LTC3206 Datasheet, PDF (2/16 Pages) Linear Technology – I2C Multidisplay LED Controller

LTC3206
ABSOLUTE AXI U RATI GS
(Note 1)
V_IN, DV_CC, CPO to GND............................... – 0.3V to 6V
SDA, SCL, ENRGB/S ................. – 0.3V to (DV_CC + 0.3V)
I_CPO (Continuous) (Note 4) ................................ 400mA
(Pulsed at 10% Duty Cycle) (Note 4) ..................... 1A
I_MAIN1-4, I_SUB1,2, I_{AUX 1, 2} (Note 4) ..................... 100mA
(Pulsed at 10% Duty Cycle) (Note 4) .............. 125mA
I_{RED,GREEN,BLUE} (Note 4) ..................................... 100mA
(Pulsed at 10% Duty Cycle) (Note 4) .............. 125mA
I_MS, I_RGB (Note 4) .................................................. 1mA
CPO Short-Circuit Duration ............................ Indefinite
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
24 23 22 21 20 19
SUB1 1
SUB2 2
C2^– 3
C1^– 4
C1⁺ 5
C2⁺ 6
18 BLUE
17 GREEN
16 RED
25
15 V_IN
14 CPO
13 SGND
7 8 9 10 11 12
ORDER PART
NUMBER
LTC3206EUF
UF PART
MARKING
UF PACKAGE
24-LEAD (4mm × 4mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 37°C/W, θ_JC = 2°C/W
EXPOSED PAD IS PGND (PIN 25)
MUST BE SOLDERED TO PCB
3206
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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
Input Power Supply
V_IN Operating Voltage
DV_CC Operating Voltage
V_IN Operating Current
I_CPO = I_MS = I_RGB = 0µA, Direct-Connect Mode
I_CPO = I_MS = I_RGB = 0µA, 1.5x Step-Up Mode
DV_CC Operating Current
Serial Port Idle
V_IN Shutdown Current
DV_CC Shutdown Current
White LED Current (MAIN1-MAIN4, SUB1, SUB2, AUX1, AUX2)
● 2.7
4.5
V
● 1.5
5.5
V
180
µA
3.9
mA
1
µA
7.3
10
µA
1
µA
I_MS Servo Voltage
25µA < I_MS < 75µA
0.585 0.6 0.615
V
● 0.582 0.6 0.618
V
Full-Scale LED Current Ratio (I_LED/I_MS) MAIN1-MAIN4, SUB1, SUB2, AUX1, AUX2, Voltage = 1V ● 368
400
432 mA/mA
LED Dropout Voltage
1.5x Mode Switch Threshold, I_LED = 20mA
80
mV
LED Brightness Range
0.78
100
%
LED Current Matching
MAIN-MAIN, MAIN-AUX, SUB-SUB, SUB-AUX
1
%
RGB LED Current (RED, GREEN, BLUE)
I_RGB Servo Voltage
25µA < I_RGB < 75µA
0.585 0.6 0.615
V
● 0.582 0.6 0.618
V
LED Current Ratio (I_LED/I_RGB)
RGB LED Dropout Voltage
RGB PWM (Duty Factor) Range
RED, GREEN, BLUE Voltage = 1V
1.5x Mode Switch Threshold, I_LED = 20mA
360
400
440 mA/mA
80
mV
0/15
15/15
%
Charge Pump (CPO)
1x Mode Output Impedance
0.68
Ω
1.5x Mode Output Impedance
V_IN = 3V, V_CPO = 4.2V (Note 3)
1.90
Ω
3206f
2