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IC manufacturers Diodes Incorporated

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reference designAL5887 | Demoboard AL5887EV1

Diodes Incorporated AL5887 | Demoboard AL5887EV1

I2C/SPI 36-Channel RGB LED Driver

Overview

TopologyBuck Converter
Input voltage2-5 V
Output 15.5 V / 0.07 A
IC revision1

Description

The DIODES™ AL5887 is comprised of 36 programmable LED current channels each with internal 12-bit PWM for color and brightness control through SPI or I2C digital interface. AL5887 is ideal for up to 12 RGB LED modules lighting applications with 3 programmable banks (A, B, C) for software control of each color. An external resistor can set up the global output current of all 36 channels. Each channel current can digitally be configured up to 70mA under the thermal limitation of the package.Features of the AL5887 are controlled via SPI/I2C digital interface. Using a dedicated pin INT_SEL to select either SPI or I2C protocols. The AL5887 has a 30kHz, 12-bit PWM generator for each channel, as well as channel/module independent color mixing and brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown IQ Power Saving Mode and easy software programming.

Features

  • Input Voltage: 2.7V to 5.5V
  • 36 Precision LED Current Sinks
  • OUT Pins Voltage Max. 5.5V
  • A Maximum of up to 70mA per Channel Current
  • Device to Device and Channel to Channel Current Accuracy: < 2% at 7mA to 70mA, and < 3.5% at 1mA to 7mA
  • 12-Bit (4096 Steps), 30kHz PWM Generator Integrated for Each Channel
  • PWM Phase Shifting
  • 6-Bit Global Current Dimming
  • Independent Color-Mixing Register per Channel
  • Independent Brightness Control Register per RGB Module
  • Optional Logarithmic- or Linear-Scale Brightness Control
  • Three Programmable Banks (A, B, C) Serial Digital Interface (I2C/SPI)
  • Support 400kHz I2C Interface (Default)
  • Two External Hardware Address Pins Allow Connecting up to Four Devices (I2C Only)
  • 4MHz SPI Compatible Digital Interface (INT_SEL Pin = HIGH)
  • Broadcast Slave Address Allows Configuring Multiple Devices Simultaneously
  • Auto-Increment Allows Writing or Reading Consecutive Registers Within One Transmission
  • Diagnosis and Protections
  • Open Drain Fault Pin for Fault Indication
  • Individual LED Channel Open/Short Detection
  • Pre-UVLO Warning & Undervoltage Lockout (UVLO)
  • Overtemperature Protection (OTP) with Pre-OTP Warning
  • Digital POR Indicator
  • Individual Channel Fault Masking
  • Ultra-Low Quiescent Current:
  • Shutdown Mode: 1μA (Max.) When EN Low > 25ms
  • Power-Saving Mode: 15μA (Max.) When EN High and All LEDs Off for > 30ms
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1& 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative.

Typical applications

  • Infotainment displays, Electric vehicle charging stations
  • Smart home appliances

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
Interface Type
Type
Gender
Pins
Mount
PCB Thickness(mm)
IR(A)
Working Voltage(V (DC))
G(mm)
Samples
150080VS75000
WL-SMCW SMT Mono-color Chip LED Waterclear, 570 nm, Bright Green
Simu­lation
Downloads7 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 7 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]570 nm
Emitting ColorBright Green 
Peak Wavelength [typ.]572 nm
Luminous Intensity [typ.]40 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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Size0805 
Operating Temperature -40 °C up to +85 °C
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Length2 mm
Width1.25 mm
Height0.7 mm
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PackagingTape and Reel 
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MountSMT 
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885012207009
WCAP-CSGP MLCCs 10 V(DC), –, –
Simu­lation
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
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Capacitance2.2 nF
Capacitance±10% 
Rated Voltage10 V (DC)
Size0805 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height0.8 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
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632723100011
WR-USB Type C Connectors, –, –
Simu­lation–
Downloads6 files

EDA models: Components ZIP

CAD files ZIP

Download all 6 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-USB Type C Connectors
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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PackagingTape and Reel 
Interface TypeType C 
TypeHorizontal 
GenderReceptacle 
Pins24 
MountTHR 
PCB Thickness1 mm
Rated Current5 A
Working Voltage48 V (DC)
Pin length1.5 mm
61300411121
WR-PHD Pin Header - Single, –, –
Simu­lation–
Downloads7 files

EDA models: Components ZIP

CAD files ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length10.16 mm
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PackagingBag 
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TypeStraight 
GenderPin Header 
Pins4 
MountTHT 
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Rated Current3 A
Working Voltage250 V (DC)
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