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DC1039A-B

Description
board eval for ltc3207euf
CategoryDevelopment board/suite/development tools   
File Size733KB,8 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance  
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DC1039A-B Overview

board eval for ltc3207euf

DEMO CIRCUIT1039
QUICK START GUIDE
LTC3207/LTC3207-1
LTC3207/LTC3207-1
600mA Universal Multi-
Output LED/CAM Driver
DESCRIPTION
WARNING!
Do not look directly at operating LED.
This circuit produces light that can damage eyes.
Demonstration circuit 1039 is a 600mA Universal Multi-
Output LED/CAM Driver with six white LEDs, two RGB
LEDs, and a camera flash featuring the
LTC3207/LTC3207-1.
The LTC3207/LTC3207-1 is a low noise charge pump
designed to drive 12 universal LED (ULED) current
sources and one high current camera flash. The
LTC3207/LTC3207-1 requires only five small ceramic
capacitors to form a complete LED power supply and
current controller.
The maximum display currents are set with an internal
precision current reference. On/Off blinking, gradation,
and intensity are achieved via an I
2
C serial interface. See
the LTC3207/LTC3207-1 data sheet for more information
on this process. There are 64 dimming states available
for the universal LEDs and 16 dimming states for the
camera LED.
The charge pump optimizes efficiency based on the volt-
age across the LED current sources. The part powers up
in 1x mode and will automatically switch to boost mode
whenever any enabled LED current source begins to drop
out. The first dropout switches the part to 1.5x mode and
a subsequent dropout switches the part into 2x mode.
The part resets to 1x mode whenever a data byte is up-
dated via the I
2
C port.
Design files for this circuit board are available. Call
the LTC factory.
L
, LTC, LTM, LT are registered trademarks of Linear Technology Corporation. Other product
names may be trademarks of the companies that manufacture the products.
QUICK START PROCEDURE
Demonstration circuit 1039 is easy to set up to evaluate
the performance of the LTC3207/LTC3207-1. Refer to
Figure 1 for proper measurement equipment setup and
follow the procedure below:
NOTE.
When measuring the input or output voltage ripple, care
must be taken to avoid a long ground lead on the oscilloscope
probe. Measure the input or output voltage ripple by touching the
probe tip directly across the VBAT and GND terminals. See
Figure 2 for proper scope probe technique.
3.
Connect DC1039 to the DC590 USB Serial Controller
using the supplied 14-conductor ribbon cable as
shown in Figure 1.
4.
With power off, connect the input power supply to
VBAT and GND with a series ammeter and a voltmeter
as shown in Figure 1.
5.
Turn on and set the input power supply between 2.9 –
5.5V. The DC1039 has an extra 4.7uF de-coupling ca-
pacitor between VBAT and GND to help accommodate
long VBAT source lead lengths. The DC590 board gets
its power from the USB cable.
NOTE.
Make sure that the input voltage does not exceed 6V.
1.
Refer to the DC590 Quick Start Guide for QuikEval
TM
setup and software installation details.
2.
Make sure the USB cable is connected between the
computer and the DC590 controller board.
NOTE.
If using the DC590B board, a specific DVCC voltage level
may be selected. This is done by setting the VCCIO jumper on the
DC590 board to one of the following settings: 3.3V, 5V, removed
for 2.7V or set to external if use of an external supply is desired.
6.
Run the QuikEval program. The program detects the
DC1039 and displays the LTC3207 control window
(shown in Figure 3).
1

DC1039A-B Related Products

DC1039A-B DC1039A-A LTC3207EUF#TRPBF LTC3207EUF-1#TRPBF LTC3207EUF-1#PBF LTC3207EUF#PBF
Description board eval for ltc3207euf board eval for ltc3207euf IC LED DRVR RGLTR DIM 50MA 24QFN IC LED DRVR RGLTR DIM 50MA 24QFN IC LED DRVR RGLTR DIM 50MA 24QFN Supply voltage (maximum): 5.5V Frequency: 850kHz Type: DC DC regulator Internal switch: Yes Topology: Switched capacitor Supply voltage (minimum): 2.9V 17+
Brand Name - - Linear Technology Linear Technology Linear Technology Linear Technology
Is it Rohs certified? - - conform to conform to conform to conform to
Maker - - Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
Parts packaging code - - QFN QFN QFN QFN
package instruction - - HVQCCN, LCC24,.16SQ,20 HVQCCN, LCC24,.16SQ,20 HVQCCN, LCC24,.16SQ,20 HVQCCN, LCC24,.16SQ,20
Contacts - - 24 24 24 24
Manufacturer packaging code - - UF UF UF UF
Reach Compliance Code - - compliant compliant compliant compliant
ECCN code - - EAR99 EAR99 EAR99 EAR99
data entry mode - - SERIAL SERIAL SERIAL SERIAL
Interface integrated circuit type - - LED DISPLAY DRIVER LED DISPLAY DRIVER LED DISPLAY DRIVER LED DISPLAY DRIVER
JESD-30 code - - S-PQCC-N24 S-PQCC-N24 S-PQCC-N24 S-PQCC-N24
JESD-609 code - - e3 e3 e3 e3
length - - 4 mm 4 mm 4 mm 4 mm
Humidity sensitivity level - - 1 1 1 1
Multiplex display function - - NO NO NO NO
Number of functions - - 1 1 1 1
Number of segments - - 13 13 13 13
Number of terminals - - 24 24 24 24
Maximum operating temperature - - 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature - - -40 °C -40 °C -40 °C -40 °C
Package body material - - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - - HVQCCN HVQCCN HVQCCN HVQCCN
Encapsulate equivalent code - - LCC24,.16SQ,20 LCC24,.16SQ,20 LCC24,.16SQ,20 LCC24,.16SQ,20
Package shape - - SQUARE SQUARE SQUARE SQUARE
Package form - - CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) - - 260 260 260 260
power supply - - 3 V 3 V 3 V 3 V
Certification status - - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height - - 0.8 mm 0.8 mm 0.8 mm 0.8 mm
Maximum supply voltage - - 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage - - 2.9 V 2.9 V 2.9 V 2.9 V
Nominal supply voltage - - 3.6 V 3.6 V 3.6 V 3.6 V
surface mount - - YES YES YES YES
technology - - CMOS CMOS CMOS CMOS
Temperature level - - INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface - - Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form - - NO LEAD NO LEAD NO LEAD NO LEAD
Terminal pitch - - 0.5 mm 0.5 mm 0.5 mm 0.5 mm
Terminal location - - QUAD QUAD QUAD QUAD
Maximum time at peak reflow temperature - - 30 30 30 30
width - - 4 mm 4 mm 4 mm 4 mm
minfmax - - 1.05 MHz 1.05 MHz 1.05 MHz 1.05 MHz
Base Number Matches - - 1 1 1 1
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