MAX6748KA+T Maxim Integrated Products, MAX6748KA+T Datasheet - Page 3
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MAX6748KA+T
Manufacturer Part Number
MAX6748KA+T
Description
IC RESET MPU W/ADJ RESET SOT23-8
Manufacturer
Maxim Integrated Products
Type
Simple Reset/Power-On Resetr
Datasheet
1.MAX6749KAT.pdf
(14 pages)
Specifications of MAX6748KA+T
Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active Low
Reset Timeout
Adjustable/Selectable
Voltage - Threshold
Adjustable/Selectable
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-8
Monitored Voltage
1.575 V to 5 V
Output Type
Active Low, Push-Pull
Manual Reset
Not Resettable
Watchdog
Watchdog
Battery Backup Switching
No Backup
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1 V
Supply Current (typ)
5 uA
Maximum Power Dissipation
714 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Power-up Reset Delay (typ)
9.487 ms
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MAX6748KA+T
MAX6748KA+TTR
MAX6748KA+TTR
ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: Production testing done at T
Fast Watchdog Timeout Period,
SET Ratio = 64,
(MAX6752/MAX6753)
Fast Watchdog Minimum Period
(MAX6752/MAX6753)
SWT Ramp Current
SWT Ramp Threshold
RESET Output-Voltage LOW
Open-Drain, Push-Pull
(Asserted)
RESET Output-Voltage HIGH,
Push-Pull (Not Asserted)
RESET Output Leakage Current,
Open Drain
DIGITAL INPUTS (MR, SET0, SET1, WDI, WDS)
MR Minimum Pulse Width
MR Glitch Rejection
MR to RESET Delay
MR Pullup Resistance
WDI Minimum Pulse Width
RESET IN
RESET IN Threshold
RESET IN Leakage Current
RESET IN to RESET Delay
Input Logic Levels
CC
= +1.2V to +5.5V, T
µP Reset Circuits with Capacitor-Adjustable
PARAMETER
_______________________________________________________________________________________
A
= T
MIN
to T
A
SYMBOL
V
MAX
I
RESET IN
= +25°C. Over temperature limits are guaranteed by design.
V
RESET IN
I
t
RAMP
I
V
RAMP
V
WD1
LKG
V
V
V
V
OH
OL
, unless otherwise specified. Typical values are at V
IH
IH
IL
IL
Reset/Watchdog Timeout Delay
C
C
V
V
V
V
V
V
V
V
V
V
V
V
Pullup to V
RESET IN falling at 1mV/µs
SWT
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
RESET
SWT
SWT
= 1.6V to 5V (V
≥ 1.0V, I
≥ 2.7V, I
≥ 4.5V, I
≥ 1.8V, I
≥ 2.25V, I
≥ 4.5V, I
> V
≥ 4.0V
< 4.0V
= 0 to 1.23V, V
= 1500pF
= 100pF
= 5.5V
TH
, reset not asserted,
CC
SINK
SINK
SINK
SOURCE
SOURCE
SOURCE
CONDITIONS
= 50µA
= 1.2mA
= 3.2mA
T A = -40°C to +125°C
RAMP
CC
= 200µA
= 800µA
= 500µA
= 1.6V to 5V
rising)
CC
0.8 x V
0.8 x V
0.8 x V
0.7 x V
11.38
1.173
1.216
= +5V and T
2000
MIN
200
300
2.4
-50
12
1
CC
CC
CC
CC
15.18
1.235
1.235
TYP
1.01
250
100
200
20
±1
20
A
= +25°C.) (Note 1)
0.3 x V
18.98
1.297
1.254
MAX
+50
300
0.3
0.3
0.4
1.0
0.8
28
CC
UNITS
ms
kΩ
nA
µA
nA
ns
µs
ns
ns
ns
µs
V
V
V
V
V
3