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LTC3214
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V IN to GND ............................................... –0.3V to 5.5V
PIN CONFIGURATION
TOP VIEW
CPO to GND ............................................. –0.3V to 5.5V
EN ................................................... –0.3V to V IN + 0.3V
I CPO , I ILED (Note 2) ...............................................600mA
CPO Short-Circuit Duration ............................. Inde?nite
Storage Temperature Range.................. –65°C to 125°C
C2 +
C1 +
CPO
I LED
I SET
1
2
3
4
5
11
10 C1 –
9 GND
8 C2 –
7 V IN
6 EN
Operating Temperature Range (Note 3)... –40°C to 85°C
DD PACKAGE
10-LEAD (3mm
3mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 43°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC3214EDD#PBF
TAPE AND REEL
LTC3214EDD#TRPBF
PART MARKING
LBVQ
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 3.6V, C IN = C1 = C2 = 2.2μF, C CPO = 4.7μF.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Power Supply
V IN Operating Voltage
I VIN Operating Current
I CPO = 0mA, 1x Mode
I CPO = 0mA, 1.5x
I CPO = 0mA, 2x Mode
l
2.9
980
4.8
6.7
4.5
V
μA
mA
mA
I VIN Shutdown Current
EN = LOW
2.5
7.5
μA
LED Current
LED Current Ratio (I LED /I SET )
I LED Dropout Voltage (V ILED )
I LED = 150mA to 500mA
Mode Switch Threshold, ILED = 200mA
2715
2950
40
3190
mA/mA
mV
Mode Switching Delay (LED Warm-Up Time)
2.5
ms
LED Current On Time
EN to LED Current On
100
μs
Charge Pump (CPO)
Charge Pump Output Clamp Voltage
1x Mode Output Impedance
1.5x Mode Output Impedance
2x Mode Output Impedance
5
0.70
3.2
3.5
V
Ω
Ω
Ω
CLK Frequency
V IN = 3V
l
0.6
0.9
1.2
MHz
CPO Short-Circuit Detection
Threshold Voltage
Test Current
EN = High
EN = Low, V CPO = 0V
l
l
0.5
12
1.5
66
V
mA
3214fb
2
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