MAX6338KUB+ Maxim Integrated Products, MAX6338KUB+ Datasheet - Page 6

• Manufacturer Part Number: MAX6338KUB+
• Description: IC VOLT MONITOR QUAD 10-UMAX
• Manufacturer: Maxim Integrated Products
• Type: Multi-Voltage Supervisorr

Specifications of MAX6338KUB+

• Number Of Voltages Monitored: 4
• Output: Open Drain or Open Collector
• Reset: Active Low
• Voltage - Threshold: 2.19V, 2.93V, Adj, Adj
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Manual Reset: Resettable
• Watchdog: No
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Supply Current (typ): 40 uA
• Maximum Power Dissipation: 444 mW
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Output Type: Open Collector / Drain
• Monitored Voltage: - 5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5 V
• Undervoltage Threshold: Adjustable, 2.85 V, 2.13 V, Adjustable
• Overvoltage Threshold: Adjustable, 3 V, 2.25 V, Adjustable
• Lead Free Status / RoHS Status: Lead free / RoHS 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