ltc1727es8-5-trpbf Linear Technology Corporation, ltc1727es8-5-trpbf Datasheet - Page 4

• Manufacturer Part Number: ltc1727es8-5-trpbf
• Description: Micropower Precision Triple Supply Monitors In 8-lead Msop And 5-lead Sot-23 Packages
• Manufacturer: Linear Technology Corporation

LTC1727/LTC1728
4
ELECTRICAL CHARACTERISTICS
LTC1728-3.3 The
T
SYMBOL
V
V
V
V
I
I
I
t
t
V
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All voltage values are with respect to GND.
Note 3: The LTC1727E/LTC1728E are guaranteed to meet specified
performance from 0°C to 70°C and are designed, characterized and
assured to meet the extended temperature limits of – 40°C to 85°C
but are not tested at these temperatures.
VCC3
VCC18
VCCA
RST
UV
A
RT3
RT18
RTA
CCOP
OL
OH
= 25°C. V
PARAMETER
Reset Threshold V
Reset Threshold V
Reset Threshold V
V
V
V
V
Reset Pulse Width
V
Output Voltage Low, RST
Output Voltage High, RST
CC3
CC3
CC18
CCA
CC
CC3
Undervoltage Detect to RST
, V
Supply Current
Input Current
= 3.3V, V
Supply Current
CC18
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at
Operating Voltage
CC18
CC3
CC18
CCA
= 1.8V, V
CCA
= V
CC3
CONDITIONS
V
V
V
RST in Correct Logic State
V
V
V
V
RST Low (Note 5)
V
Threshold V
I
I
I
I
I
SINK
SINK
SINK
SINK
SOURCE
CC3
CC18
CCA
CC18
CC18
CC18
CCA
CC18
unless otherwise noted.
Input Threshold
= 2.5mA, V
= 100µA, V
= 100µA, V
= 100µA, V
Input Threshold
= 1V
, V
Input Threshold
> V
< V
< V
= 1µA (Note 6)
CC3
CC3
CC3
CC3
RT
or V
, V
, V
by More Than 1%
CC3
CC18
CCA
CC3
CC3
CC3
CC3
= 3.3V (Note 4)
Less Than Reset (Note 5)
= 3.3V, V
= 1V, V
= 0V, V
= 1V, V
= 1.8V (Note 4)
Note 4: Both V
on which pin has the greatest potential.
Note 5: Measured from when input passes through the input threshold
(V
Note 6: The output pins RST and COMPX have internal pull-ups to V
typically 6µA. However, external pull-up resistors may be used when faster
rise times are required or for V
Note 7: The V
than approximately 4.15V. Above this point the override is turned off and
the V
CC18
CC18
CC18
RTX
CC18
CC5
) until RST or COMPX passes through 1.5V.
= 0V
= 1V
= 1V
= 0V
pin functions normally.
CC5
CC3
reset override voltage is valid for an operating range less
and V
CC5
/V
CC25
OH
●
●
●
●
●
●
●
●
●
●
●
●
●
●
voltages greater than V
/V
V
CC18
3.036
1.656
0.985
CC3
MIN
– 15
140
1
– 1
can act as the supply depending
3.086
1.683
1.000
0.15
0.05
0.05
0.05
TYP
200
110
10
1
1
0
CC3
3.135
1.710
1.015
MAX
280
0.4
0.3
0.3
0.3
20
15
7
2
2
.
CC3
17278fb
UNITS
ms
µA
µA
µA
nA
of
µs
V
V
V
V
V
V
V
V
V