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Details
| Topologie | Abwärts- und Aufwärtswandler |
| Eingangsspannung | 4.5-36 V |
| Schaltfrequenz | 100-2000 kHz |
| Ausgang 1 | -12 V / 1.1 A |
| Ausgang 2 | 15 V / 0.8 A |
| Ausgang 3 | 12 V / 1.1 A |
| Ausgang 4 | -15 V / 0.8 A |
| IC-Revision | 1.0 |
Beschreibung
We have developed a positive / negative power supply reference board that is ideal for high-precision analog circuits used in audio equipment and industrial equipment.In a system equipped with audio equipment, PLC, and sensors, when performing highly accurate analog processing, an operational amplifier that requires positive and negative power supplies is required to secure the dynamic range. In that case, ± 5V, ± 12V, ± 15V, etc. are necessary, and the power supply circuit may be large and complex.This reference board uses a single analog power supply controller IC (model: LT8471) to design two positive and negative power supplies. This makes the analog power supply very compact. In addition, since this reference circuit supports buck / boost / buck-boost, it is possible to realize a plus / minus power supply for operational amplifiers by supporting a wide range of input voltages.
Eigenschaften
- Built-in dual 2A and single 0.5A / 50V power switch
- Both positive and negative outputs can be generated from a single input voltage
- Multi-topology 2-channel configuration such as step-down, step-up, SEPIC, ZETA, flyback, and inverting
- Switching frequency can be set from 100kHz to 2MHz
- Reduce input ripple by anti-phase switching
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IR(A) | ISAT(A) | Montageart | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | L1(µH) | L2(µH) | IR 1(A) | IR 2(A) | ISAT 1(A) | RDC1 typ(Ω) | RDC2 typ(Ω) | RDC1 max(Ω) | RDC2 max(Ω) | fres(MHz) | Typ | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Speicherdrossel, 12 µH, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LHMI SMT Speicherdrossel | Induktivität12 µH | – | – | MontageartSMT | Performance Nennstrom9.1 A | Sättigungsstrom 112.9 A | Sättigungsstrom @ 30%26.6 A | Gleichstromwiderstand20 mΩ | – | – | – | – | – | – | – | – | – | Eigenresonanzfrequenz7.6 MHz | – | ||||
 | WE-TPC SMT-Speicherdrossel, 15 µH, 0.72 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TPC SMT-Speicherdrossel | Induktivität15 µH | Nennstrom0.72 A | Sättigungsstrom0.9 A | MontageartSMT | – | – | – | Gleichstromwiderstand400 mΩ | – | – | – | – | – | – | – | – | – | Eigenresonanzfrequenz32 MHz | – | ||||
 | WE-DD SMT-Doppeldrossel, 15 µH, 3.3 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-DD SMT-Doppeldrossel | Induktivität15 µH | Nennstrom3.3 A | Sättigungsstrom6.1 A | – | – | – | – | Gleichstromwiderstand55 mΩ | Induktivität 115 µH | Induktivität 215 µH | Nennstrom 13.3 A | Nennstrom 23.3 A | Sättigungsstrom [1]6.1 A | Gleichstromwiderstand 10.041 Ω | Gleichstromwiderstand 20.041 Ω | Gleichstromwiderstand 10.055 Ω | Gleichstromwiderstand 20.055 Ω | Eigenresonanzfrequenz14 MHz | TypGerade |