LTC3212 Linear Technology, LTC3212 Datasheet - Page 3

• Manufacturer Part Number: LTC3212
• Description: RGB LED Driver and Charge Pump
• Manufacturer: Linear Technology

elecTrical characTerisTics
temperature range, otherwise specifications are at T
PARAMETER
2x Mode Output Impedance
CLK Frequency
LEDEN
High Level Input Voltage (V
Low Level Input Voltage (V
Input Current (I
Input Current (I
t
t
t
I
V
I
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 LTC3212E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C ambient
operating temperature range are assured by design, characterization and
correlation with statistical process controls
Typical perForMance characTerisTics
500mV/DIV
PWH
PWL
SD
SET(R,G,B)
ISET
ISET
1V/DIV
CPO
LED
Dropout Time
1V
3.6V
IH
IL
)
)
DROPOUT
1x MODE
DELAY
DROPOUT
50µs/DIV
IL
IH
)
)
2x MODE
5.1V
3212 G01
0V
CONDITIONS
(Notes 6, 7)
LEDEN = 3.6V
High Pulse Width
Low Pulse Width
Low Time to Shutdown (LEDEN = Low)
AC COUPLED
20mV/DIV
V
A
CPO
= 25°C. V
2x Mode CPO Ripple
V
I
C
CPO
IN
CPO
The
= 3.6V
= 75mA
= 1µF
●
IN
denotes the specifications which apply over the full operating
= 3.6V.
500ns/DIV
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 5: If the LTC3212 has been shut down, then the initial enable time
is longer due to the bandgap settling time and the CPO output capacitor
soft-start time.
Note 6: 1x mode output impedance is defined as (V
2x mode output impedance is defined as (2V
Note 7: Guaranteed by design.
3212 G02
●
●
●
●
●
250
200
150
100
50
0
0
LED Pin Dropout Voltage
vs LED Pin Current
0.08
0.08
MIN
650
350
864
1.4
–1
5
IN
LED CURRENT (mA)
www.DataSheet4U.com
– V
TYP
900
925
25
3
CPO
IN
LTC3212
10
– V
)/I
OUT
CPO
1275
MAX
985
140
0.4
10
20
1
.
)/I
OUT
15
.
UNITS
3212 G03
3212fb

kHz
mV
µA
µA
µA
µs
µs
µs
20
Ω
V
V