Datasheet

2
LTC1536
1536fa
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Terminal Voltage
V
CC3
, V
CC5
, V
CCA
.................................... – 0.3V to 7V
RST, SRST ............................................ – 0.3V to 7V
RST ......................................... –0.3V to V
CC3
+ 0.3V
PBR .......................................................... –7V to 7V
Operating Temperature Range
LTC1536C .............................................. 0°C to 70°C
LTC1536I............................................ –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
WU
U
PACKAGE
/
O
RDER I FOR ATIO
ORDER PART NUMBER
ORDER PART NUMBER
LTC1536CMS8
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
V
CC3
V
CC5
V
CCA
GND
PBR
SRST
RST
RST
T
JMAX
= 125°C, θ
JA
= 150°C/W
1
2
3
4
V
CC3
V
CC5
V
CCA
GND
8
7
6
5
PBR
SRST
RST
RST
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 160°C/W
MS8 PART MARKING
LTBV
S8 PART MARKING
1536
1536I
LTC1536CS8
LTC1536IS8
(Notes 1, 2)
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
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
RT3
Reset Threshold V
CC3
0°C ≤ T
A
≤ 70°C ● 2.962 2.985 3.000 V
–40°C ≤ T
A
≤ 85°C ● 2.925 2.985 3.008 V
V
RT5
Reset Threshold V
CC5
0°C ≤ T
A
≤ 70°C ● 4.687 4.725 4.750 V
–40°C ≤ T
A
≤ 85°C ● 4.625 4.725 4.762 V
V
RTA
Reset Threshold V
CCA
0°C ≤ T
A
≤ 70°C ● 0.992 1.000 1.007 V
–40°C ≤ T
A
≤ 85°C ● 0.980 1.000 1.007 V
V
CC
V
CC3
or V
CC5
Operating Voltage RST in Correct Logic State ● 17V
I
VCC3
V
CC3
Supply Current PBR = V
CC3
● 100 200 µA
I
VCC5
V
CC5
Input Current V
CC5
= 5V ● 10 20 µA
I
VCCA
V
CCA
Input Current V
CCA
= 1V ● –15 0 15 nA
t
RST
Reset Pulse Width RST Low with 10kΩ Pull-Up to V
CC3
0°C to 70°C ● 140 200 280 ms
– 40°C to 85°C
● 140 200 300 ms
t
SRST
Soft Reset Pulse Width SRST Low with 10kΩ Pull-Up to V
CC3
● 50 100 200 µs
t
UV
V
CC
Undervoltage Detect to RST V
CC5
, V
CC3
or V
CCA
Less Than Reset 13 µs
Threshold V
RT
by 1%
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC3
= 3.3V, V
CC5
= 5V, V
CCA
= V
CC3
unless otherwise noted.