M51951AL/BL RENESAS [Renesas Technology Corp], M51951AL/BL Datasheet - Page 5

• Manufacturer Part Number: M51951AL/BL
• Description: Voltage Detecting, System Resetting IC Series
• Manufacturer: RENESAS [Renesas Technology Corp]

M51951A,B/M51952A,B
Example of Application Circuit
Reset Circuit of M5195xx Series
Notes: 1. When the detecting supply voltage is 4.25 V, M51951, M51952, M51953 and M51954 are used.
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
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2. When the delay time is short, M51951, M51952, M51955 and M51956 are available. These ICs have a
3. If the M5195xx and the logic circuit share a common power source, type A (built-in load type) can be used
4. The logic circuit preferably should not have a pull-down resistor, but if one is present, add load resistor R
5. When the reset terminal in the logic circuit is of the low reset type, M51951, M51953, M51955 and M51957
6. When a negative supply voltage is used, the supply voltage side of M5195xx and the GND side are
When the voltage is anything except 4.25 V, M51955, M51956, M51957 and M51958 are used.
delay capacity and the delay time is about 200 µs.
If a longer delay time is necessary, M51953, M51954, M51957 and M51958 are used.
whether a pull-up resistor is included in the logic circuit or not.
overcome the pull-down resistor.
are used and when the terminal is of the high reset type, M51952, M51954, M51956 and M51958 are used.
connected to negative supply voltage respectively.
M51951x
M51952x
Figure 1 Reset Circuit of M5195xx Series
Supply
voltage
GND
700
600
500
400
300
200
100
Circuit Current vs. Ambient Temperature
–40
0
Output
Ambient Temperature Ta (°C)
–20
V
(M51951B, M51952B)
CC
0
= 5V
R
L
20
40
RESET (RESET)
60
Logic circuit
80
Supply
voltage
GND
100
V
CC
L
to