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LTC3210EUD-2#PBF

Description
IC LED DRIVER RGLTR 25MA 16QFN
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size266KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
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LTC3210EUD-2#PBF Overview

IC LED DRIVER RGLTR 25MA 16QFN

LTC3210EUD-2#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeQFN
package instructionHVQCCN, LCC16,.12SQ,20
Contacts16
Manufacturer packaging codeUD
Reach Compliance Codecompliant
ECCN codeEAR99
data entry modeSERIAL
Interface integrated circuit typeLED DISPLAY DRIVER
JESD-30 codeS-PQCC-N16
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Multiplex display functionNO
Number of functions1
Number of segments5
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC16,.12SQ,20
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
power supply3.6 V
Certification statusNot Qualified
Maximum seat height0.8 mm
Maximum supply voltage4.5 V
Minimum supply voltage2.9 V
Nominal supply voltage3.6 V
surface mountYES
technologyCMOS
Temperature levelOTHER
Terminal surfaceMatte Tin (Sn)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature30
width3 mm
LTC3210-2/LTC3210-3
MAIN/CAM LED Controllers
with 32-Step Brightness Control
in 3mm
×
3mm QFN
DescripTion
The LTC
®
3210-2/LTC3210-3 are low noise charge pump
DC/DC converters designed to drive three or four MAIN
LEDs and one high current CAM LED for camera lighting.
The LTC3210-2/LTC3210-3 require only four small ceramic
capacitors and two current set resistors to form a complete
LED power supply and current controller.
Built-in soft-start circuitry prevents excessive inrush cur-
rent during start-up and mode changes. High switching
frequency enables the use of small external capacitors.
Independent MAIN and CAM full-scale current settings
are programmed by two external resistors.
Shutdown mode and current output levels are selected
via two logic inputs. ENM and ENC are toggled to adjust
the LED currents via internal counters and DACs. A 5-bit
linear DAC (32 steps) provides high resolution brightness
control for the MAIN display.
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
enter dropout. The LTC3210-2/LTC3210-3 are available
in a 3mm × 3mm 16-lead QFN package.
FeaTures
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Low Noise Charge Pump Provides High Efficiency
with Automatic Mode Switching
Multimode Operation: 1x, 1.5x, 2x
Individual Full-Scale Current Set Resistors
Up to 500mA Total Output Current
Single Wire EN/Brightness Control for MAIN and
CAM LEDs
32:1 Linear Brightness Control Range for
MAIN Display
Three or Four 25mA Low Dropout MAIN LED Outputs
One 400mA Low Dropout CAM LED Output
Low Noise Constant Frequency Operation*
Low Shutdown Current: 3µA
Internal Soft-Start Limits Inrush Current During
Startup and Mode Switching
Open/Short LED Protection
No Inductors
3mm × 3mm 16-Lead Plastic QFN Package
applicaTions
n
Multi-LED Light Supply for Cellphones/DSCs/PDAs
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6411531.
Typical applicaTion
C2
2.2µF
C3
2.2µF
100
C1P
V
BAT
C1
2.2µF
V
BAT
LTC3210-2
MLED1
MLED2
MLED3
ENM
ENC
ENM
ENC
RM
30.1k
1%
RC
24.3k
1%
MLED4
CLED
GND
321023 TA01
4-LED MAIN Display
Efficiency vs V
BAT
Voltage
MAIN
C4
2.2µF
CAM
EFFICIENCY (P
LED
/P
IN
) (%)
90
80
70
60
50
40
30
20 4 LEDs AT 9mA/LED
10 (TYP V
F
AT 9mA = 3V, NICHIA NSCW100)
T
A
= 25°C
0
3.0 3.2 3.4 3.6 3.8 4.0 4.2
V
BAT
(V)
C1M
C2P
C2M
CPO
4.4
321023 TA01b
321023fb


LTC3210EUD-2#PBF Related Products

LTC3210EUD-2#PBF LTC3210EUD-2#TRPBF LTC3210EUD-3#TRPBF LTC3210EUD-3#PBF
Description IC LED DRIVER RGLTR 25MA 16QFN IC LED DRIVER RGLTR 25MA 16QFN IC LED DRIVER RGLTR 25MA 16QFN IC LED DRIVER RGLTR 25MA 16QFN
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, LCC16,.12SQ,20 HVQCCN, LCC16,.12SQ,20 HVQCCN, LCC16,.12SQ,20 HVQCCN, LCC16,.12SQ,20
Contacts 16 16 16 16
Manufacturer packaging code UD UD UD UD
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-N16 S-PQCC-N16 S-PQCC-N16 S-PQCC-N16
JESD-609 code e3 e3 e3 e3
length 3 mm 3 mm 3 mm 3 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 5 5 4 4
Number of terminals 16 16 16 16
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HVQCCN HVQCCN HVQCCN HVQCCN
Encapsulate equivalent code LCC16,.12SQ,20 LCC16,.12SQ,20 LCC16,.12SQ,20 LCC16,.12SQ,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 3.6 V 3.6 V 3.6 V 3.6 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 4.5 V 4.5 V 4.5 V 4.5 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 OTHER OTHER OTHER OTHER
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 3 mm 3 mm 3 mm 3 mm
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