InnoMux2-EPPin Functional Description IMX226xC InnoMux2-EP InSOP-24B 1CV+1LED Dual Dimming PinConfigurationD 241 ISENSE2 GNDCURRENT SENSE (ISENSE) Pin (Pin 1)3 IDRIVE Connection to external LED driver MOSFET source terminal for 4 VSENSE sensing LED current. An external current sense resistor should be 5 CDR16 BPS connected between this and the GND pin. 7 DIM2S 16-198 DIM1SECONDARY GROUND (GND) Pin (Pin 2)9 FWD GND for the secondary IC. NC 1510 VCV1BPP 1411 VLEDCURRENT SOURCE DRIVE (IDRIVE) Pin (Pin 3)V 1312 NC Connection to external LED driver MOSFET gate terminal for controlling LED current. PI-9705-030923 VOLTAGE SENSE (VSENSE) Pin (Pin 4) Connection to external LED driver MOSFET Drain terminal for regulation of voltage to minimise MOSFET power dissipation. Figure 8. InnoMux2-EP InSOP-24B 1CV+1LED Dual Dimming Pin Configuration GATE DRIVE 1 (CDR1) Pin (Pin 5) (Bottom View). Gate driver for external selection MOSFET for the V output. CV1 NC Pin (Pin 12)SECONDARY BYPASS (BPS) Pin (Pin 6) Leave open. Should not be connected to any other pins. Connection for external bypass capacitor for the secondary IC supply. UNDER/OVER INPUT VOLTAGE (V) Pin (Pin 13)LED DIMMING 2 (DIM2) Pin (Pin 7) A high-voltage pin connected to the AC or DC side of the input bridge LED dimming control input. for detecting undervoltage and overvoltage conditions at the power LED DIMMING 1 (DIM1) Pin (Pin 8) supply input. This pin should be tied to the SOURCE pin to disable LED dimming control input. UV/OV protection. FORWARD (FWD) Pin (Pin 9)PRIMARY BYPASS (BPP) (Pin 14) The connection point to the switching node of the transformer output The connection point for an external bypass capacitor of the winding providing information on primary switch timing. Provides primary-side supply. This is also the I selection pin for choosing LIM power for the secondary-side control er during start-up. standard I or I . LIM LIM+1 OUTPUT VOLTAGE 1 (VCV1) Pin (Pin 10)NC Pin (Pin 15) Connected directly to the V output voltage, to provide current for Leave open or connect to the SOURCE pin or BPP pin. CV1 the control er on the secondary-side and provide sensing for output SOURCE (S) Pin (Pin 16-19) voltage regulation and protection. These pins are the power switch SOURCE connection. Also ground LED OUTPUT VOLTAGE (VLED) Pin (Pin 11) reference for the primary BYPASS pin. Connected directly to the LED output voltage, to provide current for DRAIN (D) Pin (Pin 24) the control er on the secondary-side and provide sensing for LED Power switch Drain connection. voltage regulation and protection. SOURCE (S) Exposed Pad (InSOP-24B Only) Power switch SOURCE connection. Also ground reference for the primary BYPASS pin. Connect all SOURCE pins together. Used to enhance thermal management. 6 Rev. C 10/24 www.power.com