Datasheet IMX (Power Integrations) - 8

InnoMux2-EP InnoMux2-EP InSOP-T28D 3CV / 2CV Pin Configuration IMX217xF, IMX237xF FEEDBACK 1 (FB1) Pin (Pin 1) V 15 14 NC
Connection to an external resistor divider to set the power supply
NC 16 13 VCVHV 12 VCV2/AS
output voltage of V .
BPP 17
CV1
NC 18 11 VCV1 10 FWD SECONDARY GROUND (GND) Pin (Pin 2) S 19-22 9 SR
GND for the secondary IC.
8 FBHV 7 CDR2 FEEDBACK 2 (FB2) Pin (Pin 3) / NC for 2CV output 6 BPS 5 CDR1
Connection to an external resistor divider to set the power supply
4 NC
output voltage of V . Not used for 2CV, leave open should not be
3 FB2
CV2
2 GND
connected to any other pins.
D 28 1 FB1 NC Pin (Pin 4)
Leave open. Should not be connected to any other pins. PI-9404c-041624
GATE DRIVE 1 (CDR1) Pin (Pin 5)
Gate driver for external selection MOSFET for V output. CV1 Figure 10. InnoMux2-EP InSOP-T28D 3CV / 2CV Pin Configuration.
SECONDARY BYPASS (BPS) Pin (Pin 6)
Connection for external bypass capacitor for the secondary IC supply.
NC Pin (Pin 14) GATE DRIVE 2 (CDR2) Pin (Pin 7) / NC for 2 CV Output
Leave open. Should not be connected to any other pins. Gate driver for external selection MOSFET for V output. Not used
UNDER/OVER INPUT VOLTAGE (V) Pin (Pin 15)
CV2 for 2CV output, leave open, should not be connected to any other A high-voltage pin connected to the AC or DC side of the input bridge pins. for detecting undervoltage and overvoltage conditions at the power
FEEDBACK HV (FBHV) Pin (Pin 8)
supply input. This pin should be tied to SOURCE pin to disable UV/OV Connection to an external resistor divider to set the power supply protection. output voltage of V .
NC Pin (Pin 16)
CVHV
SYNCHRONOUS RECTIFIER DRIVE (SR) Pin (Pin 9)
Leave open or connect to SOURCE pin or BPP pin. Gate driver for external SR MOSFET.
PRIMARY BYPASS (BPP) (Pin 17) FORWARD (FWD) Pin (Pin 10)
The connection point for an external bypass capacitor of the The connection point to the switching node of the transformer output primary-side supply. This is also the I selection pin for choosing LIM winding providing information on primary switch timing. Provides standard I or I . LIM LIM+1 power for the secondary-side control er during start-up.
NC Pin (Pin 18) OUTPUT VOLTAGE 1 (VCV1) Pin (Pin 11)
Leave open. Should not be connected to any other pins. Connected directly to the V output voltage, to provide current for
SOURCE (S) Pin (Pin 19-22)
CV1 the control er on the secondary-side and for protection. These pins are the power switch SOURCE connection. Also ground
OUTPUT VOLTAGE 2 (VCV2/AS) Pin (Pin 12)
reference for primary BYPASS pin. 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 V output voltage, to provide current for CVHV the control er on the secondary-side and for protection.
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Rev. C 10/24 www.power.com