LTC3208 Datasheet, PDF (2/24 Pages) Linear Technology – High Current Software Confi gurable Multidisplay LED Controller

LTC3208
ABSOLUTE AXI U RATI GS
(Note 1)
V_BAT, DV_CC, CPO to GND ................................– 0.3 to 6V
SDA, SCL, ENRGBS, CAMHL .....– 0.3V to (DV_CC + 0.3V)
I_CPO (Note 2)............................................................1.3A
I_MAIN1-4, I_SUB1-2 (Note 3) .......................................33mA
I_RED, I_GRN, I_BLUE (Note 3).......................................33mA
I_CAM1-4, I_AUX1-4 (Note 3) ......................................120mA
CPO, R_REF Short-Circuit Duration .................... Indefinite
Operating Temperature Range (Note 4) .. – 40°C to 85°C
Storage Temperature Range.................. – 65°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
32 31 30 29 28 27 26 25
CAM1 1
CAM2 2
24 V_BAT2
23 RED
CAM3 3
22 GRN
CAM4 4
AUX1 5
21 BLUE
33
20 SUB1
AUX2 6
19 SUB2
AUX3 7
18 MAIN4
AUX4 8
17 MAIN3
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) QFN
EXPOSED PAD IS GND (PIN 33)
MUST BE SOLDERED TO PCB
T_JMAX = 125°C, θ_JA = 34°C/W
ORDER PART NUMBER UH PART MARKING
LTC3208EUH
3208
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
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_BAT = 3.6V, DV_CC = 3V, ENRGBS = Hi, R_REF = 24k, C2 = C3 = 2.2µF,
C1 = C4 = 4.7µF, unless otherwise noted.
PARAMETERS
V_BAT Operating Voltage
I_VBAT Operating Current
DV_CC Operating Voltage
DV_CC Operating Current
V_BAT UVLO Threshold
DV_CC UVLO Threshold
V_BAT Shutdown Current
R_REF
VR_REF
RR_REF
White LED Current (MAIN1-4, SUB1-2), 8-Bit Linear DACs
Full-Scale LED Current
Minimum (1LSB) LED Current
LED Current Matching
LED Dropout Voltage
CONDITIONS
I_CPO = 0, 1x Mode, LEDs Disabled
I_CPO = 0, 1.5x Mode
I_CPO = 0, 2x Mode
DV_CC = 1.8V, Serial Port Idle
DV_CC = 1.8V
Reference Resistor Range
MAIN, SUB = 1V
MAIN, SUB = 1V
Any Two MAIN or SUB Outputs, 50% FS
I_LED = FS
MIN TYP MAX UNITS
● 2.9
4.5
V
280
µA
4.7
mA
7
mA
● 1.5
5.5
V
●
1
µA
1.5
V
1
V
3.2
µA
● 1.195 1.215 1.235
V
● 22
30
k
● 25.3 27.5 29.7
mA
108
µA
1
%
180
mV
3208fa
2