lt3595a Linear Technology Corporation, lt3595a Datasheet - Page 3

• Manufacturer Part Number: lt3595a
• Description: 16 Channel Buck Mode Led Driver
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
GND = 0V, unless otherwise noted.
PARAMETER
V
V
V
I
I
I
I
I
I
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch V
Switch Leakage Current
Schottky Forward Drop
Schottky Leakage Current
SHDN, PWM1-16 Input Low Voltage
SHDN, PWM1-16 Input High Voltage
SHDN Pin Bias Current
PWM1-16 Pin Bias Current
OPENLED Pin Voltage
OPENLED Pin Input Leakage Current
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.
VIN
VIN
VCC
VCC
L1-16
L1-16
IN
CC
CC
Operating Voltage
Operating Voltage
Input Under Voltage Lockout
Quiescent Current ON, No Switching
Quiescent Current in Shutdown
Quiescent Current ON, No Switching
Quiescent Current in Shutdown
Output Current Accuracy
Channel-to-Channel Matching
CESAT
CONDITIONS
SHDN = 0V
V
V
R
R
I
V
I
V
SHDN = 3.3V
PWM1-16 = 3.3V
V
OPENLED = 3.3V
SW1-16
SCHOTTKY
CC
SW1-16
CC
SET
SET
SW1-16
CC
A
= 3.3V
= 3.3V, SHDN = 0V
= 3.3V, I
= 75kΩ
= 75kΩ
= 25°C, V
= 50mA
= 45V
= 0.7V, SHDN = 0V
The
= 50mA
OPENLED
l
IN
denotes the specifi cations which apply over the full operating
= 45V, V
= 200μA
Note 2: The LT3595A is guaranteed to meet performance specifi cations
from 0°C to 125°C junction temperature. Specifi cations over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls.
CC
= 3.3V, PWM = SHDN = OPENLED = 3.3V, R
l
l
l
18.6
MIN
4.5
1.6
1.6
80
90
3
0.25
0.12
TYP
120
450
2.6
0.1
0.8
0.1
0.1
0.1
±1
15
17
20
85
35
3
2
LT3595A
MAX
21.4
150
5.5
2.9
2.4
0.4
40
10
±4
6
4
1
1
SET
= 75k
UNITS
3595af
3
MHz
Ω
mA
mA
mA
mA
mV
μA
μA
μA
μA
μA
μA
μA
%
%
V
V
V
V
V
V
V
,