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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
I CPO = 20mA, 1.5x Mode
4.75
V
CLK Frequency
0.68
0.96
1.36
MHz
SDA, SCL, ENRGB/S
V IL
V IH
Low Level Input Voltage
High Level Input Voltage
●
●
0.7 ? DV CC
0.3 ? DV CC
V
V
I IH
I IL
V OL
Input Current
Input Current
Digital Output Low (SDA)
SDA, SCL, ENRGB/S = DV CC
SDA, SCL, ENRGB/S = 0V
I PULLUP = 3mA
●
–1
–1
1
1
0.4
μ A
μ A
V
Timing Characteristics (Note 5)
t SCL
t BUF
t HD, STA
t SU, STA
t SU, STD
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
1.3
0.6
0.6
0.6
400
kHz
μ s
μ s
μ s
μ s
t HD, DAT(OUT)
t HD, DAT(IN)
t SU, DAT
t LOW
t HIGH
t f
t r
t SP
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
225
0
100
1.3
0.6
20
20
50
900
900
300
300
ns
ns
ns
μ s
μ s
ns
ns
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%
Input and Output
Charge Pump Noise
500
LED Pin Dropout Voltage
vs LED Pin Current
V IN = 3.6V
CPO
AC COUPLED
(50mV/DIV)
400
T A = 25 ° C
I LED
2.5mA/DIV
50%
V IN
300
AC COUPLED
25%
(50mV/DIV)
200
0mA
200mV/DIV
3206 G01
I CPO = 200mA 500ns/DIV
3206 G02
100
V IN = 3.6V
V LED AT CURRENT SOURCE PIN
C IN = C CPO = 1.6 μ F
0
10
20
30
40
50
60
70
80
90 100
LED CURRENT (mA)
3206 GO3
3206f
3
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