INN3377C-H301
Digitally Controllable Off-Line CV/CC QR Flyback Switcher IC with Integrated High-Voltage Switch, Synchronous Rectification and FluxLink Feedback
Product Details
The InnoSwitch3-Pro series family of ICs dramatically simplifies the development and manufacturing of fully programmable, highly efficient power supplies, particularly those in compact enclosures. The universal I²C interface enables dynamic control of output voltage and current along with many configurable features. Telemetry provides reporting of programmed features and fault modes.
InnoSwitch3-Pro devices are ideal for AC/DC power supply applications where fine (10 mV, 50 mA) output voltage and current adjustment are necessary. Typical implementations comprise a system microprocessor or dedicated microcontroller with an I²C port that is used to configure, control and supervise operation of the power sub-system. The uVCC pin provides bias to the microprocessor in standalone implementations such as USB PD adapters and chargers.
Product Highlights
Digitally Controlled via I²C Interface
- Dynamic adjustment of power supply voltage and current
- Telemetry status read-back with processor interrupt
- Comprehensive set of configurable features
PowiGaN Technology
- PI’s proprietary gallium nitride technology
- Up to 100 W output without heatsinks
- INN3378, INN3379 and INN3370
Highly Integrated, Compact Footprint
- Multi-mode Quasi-Resonant (QR) / CCM flyback controller, high-voltage switch, secondary-side sensing and synchronous rectifier driver
- Optimized efficiency across line and load range
- Integrated FluxLink, HIPOT-isolated, feedback link
- Instantaneous transient response
- Drives low-cost N-channel FET series load switch
- Integrated 3.6 V supply for external MCU
- 4.7 Ω ultra-fast SR pull-down resistance (Avaliable with H302 parts)
EcoSmart – Energy Efficient
- Less than 30 mW no-load including line sense and MCU
- Easily meets all global energy efficiency regulations
- Low heat dissipation
Advanced Protection / Safety Features
- Input voltage monitor with accurate brown-in/brown-out and overvoltage protection
- Output OV/UV fault detection with independently configured responses
- Open SR FET gate detection
- Hysteretic thermal shutdown
- Programmable watchdog timer functionality for system faults
- Telemetry for power supply status and fault monitoring
- IS pin short/output short-circuit fault detection (H302 parts)
Full Safety and Regulatory Compliance
- Reinforced insulation
- Isolation voltage >4000 VAC
- 100% production HIPOT compliance testing
- UL1577 and TUV (EN60950, EN62368) safety approved
Green Package
- Halogen free and RoHS compliant
Applications
- High efficiency USB PD 3.0 + PPS/QCA adapters
- Multiprotocol adapters including QuickCharge, AFC, FCP, SCP
- Direct-charge mobile device chargers
- Multi-chemistry tool and general purpose battery chargers
- Adjustable CV and CC LED ballast
Specifications
| Output Power (Max) - Open Frame, 230V | 45.00 W |
| Output Power (Max) - Enclosed, 230V | 40.00 W |
| Output Power (Max) - Enclosed, Univ | 36.00 W |
| Output Power (Max) - Open Frame, Univ | 40.00 W |
| Switching Frequency (min) | 25.00 kHz |
| Switching Frequency (max) | 95 kHz |
| Breakdown Voltage | 725 V |
| Voltage - Output (Min) | 3.00 V |
| Voltage - Output (Max) | 24.00 V |
| Voltage - Input (Min) | 85 V |
| Voltage - Input (Max) | 265 V |
| Auto-Restart & Overvoltage Response |
Auto-restart
Latch Off
|
| Cable Drop Compensation | X |
| IC Package | InSOP-24D |
| Internal Switch | Yes |
| Over-Temperature Response | Hysteretic |
| Temperature - Operating (Min) | -40 °C |
| Temperature - Operating (Max) | 150 °C |
| Control Scheme | Fluxlink |
| Protection Features |
Overtemperature
Open SR FET Detection
Input Overvoltage
Input Undervoltage
Output Overvoltage
Output Overload
|
| Output Profile | CV/CC |
| Topology | Flyback |
| Product Sub-Type | PMIC |
| MSL Rating | 3 |
| Secondary Response |
Auto-restart
Latch Off
|
