ltc3220-ltc3220-1 Linear Technology Corporation, ltc3220-ltc3220-1 Datasheet - Page 4

• Manufacturer Part Number: ltc3220-ltc3220-1
• Description: 360ma Universal 18-channel Led Driver
• Manufacturer: Linear Technology Corporation

LTC3220/LTC3220-1
ELECTRICAL CHARACTERISTICS
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.
Note 2: Based on long term current density limitations.
Note 3: The LTC3220/LTC3220-1 are 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.
TYPICAL PERFORMANCE CHARACTERISTICS
1V/DIV
4
V
CPO
0.65
0.60
0.50
0.45
0.40
0.30
0.70
0.55
0.35
Mode Switch Dropout Times
V
–40
IN
1x Mode Switch Resistance
vs Temperature
= 3.6V
1
V
–15
IN
= 3.6V
TEMPERATURE (°C)
250μs/DIV
10
V
IN
V
1.5
= 3.3V
IN
= 3.9V
35
2
60
3220 G01
3220 G04
85
AC COUPLED
20mV/DIV
V
3.7
3.5
3.3
3.1
2.9
2.7
2.5
CPO
–40
1.5x Mode CPO Ripple
1.5x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
V
I
C
CPO
IN
CPO
= 3.6V
= 200mA
= 4.7μF
–15
TEMPERATURE (°C)
10
500ns/DIV
Note 4: These devices include overtemperature protection that is intended
to protect the devices during momentary overload conditions. Junction
temperatures will exceed 125°C when overtemperature protection is
active. Continuous operation above the specifi ed maximum operating
junction temperature may result in device degradation or failure.
Note 5: 1.5x mode output impedance is defi ned as (1.5V
2x mode output impedance is defi ned as (2V
Note 6: All values are referenced to V
Note 7: Guaranteed by design.
35
60
T
2400 G31
3220 G02
A
= 25°C unless otherwise noted.
85
AC COUPLED
20mV/DIV
4.8
4.6
3.8
3.6
4.4
4.2
4.0
V
CPO
0
1.5x Mode CPO Voltage vs I
2x Mode CPO Ripple
V
I
C
CPO
IN
CPO
IH
= 3.6V
60
and V
= 200mA
= 4.7μF
3V
3.1V
IN
3.2V
120
IL
– V
levels.
3.3V
3.4V
I
CPO
CPO
500ns/DIV
180
(mA)
)/I
OUT
IN
240
– V
.
3.6V
CPO
300
CPO
)/I
3.5V
OUT
3220 G06
3220 G03
3220f
.
360