Two-pin current source works at 400V for LEDs

Intended to control strings of LEDs running direct from rectifier mains, and called AL5890, it is available 10mA, 15mA, 20mA, 30mA, and 40mA variants. “Its simple two-pin design means it can be inserted directly in the LED string in low-side ac or dc, or high-side ac or dc linear configurations without any external resistors. It is designed to tolerate dc voltages of up to 400V and can be used in off-line applications up to 230Vac. Note: an early version of the data sheet incorrectly states 500Vdc operation.