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Contents

README

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NCP1207APG

onsemi · AC-DC Controllers And Regulators · PDIP-8

NCP1207APG from onsemi, in a PDIP-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 Demag input Core reset detection and overvoltage detection input; the auxiliary flyback signal ensures discontinuous operation and offers a fixed overvoltage detection level of 7.2 V.
2 FB input Sets the peak current setpoint; an optocoupler connected to this pin adjusts the setpoint to the output power demand, and bringing the pin below the internal skip level shuts the device off.
3 CS input Current sense input that routes the primary current to the internal comparator via an L.E.B.; a resistor in series with this pin sets the level at which skip operation takes place.
4 GND power_in The IC ground.
5 Drv output Driver output that drives pulses to an external MOSFET.
6 VCC power_in Supplies the IC; connected to an external bulk capacitor of typically 10 µF.
7 NC unconnected Unconnected pin that ensures adequate creepage distance (there is no pin 7 on the NCP1207B).
8 HV input High-voltage pin connected to the high-voltage rail that injects a constant current into the VCC bulk capacitor.

Key specifications

Parameter Value
Manufacturer onsemi
Package PDIP-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
VCC increasing level at which the current source turns off VCCOFF 10.8 12 12.9 V 5
VCC decreasing level at which the current source turns on VCCON 9.1 10 10.6 V 5
Internal IC consumption, no output load on pin 5 ICC1 1 1.3 mA FSW = 60 kHz (max at TJ = 0°C, Note 2) 5
Internal IC consumption, 1.0 nF output load on pin 5 ICC2 1.6 2 mA 1.0 nF output load on pin 5, FSW = 60 kHz (max at TJ = 0°C, Note 2) 5
High-voltage current source IC1 4.3 7 9.6 mA VCC = 10 V 5
Source resistance ROH 12 20 36 Ω 5
Sink resistance ROL 5 10 19 Ω 5
Maximum internal current setpoint ILimit 0.92 1 1.12 V Pin 5 unloaded 5
Propagation delay from current detection to gate OFF state TDEL 100 160 ns Pin 5 unloaded 5
Overvoltage internal reference level Vref 6.4 7.2 8 V VCC = 11 V 5
Input threshold voltage (Vpin 1 decreasing) Vth 35 50 90 mV Vpin 1 decreasing 5
Input clamp voltage, high state VCH 8 10 12 V Ipin 1 = 3.0 mA 5
Input clamp voltage, low state VCL -0.9 -0.7 -0.5 V Ipin 1 = −2.0 mA 5
Maximum voltage on pin 8 (HV), pin 6 (VCC) decoupled to ground with 10 F VHVMAX 500 V decoupled to ground with 10 F 4
Minimum voltage on pin 8 (HV), pin 6 (VCC) decoupled to ground with 10 F VHVMIN 40 V decoupled to ground with 10 F 4
Power supply voltage, VCC pin, continuous voltage VCC 20 V Static 4
Transient power supply voltage VCC Pulse 25 V Duration < 10 ms, IVCC < 20 mA 4
Maximum voltage on pin 5 (Drv) 20 V 4
Maximum voltage on all other pins except pin 8 (HV), pin 6 (VCC) and pin 5 (Drv) -0.3 10 V 4
Maximum current for all pins except VCC (6), HV (8) and Demag (1) when 10 V ESD diodes are activated 5 mA 10 V ESD diodes activated 4
Maximum current in pin 1 (Demag) -2 3 mA 4
Thermal resistance, junction-to-case RθJC 57 °C/W 4
Thermal resistance, junction-to-air, DIP8 version RθJA 100 °C/W DIP8 version 4
Operating junction temperature TJ -40 125 °C 4
Maximum junction temperature TJMAX 150 °C 4
Storage temperature range -60 150 °C 4
ESD capability, HBM model (all pins except HV) 2 kV Human Body Model, JESD22-A114E 4
ESD capability, machine model 200 V Machine Model, JESD22-A115A 4

CAD (KiCad official)

  • Symbol: NCP1207APG
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: PDIP-8 (KiCad packages3D, STEP)
  • 3D model files: ncp1207apg-etched.step / ncp1207apg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp1207apg.step / ncp1207apg.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (21 pp, sha256 ca0eefd59508b47d, retrieved 2026-10-16, 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