MIC4826 |
RFQ for MIC4826 Required Field |
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| Technical/Catalog Information | MIC4826BMM |
| Vendor | Micrel Inc |
| Category | Integrated Circuits (ICs) |
| Package / Case | 8-MSOP, Micro8?, 8-uMAX, 8-uSOP, |
| Packaging | Tube |
| Voltage - Supply | 1.8 V ~ 5.5 V |
| Type | EL Lamp Driver |
| Current - Supply | 21A |
| Current - Output | - |
| Frequency | 60 ~ 1000 Hz |
| Operating Temperature | -40°C ~ 85°C |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | MIC4826BMM MIC4826BMM |
| Product | Manufacturers | Pack | D/C |
| MIC4826 | - | MSOP-8 | 04+ |
Micrel's MIC4826 is a high output voltage, DC to AC con- verter, designed for driving EL (Electroluminescent) lamps. The device operates from an input voltage range of 1.8V to 5.5V, making it suitable for 1-cell Li Ion and 2- or 3-cell alkaline/NiCad/NiMH battery applications. The MIC4826 con- verts a low voltage DC input to a 160VPP AC output signal that drives the EL lamp.
The MIC4826 is comprised of two stages: a boost stage, and an H-bridge, lamp driver, stage. The boost stage steps the input voltage up to +80V. The H-bridge stage then alternately
switches the +80V output to each terminal of the EL lamp, thus creating a 160V PP AC signal to drive the EL lamp andgenerate light.
The MIC4826 features separate oscillators for the boost- and H-bridge stages. External resistors independently set the operating frequency of each stage. This flexibility allows the EL lamp circuit to be optimized for maximum efficiency and brightness.
The MIC4826 uses a single inductor and a minimum number of external components, making it ideal for portable, space- sensitive applications. The MIC4826 is available in an 8-pin MSOP package with an ambient temperature range of 40°C to +85°C.
Typical Application |
Features |
| LCD panel backlight Cellular phones PDAs Pagers Calculators Remote controls Portable phones | 1.8V to 5.5V DC input voltage 160VPP regulated AC output waveform Independently adjustable EL lamp frequency Independently adjustable boost converter frequency0.1A shutdown current |
