MAX6338IUB Maxim Integrated Products, MAX6338IUB Datasheet - Page 6

• Manufacturer Part Number: MAX6338IUB
• Description: IC VOLT MONITOR QUAD 10-UMAX
• Manufacturer: Maxim Integrated Products
• Type: Multi-Voltage Supervisorr

Specifications of MAX6338IUB

• Number Of Voltages Monitored: 4
• Output: Open Drain or Open Collector
• Reset: Active Low
• Voltage - Threshold: 1.58V, 2.19V, 2.93V, 4.38V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

output toggles in one direction or the other. These
resistors are not required when using the MAX6338
because hysteresis is built into the device. MAX6338
hysteresis is typically 0.3%.
The open-drain outputs of the MAX6338 can be config-
ured to detect an undervoltage condition. Figure 2
shows a configuration where a low at a comparator out-
put indicates an undervoltage condition, which in turn
causes an LED to light.
Quad Voltage Monitor in µMAX Package
6
Figure 2. Quad Undervoltage Detector with LED Indicators
Figure 4. Window Detection
INPUT
V
V
V
TH1
REF
TH4
_______________________________________________________________________________________
= 1.23V
=
=
+5V
(
(
*OPTIONAL
V1
V2
V3
V4
1 +
1 +
R2
R1
R4
R3
)
)
IN1
IN2
IN3
IN4
V
V
R2
R4
REF
REF
R1
R3
Undervoltage Detection Circuit
MAX6338
GND
V
CC
IN1
IN2
IN3
IN4
OUT1
OUT2
OUT3
OUT4
MAX6338HUB
GND
+5V
V
CC
0.1 F*
OUT1
OUT2
OUT3
OUT4
OUT1
The MAX6338 can also be used in applications such as
system supervisory monitoring, multivoltage level
detection, and V
A window detector circuit uses two auxiliary inputs in a
configuration such as the one shown in Figure 4.
External resistors R1–R4 set the two threshold voltages
(V
width ( V
voltages (Figure 5).
Figure 3. V
Figure 5. Output Response of Window Detector Circuit
TH1
V
IN
(+5V)
and V
OUT1
OUT4
OUT
CC
TH
TH4
) is the difference between the threshold
Bar Graph Monitoring
IN1
IN2
IN3
IN4
) of the window detector circuit. Window
CC
V
TH4
MAX6338
bar graph monitoring (Figure 3).
GND
+5V
V
CC
V
TH
OUT1
OUT2
OUT3
OUT4
Window Detection
V
TH1
D1
D2
D3
D4