DER-424: 180mA @ 48V Max, 90 ~ 265VAC in
This document contains the power supply and transformer specifications, schematics, bill of materials, and typical performance characteristics pertaining to this power supply.
The LYTSwitch-2 family of ICs dramatically simplifies low power CC LED drivers by eliminating the optocoupler and secondary control circuitry. The family introduces a revolutionary control technique to provide accurate output current regulation, compensating for transformer and external component variations, and device parameter tolerances as well as input voltage variations.
The device incorporates a high-voltage switching MOSFET, a novel ON/OFF control state machine, a high-voltage switched current source for self-biasing, frequency jitter to reduce EMI, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry into a monolithic IC. This high level of integration enables highly cost-effective designs with very few external components, reducing solution cost and driver size.
|Sub-Category||LED Drivers - AC / Offline|
|Outputs and Type||
|Voltage Out (Max)||
|Efficiency @ Conditions||
>86.3%, 195 ~ 265 VACin, @ 48 VLED
>86.2%, 170 ~ 265 VACin, @ 42 VLED
>85%, 180 ~ 265 VACin, @ 36 VLED
>85%, 172 ~ 265 VACin, @ 30 VLED
>84.7%, 165 ~ 265 VACin, @25 VLED
>84.2%, 160 ~ 265 VACin, @ 22 VLED
Current Limit (Adj. or Fixed)
Frequency Jitter for EMI
Open Circuit Protection
Short Circuit Protection
Under Voltage Protection, Brown-Out
|Component Count + Extras||
25 + 5
|Application / Target Market||
90 ~ 265 VAC
|Main I.C. Base Part||