LTC3206 Datasheet, PDF (3/16 Pages) Linear Technology – I2C Multidisplay LED Controller

LTC3206
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 3.6V, DV_CC = 3V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
CPO Regulation Voltage
CLK Frequency
I_CPO = 20mA, 1.5x Mode
4.75
V
0.68 0.96 1.36
MHz
SDA, SCL, ENRGB/S
V_IL
Low Level Input Voltage
V_IH
High Level Input Voltage
I_IH
Input Current
I_IL
Input Current
V_OL
Digital Output Low (SDA)
Timing Characteristics (Note 5)
SDA, SCL, ENRGB/S = DV_CC
SDA, SCL, ENRGB/S = 0V
I_PULLUP = 3mA
●
● 0.7 • DV_CC
–1
–1
●
0.3 • DV_CC
V
V
1
µA
1
µA
0.4
V
t_SCL
t_BUF
t_{HD, STA}
t_{SU, STA}
t_{SU, STD}
t_{HD, DAT(OUT)}
t_{HD, DAT(IN)}
t_{SU, DAT}
t_LOW
t_HIGH
t_f
t_r
t_SP
Clock Operating Frequency
Bus Free Time Between Stop and Start Condition
Hold Time After (Repeated) Start Condition
Repeated Start Condition Setup Time
Stop Condition Setup Time
Data Hold Time
Input Data Hold Time
Data Setup Time
Clock Low Period
Clock High Period
Clock Data Fall Time
Clock Data RiseTime
Spike Suppression Time
400
kHz
1.3
µs
0.6
µs
0.6
µs
0.6
µs
225
900
ns
0
900
ns
100
ns
1.3
µs
0.6
µs
20
300
ns
20
300
ns
50
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3206E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: 1.5x mode output impedance is defined as (1.5V_IN – V_CPO)/I_OUT.
Note 4: Based on long term current density limitations.
Note 5: All values are referenced to V_IH and V_IL levels.
TYPICAL PERFOR A CE CHARACTERISTICS
LED Pin Sink Current
vs LED Pin Voltage
100%
I_LED
50%
2.5mA/DIV
25%
Input and Output
Charge Pump Noise
CPO
AC COUPLED
(50mV/DIV)
V_IN
AC COUPLED
(50mV/DIV)
0mA
200mV/DIV
3206 G01
V_LED AT CURRENT SOURCE PIN
I_CPO = 200mA 500ns/DIV
V_IN = 3.6V
C_IN = C_CPO = 1.6µF
3206 G02
LED Pin Dropout Voltage
vs LED Pin Current
500 _{VIN = 3.6V}
T_A = 25°C
400
300
200
100
0
10 20 30 40 50 60 70 80 90 100
LED CURRENT (mA)
3206 GO3
3206f
3