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LTC3490EDD Datasheet(PDF) 2 Page - Linear Technology

Part # LTC3490EDD
Description  Single Cell 350mA LED Driver
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3490EDD Datasheet(HTML) 2 Page - Linear Technology

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LTC3490
3490fa
Supply Voltage (VIN) ................................... – 0.3V to 6V
Input Voltages (CTRL/SHDN, CELLS) ......... – 0.3V to 6V
Output Voltages (CAP, LED, SW) ................ – 0.3V to 6V
ABSOLUTE
AXI U
RATI GS (Note 1)
Operating Temperature Range (Note 2) .. – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 125°C
Lead Temperature (Soldering, 10 sec, S8) .......... 300
°C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Supply Range
1
3.2
V
VIN(START)
Minimum Start-Up Voltage
(Note 3)
0.9
1
V
ILED(MAX)
LED Drive Current
VCTRL/SHDN = VIN, DD Package
25
°C to 85°C
330
350
370
mA
–40
°C to <25°C
310
350
385
mA
VCTRL/SHDN = VIN, S8 Package
25
°C to 85°C
337
350
363
mA
–40
°C to <25°C
325
345
365
mA
ILED(SHDN)
LED Drive Current in Shutdown
VCTRL/SHDN = 0V
0.1
1
µA
VLED
Output Compliance Voltage
●
2.8
4
V
VLED(OVL)
Output Voltage Overvoltage Limit
Open LED
●
4.2
4.7
V
IIN(SHDN)
Input Current, Shutdown
VCTRL/SHDN = 0V, Excluding Switch Leakage
20
50
µA
IIN(ACTIVE)
Input Current, Active
Excluding Load Power
20
30
mA
fSW
Switching Frequency
●
1.0
1.3
1.6
MHz
IL(NMOS)
Leakage Current, NMOS Switch
0.1
µA
RON(NMOS)
On-Resistance, NMOS Switch
0.1
Ω
The
● denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25°C. VIN = 2.5V unless otherwise specified.
ELECTRICAL CHARACTERISTICS
LTC3490EDD
LBRQ
TJMAX = 125°C, θJA = 43°C/ W (NOTE 4)
EXPOSED PAD (PIN 9) IS GND
MUST BE SOLDERED TO PCB (NOTE 5)
LTC3490ES8
3490
TJMAX = 125°C, θJA = 150°C/ W (NOTE 4)
TOP VIEW
9
DD PACKAGE
8-LEAD (3mm
× 3mm) PLASTIC DFN
5
6
7
8
4
3
2
1
CELLS
VIN
SW
GND
CTRL/SHDN
LOBAT
CAP
LED
1
2
3
4
8
7
6
5
TOP VIEW
CTRL/SHDN
LOBAT
CAP
LED
CELLS
VIN
SW
GND
S8 PACKAGE
8-LEAD PLASTIC SO
PACKAGE/ORDER I FOR ATIO
ORDER PART NUMBER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DD PART MARKING
ORDER PART NUMBER
S8 PART MARKING
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/



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