LM3431-REF, CCFL to LED Conversion Power Supply
Progetto di riferimento usando la parte LM3431MH di Texas Instruments
Immagine
1 / 1
Documenti associati
Per prodotti finali
- LCD Backlighting
Per contattare il Servizio Clienti.
- LM3431-REF, CCFL to LED Conversion Power Supply. Backlighting in portable device displays has historically utilized difficult-to-power cold cathode-fluorescent (CCFL) tubes. The tubes run on alternating current (AC) and need a large initial voltage of typically greater than 1 kV in order to fire them. Once they have fired, their operating voltage drops to under a kV. Because a notebook computer, for example, typically operates on low DC voltages (12V, 5V, 3.3V, etc.), a Royer oscillator must be used to transform this low voltage to the high-voltage AC required by the CCFL. The high voltages in the system are a potential safety hazard
Funzioni principali
-
Input Voltage8 to 16 V
-
Output Voltage20 V
-
Output Current0.06 A
-
Number of Derived Elements6
Parti in primo piano (5)
| Numero parte | Produttore | Tipo | Per contattare il Servizio Clienti. | |||
|---|---|---|---|---|---|---|
|
LMC6572AIM | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Dual Low Voltage Amplifier R-R O/P 11V 8-Pin SOIC Tube | ACQUISTA | |
|
LM3431MHX/NOPB | Texas Instruments | LED Drivers | LED Driver 20 Segment 28-Pin HTSSOP EP T/R | ACQUISTA | |
|
|
LM3431MHX/NOPB | Texas Instruments | LED Drivers | LED Driver 20 Segment 28-Pin HTSSOP EP T/R | ACQUISTA | |
|
|
LM3431MH/NOPB | Texas Instruments | LED Drivers | LED Driver 20 Segment 28-Pin HTSSOP EP Tube | ACQUISTA | |
|
|
LM3431MH/NOPB | Texas Instruments | LED Drivers | LED Driver 20 Segment 28-Pin HTSSOP EP Tube | ACQUISTA | |