Datasheet

LT3497
3
3497f
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CTRL1
Voltage for Full LED Current V
CAP1
= 16V
●
1.5 V
V
CTRL2
Voltage for Full LED Current V
CAP2
= 16V
●
1.5 V
V
CTRL1
or V
CTRL2
Voltage to Turn On the IC
●
100 mV
V
CTRL1
and V
CTRL2
Voltages to Shut Down the IC 50 mV
CTRL1, CTRL2 Pin Bias Current 100 nA
CAP1 Pin Overvoltage Protection
●
30 32 34 V
CAP2 Pin Overvoltage Protection
●
30 32 34 V
Schottky 1 Forward Drop I
SCHOTTKY1
= 100mA 0.8 V
Schottky 2 Forward Drop I
SCHOTTKY2
= 100mA 0.8 V
Schottky 1 Reverse Leakage Current V
R1
= 25V 4 µA
Schottky 2 Reverse Leakage Current V
R2
= 25V 4 µA
ELECTRICAL CHARACTERISTICS
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 3V, V
CTRL1
= V
CTRL2
= 3V.
Note 2: The LT3497E is guaranteed to meet performance specifi cations
from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.