CCM+QR SSR Flyback Converter
for Adapters and Fast Chargers
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- Parameters
- Features
- Description
| Part number |
SY22837HZP |
| Pout (max) (W) |
45 |
| HV startup |
YES |
| Operation mode |
CCM/QR |
| Integrated FETs type |
GaN |
| Breakdown voltage (V) |
700 |
| Ron (typ) (mΩ) |
0.365 |
| No load loss (mW) |
<5 |
| Switching frequency (min)(kHz) |
28 |
| Switching frequency (max)(kHz) |
90 |
| Features |
SSR CV,Wide VCC range,Pseudo fixed frequency,Current limit |
| Package |
SSOP9E |
| Operating temperature range(°C) |
-40 to 125 |
| Functional safety category |
|
- Integrated 700V/0.48Ω Power GaN FET
- Wide VCC Operating Range: 10V to 85V
- High Voltage Startup
- No Load Loss < 5mW
- Mixed CCM+QR Control Architecture
- Forced QR Operating at High Line Voltages
- Quasi-Fixed Frequency Control to Eliminate Slope Compensation in CCM
- 90kHz Fixed Switching Frequency under CCM
- 90kHz Switching Frequency Limit under QR Mode
- Frequency Foldback at low loads for High Average Efficiency
- Minimum Switching Frequency Limited to 28kHz eliminates audible noise
- Burst Control for High Light Load Efficiency
- Adaptive Peak Current Limit for LPS
- Comprehensive Protections Including BO, Output OVP/UVP, VCC OVP, OLP, OTP and Secondary SR MOS SCP
- Internal Soft-Start
- Compact Package: SSOP9E
Evaluation Board
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Photo of evaluation board
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Photo of evaluation board
The EVB_SY22837HZP is intended for evaluating CCM+QR SSR Flyback Switcher
