ESD) protection on all leads, a lower di/dt gate driver for better noise immunity, and low side output in phase with RT. The IR21531 half-bridge driver is ideal for the primary side and lighting fluorescent ballast.Features
- Integrated 600V half-bridge gate driver
- 15.6V Zener clamp on Vcc
- True micropower startup
- Tighter initial deadtime control
- Low-temperature coefficient deadtime
- Shutdown feature (1/6th Vcc) on CT pin
- Increased undervoltage lockout hysteresis (1V)
- Lower power level-shifting circuit
- Constant LO, HO pulse widths at startup
- Lower di/dt gate driver for better noise immunity
- Low side output in phase with RT
- Internal 50ns (typical) bootstrap diode (IR21531D)
- Excellent latch immunity on all inputs and outputs
- ESD protection on all leads
- LEAD-free also available
Applications
- Lighting fluorescent ballast
- Primary side
RT Vs Frequency
Block Diagram
Paskelbta: 2020-09-01
| Atnaujinta: 2024-11-22
