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NCP4390DR2G

Public Made by Adom

by adom

onsemi AC-DC Controllers & Regulators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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NCP4390DR2G

onsemi · AC-DC Controllers & Regulators · SOIC-16

NCP4390DR2G from onsemi, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 5VB power_out 5 V reference output, with pin voltage rated -0.3 V to 5.5 V absolute maximum.
2 PWMS input PWM mode entry level setting pin, rated -0.3 V to 5.0 V.
3 FMIN input Minimum frequency setting pin, rated -0.3 V to 5.0 V.
4 FB input Output voltage sensing input for feedback control, rated -0.3 V to 5.0 V.
5 COMP output Output of the error amplifier, rated -0.3 V to 5.0 V.
6 SS passive Soft-start time programming pin, rated -0.3 V to 5.0 V.
7 ICS passive Current information integration pin for current mode control, rated -0.5 V to 5.0 V.
8 CS input Current sensing input for over current protection, rated -5.0 V to 5.0 V.
9 RDT passive Dead time programming pin for the primary side switches and secondary side SR switches, rated -0.3 V to 5.0 V.
10 SR1DS input SR1 drain-to-source voltage detection input, rated -0.3 V to 5.0 V.
11 SROUT2 output Gate drive output for secondary side SR MOSFET 2, rated -0.3 V to VDD.
12 SROUT1 output Gate drive output for secondary side SR MOSFET 1, rated -0.3 V to VDD.
13 PROUT2 output Gate drive output 2 for the primary side switch, rated -0.3 V to VDD.
14 PROUT1 output Gate drive output 1 for the primary side switch, rated -0.3 V to VDD.
15 VDD power_in IC supply voltage, recommended 0 V to 18 V and absolute maximum 20.0 V.
16 GND power_in Ground; all voltage ratings are referenced to this pin.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-16
Category Power Management ICs
Pins 16

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VDD Pin Supply Voltage VDD -0.3 20 V to GND 4
5VB Pin Voltage V5VB -0.3 5.5 V 4
CS Pin Voltage VCS -5 5 V 4
ICS Pin Voltage VICS -0.5 5 V 4
Junction Temperature TJ -40 150 °C 4
Storage Temperature TSTG -65 150 °C 4
Lead Soldering Temperature TL 260 °C 10 seconds 4
ESD HBM ESD 2 kV Human body Model, ANSI/ESDA/JEDEC JS-001-2012 4
ESD CDM ESD 1 kV Charged Device Model, JESD22-C101 4
Junction-to-Ambient Thermal Resistance RθJA 115 °C/W 4
VDD Supply Voltage (operating) VDD 0 18 V to GND 4
5VB Pin Voltage (operating) V5VB 0 5 V 4
Signal Input Voltage VINS 0 5 V 4
Operating Junction Temperature TJ -40 125 °C 4
Startup Supply Current ISTARTUP 80 115 µA VDD = 9 V 5
VDD ON Voltage VDD.ON 9 10 11 V VDD rising 5
UVLO Hysteresis VDD.HYS 0.9 1.4 1.9 V 5
5 V Reference V5VB 4.99 5.05 5.11 V TJ = 25°C 5
5 V Reference V5VB 4.9 5.05 5.2 V -40°C < TJ < 125°C 5
Voltage Feedback Reference VSS.CLMP 2.37 2.4 2.43 V TJ = 25°C 5
Voltage Feedback Reference VSS.CLMP 2.34 2.4 2.46 V -40°C < TJ < 125°C 5
Error Amplifier Max Output Current (Sourcing) ICOMP1 65 90 115 µA VFB = 1.8 V, VCOMP = 2.5 V 5
Error Amplifier Max Output Current (Sinking) ICOMP2 65 90 115 µA VFB = 3.0 V, VCOMP = 2.5 V 5
Error Amplifier Output High Clamping Voltage VCOMP.CLMP1 4.2 4.4 4.6 V VFB = 1.8 V 5
VCOMP Internal Clamping Voltage for PWM VCOMP.PWM 1.26 1.41 1.56 V RPWM = 130 k 5
VCOMP Internal Clamping Voltage for PWM VCOMP.PWM 1.4 1.6 1.8 V RPWM = 82 k 5
PWMS Pin Voltage VPWMS 1.9 2 2.1 V RPWM = 82 k 5
VCOMP Threshold for Entering Skip Cycle VCOMP.SKP 1.15 1.25 1.35 V 5
Dead-Time Programming Current IDT 140 150 160 µA VRDT = 1.2 V 5
First Threshold for Dead-Time Detection VTHDT1 0.9 1 1.1 V 5
Second Threshold for Dead-Time Detection VTHDT2 2.8 3 3.2 V 5
VRDT ON Voltage VRDT.ON 1.2 1.4 1.6 V VRDT rising 5
Total Soft-Start Current ISS.T 32 40 52 µA VSS = 1 V 5
Overload Protection Threshold VOLP 3.45 3.6 3.75 V 5
Soft-Start Charge Current for Delayed Shutdown ISS.UP 8.2 10.5 12.8 µA VSS = 3 V 5
Soft-Start Discharge Current ISS.DN 8.2 10.5 12.8 µA VSS = 3 V 6
SS Capacitor Maximum Charging Voltage VSS.MAX 4.5 4.7 4.9 V 6
SS Capacitor Initialization Voltage VSS.INIT 0.01 0.1 0.2 V 6
VFB Threshold for Entering Skip Cycle VFB.OVP1 2.53 2.65 2.77 V VCOMP = 3 V 6
VFB Threshold for Exiting Skip Cycle VFB.OVP2 2.18 2.3 2.42 V VCOMP = 3 V 6
Error Voltage to Enable OSP VERR.OSP 1 1.2 1.4 V VSS = 2.4 V 6
FMIN Pin Voltage VFMIN 1.4 1.5 1.6 V RFIMN = 10 k 6
PROUT Switching Frequency fOSC 95 100 105 kHz RMINF = 10 k, VCS = 1 V, VCOMP = 4.0 V, VICS = 0 V 6
Minimum PROUT Switching Frequency fOSC.min 36 39 42 kHz RMINF = 40 k, VCS = 1 V, VCOMP = 4.0 V, VICS = 0 V 6
Maximum PROUT Switching Frequency fOSC.max 635 690 735 kHz RMINF = 2 k, VCS = 1 V, VCOMP = 2.0 V, VICS = 0 V 6
ICS Pin Signal Clamping Voltage VICS.CLMP 10 50 mV ICS = 400 µA 6
SR_SHRNK Enable Threshold VTH1 0.15 0.2 0.25 V VCOMP = 2.4 V 6
SR_SKIP Disable Threshold VTH2 0.1 0.15 0.2 V VCOMP = 2.4 V 6
SR_SKIP Enable Threshold VTH3 0.025 0.075 0.125 V VCOMP = 2.4 V 6
Over-Current Limit First Threshold VOCL1 1.12 1.2 1.28 V VCOMP = 2.4 V 6
Over-Current Limit Second Threshold VOCL2 1.34 1.45 1.56 V VCOMP = 2.4 V 6
Over-Current Limit First Threshold Deep Below Resonance VOCL1.BR 1.34 1.45 1.56 V VCOMP = 2.4 V 6
Over-Current Limit Second Threshold Deep Below Resonance VOCL2.BR 1.59 1.7 1.81 V VCOMP = 2.4 V 6
Over-Current Protection Threshold VOCP1 1.77 1.9 2.03 V VCOMP = 2.4 V 6
Over-Current Protection Threshold (BR) VOCP1.BR 2.02 2.15 2.28 V VCOMP = 2.4 V 6
Over-Current Protection Threshold (CS positive) VOCP2P 3.3 3.5 3.7 V 7
Over-Current Protection Threshold (CS negative) VOCP2N -4 -3.5 -3 V 7
CS Signal Threshold for Non-ZVS Detection VCS.NZVS 0.24 0.3 0.36 V VCOMP = 3.5 V 7
COMP Threshold for Non-ZVS Detection VCOMP.NZVS 2.7 3 3.3 V VCS = 0.1 V 7
Internal RC Time Constant SR Conduction Detection TRC_SRCD 50 100 150 ns guaranteed by design 7
SR Conduction Detect Threshold VSRCD.LOW 0.4 0.5 0.6 V 7
SR Enable FB Voltage VFB.SR.ON 1.6 1.8 2 V 7
SR Disable FB Voltage VFB.SR.OFF 1 1.2 1.4 V 7

CAD (KiCad official)

  • Symbol: NCP4390DR2G
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: ncp4390dr2g-etched.step / ncp4390dr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp4390dr2g.step / ncp4390dr2g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (31 pp, sha256 4ceee51d3b522bf9, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF