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Allegro Microsystems A80804 | Demoboard APEK80804KET
4-Channel High-Power Linear LED Driver With Individual PWM Control
Overview
| Topology | Other Topology |
Description
The A80804 demo board is designed to aid system designers with evaluating the operation and performance of Allegro’s A80804 and A80804-1 linear programmable current controllers. The A80804 and A80804-1 are capable of regulating current in four independent LED strings. The A80804 demo board is available in two configurations: one for the A80804 with VSENSE of 500 mV and one for the A80804-1 with VSENSE of 200 mV. The demo board will arrive with a mark on one of the silkscreen boxes in the top right of the demo board to identify which device the demo board was configured for. The demo board has four strings of three white LEDs.
Features
- Internal and external PWM dimming options
- Two ADIM pins for LED binning, NTC feedback, or hybrid analog/PWM dimming
- Adjustable integrated LED current derating for elevated VIN
- Integrated LED current derating for elevated IC junction temperature
- MINOUT signal for trimming pre-regulator to minimize power loss
- Selectable LED current slew rate limit during PWM dimming
- Extensive fault detection and protection
- Current sense voltage options of 500mV (A80804) for better BCI immunity or 200mV (A80804-1) for lower power dissipation in the sense resistors
Typical applications
- Automotive Medium-Power LED Lighting Systems, Fog Lights, Backup Lights, Daytime Running Lights, Position Lights, Sequential Lights
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(mm) | Flammability Rating | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | Z(mΩ) | ILeak(µA) | DF(%) | Ø D(mm) | Packaging | Pins | Type | Mount | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-PHD Pin Header - Single, 5.08 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Length5.08 mm | – | – | – | – | – | – | – | – | – | PackagingBag | Pins2 | TypeStraight | MountTHT | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | WR-PHD Pin Header - Single, 7.62 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Length7.62 mm | – | – | – | – | – | – | – | – | – | PackagingBag | Pins3 | TypeStraight | MountTHT | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | WR-PHD Pin Header - Dual, 7.62 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Dual | Length7.62 mm | – | – | – | – | – | – | – | – | – | PackagingBag | Pins6 | TypeStraight | MountTHT | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | WCAP-ASLI Aluminum Electrolytic Capacitors, 7.7 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ASLI Aluminum Electrolytic Capacitors | Length7.7 mm | – | Capacitance47 µF | Rated Voltage50 V (DC) | Endurance 2000 | Ripple Current230 mA | Impedance700 mΩ | Leakage Current23.5 µA | Dissipation Factor12 % | Diameter6.3 mm | Packaging15" Tape & Reel | – | – | MountV-Chip SMT | – | – | Operating Temperature -55 °C up to +105 °C | ||||
 | WA-SCRW Pan Head Screw w. cross slot M3, 8 mm, UL94 V-2 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SCRW Pan Head Screw w. cross slot M3 | Length8 mm | Flammability RatingUL94 V-2 | – | – | – | – | – | – | – | – | PackagingBulk | – | – | – | – | – | Operating Temperature -30 °C up to +85 °C |