LT3466EFE Linear Technology, LT3466EFE Datasheet - Page 3

• Manufacturer Part Number: LT3466EFE
• Description: IC,Laser Diode/LED Driver,TSSOP,16PIN,PLASTIC
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3466E is guaranteed to meet specified performance from
0°C to 70°C. Specifications over the –40°C to 85°C operating range are
assured by design, characterization and correlation with statistical process
controls.
PARAMETER
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 LED Current
CTRL1 or CTRL2 Voltage to Turn-On the IC
CTRL1 and CTRL2 Voltages to Shut Down the IC
CTRL1, CTRL2 Pin Bias Current
V
V
Schottky 1 Forward Drop
Schottky 2 Forward Drop
Schottky 1 Reverse Leakage
Schottky 2 Reverse Leakage
Soft-Start Time (Switcher 1)
Soft-Start Time (Switcher 2)
range, otherwise specifications are at T
TYPICAL PERFOR A CE CHARACTERISTICS
OUT1
OUT2
Overvoltage-Lockout Threshold
Overvoltage-Lockout Threshold
CESAT
CESAT
100mA/DIV
50mV/DIV
20V/DIV
V
V
OUT1
SW1
I
L1
Switching Waveforms
V
CIRCUIT OF FIGURE 1
IN
= 3.6V
W
U
0.5µs/DIV
A
= 25°C. V
CONDITIONS
(Note 5)
(Note 5)
I
I
V
V
V
V
V
I
I
V
V
SW1
SW2
SCHOTTKY1
SCHOTTKY2
SW1
SW2
CTRL1
OUT1
OUT2
OUT1
OUT2
IN
= 300mA
= 300mA
= 10V
= 10V
= 3V, V
Rising
Rising
= 20V
= 20V
= V
3466 G01
CTRL2
= 300mA
= 300mA
The
CTRL1
= 1V
●
denotes specifications that apply over the full operating temperature
= 3V, V
Note 3: Current flows out of the pin.
Note 4: Guaranteed by design and test correlation, not production tested.
Note 5: Current limit is guaranteed by design and/or correlation to static
test. Slope compensation reduces current limit at high duty cycle.
200mA/DIV
CTRL2
0.5V/DIV
2V/DIV
V
V
CTRL1
OUT1
I
= 3V, unless otherwise specified.
L1
Transient Response
V
I
CIRCUIT OF FIGURE 1
LED1
IN
= 3.6V
= 20mA TO 10mA
50µs/DIV
●
●
●
●
●
MIN
320
320
150
1.8
1.8
8
0.01
0.01
39.5
39.5
0.85
0.85
TYP
400
400
360
360
600
600
3466 G02
10
MAX
LT3466
50
12
5
5
5
5
UNITS
3466fa
3
mA
mA
mV
mV
mV
mV
µA
µA
µA
µA
µA
µs
µs
V
V
V
V
V
V