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LTC3202EMS#TRPBF

Description
LED Driver 5000uA Supply Current 10-Pin MSOP T/R
File Size241KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC3202EMS#TRPBF Overview

LED Driver 5000uA Supply Current 10-Pin MSOP T/R

LTC3202EMS#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Number of Segments6
Minimum Operating Supply Voltage (V)2.7
Maximum Operating Supply Voltage (V)4.5
Typical Operating Supply Voltage (V)3.3
Maximum Supply Current (uA)5000
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Standard Package NameMSOP
Pin Count10
Supplier PackageMSOP
MountingSurface Mount
Package Height0.86
Package Length3
Package Width3
PCB changed10
Lead ShapeGull-wing
LTC3202
Low Noise, High Efficiency
Charge Pump for White LEDs
FEATURES
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Low Noise Constant Frequency Operation
25% Less Input Current Than Doubler Charge Pump
High Output Current: Up To 125mA
Small Application Circuit
Regulated Output Voltage or Current
Automatic Soft-Start
V
IN
Range: 2.7V to 4.5V
No Inductors
1.5MHz Switching Frequency
I
CC
< 1µA in Shutdown
Available in 10-Pin MSOP and 3mm
×
3mm
DFN Packages
The LTC
®
3202 is a low noise, constant frequency charge
pump DC/DC converter that uses fractional conversion to
increase efficiency in white LED applications. The part can
be used to produce a regulated voltage or current of up to
125mA from a 2.7V to 4.5V input. Low external parts count
(two flying capacitors and two small bypass capacitors at
V
IN
and V
OUT
) make the LTC3202 ideally suited for small,
battery-powered applications.
An internal 2-bit DAC allows LED current to be adjusted for
LED brightness control. The LTC3202 also has thermal
shutdown protection and can survive a continuous short-
circuit from V
OUT
to GND. Built-in soft-start circuitry
prevents excessive inrush current during start-up. High
switching frequency enables the use of small external
capacitors. A low current shutdown feature disconnects
the load from V
IN
and reduces quiescent current to less
than1µA.
The LTC3202 is available in the 10-pin MSOP and 3mm
×
3mm DFN packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
White LED Backlighting
Programmable Boost Current Source
TYPICAL APPLICATIO
C2
1µF
C3
1µF
Programmable White LED Power Supply
Input and Output Ripple
V
IN
(AC COUPLED)
20mV/DIV
8
C1
+
10
CURRENT
PROGRAMMING
V
IN
3V TO 4.5V
C1
1µF
1
4
D0
D1
V
IN
7
C1
9
C2
+
6
C2
V
OUT
0mA TO 125mA
TOTAL CURRENT
3
LTC3202
FB
GND
5, 11
2
C4
1µF
36Ω
36Ω
36Ω
36Ω
36Ω
36Ω
V
OUT
(AC COUPLED)
20mV/DIV
500ns/DIV
V
IN
= 3.6V
C
IN
= C
OUT
= 1µF
I
OUT
= 60mA
3202 G09
C1, C2, C3, C4 = MURATA GRM 39X5R105K6.3 OR TAIYO YUDEN JMK107BJ105MA
3202 TA01
U
3202fa
U
U
1

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Description LED Driver 5000uA Supply Current 10-Pin MSOP T/R LED Driver 6 Segment 5000uA Supply Current 10-Pin DFN EP Tube LED Driver 6 Segment 5000uA Supply Current 10-Pin DFN EP T/R LED Driver 6 Segment 5000uA Supply Current 10-Pin DFN EP LED Driver 5000uA Supply Current 10-Pin MSOP Tube
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Not Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Unconfirmed Active
Number of Segments 6 6 6 6 6
Minimum Operating Supply Voltage (V) 2.7 2.7 2.7 2.7 2.7
Maximum Operating Supply Voltage (V) 4.5 4.5 4.5 4.5 4.5
Typical Operating Supply Voltage (V) 3.3 3.3 3.3 3.3 3.3
Maximum Supply Current (uA) 5000 5000 5000 5000 5000
Minimum Operating Temperature (°C) -40 -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85 85
Supplier Temperature Grade Extended Extended Extended Extended Extended
Standard Package Name MSOP DFN DFN DFN MSOP
Pin Count 10 10 10 10 10
Supplier Package MSOP DFN EP DFN EP DFN EP MSOP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.86 0.75(Max) 0.75(Max) 0.75(Max) 0.86
Package Length 3 3 3 3 3
Package Width 3 3 3 3 3
PCB changed 10 10 10 10 10
Lead Shape Gull-wing No Lead No Lead No Lead Gull-wing
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 - 8542.39.00.01
Packaging Tape and Reel Tube Tape and Reel - Tube
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