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NCP1623ASNT1G

Public Made by Adom

by adom

onsemi AC-DC Controllers And Regulators, TSOP-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)ncp1623asnt1gfactory-2.0.0extractor-text
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Contents

README

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NCP1623ASNT1G

onsemi · AC-DC Controllers And Regulators · TSOP-6

NCP1623ASNT1G from onsemi, in a TSOP-6. 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 VCTRL passive The error amplifier output connects here, with regulation loop bandwidth set by the feedback compensation network to ground, and the IC grounds this pin in off mode to provide soft-start on the next startup; absolute maximum rating is -0.3 V to 9 V.
2 GND power_in Power supply ground for the controller.
3 CS/ZCD input Multi-function pin that monitors inductor current, the zero-cross detection (ZCD) signal and input/output voltage, with an absolute maximum of -0.3 V to 11.5 V at 5 mA clamp current.
4 DRV output Totem-pole gate driver (-0.5 A / +0.8 A) for high gate-charge power FETs, with DRV clamped to 14 V maximum by the internal clamp.
5 VCC power_in Supplies IC operating current; the absolute maximum is -0.3 V to 30 V, and the operating range after start-up is 9.5 V to 30 V.
6 FB input Feedback input to the error amplifier that monitors PFC output voltage, with a 250 nA built-in sink that triggers UVP if the pin is open, and an absolute maximum of -0.3 V to 9 V; on the NCP1623A it also sources IFB(LL) of 25 µA typical in low-line conditions.

Key specifications

Parameter Value
Manufacturer onsemi
Package TSOP-6
Category Power Management (PMIC)
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Recommended Operating Junction Temperature Range TJ -40 125 °C 5
Power Supply Input VCC -0.3 30 V 5
CS/ZCD Pin with 5 mA of Clamp Current CS/ZCD -0.3 11.5 V 5
Feedback Pin FB -0.3 9 V 5
VCTRL Pin VCTRL -0.3 9 V 5
Driver Voltage DRV -0.3 V max printed as VDRV(HIGH) (Note 2); no numeric max 5
Maximum Junction Temperature TJ(MAX) 150 °C 5
Storage Temperature Range TSTG -60 150 °C 5
Thermal Resistance, Junction-to-Air, TSOP-6 RJA 230 °C/W JEDEC 51-3 (1s0p) test board, 100 mm2 copper area, 1 oz copper 5
VCC Turn-On Voltage VCC(ON) 9.75 10.5 11.25 V VCC rising 6
VCC Turn-Off Voltage VCC(OFF) 8.5 9 9.5 V VCC falling 6
VCC Reset Voltage, ICC Drops to ICC(START) VCC(RST) 6 7 8 V VCC falling 6
IC Start-Up Current ICC(START) 20 50 A VCC = 7 V 6
IC Operating Current without Switching ICC1 0.5 1 mA No switching 6
IC Operating Current when Switching ICC2 2 3 mA fSW = 50 kHz, No CL load 6
DRV Rising Time tR 15 30 90 ns CL = 1 nF 6
DRV Falling Time tF 10 20 50 ns CL = 1 nF 6
DRV Source Resistance ROH 10 20 6
DRV Sink Resistance ROL 7 15 6
DRV High Clamp Voltage VDRV(HIGH) 10 12 14 V VCC = 30 V, RL = 33 k 6
Maximum On-Time at Low Line, Ver. A tON(MAX−LL) 10.8 12.5 14.2 s 6
Maximum On-Time at High Line, Ver. A tON(MAX−HL) 4.2 5 5.8 s 6
On-Time Ratio of Low and High Line KTON(LL−HL) 2 2.5 3 − tON(LL)/tON(HL) 6
Minimum On Time at Low-Line tON(MIN−LL) 100 180 250 ns 6
Minimum On Time at High-Line tON(MIN−HL) 50 100 150 ns 6
Dead-Time 1 tDT1 13 18 23 s VCTRL = 0.63 V 6
Dead-Time 2 tDT2 5.5 8.5 11.5 s VCTRL = 0.75 V 6
VCTRL Frequency Foldback Enter Voltage VCTRL(FF−EN) 1.87 2.08 2.29 V VCTRL falling 6
VCTRL Frequency Foldback Exit Voltage VCTRL(FF−EX) 1.96 2.18 2.4 V VCTRL rising 6
Minimum Frequency fMIN 24 28 32 kHz 6
VCTRL Skip Enter Voltage VCTRL(SKIP−EN) 0.5 0.56 0.62 V VCTRL falling 6
VCTRL Skip Exit Voltage VCTRL(SKIP−EX) 0.55 0.62 0.68 V VCTRL rising 6
FB Regulation Reference Voltage VREF 2.44 2.5 2.56 V 6
FB Source Current at Low Line, Ver. A IFB(LL) 23.75 25 26.25 A 6
Error Amplifier Source Current IEA(SOURCE) 15 20 25 A VFB = 2.4 V 6
Error Amplifier Sink Current IEA(SINK) -25 -20 -15 A VFB = 2.6 V 6
Error Amplifier Gain GEA 110 200 290 S 6
VCTRL Maximum Clamping Voltage VCTRL(MAX) 4 4.5 5 V VFB = 2 V 6
VCTRL Minimum Clamping Voltage VCTRL(MIN) 0.3 0.5 0.8 V VFB = 3 V 6
VCTRL Startup Source Current IVCTRL(START) 90 120 150 A 6
FB DRE Enter Voltage Ratio KFB(DRE−EN) 94.5 95.5 96.5 % VFB(DRE−EN) / VREF 7
FB DRE Exit Voltage Ratio KFB(DRE−EX) 96.5 97.5 98.5 % VFB(DRE−EX) / VREF 7
VCTRL DRE Source Current IVCTRL(DRE) 180 215 250 A 7
FB SOVP Enter Voltage Ratio KFB(SOVP−EN) 103.5 105 106.5 % VFB(SOVP−EN) / VREF 7
FB SOVP Exit Voltage Ratio KFB(SOVP−EX) 101.5 103 104.5 % VFB(SOVP−EX) / VREF 7
FB SOVP Enter Voltage Ratio at Low Line, Ver. A KFB(SOVP−EN−LL) 108.5 110 111.5 % VFB(SOVP−EN−LL) / VREF 7
FB SOVP Exit Voltage Ratio at Low Line, Ver. A KFB(SOVP−EX−LL) 106.5 108 109.5 % VFB(SOVP−EX−LL) / VREF 7
FB FOVP Enter Voltage Ratio KFB(FOVP−EN) 105.5 107 108.5 % VFB(FOVP−EN) / VREF 7
FB FOVP Exit Voltage Ratio KFB(FOVP−EX) 103.5 105 106.5 % VFB(FOVP−EX) / VREF 7
FB FOVP Enter Voltage Ratio at Low Line, Ver. A KFB(FOVP−EN−LL) 112.5 114 115.5 % VFB(FOVP−EN−LL) / VREF 7
FB FOVP Exit Voltage Ratio at Low Line, Ver. A KFB(FOVP−EX−LL) 110.5 112 113.5 % VFB(SOVP−EX−LL) / VREF 7
FB UVP Enter Voltage VFB(UVP−EN) 240 300 360 mV VFB falling 7
FB UVP Exit Voltage VFB(UVP−EX) 470 530 590 mV VFB rising 7
FB UVP Enter Voltage at Low Line, Ver. A VFB(UVP−EN−LL) 1.1 1.2 1.3 V VFB falling 7
FB UVP Exit Voltage at Low Line, Ver. A VFB(UVP−EX−LL) 1.2 1.3 1.4 V VFB rising 7
FB UVP Sink Current IFB(UVP) 50 250 450 nA 7
CS Over-Current Protection (OCP) Voltage VCS(OCP) 450 500 550 mV 7
CS OCP Leading Edge Blanking Time tOCP(LEB) 320 400 460 ns 7
CS Over-Stress Protection (OVS) Voltage VCS(OVS) 675 750 825 mV 7
CS OVS Watch Dog Timer tOVS(WDG) 700 800 900 s 7

CAD (KiCad official)

  • Symbol: NCP1623ASNT1G
  • Footprint: Package_SO:TSOP-6_1.65x3.05mm_P0.95mm
  • 3D model: TSOP-6 (KiCad packages3D, STEP)
  • 3D model files: ncp1623asnt1g-etched.step / ncp1623asnt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp1623asnt1g.step / ncp1623asnt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (20 pp, sha256 6e5feae9cd266fb6, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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