M51951A,B/M51952A,B

REJ03D0775-0400 Rev.4.00 Sep 18, 2007

Page 5 of 7

Ambient Temperature Ta (°C)

–40

0

–20

20

40

80

60

100

Circuit Current vs. Ambient Temperature

(M51951B, M51952B)

700

0

300

200

100

500

400

600

Example of Application Circuit

Reset Circuit of M5195xx Series

M51951x

M51952x

RESET (

RESET)

Logic circuit

GND

GND

Supply

voltage

Supply

voltage

Output

Figure 1 Reset Circuit of M5195xx Series

Notes: 1. When the detecting supply voltage is 4.25 V, M51951, M51952, M51953 and M51954 are used.

When the voltage is anything except 4.25 V, M51955, M51956, M51957 and M51958 are used.

2. When the delay time is short, M51951, M51952, M51955 and M51956 are available. These ICs have a

delay capacity and the delay time is about 200

µs.

If a longer delay time is necessary, M51953, M51954, M51957 and M51958 are used.

3. If the M5195xx and the logic circuit share a common power source, type A (built-in load type) can be used

whether a pull-up resistor is included in the logic circuit or not.

overcome the pull-down resistor.

5. When the reset terminal in the logic circuit is of the low reset type, M51951, M51953, M51955 and M51957

are used and when the terminal is of the high reset type, M51952, M51954, M51956 and M51958 are used.

6. When a negative supply voltage is used, the supply voltage side of M5195xx and the GND side are

connected to negative supply voltage respectively.