Datasheet IMX (Power Integrations) - 9

InnoMux2-EP InnoMux2-EP 2CV/3CV Pin Configuration IMX2353F FEEDBACK 1 (FB1) Pin (Pin 1)
Connection to an external resistor divider to set the power supply
V 15 14 NC
output voltage of VCV1. Not used with internal feedback*.
BPP 16 13 VCVHV NC 17 12 VCV2/AS SECONDARY GROUND (GND) Pin (Pin 2) 11 VCV1 S 18-19 10 FWD
GND for the secondary IC.
9 SR 8 FBHV FEEDBACK 2 (FB2) Pin (Pin 3) 7 CDR2
Connection to an external resistor divider to set the power supply
6 BPS
output voltage of VCV2. Not used in 2CV configuration or in combination
5 CDR1 4 NC
with internal feedback*.
3 FB2 2 GND NC Pin (Pin 4) D 28 1 FB1
Leave open. Should not be connected to any other pins.
GATE DRIVE 1 (CDR1) Pin (Pin 5)
PI-9749a-082224 Gate driver for external selection MOSFET for VCV1 output.
SECONDARY BYPASS (BPS) Pin (Pin 6)
Connection for external bypass capacitor for the secondary IC supply. Figure 11. InnoMux2-EP InSOP-T28G 3CV Pin Configuration.
GATE DRIVE 2 (CDR2) Pin (Pin 7) NC Pin (Pin 14)
Gate driver for external selection MOSFET for VCV2 output. Not used Leave open. Should not be connected to any other pins. in 2CV configuration.
UNDER/OVER INPUT VOLTAGE (V) Pin (Pin 15) FEEDBACK HV (FBHV) Pin (Pin 8)
A high-voltage pin connected to the AC or DC side of the input bridge Connection to an external resistor divider to set the power supply for detecting undervoltage and overvoltage conditions at the power output voltage of VCVHV. supply input. This pin should be tied to SOURCE pin to disable UV/OV protection.
SYNCHRONOUS RECTIFIER DRIVE (SR) Pin (Pin 9)
Gate driver for external SR MOSFET.
PRIMARY BYPASS (BPP) Pin (Pin 16)
The connection point for an external bypass capacitor of the
FORWARD (FWD) Pin (Pin 10)
primary-side supply. This is also the ILIM selection pin for choosing The connection point to the switching node of the transformer output standard ILIM or ILIM+1. winding providing information on primary switch timing. Provides power for the secondary-side control er during start-up.
NC Pin (Pin 17)
Leave open. Should not be connected to any other pins.
OUTPUT VOLTAGE 1 (VCV1) Pin (Pin 11)
Connected directly to the VCV1 output voltage, to provide current for
SOURCE (S) Pin (Pin 18-19)
the control er on the secondary-side and for protection. These Pins are the power switch source connection. Also ground reference for primary BYPASS pin.
OUTPUT VOLTAGE 2 (VCV2/AS) Pin (Pin 12)
Connected directly to the V output voltage, to provide current for
DRAIN (D) Pin (Pin 28)
CV2 the control er on the secondary-side. Alternative supply as input for Power switch drain connection. 2CV configuration. Can be left open if not in use.
OUTPUT VOLTAGE HV (VCVHV) Pin (Pin 13)
Connected directly to the VCVHV output voltage, to provide current for the control er on the secondary-side and for protection.
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Rev. C 10/24 www.power.com