MFG:Allegro Microsystems Inc Category:Integrated Circuits (ICs) Package Cooled:QFN D/C:05+
A843, A8430, A8430EEK Datasheet download
Category: Integrated Circuits (ICs)
MFG: Allegro Microsystems Inc
Package Cooled: QFN
D/C: 05+
Description: IC WHITE LED DRIVER 5-MLP
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PDF/DataSheet Download
Datasheet: A8430
File Size: 336958 KB
Manufacturer: ALLEGRO [Allegro MicroSystems]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: A8430
File Size: 336958 KB
Manufacturer: ALLEGRO [Allegro MicroSystems]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: A8430EEK
File Size: 336958 KB
Manufacturer: ALLEGRO [Allegro MicroSystems]
Download : Click here to Download
The A8430 is a noninverting boost converter that steps-up the input voltage, to provide a programmable constant current output at up to 36 V for driving white LEDs in series. Driving LEDs in series ensures identical currents and uniform brightness. Up to four white LEDs can be driven at 20 mA from a single cell Li-ion or a multicell NiMH power source. Up to seven white LEDs can be driven by increasing the supply voltage up to 10 V.
The A8430 incorporates a power switch and feedback sense amplifier to provide a solution with minimum external components. The output current can be set by adjusting a single external sense resistor and can be varied with a voltage or filtered PWM signal when dimming control is required. The high switching frequency of 1.2 MHz allows the use of small inductor and capacitor values.
The A8430 is provided in a 5-pin 3 mm x 3 mm MLP package (part number suffix EK), that has a nominal height of only 0.75 mm. The lead-free version (part number suffix EK-T) has 100% lead-free matte tin leadframe plating.
| Technical/Catalog Information | A8430EEK |
| Vendor | Allegro Microsystems Inc |
| Category | Integrated Circuits (ICs) |
| Package / Case | 5-MLPD |
| Packaging | Tube |
| Current - Output / Channel | 20mA |
| Number of Outputs | 1 |
| Type | Backlight, White LED |
| Voltage - Supply | 2.5 V ~ 10 V |
| Voltage - Output | 36V |
| Topology | Switched Inductor, Step-Up (Boost) |
| Frequency | 1.2MHz |
| Operating Temperature | -40°C ~ 85°C |
| Efficiency | - |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | A8430EEK A8430EEK |
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