MAX6443US26L+T Maxim Integrated Products, MAX6443US26L+T Datasheet - Page 9

• Manufacturer Part Number: MAX6443US26L+T
• Description: IC MPU RESET 2.625V SOT143-4
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

Specifications of MAX6443US26L+T

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 2.625V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-143, SOT-143B, TO-253AA
• Monitored Voltage: 1 V to 5.5 V
• Undervoltage Threshold: 2.55 V
• Overvoltage Threshold: 2.7 V
• Output Type: Active Low, Push-Pull
• Manual Reset: Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 280 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1 V
• Supply Current (typ): 7 uA
• Maximum Power Dissipation: 320 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX6443US26L+T; MAX6443US26L+TTR

Figure 9. Ensuring RESET Valid to V
Table 1. Reset Voltage Threshold
Table 2. Manual Reset Setup Period (t
PART NO. SUFFIX
PART NO. SUFFIX
( _ _ )
46
44
31
29
26
23
22
17
16
( _ )
K
L
S
T
µP Reset Circuits with Long Manual Reset
MAX6443
MAX6445
MAX6447
MAX6449
MAX6451
_______________________________________________________________________________________
GND
RESET
V
CC
MANUAL RESET SETUP
CC
V
CC
THRESHOLD (V)
= 0V
V
CC
VOLTAGE
PERIOD (s)
100kΩ
NOMINAL
4.625
4.375
3.075
2.925
2.625
2.313
2.188
1.665
1.575
10.08
6.72
3.36
1.68
MR
)
The area below the curves of the graph is the region in
which these devices typically do not generate a reset
pulse. This graph was generated using a falling pulse
applied to V
old (V
ed (reset threshold overdrive). As the magnitude of the
transient increases (V
threshold), the maximum allowable pulse width
decreases. Typically, a V
below the reset threshold and lasts 20µs or less does
not cause a reset pulse to be asserted.
Table 3. Standard Versions Table
MAX6443US16L
MAX6443US23L
MAX6443US26L
MAX6443US29L
MAX6443US46L
MAX6444US16L
MAX6444US23L
MAX6444US26L
MAX6444US29L
MAX6444US46L
MAX6445UK16L
MAX6445UK23L
MAX6445UK26L
MAX6445UK29L
MAX6445UK46L
MAX6446UK16L
MAX6446UK23L
MAX6446UK26L
MAX6446UK29L
MAX6446UK46L
MAX6447UK16L
MAX6447UK23L
MAX6447UK26L
MAX6447UK29L
MAX6447UK46L
TH
PART
) and ending below it by the magnitude indicat-
CC
, starting above the actual reset thresh-
MARK
KAFW
KAGA
KAGB
KAGC
KAGD
AEAO
AEAQ
AEEM
AEEG
AEEH
AEEN
AEEO
AEEQ
KAFX
KAFY
KAFK
KAFZ
KAFL
AEEF
AEEP
AEAP
AEEK
AEEL
AEEJ
AEEI
TOP
CC
Setup Period
CC
goes further below the reset
transient that goes 100mV
MAX6448UK16L
MAX6448UK23L
MAX6448UK26L
MAX6448UK29L
MAX6448UK46L
MAX6449UT16L
MAX6450UT16L
MAX6451UT16L
MAX6452UT16L
MAX6449UT23L
MAX6449UT26L
MAX6449UT29L
MAX6449UT46L
MAX6450UT23L
MAX6450UT26L
MAX6450UT29L
MAX6450UT46L
MAX6451UT23L
MAX6451UT26L
MAX6451UT29L
MAX6451UT46L
MAX6452UT23L
MAX6452UT26L
MAX6452UT29L
MAX6452UT46L
PART
MARK
ABNW
ABNQ
ABEM
ABOA
ABNU
ABOB
ABOC
ABOD
AEEU
ABNP
ABNR
ABNS
ABNX
ABNY
ABNZ
ABNT
ABEN
ABNV
ABOE
ABOF
AEER
AEES
AEEV
ABEL
AEET
TOP
9