International Rectifier IR1110
The IR1110 is a high performance analog IC designed to control ramp rate and voltage of the DC bus from either single or three phase AC line voltage input. It controls a SCR half bridge and provides robust ride through capability in event of transient loss of line, and DC bus regulation with eternal reference input. The IR1110 is based on advanced low power design so it can utilize the SCR snubber derived power supply.| Part No. | IR1110 |
|---|---|
| Datasheet | IR1110 Download |
| Manufacturer |  International Rectifier |
| Description | SOFT START CONTROLLER |
| Buy | Stock & Price |
FEATURES
Product Summary VDDS/VSS ISS/IDD DC bus registration response time +/- 5V +/- 5mA 100msec (typ.)● Self-contained soft charging of DC bus capacitor
● DC bus voltage regulation
● 3-phase or 1-phase AC input
● Applicable to 115/230/380/460/575V AC input
● Drives SCR phase controlled half bridge
● Programmable ramp rate
● Protection against DC bus short circuit
● Fast power dip ride through with automatic ramp back
● Selectable shutdown on single phase loss
● 1-phase and 3-phase loss fault output
● Insensitive to phase rotation
● High line or low line fault output
● Low power consumption
● Integrated watchdog function for each phase
● 64-pin MQFP package Min. DC bus regulation 35% of VDCMAX voltage with capacitive load Programmable DC bus ramp time 100msec to 330msec (typ.) Typical Application
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● Motor drives Welders Battery chargers Power supplies
DESCRIPTION
Comprehensive line status fault output including 1/3 phase loss and high or low line fault provides versatile line diagnostic capability to the system.
