The SP4405 is a high voltage output DC-AC inverter specifically designed to drive electroluminescent lamps to backlight liquid crystal displays, keypads, and backlit readouts used in battery operated portable equipment. The SP4405 will operate from a +2.2V to +4.5V battery source. The device features an internal feedback loop that regulates the lamp voltage .
an internal feedback loop that regulates the lamp voltage output to 160VPP (typical) with varying supply voltages to maintain constant EL lamp brightness over the life of the battery. The device also has a low power shutdown mode which draws less than 50nA (typical), ideal for low power portable products. One external inductor is required to generate the high voltage AC output. One external resistor is used to set the internal oscillator frequency. The SP4405 is ideal for portable applications such as pagers, cellular phones, PDAs, and other portable applications using LCDs in dim or low light.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | SP4400 |
SamHop Microelectronics |
Dual N-Channel Enhancement Mode Field Effect Transistor | |
2 | SP4401 |
SamHop |
P-Channel Enhancement Mode Field Effect Transistor | |
3 | SP4403 |
Sipex |
Low Voltage Electroluminescent Lamp Driver | |
4 | SP44-6 |
SIPAT |
44MHz SAW Filter 6MHz Bandwidth | |
5 | SP44-8 |
SIPAT |
SAW Filter Electrical Characteristic | |
6 | SP4412 |
SamHop Microelectronics |
N-Channel Enhancement Mode Field Effect Transistor | |
7 | SP4412A |
Sipex |
Electroluminescent Lamp Driver | |
8 | SP4414 |
Sipex |
Low Cost Electroluminescent Lamp Driver | |
9 | SP4415 |
Sipex Corporation |
Electroluminescent Lamp Driver with Selectable Level Outputs | |
10 | SP4416 |
Sipex |
Electroluminescent Lamp Driver with 4-Level Light Intensity Selection Feature | |
11 | SP4422A |
Sipex |
Electroluminescent Lamp Driver | |
12 | SP4423 |
Sipex |
Electroluminescent Lamp Driver Low Power Applications |