LTC3219 Datasheet, PDF (2/20 Pages) Linear Technology – 250mA Universal Nine Channel LED Driver

LTC3219
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 4)
V_BAT, DV_CC, CPO........................................... –0.3V to 6V
ULED1-ULED9 ............................................. –0.3V to 6V
SDA, SCL, ENU ...........................–0.3V to (DV_CC + 0.3V)
I_CPO (Note 2) .......................................................250mA
CPO Short-Circuit Duration.............................. Indefinite
Operating Temperature Range (Note 3).... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
20 19 18 17 16
CPO 1
15 GND
ULED1 2
14 ULED9
ULED2 3
21
13 ULED8
ULED3 4
12 ULED7
ULED4 5
11 ULED6
6 7 8 9 10
UD PACKAGE
20-LEAD (3mm s 3mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 68°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3219EUD#PBF
LTC3219EUD#TRPBF
LCJV
20-Lead (3mm × 3mm) Plastic QFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
–40°C to 85°C
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, ENU = Hi, C1/C4 = 2.2μF, C2, C3 = 1μF, unless
otherwise noted.
PARAMETER
CONDITIONS
V_BAT Operating Voltage
I_VBAT Operating Current
V_BAT UVLO Threshold
I_CPO = 0, 1x Mode
I_CPO = 0, 1.5x Mode
I_CPO = 0, 2x Mode
DV_CC Operating Voltage
DV_CC UVLO Threshold
V_BAT Shutdown Current
DV_CC Shutdown Current
Universal LED Current, 6-Bit Linear DACs, ULED = 1V
MIN
TYP
MAX
UNITS
●
2.9
5.5
V
0.4
mA
1.7
mA
2.1
mA
1.5
V
●
1.5
5.5
V
1
V
3.2
μA
●
1
μA
Full-Scale LED Current
●
25
28
31
mA
Minimum LED Current
Data Code = 1
0.51
mA
LED Current Matching
Any Two Outputs
2
%
Blink Rate Period
ULED Up/Down Gradation Ramp Times
REG 11, D3 and D4
REG11, D1 and D2
1.25
s
2.5
s
0.24
s
0.48
s
0.96
s
3219fa
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