NCP1013AP100G

NCP1013AP100G is an On Semiconductor device in the NCP101x family: a high‑voltage offline switch-mode power supply controller with an integrated MOSFET, intended for low‑power, isolated SMPS (AC‑DC adapters, chargers, LED drivers).
Key points:
- Integrated high‑voltage MOSFET (typically ~650–700 V) with a PWM/controller circuit
- Fixed-frequency, current‑mode control suitable for flyback topology
- Startup current source, undervoltage lockout, cycle‑by‑cycle current limit
- Protections: overcurrent/short‑circuit protection and thermal shutdown
- Designed for simple BOMs and small footprint; commonly used in compact, cost‑sensitive power supplies
Typical usage:
- Flyback converters in wall‑wart adapters, USB chargers, and low‑/mid‑power LED drivers
- Primary‑side regulation options depending on required output accuracy
Package/variant:
- NCP1013AP100G denotes packaging/grade; check datasheet for exact package and electrical specs
Note:
- Always refer to the latest datasheet for precise voltage/current ratings, frequency, and application guidelines.

Here are the typical features of NCP1013AP100G (offline flyback controller, lead-free):
- Fixed-frequency, current-mode PWM controller for flyback offline power supplies
- Integrated high-voltage startup and gate drive; in many variants includes a 650–700 V switch
- Short-circuit/overcurrent protection with latch
- Overvoltage protection and undervoltage lockout
- Thermal shutdown protection
- Soft-start and frequency jitter for EMI reduction
- Valley/current-sense topology with robust protection against line/load transients
- Low-component-count, suitable for compact adapters and LED drivers
- 8-pin lead-free package (AP100G) suitable for surface-mount designs
Note: exact features may vary by revision; consult the datasheet for precise specifications and whether the HV switch is integrated for this specific part variant.

NCP1013AP100G comes in an 8-pin SOP-8 (SOIC) surface-mount package; lead-free (G).

- Pin count: 8 pins (SO-8/DIP-8 package).
- Function: Off-line flyback controller with integrated high-voltage MOSFET. Provides fixed-frequency, peak-current–mode PWM for SMPS, startup from the HV rail, and protections (UVLO, overcurrent/thermal). Typical pins include:
- DRAIN: HV drain of the internal MOSFET (to primary winding / rectified mains)
- VCC: IC supply
- GND: Ground
- FB (feedback): signal from control loop (optocoupler or primary regulation)
- IS/CS: current-sense input for peak current limit
- EN/UVLO: enable and undervoltage lockout
- RT/CT: frequency-setting RC network
- NC or additional pad depending on package

- Manufacturer: ON Semiconductor (ON Semiconductor Corporation), commonly called Onsemi.
- What kind of company: An American multinational semiconductor manufacturer and supplier of energy-efficient semiconductor solutions.

Applications include:
- Off-line flyback switching power supplies (low-to-mid power)
- Wall adapters and small power bricks
- LED constant-current drivers
- Standby/power rails in TVs, monitors, and AV equipment
- Battery/portable-device chargers and other consumer electronics SMPS

Direct drop-in equivalents do not exist. NCP1013AP100G is a 700V high-voltage integrated-FET current-mode PWM from ON’s NCP101x family. Closest functional substitutes:
- ON Semiconductor: NCP1010/NCP1015 (other NCP101x parts)
- Power Integrations: LNK364PN/LNK364DG (TinySwitch-III)
- STMicroelectronics: VIPER22A/VIPER16A families
Note: pinouts and timing differ; use datasheet cross-reference or distributor tools for exact substitution.