DS1815R-5-U+ Maxim Integrated, DS1815R-5-U+ Datasheet - Page 2

• Manufacturer Part Number: DS1815R-5-U+
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: DS1815r

Specifications of DS1815R-5-U+

• Number Of Voltages Monitored: 1
• Monitored Voltage: 0 V to 5.5 V
• Undervoltage Threshold: 2.98 V
• Overvoltage Threshold: 3.15 V
• Output Type: Active Low, Push-Pull
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 250 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23
• Chip Enable Signals: No
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Supply Current (typ): 35 uA
• Supply Voltage - Min: 0 V
• Part # Aliases: 90-1815R+U05

ABSOLUTE MAXIMUM RATINGS
V
SRT, SWT, SET0, SET1, RESET IN, WDS, MR,
RESET (Push-Pull) to GND......................…-0.3V to (V
RESET (Open Drain) to GND .............................…-0.3V to +6.0V
Input Current (All Pins) .....................................................±20mA
Output Current (RESET) ...................................................±20mA
µP Reset Circuits with Capacitor-Adjustable
Reset/Watchdog Timeout Delay
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
2
Supply Voltage
Supply Current
V
Hysteresis
V
Reset Timeout Period
SRT Ramp Current
SRT Ramp Threshold
Normal Watchdog Timeout Period
(MAX6746–MAX6751)
Extended Watchdog Timeout
(MAX6746–MAX6751)
Slow Watchdog Period
(MAX6752/MAX6753)
Fast Watchdog Timeout Period,
SET Ratio = 8,
(MAX6752/MAX6753)
Fast Watchdog Timeout Period,
SET Ratio = 16,
(MAX6752/MAX6753)
CC
CC
WDI, to GND .......................................…-0.3V to (V
CC
CC
_______________________________________________________________________________________
to GND ...........................................................-0.3V to +6.0V
= +1.2V to +5.5V, T
Reset Threshold
to Reset Delay
PARAMETER
A
= T
MIN
to T
SYMBOL
MAX
V
V
I
RAMP
t
t
t
V
V
RAMP
t
t
WD2
WD1
WD1
I
HYST
t
WD
WD
CC
RP
CC
TH
, unless otherwise specified. Typical values are at V
T
T
V
V
V
See V
selection table
V
100mV at 1mV/µs
C
C
V
C
C
C
C
C
C
C
C
C
C
V
A
A
CC
CC
CC
CC
SRT
SRT
SRT
SWT
SWT
SWT
SWT
SWT
SWT
SWT
SWT
SWT
SWT
CC
CC
CC
= 0°C to +125°C
= -40°C to 0°C
≤ 5.5V
≤ 3.3V
≤ 2.0V
falling from V
= 0 to 1.23V; V
= 1.6V to 5V (V
TH
= 1500pF
= 100pF
+ 0.3V)
+ 0.3V)
= 1500pF
= 100pF
= 1500pF
= 100pF
= 1500pF
= 100pF
= 1500pF
= 100pF
= 1500pF
= 100pF
CONDITIONS
T A = -40°C to+125°C
TH
Continuous Power Dissipation (T
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
CC
RAMP
+ 100mV to V
8-Pin SOT23 (derate 8.9mW/°C above +70°C)............714mW
= 1.6V to 5V
rising)
TH
-
CC
5.692
1.173
5.692
728.6
728.6
91.08
45.53
V
= +5V and T
MIN
200
1.0
1.2
2%
TH
-
A
= +70°C)
121.43
7.590
0.506
1.235
7.590
0.506
971.5
64.77
971.5
64.77
60.71
TYP
8.09
4.05
250
4.2
3.7
0.8
20
5
A
= +25°C.) (Note 1)
1214.4
1214.4
151.80
V
9.487
1.297
9.487
75.89
MAX
300
5.5
5.5
TH
2%
10
9
8
+
UNITS
ms
ms
ms
ms
ms
ms
µA
nA
µs
%
V
V
V