MAX16040PLA31+T Maxim Integrated Products, MAX16040PLA31+T Datasheet - Page 14

• Manufacturer Part Number: MAX16040PLA31+T
• Description: IC BATTERY BACKUP 3.08V 8-UDFN
• Manufacturer: Maxim Integrated Products
• Type: Battery Backup Circuitr

Specifications of MAX16040PLA31+T

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 3.08V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-µDFN
• Undervoltage Threshold: 3 V
• Overvoltage Threshold: 3.15 V
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 0 V
• Supply Current (typ): 22 uA
• Maximum Power Dissipation: 380.6 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Low-Power Battery Backup
Circuits in Small µDFN Packages
Figure 8. (a) Adding Additional Hysteresis to the Power-Fail Comparator. (b) Shifting the Additional Hysteresis above V
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PFO
V
V
V
V
V
0V
TRIP
H
L
PFT
PFH
V
(a)
IN
=
R1
R2
=
=
=
(
V
=
V
PFT
PFT
1 235
12
V
.
PFT
mV
⎛
⎜
⎝
C1
1
+
TO µP
+
V
⎛
⎜
⎝
1
V
V
L
PFH
R
+
R
R3
1
2
V
R
R
)
TRIP
+
2
⎛
⎜
⎝
1
PFI
PFO (PUSH-PULL)
1
⎞
⎟
⎠
R
R
+
1
3
MAX16033–
MAX16040
V
H
⎞
⎟ −
⎠
R
R
GND
1
2
V
CC
+
R
R
1
3
R
R
1
3
V
⎞
⎟
⎠
CC
V
IN
V
V
V
V
V
V
TRIP
H
L
PFT
PFH
D
PFO
0V
(b)
V
=
=
=
IN
=
=
R1
R2
(
V
DIODE FORWARD VOLTAGE
=
V
TRIP
1 235
PFT
12
V
.
PFT
mV
+
V
⎛
⎜
⎝
C1
1
V
TO µP
PFH
+
V
TRIP
R
R
R3
)
⎛
⎜
⎝
1
2
1
⎞
⎟
⎠
+
PFI
PFO (PUSH-PULL)
R
R
2
1
MAX16033–
MAX16040
V
H
+
GND
V
CC
R
R
1
3
⎞
⎟ −
⎠
TRIP
R
R
1
3
V
IN
V
D