Datasheet
LTC1555L-1.8
2
V
IN
, DV
CC
to GND .....................................–0.3V to 6.5V
V
CC
to GND ...............................................–0.3V to 6.5V
Digital Inputs to GND................................–0.3V to 6.5V
CLK, RST, I/O to GND ..................... –0.3V to V
CC
+ 0.3V
V
CC
Short-Circuit Duration............................... Indefinite
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering,10 sec)................... 300°C
ORDER PART
NUMBER
T
JMAX
= 125°C, θ
JA
= 150°C/W
LTC1555LEGN-1.8
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (V
IN
= 2.6V to 6V, DV
CC
= 1.425V to 4.4V, controller digital pins tied to
DV
CC
, SIM digital pins floating, C1 = 0.1µF, C
OUT
= 2.2µF unless otherwise noted)
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Operating Voltage ● 2.6 6 V
DV
CC
Operating Voltage ● 1.425 4.4 V
DV
CC
Undervoltage Lockout 1.2 V
V
IN
Operating Current V
CC
= 3V, I
VCC
= 0V ● 27 65 µA
V
IN
Shutdown Current M0, M1 = 0V ● 1 µA
DV
CC
Operating Current M0, M1, DATA = DV
CC
, C
IN
= 1MHz ● 530 µA
DV
CC
Shutdown Current M0, M1 = 0V, DATA, C
IN
= DV
CC
● 1 µA
V
CC
Output Voltage 0 < I
VCC
< 10mA
M0, M1 = DV
CC
, 2.6V < V
IN
< 6V ● 4.55 5 5.25 V
M0, M1 = DV
CC
, 2.7V < V
IN
< 6V ● 4.75 5 5.25 V
M0 = DV
CC
, M1 = 0 ● 2.8 3 3.2 V
M0 = 0, M1 = DV
CC
● V
IN
– 0.2 V
IN
V
M0 = DV
CC
, M1 = 0, M2 = DV
CC
, 0 ≤ I
VCC
≤ 6mA ● 1.71 1.8 1.89 V
M0 = DV
CC
, M1 = 0, M2 = DV
CC
, V
IN
≥ 3V, I
VCC
≤ 10mA ● 1.71 1.8 1.89 V
V
CC
Short-Circuit Current V
CC
Shorted to GND ● 50 150 mA
Charge Pump f
OSC
1 MHz
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CIN
RIN
DATA
DDRV
DV
CC
M2
M1
M0
CLK
RST
I/0
V
CC
V
IN
C1
+
C1
–
GND
GN PART MARKING
555L18
Consult factory for parts specified with wider operating temperature ranges.