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Onsemi NCV7685 | Demoboard STR-NCV7685-AUTO-GEVB
12 Channels 60 mA LED Linear Current Driver I2C Controllable for Automotive Applications
Overview
| Topology | Buck Converter |
| IC revision | 2 |
Description
The NCV7685 consists of twelve linear programmable constant current sources with common reference. The part is designed for use in the regulation and control of LED for automotive applications. The NCV7685 allows 128 different duty cycle levels adjustable using pulse width modulation (PWM) independently for each output channel programmable via I2C serial interface. PWM frequency can be chosen in four different configurations up to 1200 Hz. The device can be used with micro−controller applications using the I2C bus or in stand−alone applications where a choice could be done in between 2 different static configuration settings. The IC also provides 3.3 V voltage reference to the application for loads up to 1 mA. LED brightness level is easily programmed using an external resistor. Each channel has an internal circuitry to detect open−load conditions with an optional auto−recovery mode. If one driver is in open−load condition, all other channels could be turned off according to the programmable bit setting. The device is available in small body size SSOP24−EP package.
Features
- 12 Common Current Programmable Sources up to 60 mA
- Independent PWM Duty Cycle Control for each Channel via PC
- Common PWM Duty Cycle Control via I2C
- On−Chip 150, 300, 600 and 1200 Hz PWM
- Open LED String Diagnostics
- Low Dropout Operation for Pre−Regulator Applications
- Single Resistor for Current Set Point
- Voltage Reference 3.3 V/1 mA
- 8 Bits I2C Interface with CRC8 Error Detection
- OTP Bank for Stand−Alone Operation (2 Configurations)
- Output Enable Pin
- Detection and Protection Against Open Load and Under−Voltage
- Over Temperature Detection and Protection
- Low Emission with Spread Spectrum Oscillator
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
- SSOP24−EP Packaging
Typical applications
- Entry Level LED Tail Lights. NCV7685 used without MCU, Option Level LED Tail Lights with Sequential Turn Indicator. NCV7685 controlled by Low End MCU, High End Pixelized LED Tail Light with Full Animation Capabilities
- RGB LED driver (4 x RGB per NCV7685)
- Dashboard Applications
- Turn Signal and Other Externally Modulated Applications
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(mm) | To | Ti | L(µH) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | IRP,40K(A) | Mount | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | ΦV typ.(lm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | CRI typ. | Size | Z @ 100 MHz(Ω) | Zmax(Ω) | IR(mA) | RDC(Ω) | Type | Version | SW(mm) | Flammability Rating | Pins | Center pin Ø (Value)(mm) | Plug OD(mm) | Working Voltage(V (AC)) | Packaging | Interface Type | Variant | Gender | Operating Temperature | H(mm) | Operation Force(g) | Electrical Life(Cycles) | Actuator Color | Washable | Vaporphase process | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, – | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Length1.6 mm | – | – | – | – | – | – | – | – | MountSMT | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | – | Luminous Intensity [typ.]250 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, – | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Length1.6 mm | – | – | – | – | – | – | – | – | MountSMT | Dominant Wavelength [typ.]590 nm | Emitting ColorYellow | Peak Wavelength [typ.]595 nm | – | Luminous Intensity [typ.]120 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, – | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Length1.6 mm | – | – | – | – | – | – | – | – | MountSMT | Dominant Wavelength [typ.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | – | Luminous Intensity [typ.]430 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, – | Downloads28 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Length1.6 mm | – | – | – | – | – | – | – | – | MountSMT | Dominant Wavelength [typ.]470 nm | Emitting ColorBlue | Peak Wavelength [typ.]465 nm | – | Luminous Intensity [typ.]145 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | |||
 | WE-CBA SMT EMI Suppression Ferrite Bead, 2 mm, – | Downloads10 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBA SMT EMI Suppression Ferrite Bead | Length2 mm | – | – | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | – | Size0805 | Impedance @ 100 MHz220 Ω | Maximum Impedance290 Ω | Rated Current2000 mA | DC Resistance0.05 Ω | TypeHigh Current | VersionSMT | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | Height0.9 mm | – | – | – | – | – | |||
 | WE-MAIA SMT Power Inductor, 3 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAIA SMT Power Inductor | Length3 mm | – | – | Inductance22 µH | Saturation Current @ 10%1.1 A | Saturation Current @ 30%2 A | DC Resistance1040 mΩ | Self Resonant Frequency12 MHz | Performance Rated Current0.85 A | MountSMT | – | – | – | – | – | – | – | – | – | Size3015 | – | – | – | – | – | VersionSMT | – | – | Pins2 | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | Height1.5 mm | – | – | – | – | – | ||||
 | WL-SWTP SMT White Top view PLCC, 3 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SWTP SMT White Top view PLCC | Length3 mm | – | – | – | – | – | – | – | – | MountSMT | – | Emitting ColorCool White | – | Luminous Flux [typ.]22 lm | – | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]120 ° | Color Rendering Index [typ.]90 | Size3022 | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | Operating Temperature -40 °C up to +85 °C | Height0.8 mm | – | – | – | – | – | ||||
 | WA-SCRW Pan Head Screw w. cross slot M3, 5 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SCRW Pan Head Screw w. cross slot M3 | Length5 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Flammability RatingUL94 V-0 | – | – | – | – | PackagingBulk | – | – | – | Operating Temperature -30 °C up to +85 °C | – | – | – | – | – | – | |||
 | 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 | – | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current3000 mA | – | TypeStraight | – | – | – | Pins2 | – | – | Working Voltage250 V (AC) | PackagingBag | – | – | GenderPin Header | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | |||
 | WE-PD SMT Power Inductor, 7.3 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Length7.3 mm | – | – | Inductance33 µH | Saturation Current @ 10%1.15 A | Saturation Current @ 30%1.45 A | DC Resistance240 mΩ | Self Resonant Frequency16 MHz | Performance Rated Current1.85 A | MountSMT | – | – | – | – | – | – | – | – | – | Size7332 | – | – | – | – | – | VersionRobust | – | – | Pins2 | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | Height3.2 mm | – | – | – | – | – | ||||
 | 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 | – | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current3000 mA | – | TypeStraight | – | – | – | Pins3 | – | – | Working Voltage250 V (AC) | PackagingBag | – | – | GenderPin Header | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | |||
 | WA-SPAII Plastic Spacer Stud, metric, internal/ internal, 10 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SPAII Plastic Spacer Stud, metric, internal/ internal | Length10 mm | – | Inner ThreadM3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | SW6 mm | Flammability RatingUL94 HB | – | – | – | – | PackagingBag | – | – | – | Operating Temperature -30 °C up to +110 °C | – | – | – | – | – | – | |||
 | WR-PHD Pin Header - Single, 12.7 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Length12.7 mm | – | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current3000 mA | – | TypeStraight | – | – | – | Pins5 | – | – | Working Voltage250 V (AC) | PackagingBag | – | – | GenderPin Header | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | |||
 | WA-SPAIE Plastic Spacer Stud, metric, internal/ external, 15 mm, M3 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SPAIE Plastic Spacer Stud, metric, internal/ external | Length15 mm | Outer ThreadM3 | Inner ThreadM3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | SW6 mm | Flammability RatingUL94 HB | – | – | – | – | PackagingBag | – | – | – | Operating Temperature -30 °C up to +110 °C | – | – | – | – | – | – | |||
 | WR-PHD Socket Header - Dual, 30.98 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Socket Header - Dual | Length30.98 mm | – | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current3000 mA | – | TypeAngled | – | – | – | Pins24 | – | – | Working Voltage250 V (AC) | PackagingTray | – | – | GenderSocket Header | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | |||
 | WR-DC Power Jacks, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-DC Power Jacks | – | – | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current5000 mA | – | TypeRight Angled | – | – | – | – | Center pin Ø2 mm | Recommended Plug outer Ø5.5 mm | Working Voltage30 V (AC) | PackagingBag | – | – | – | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | – | |||
 | WS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current50 mA | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | Operating Temperature -40 °C up to +85 °C | Height1.7 mm | Operation Force350 g | Electrical Life200000 Cycles | Actuator ColorBlue | WashableNo | Vaporphase processnot specified | |||
 | WR-USB Mini/Micro Connectors, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Mini/Micro Connectors | – | – | – | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current1000 mA | – | TypeHorizontal | – | – | – | Pins5 | – | – | Working Voltage30 V (AC) | PackagingTape and Reel & Mylar | Interface TypeType B | Variantwith Pads & Pegs | GenderReceptacle | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | |||
 | WA-SNTE Snap-In Stop Spacer for Printed Circuit Boards, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SNTE Snap-In Stop Spacer for Printed Circuit Boards | – | – | Inner ThreadM3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | SW5.5 mm | Flammability RatingUL94 V-2 | – | – | – | – | PackagingBag | – | – | – | Operating Temperature -30 °C up to +85 °C | Height2.4 mm | – | – | – | – | – | |||
 | WL-SMTD SMT Mono-color TOP LED Diffused Dome, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMTD SMT Mono-color TOP LED Diffused Dome | – | – | – | – | – | – | – | – | – | MountSMT | Dominant Wavelength [typ.]620 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | – | Luminous Intensity [typ.]16000 mcd | Forward Voltage [typ.]2.4 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]30 ° | – | Size3528 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +100 °C | – | – | – | – | – | – | ||||
| WL-SMTD SMT Mono-color TOP LED Diffused Dome, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMTD SMT Mono-color TOP LED Diffused Dome | – | – | – | – | – | – | – | – | – | MountSMT | Dominant Wavelength [typ.]590 nm | Emitting ColorYellow | Peak Wavelength [typ.]592 nm | – | Luminous Intensity [typ.]15000 mcd | Forward Voltage [typ.]2.4 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]30 ° | – | Size3528 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +100 °C | – | – | – | – | – | – |