MB3773PF-G-BND-JNE1 Fujitsu Semiconductor America Inc, MB3773PF-G-BND-JNE1 Datasheet - Page 15

• Manufacturer Part Number: MB3773PF-G-BND-JNE1
• Description: IC POWER SUPPLY MONITOR 8SOP
• Manufacturer: Fujitsu Semiconductor America Inc

Specifications of MB3773PF-G-BND-JNE1

• Applications: Power Supply Monitor
• Voltage - Supply: 3.5 V ~ 16 V
• Current - Supply: 600µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Other names: 865-1022

V
V
CC2
CC1
Example : Comp. 1, Comp. 2
Notes : The 5 V supply voltage is monitored by the MB3773.
(12 V)
(5 V)
C
EXAMPLE 4: Monitoring Two Supply Voltages (with hysteresis, reset output and NMI)
T
The 12 V supply voltage is monitored by the external circuit. Its output is connected to the NMI
terminal and, when voltage drops, Comp. 2 interrupts the logic circuit.
Use V
above.
The detection voltage of the V
a hysteresis width of approximately 0.2 V.
V
: MB4204, MB47393
CC2
Hysteresis width
Detection voltage
detection voltage and hysteresis width can be found using the following formulas:
CC1
(
5 V) to power the comparators (Comp. 1 and Comp. 2) in the external circuit shown
1
2
3
4
MB3773
V
R
5.1 k
R
1.2 k
V
V
HYS
8
7
6
5
1
2
2H
2L
V
R
2H
R
3
CC2
3
R
R
5
(R
4
V
(
4.7 k
R
R
// R
2L
5
5
4
12 V) supply voltage is approximately 9.2 V/9.4 V and has
// R
5
5
V
)
Comp. 1
REF
30 k
R
180 k
+
3
_
R
V
4
REF
(Approximately 9.4 V in the above illustration)
(Approximately 9.2 V in the above illustration)
Comp. 2
+
_
R
10 k
6
RESET
RESET
CK
NMI or port
GND
MB3773
Logic circuit
15