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Texas Instruments LMR38020 | Demoboard LMR38020
Auxiliary Power Supply Design Based on LMR38020 Fly-Buck in Solar Micro Inverter
Details
| Topologie | Buck mit zwei Ausgangsspannungen |
| Eingangsspannung | 16-60 V |
| Schaltfrequenz | 200-2200 kHz |
| Ausgang 1 | 12 V / 0.08 A |
| Ausgang 2 | 12 V / 0.08 A |
| IC-Revision | 1 |
Beschreibung
The LMR38020 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. The LMR38020 operates during input voltage dips as low as 4.2 V, at nearly 100% duty cycle if needed, making the device an excellent choice for wide input industrial applications and MHEV/EV systems.
Eigenschaften
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- Configured for rugged industrial applications
- 4.2-V to 80-V input voltage range
- 2-A continuous output current
- Ultra-low 40-µA operating quiescent current
1.5-mm distance between VIN and GND pin
- 200-kHz to 2.2-MHz adjustable switching frequency
- Frequency synchronization to external clock
- Spread spectrum option for reduced EMI
- 97% maximum duty cycle
- Support start-up with pre-biased output
- ±1.0% tolerance voltage reference at room temperature
- Precision enable
- Easy to use device with integrated compensation network enabling low BOM count
- Integrated synchronous rectification
- 8-pin HSOIC with PowerPAD™ integrated circuit package
- PFM and forced PWM (FPWM) options
- Available in 1-A, LMR38010
- Create a custom design using the LMR38020 with the WEBENCH® Power Designer
Typische Anwendungen
- Industrial transport, Factory automation and control
- infrastructure and networking
- Power delivery
Weiterführende Informationen
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