LTC3209-1 Datasheet, PDF (3/20 Pages) Linear Technology – 600mA Main/Camera LED Controller

LTC3209-1/LTC3209-2
ELECTRICAL CHARACTERISTICS _{The ● denotes the specifications which apply over the full operating}
temperature range, otherwise specifications are at T_A = 25°C. V_BAT1,2 = 3.6V, DV_CC = 3V, R_REF = 24.3k, C1 = C2 = C3 = C4 = 2.2µF,
unless otherwise noted.
PARAMETER
White LED Current (MAIN1-6), 8-Bit Linear DAC
CONDITIONS
MIN TYP MAX UNITS
Full-Scale LED Current
MAIN = 1V
Minimum (1LSB) LED Current
MAIN = 1V
LED Current Matching
Any Two MAIN Outputs at 50% FS
LED Dropout Voltage
Mode Switch Threshold, I_MAINx = FS
White LED Current (CAM), LTC3209-1, 4-Bit Linear DAC
● 25
28
31
mA
110
µA
1
%
180
mV
Full-Scale LED Current
Minimum (1LSB) LED Current
CAM = 1V
CAM = 1V
● 360 400 440
mA
26.8
mA
LED Dropout Voltage
Mode Switch Threshold, I_CAM = FS
White LED Current (CAM1-2), LTC3209-2, 4-Bit Linear DAC
400
mV
Full-Scale LED Current
Minimum (1LSB) LED Current
CAM = 1V
CAM = 1V
● 180 200 220
mA
13.3
mA
LED Current Matching
CAM1-2 at 50% FS
1
%
LED Dropout Voltage
AUX LED Current, 2-Bit Linear DAC
Mode Switch Threshold, I_CAM = FS
400
mV
Full-Scale LED Current
Minimum (1LSB) LED Current
AUX = 1V
AUX = 1V
● 12.5 13.75 15
mA
4.4
mA
V_OL
Charge Pump (CPO)
I_AUX = 1mA; C0, C1 = High
18
mV
1x Mode Output Impedance
1.5x Mode Output Impedance
2x Mode Output Impedance
CPO Voltage Regulation
CLOCK Frequency
V_BAT = 3V, V_CPO = 4.2V (Note 3)
V_BAT = 3V, V_CPO = 4.8V (Note 3)
1.5x Mode, I_CPO = 2mA
2x Mode, I_CPO = 2mA
0.5
Ω
2.7
Ω
3.2
Ω
4.6
V
5.1
V
0.85
MHz
SDA, SCL, CAMHL
V_IL (Low Level Input Voltage)
V_IH (High Level Input Voltage)
V_OL, Digital Output Low (SDA)
I_IH
I_IL
Serial Port Timing (Notes 6, 7)
I_PULLUP = 3mA
SDA, SCL, CAMHL = DV_CC
SDA, SCL, CAMHL = 0V
●
● 0.7 • DV_CC
0.3 • DV_CC
V
V
●
0.16 0.4
V
● –1
1
µA
● –1
1
µA
t_SCL
t_BUF
t_HD,STA
t_SU,STA
t_SU,STO
t_HD,DAT(OUT)
t_HD,DAT(IN)
t_SU,DAT
t_LOW
t_HIGH
t_f
t_r
Clock Operating Frequency
Bus Free Time Between Stop and Start Condition
1.3
Hold Time After (Repeated) Start Condition
0.6
Repeated Start Condition Setup Time
0.6
Stop Condition Setup Time
0.6
Data Hold Time
0
Input Data Hold Time
0
Data Setup Time
100
Clock Low Period
1.3
Clock High Period
0.6
Clock Data Fall Time
20
Clock Data Rise Time
20
400
kHz
µs
µs
µs
µs
900
ns
ns
ns
µs
µs
300
ns
300
ns
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