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LTC3214 Datasheet(PDF) 2 Page - Linear Technology

Part # LTC3214
Description  500mA Camera LED Charge Pump
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3214 Datasheet(HTML) 2 Page - Linear Technology

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LTC3214
2
3214fa
VIN to GND ............................................... –0.3V to 5.5V
CPO to GND ............................................. –0.3V to 5.5V
EN ................................................... –0.3V to VIN + 0.3V
ICPO, IILED (Note 2) ............................................. 600mA
CPO Short-Circuit Duration ............................ Indefinite
Storage Temperature Range ................. –65
°C to 125°C
Operating Temperature Range (Note 3) .. –40
°C to 85°C
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, CIN = C1 = C2 = 2.2µF, CCPO = 4.7µF.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Power Supply
VIN Operating Voltage
●
2.9
4.5
V
IVIN Operating Current
ICPO = 0mA, 1x Mode
980
µA
ICPO = 0mA, 1.5x
4.8
mA
ICPO = 0mA, 2x Mode
6.7
mA
IVIN Shutdown Current
EN = LOW
2.5
7.5
µA
LED Current
LED Current Ratio (ILED/ISET)ILED = 150mA to 500mA
2715
2950
3190
mA/mA
ILED Dropout Voltage (VILED)
Mode Switch Threshold, ILED = 200mA
40
mV
Mode Switching Delay (LED Warmup Time)
2.5
ms
LED Current On Time
EN to LED Current On
100
µs
Charge Pump (CPO)
Charge Pump Output Clamp Voltage
5V
1x Mode Output Impedance
0.70
Ω
1.5x Mode Output Impedance
3.2
Ω
2x Mode Output Impedance
3.5
Ω
CLK Frequency
VIN = 3V
●
0.6
0.9
1.2
MHz
EN
High Level Input Voltage (VIH)
●
1.4
V
Low Level Input Voltage (VIL)
●
0.4
V
Input Current (IIH)VEN = 3.6V
●
14.4
20
µA
Input Current (IIL)
●
–1
1
µA
TJMAX = 125°C, θJA = 43°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB GND
ORDER PART NUMBER
DD PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTC3214EDD
LBVQ
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF
Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
TOP VIEW
11
DD PACKAGE
10-LEAD (3mm
× 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
C1–
GND
C2–
VIN
EN
C2+
C1+
CPO
ILED
ISET



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