3

LT3466

3466fa

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Converter 1 Current Limit

(Note 5)

●

320

400

mA

Converter 2 Current Limit

(Note 5)

●

320

400

mA

360

mV

360

mV

Switch 1 Leakage Current

0.01

5

µA

Switch 2 Leakage Current

0.01

5

µA

CTRL1 Voltage for Full LED Current

●

1.8

V

CTRL2 Voltage for Full LED Current

●

1.8

V

CTRL1 or CTRL2 Voltage to Turn-On the IC

150

mV

CTRL1 and CTRL2 Voltages to Shut Down the IC

50

mV

CTRL1, CTRL2 Pin Bias Current

●

810

12

µA

39.5

V

39.5

V

Schottky 1 Forward Drop

0.85

V

Schottky 2 Forward Drop

0.85

V

Schottky 1 Reverse Leakage

5

µA

Schottky 2 Reverse Leakage

5

µA

Soft-Start Time (Switcher 1)

600

µs

Soft-Start Time (Switcher 2)

600

µs

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.

TYPICAL PERFOR A CE CHARACTERISTICS

Switching Waveforms

Transient Response

50mV/DIV

20V/DIV

100mA/DIV

0.5

µs/DIV

3466 G01

CIRCUIT OF FIGURE 1

0.5V/DIV

2V/DIV

200mA/DIV

50

µs/DIV

3466 G02

CIRCUIT OF FIGURE 1

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.