lt3466efe-trpbf Linear Technology Corporation, lt3466efe-trpbf Datasheet - Page 2

• Manufacturer Part Number: lt3466efe-trpbf
• Description: White Led Driver And Boost Converter In 3mm X 3mm Dfn Package
• Manufacturer: Linear Technology Corporation

ABSOLUTE AXI U RATI GS
ELECTRICAL CHARACTERISTICS
LT3466-1
(Note 1)
Input Voltage (V
SW1, SW2 Voltages ................................................ 44V
V
CTRL1, CTRL2 Voltages ........................................... 24V
FB1, FB2 Voltages ...................................................... 2V
Operating Temperature Range (Note 2) ... –40°C to 85°C
Storage Temperature Range .................. –65°C to 125°C
Junction Temperature .......................................... 125°C
PARAMETER
Minimum Operating Voltage
Maximum Operating Voltage
FB1 Voltage
FB2 Voltage
FB1 Pin Bias Current
FB2 Pin Bias Current
Quiescent Current
Switching Frequency
Oscillator Frequency Range
Nominal R
Maximum Duty Cycle
Converter 1 Current Limit
Converter 2 Current Limit
Converter 1 V
Converter 2 V
Switch 1 Leakage Current
Switch 2 Leakage Current
CTRL1 Voltage for Full LED Current
CTRL2 Voltage for Full Feedback Voltage
CTRL1 or CTRL2 Voltage to Turn On the IC
CTRL1 and CTRL2 Voltages to Shut Down Chip
CTRL1 Pin Bias Current
CTRL2 Pin Bias Current
range, otherwise specifications are at T
2
OUT1
, V
T
OUT2
Pin Voltage
CESAT
CESAT
Voltages ............................................. 44V
IN
) ................................................... 24V
W
W W
A
= 25°C. V
CONDITIONS
V
V
V
CTRL1 = CTRL2 = 0V
R
(Note 4)
R
R
R
R
I
I
V
V
V
V
SW1
SW2
FB1
FB2
FB1
T
T
T
T
T
SW1
SW2
CTRL1
CTRL2
U
= 48.7k
= 48.7k
= 48.7k
= 20.5k
= 267k
IN
= 0.2V (Note 3)
= 0.8V (Note 3)
= V
= 300mA
= 300mA
= 10V
= 10V
= 3V, V
= 1V
= 1V (Note 3)
FB2
= 1V
The
CTRL1
●
denotes specifications that apply over the full operating temperature
= 3V, V
Consult LTC Marketing for parts specified with wider operating temperature ranges.
PACKAGE/ORDER I FOR ATIO
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
CTRL2
V
V
T
OUT1
SW1
SW2
OUT2
10-LEAD (3mm × 3mm) PLASTIC DFN
JMAX
V
IN
EXPOSED PAD (PIN 11) IS GND
= 125°C, θ
MUST BE SOLDERED TO PCB
= 3V, unless otherwise specified.
1
2
3
4
5
DD PACKAGE
TOP VIEW
JA
= 43°C/W, θ
11
http://www.linear.com/leadfree/
10
JC
9
8
7
6
●
●
●
●
●
●
●
●
●
= 3°C/W
FB1
CTRL1
R
CTRL2
FB2
T
0.75
MIN
192
788
200
310
310
150
2.7
1.8
90
1
6
U
DD PART MARKING
0.54
0.01
0.01
TYP
200
800
400
400
320
320
92
99
10
10
16
96
10
5
1
9
LT3466EDD-1
ORDER PART
NUMBER
W
LBRX
MAX
2000
1.25
12.5
208
812
120
7.5
22
50
50
25
70
5
5
UNITS
U
34661f
MHz
kHz
mV
mV
mA
mA
mA
mV
mV
mV
mV
nA
nA
µA
µA
µA
µA
nA
%
%
%
V
V
V
V
V