User guide
18 of 45
V 1.0.1
2021-01-27
REF-AIRCON-C302A-IM564 user guide
Air conditioner application reference design kits
System and functional description
2.2.3
Overview of 1ED44175
A 1ED44175 is used for the PFC MOSFET drive and PFC OCP, its main functions and features are as follows:
2.6 A low-side driver with overcurrent protection and fault/enable pin
Overcurrent detection with negative input, -246 mV overcurrent threshold (with accurate ±5% tolerance)
Enable input and fault output
Output in phase with input, active-high input logic
Programmable fault clear time, OUT keeps “Low” during protection time
Undervoltage lockout
CMOS Schmitt-triggered inputs, 3.3 V, 5 V and 15 V input logic-compatible
3 kV ESD HBM
The 1ED44175 is in a SOT23-6 package; the pin definition and package outline are shown in Figure 13.
Figure 13
Package and block diagram of 1ED44175
