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Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary-Side Switch, Synchronous Rectification, FluxLink Feedback and Constant Power Profile

Product Details

The InnoSwitch3-CP family of ICs dramatically simplifies the design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. The InnoSwitch3-CP family incorporates a high-voltage primary-side switch, primary and secondary controllers, and safety-rated feedback into a single IC. These devices incorporate multiple protection features including line over and under-voltage protection, output over-voltage and over-current limiting, and over-temperature shutdown. Devices are available that support the common combinations of latching and auto-restart behaviors required by applications such as quick charge and USB PD designs. The devices are available with and without cable-drop compensation.

Product Highlights

Highly Integrated, Compact Footprint

  • Quasi-Resonant (QR) / CCM flyback controller, high-voltage primary-side switch, secondary-side sensing and synchronous rectification driver
  • Integrated FluxLink, HIPOT-isolated, feedback link
  • Easily interfaces to load-directed and fast-charge protocol ICs
  • Constant Power (CP) Profile minimizes charging time with continuous adjustment of output current and voltage
  • Accurate CV/CC/CP, independent of external components
  • External IS resistor allows custom CC programming
  • Instantaneous transient response with 0%-100%-0% load step

PowiGaN Technology

EcoSmart – Energy Efficient

  • Up to 95% efficiency across full load range
  • Less than 30 mW no-load including line sense
  • Easily meets all global energy efficiency regulations
  • Low heat dissipation

Advanced Protection / Safety Features

  • Secondary Switch or diode short-circuit protection
  • Open SR FET-gate detection
  • Fast input line UV/OV protection

Optional Features

  • Cable-drop compensation with multiple settings
  • Variable output voltage, constant current profiles
  • Auto-restart or latching fault response for output OVP/UVP
  • Multiple output UV fault thresholds
  • Latching or hysteretic primary over-temperature protection

Full Safety and Regulatory Compliance

  • Reinforced isolation
  • Isolation voltage >4000 VAC
  • 100% production HIPOT testing
  • UL1577 and TUV (EN60950, EN62368) safety approved
  • Excellent noise immunity enables designs that achieve class “A” performance for EN61000-4; EN61000-4-2, 4-3 (30 V/m), 4-4, 4-5, 4-6, 4-8 (100 A/m) and 4-9 (1000 A/m) and Ford FMC1278 (RI-115)
Output Power (Max) - Open Frame, 230V 100.00 W
Output Power (Max) - Enclosed, 230V 90.00 W
Output Power (Max) - Enclosed, Univ 75.00 W
Output Power (Max) - Open Frame, Univ 85.00 W
Switching Frequency (min) 25.00 kHz
Switching Frequency (max) 95 kHz
Breakdown Voltage 750 V
Voltage - Output (Min) 5.00 V
Voltage - Output (Max) 24.00 V
Voltage - Input (Min) 85 V
Voltage - Input (Max) 265 V
Auto-Restart & Overvoltage Response Auto-restart
Auto-Restart Threshold 63%
Cable Drop Compensation 0 mV
IC Package inSOP-24D
Integrated Diode
Internal Switch Yes
Over-Temperature Response Auto-restart
PowiGaN? Yes
Temperature - Operating (Min) -40 °C
Temperature - Operating (Max) 150 °C
Control Scheme Fluxlink
Protection Features
Input Overvoltage
Input Undervoltage
Open SR FET Detection
Output Overload
Output Overvoltage
Output Short Circuit
Output Profile CC
Topology Flyback
Product Sub-Type PMIC
MSL Rating 3
Secondary Response Auto-restart