Linear LED Drivers | NCV7684

LED Linear Current Driver, 12 Channels, 60 mA, I2C Controllable

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Overview

The NCV7684 consists of twelve linear programmable constant current sources. The part is designed for use in the regulation and control of LED for automotive applications. The NCV7684 allows 128 different current levels adjustable with pulse width modulation (PWM) programmable via I2C serial interface. 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 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.

  • Dashboard Applications
  • Rear Combination Lamps (RCL)
  • Daytime Running Lights (DRL)
  • Fog Lights
  • Center High Mounted Stop Lamps (CHMSL) Arrays
  • Turn Signal and other Externally Modulated Applications

  • Automotive

  • 12 programmable Current Sources Up to 60 mA
  • Common PWM Gain Control via I2C
  • On−chip 125, 250, or 500 Hz PWM
  • Open LED String Diagnostic
  • 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)
  • Detection and Protection Against Open Load and Under−Voltage
  • Over Temperature Detection and Protection
  • Low Emission with Spread Spectrum Oscillator
  • AEC Q100 Qualified
  • SSOP24−EP Packaging
  • This is a Pb−Free Device

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NCV7684DQR2G

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CAD Model

Pb

A

H

P

SSOP-24 NB EP

940AP

3

260

REEL

2500

Y

40

60

3

12

$1.2733

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Reliability Data

Die Related Summary Data

Device: NCV7684DQR2G

Equivalent to wafer fab process: I3T

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Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

I3T

4

4350769675

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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