
LTC3219
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 4)
V BAT , DV CC , CPO ........................................... –0.3V to 6V
ULED1-ULED9 ............................................. –0.3V to 6V
PIN CONFIGURATION
TOP VIEW
SDA, SCL, ENU ...........................–0.3V to (DV CC + 0.3V)
I CPO (Note 2) .......................................................250mA
CPO Short-Circuit Duration .............................. Inde?nite
Operating Temperature Range (Note 3).... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
CPO 1
ULED1 2
ULED2 3
ULED3 4
ULED4 5
20 19 18 17 16
21
15 GND
14 ULED9
13 ULED8
12 ULED7
11 ULED6
6
7
8
9 10
UD PACKAGE
20-LEAD (3mm
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
LTC3219EUD#PBF
TAPE AND REEL
LTC3219EUD#TRPBF
PART MARKING
LCJV
PACKAGE DESCRIPTION
20-Lead (3mm × 3mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations 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
V BAT Operating Voltage
I VBAT Operating Current
CONDITIONS
I CPO = 0, 1x Mode
●
MIN
2.9
TYP
0.4
MAX
5.5
UNITS
V
mA
V BAT UVLO Threshold
I CPO = 0, 1.5x Mode
I CPO = 0, 2x Mode
1.7
2.1
1.5
mA
mA
V
DV CC Operating Voltage
DV CC UVLO Threshold
V BAT Shutdown Current
DV CC Shutdown Current
●
●
1.5
1
3.2
5.5
1
V
V
μA
μA
Universal LED Current, 6-Bit Linear DACs, ULED = 1V
Full-Scale LED Current
Minimum LED Current
LED Current Matching
Blink Rate Period
Data Code = 1
Any Two Outputs
REG 11, D3 and D4
●
25
28
0.51
2
1.25
31
mA
mA
%
s
2.5
s
ULED Up/Down Gradation Ramp Times
REG11, D1 and D2
0.24
0.48
0.96
s
s
s
3219fa
2