NXP Semiconductors TEA18362T SMPSコントローラIC
NXP Semiconductors TEA18362T GreenChip SMPSコントローラICは、最大75Wを給電できるフライバック電源装置用です。高電力レベルで、TEA18362Tは、擬似共振（QR）モードで動作します。低電力レベルで、このコントローラは、周波数低減（FR）または非連続導通モード（DCM）に切り替え、ピーク電流のピーク電流を～25%に制限します。低電力レベルで、スイッチング周波数が25kHz以下になると、フライバックコンバータがバーストモードに切り替わります。低電力での高い効率性、および卓越した無負荷電力性能が保証されます。
特徴
- SMPS Controller IC for low-cost applications
- Large supply voltage range (up to 30V)
- Integrated high-voltage start-up
- Continuous VCC regulation during start-up and protection via the HV pin, allowing a minimum VCC capacitor value
- Reduced opto current in burst mode enabling low no-load power consumption
- Operating frequencies in all operating modes are outside the audible area
- Integrated X-capacitor discharge
- Adjustable soft start
- Power-down mode via the PROTECT pin
- Low supply current during normal operation (0.6mA without load)
- Low supply current during the non-switching state in burst mode (0.2mA)
- Valley switching for minimum switching losses
- Frequency reduction with fixed minimum peak current to maintain high efficiency at low output power levels
- Mains voltage-independent OverPower Protection (OPP)
- OverTemperature Protection (OTP)
- Integrated overpower time-out
- Continuous mode protection using demagnetization detection
- Accurate Overvoltage Protection (OVP)
- General-purpose input for latched protection; for use with system OverTemperature Protection (OTP)
アプリケーション
- Efficient and cost-effective power supplies up to 75W
公開: 2015-08-20
| 更新済み: 2022-03-11