| Description | MITSUMI Battery Backup IC Battery Backup IC 1. Background of Development Around 1985 when began the sales of IC for microcomputer peripheral equipment and system reset IC, a set manufacture inquired of us about IC for control of memory. It was a good change for us to decide a joint development of general purpose IC. This resulted in the development of PST531 and PST532. In 1989 they were improve... |
| Features |
ly over to battery, and monitor the residual voltage of the battery, to take a few examples.
3. Basic Configuration Fig. 1 below illustrates the basic configuration of the backup IC. We have PST531, PST532 and MM1026 as IC of the basic configuration.
3-1 Battery/Main Supply Changeover Circuit 1. 3.3V detect circuit · · · Main supply detection 2. Tra... |
| Datasheet |
 PST518 Datasheet - 102.29KB |
