Datasheet
LTC3219
2
3219fa
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
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 .............................. Indefi nite
Operating Temperature Range (Note 3).... –40°C to 85°C
Storage Temperature Range ................... –65°C to 125°C
(Notes 1, 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
BAT
Operating Voltage
●
2.9 5.5 V
I
VBAT
Operating Current I
CPO
= 0, 1x Mode
I
CPO
= 0, 1.5x Mode
I
CPO
= 0, 2x Mode
0.4
1.7
2.1
mA
mA
mA
V
BAT
UVLO Threshold 1.5 V
DV
CC
Operating Voltage
●
1.5 5.5 V
DV
CC
UVLO Threshold 1V
V
BAT
Shutdown Current 3.2 μA
DV
CC
Shutdown Current
●
1μA
Universal LED Current, 6-Bit Linear DACs, ULED = 1V
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 REG 11, D3 and D4 1.25
2.5
s
s
ULED Up/Down Gradation Ramp Times REG11, D1 and D2 0.24
0.48
0.96
s
s
s
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi 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.
PIN CONFIGURATION
20 19 18 17 16
7 8
TOP VIEW
21
UD PACKAGE
20-LEAD (3mm s 3mm) PLASTIC QFN
9
10
CPO
ULED1
ULED2
ULED3
ULED4
GND
ULED
9
ULED
8
ULED
7
ULED
6
C1P
C2P
V
BAT
C1M
C2M
ULED5
DV
CC
SCL
SDA
ENU
12
11
13
14
15
4
5
3
2
1
6
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 TEMPERATURE RANGE
LTC3219EUD#PBF LTC3219EUD#TRPBF LCJV
20-Lead (3mm × 3mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/