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KP2126DP

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Kiwi Instruments AC-DC Controllers And Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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KP2126DP

Kiwi Instruments · AC-DC Controllers And Regulators · DIP-8

KP2126DP from Kiwi Instruments, in a DIP-8. 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 VDD power_in Chip supply pin; the datasheet gives a recommended VDD range of 11 to 27 V, an absolute maximum of -0.3 to 34.5 V, and a VDD clamp of 32.5 to 36.5 V at 7 mA.
2 GND power_in Chip ground pin.
3 FB input System feedback pin that receives the divided auxiliary-winding voltage for CV output voltage control and CC output current control, with an absolute voltage range of -0.7 to 7 V.
4 CS input Current-sense input for cycle-by-cycle over-current protection, with a Vcs(max) threshold of 490 to 510 mV, 500 ns leading-edge blanking, and an absolute voltage range of -0.3 to 7 V.
5 Drain power_in Drain of the internal power MOSFET, rated for a 650 V drain-source breakdown voltage (VBR minimum 650 V) and a maximum Drain voltage of 650 V.
6 Drain power_in Drain of the internal power MOSFET, rated for a 650 V drain-source breakdown voltage (VBR minimum 650 V) and a maximum Drain voltage of 650 V.
7 Drain power_in Drain of the internal power MOSFET, rated for a 650 V drain-source breakdown voltage (VBR minimum 650 V) and a maximum Drain voltage of 650 V.
8 Drain power_in Drain of the internal power MOSFET, rated for a 650 V drain-source breakdown voltage (VBR minimum 650 V) and a maximum Drain voltage of 650 V.

Key specifications

Parameter Value
Manufacturer Kiwi Instruments
Package DIP-8
Category Power Management (PMIC)
Pins 8

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 DC supply voltage -0.3 34.5 V 4
Drain voltage -0.3 650 V 4
FB, SEL voltage range -0.7 7 V 4
CS voltage range -0.3 7 V 4
VDD DC clamp current 10 mA 4
Maximum junction operating temperature 165 oC 4
Storage temperature range -40 165 oC 4
Soldering temperature 260 oC Soldering, 10 s 4
ESD human body model 3 kV 4
VDD supply voltage 11 27 V 4
Operating junction temperature -40 150 oC 4
Minimum operating frequency 35 kHz Full load, flyback primary-side control 4
Maximum operating frequency 70 kHz Full load, flyback primary-side control 4
VDD start-up current IVDD_st 2 15 uA 4
VDD operating current IVDD_Op 0.3 0.7 0.9 mA VFB=1.1V, VDD=18V 4
VDD quiescent current IVDD_standby 0.5 1 mA 4
VDD turn-on voltage VDD_ON 15 16.3 17.5 V 4
VDD turn-off voltage VDD_OFF 8 9 10 V 4
VDD OVP threshold VDD_OVP 28 30 32 V 4
VDD clamp voltage VDD_Clamp 32.5 34.5 36.5 V I(VDD) = 7 mA 5
Internal error amplifier reference input VFBREF 1.97 2 2.03 V 5
Maximum off time Toff_max 3.6 4 4.5 ms 5
Maximum cable compensation current ICable_max 48 53 58 uA 5
Overcurrent protection threshold Vcs(max) 490 500 510 mV 5
Power MOSFET static drain-source on-resistance Rdson 1.6 2 Ω 5
Short-circuit protection threshold VFB_SLP 0.7 V 5
Short-circuit protection debounce time TFB_Short 10 ms 5
Demagnetization comparator threshold VFB_DEM 20 mV 5
LEB blanking time Tblank 3.5 us CC mode (note 5) 5
LEB blanking time Tblank 2 us CV mode (note 5) 5
Leading edge blanking time TLEB 500 ns 5
Overcurrent protection turn-off delay TD_OC 100 ns 5
Over-temperature shutdown TSD 165 °C 5
Over-temperature recovery TRC 135 °C 5
Power MOSFET drain-source breakdown voltage VBR 650 V 5
Internal MOSFET drain current ID 5 A 5
Thermal resistance junction-to-ambient (DIP-8) 105 oC/W 4

CAD (KiCad official)

  • Symbol: KP2126DP
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: kp2126dp-etched.step / kp2126dp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kp2126dp.step / kp2126dp.glb are the bare package body.

Provenance

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

  • Datasheet: Kiwi Instruments datasheet (8 pp, sha256 deacf836e16e89ce, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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