MAX6339BUT-T Maxim Integrated, MAX6339BUT-T Datasheet - Page 7

• Manufacturer Part Number: MAX6339BUT-T
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX6339r

Specifications of MAX6339BUT-T

• Number Of Voltages Monitored: 4
• Monitored Voltage: - 5 V, 1.8 V, 2.5 V, 3 V
• Undervoltage Threshold: 4.5 V, 3 V
• Overvoltage Threshold: 3.15 V, 4.75 V
• Output Type: Active Low, Open Drain
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 280 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23
• Chip Enable Signals: No
• Maximum Power Dissipation: 695.7 mW
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Supply Current (typ): 55 uA
• Supply Voltage - Min: 1 V

Figure 2.
Figure 3. Interfacing to Different Logic Supply Voltage
Figure 4. Setting the Auxiliary Monitor
RESET
V
IN_
TH_
RESET Output Timing Diagram
V
INTH
IN2 = +3.3V
MAX6339
IN2
R1
R2
GND
t
RD
_______________________________________________________________________________________
10%
RESET
V
REF
Quad Voltage µP Supervisory Circuit
= 1.23V
100kΩ
R1 = R2
RESET
(
V
1.23
INTH
t
RP
- 1
GND
+5V
V
CC
V
)
TH_
90%
For -V
and R2 = 2.49kΩ,
The MAX6339 is normally powered from the monitored
IN2 supply input. All monitor inputs are immune to short
supply transients. If higher immunity is desired in noisy
applications, connect 0.1µF bypass capacitors from the
IN2 input to ground. Additionally, capacitance can be
added to IN1, IN3, and IN4 to increase their noise
immunity.
TRANSISTOR COUNT: 896
PROCESS: BiCMOS
Figure 5. Negative Voltage Monitoring Beyond -5V
TOP VIEW
Power-Supply Bypassing and Grounding
IN
-5V
= -12V nominal, VI
V
R1 = 2.49kΩ
R2
R1
INTH
in SOT Package
IN1
IN2
IN3
1
2
3
R1 = 3.48kΩ
✕
MAX6339
SOT23
V
[(-11.1 / -4.63) -1]
REF
NTH
Pin Configuration
R1 = R2 ×
Chip Information
= 1.23V
= -11.1V, V
[(
4
6
5
V
V
INTH
TH
RESET
GND
IN4
)
-1
TH
]
= -4.63V,
7