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ON Semiconductor CAT3649AGEVB User Manual

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CAT3649AGEVB
CAT3649 Evaluation Board
User's Manual
Introduction
This document describes the CAT3649 evaluation board
for
the
ON
Semiconductor
Quad−Mode LED Driver with an Ambient Light Sensor
circuit, NOA1211, that can control the LEDs intensity
proportionally with the ambient light intensity.
The functionality and major parameters of the CAT3649
can be evaluated with the CAT3649 evaluation board.
A detailed description and electrical characteristics are
available in the CAT3649 and NOA1211 datasheets.
© Semiconductor Components Industries, LLC, 2012
November, 2012 − Rev. 1
CAT3649 6−Channel
Figure 1. CAT3649 Evaluation Board
Figure 2. Ambient Light Sensor Mode Block Diagram
EVAL BOARD USER'S MANUAL
Board Hardware
The evaluation board contains one CAT3649 in an
application circuit driving a total of six LEDs and one
NOA1211. The Ambient Light Sensor is connected to the
LED driver via the C8051F321 microcontroller, which is
illustrated in Figure 2.
1
http://onsemi.com
Publication Order Number:
EVBUM2164/D

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Summary of Contents for ON Semiconductor CAT3649AGEVB

  • Page 1 CAT3649AGEVB CAT3649 Evaluation Board User's Manual Introduction http://onsemi.com This document describes the CAT3649 evaluation board Semiconductor CAT3649 6−Channel EVAL BOARD USER’S MANUAL Quad−Mode LED Driver with an Ambient Light Sensor circuit, NOA1211, that can control the LEDs intensity Board Hardware proportionally with the ambient light intensity.
  • Page 2 CAT3649AGEVB Figure 3. CAT3649AGEVB Board Schematic Table 1. BILL OF MATERIALS* Substi- Desig- Toler- Manufacturer Part tution Description Value Footprint Manufacturer nator ance Number Allowed 6 Channel LED Driver TQFN16 CAT3649HV3-GT2 Semiconductor Ambient Light Sensor 3 x 3 mm NOA1211...
  • Page 3: Operating Procedure

    CAT3649AGEVB Table 1. BILL OF MATERIALS* Substi- Desig- Toler- Manufacturer Part tution nator Description Value ance Footprint Manufacturer Number Allowed SMD Resistor 1/8 W, 100 kW 0805 Vishay RL0805K100-1 SMD Resistor 1/8 W, 4.7 kW 1210 Vishay RL0805K004.7-1 SMD Resistor...
  • Page 4: Graphical User Interface (Gui)

    CAT3649AGEVB Graphical User Interface (GUI) If the option button “Select” of the frame of the Ambient After connecting the CAT3649 EVAL board to the PC via Light Sensor is pressed while in PWM mode, the “Gain” cable, user program frame will be enabled.
  • Page 5 CAT3649AGEVB Figure 5. GUI – ADIM Mode Figure 6. GUI – ADIM Mode, Device Enabled Figure 7. GUI – Pulses on ADIM Input Figure 8. GUI – ADIM Shutdown Command Figure 9. GUI – NOA1211 Selection Figure 10. GUI – NOA1211 Power On...
  • Page 6 CAT3649AGEVB TEST PROCEDURE FOR THE CAT3649AGEVB EVALUATION BOARD 1. Set the switch K1 in “OFF” position. 13. On the GUI, select the CAT3649 ADIM and then, 2. Verify that shunts are installed on jumpers J1 to J6 “EN/DIS” button. On the board the red LED and in the top position.