LTC3206
W W
U W
U
W
U
ABSOLUTE AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
TOP VIEW
ORDER PART
NUMBER
VIN, DVCC, CPO to GND............................... –0.3V to 6V
SDA, SCL, ENRGB/S ................. –0.3V to (DVCC + 0.3V)
24 23 22 21 20 19
I
CPO (Continuous) (Note 4) ................................ 400mA
SUB1
SUB2
1
2
3
4
5
6
18 BLUE
LTC3206EUF
17 GREEN
(Pulsed at 10% Duty Cycle) (Note 4)..................... 1A
–
C2
RED
16
15
25
–
IMAIN1-4, SUB1,2, IAUX 1, 2 (Note 4) ..................... 100mA
I
C1
V
IN
+
C1
14 CPO
(Pulsed at 10% Duty Cycle) (Note 4).............. 125mA
IRED,GREEN,BLUE (Note 4) ..................................... 100mA
(Pulsed at 10% Duty Cycle) (Note 4).............. 125mA
+
C2
13 SGND
UF PART
MARKING
7
8
9 10 11 12
IMS, IRGB (Note 4) .................................................. 1mA
3206
UF PACKAGE
24-LEAD (4mm × 4mm) PLASTIC QFN
CPO Short-Circuit Duration ............................ Indefinite
Operating Temperature Range (Note 2) .. –40°C to 85°C
Storage Temperature Range ................. –65°C to 125°C
TJMAX = 125°C, θJA = 37°C/W, θJC = 2°C/W
EXPOSED PAD IS PGND (PIN 25)
MUST BE SOLDERED TO PCB
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 TA = 25°C. VIN = 3.6V, DVCC = 3V unless otherwise noted.
SYMBOL PARAMETER
Input Power Supply
CONDITIONS
MIN
TYP
MAX
UNITS
V
Operating Voltage
●
●
2.7
1.5
4.5
5.5
V
V
IN
DV Operating Voltage
CC
V
IN
Operating Current
I
I
= I = I
MS
= 0µA, Direct-Connect Mode
= 0µA, 1.5x Step-Up Mode
180
3.9
µA
mA
CPO
CPO
MS
= I = I
RGB
RGB
DV Operating Current
Serial Port Idle
1
10
1
µA
µA
µA
CC
V
IN
Shutdown Current
7.3
DV Shutdown Current
CC
White LED Current (MAIN1-MAIN4, SUB1, SUB2, AUX1, AUX2)
I
Servo Voltage
25µA < I < 75µA
0.585
0.582
0.6
0.6
0.615
0.618
V
V
MS
MS
●
●
Full-Scale LED Current Ratio (I /I
)
MAIN1-MAIN4, SUB1, SUB2, AUX1, AUX2, Voltage = 1V
368
400
80
432
mA/mA
mV
LED MS
LED Dropout Voltage
LED Brightness Range
1.5x Mode Switch Threshold, I
= 20mA
LED
0.78
100
%
LED Current Matching
MAIN-MAIN, MAIN-AUX, SUB-SUB, SUB-AUX
25µA < I < 75µA
1
%
RGB LED Current (RED, GREEN, BLUE)
I
Servo Voltage
0.585
0.582
0.6
0.6
0.615
0.618
V
V
RGB
RGB
●
LED Current Ratio (I /I
)
RED, GREEN, BLUE Voltage = 1V
1.5x Mode Switch Threshold, I
360
400
80
440
mA/mA
mV
LED RGB
RGB LED Dropout Voltage
RGB PWM (Duty Factor) Range
Charge Pump (CPO)
= 20mA
LED
0/15
15/15
%
1x Mode Output Impedance
1.5x Mode Output Impedance
0.68
1.90
Ω
Ω
V
= 3V, V
= 4.2V (Note 3)
IN
CPO
3206f
2
Linear [ Linear ]
