Fujitsu MB3807A
The MB3807A is a power management switching IC, designed to be compatible with the PCMCIA digital controller, to switch the VPP voltage of flash memory. When the switch is turned on, optimum voltage is applied to the gate of the internal charge pump N-ch MOS switch, providing a constant amount of ON resistance. The ON resistance is also kept to be low to reduce voltage drop at the VPP pin that is caused by large current flowing when data is written.| Part No. | MB3807A |
|---|---|
| Datasheet | MB3807A Download |
| Manufacturer |  Fujitsu |
| Description | Power Management Switching |
| Buy | Stock & Price |
DESCRIPTION
When data is written to or read from flash memory, it requires that the voltage at its power supply (VPP) be switched (to 12 V for writing and to 3.3 or 5.0 V for reading). In addition, the OFF time is much shorter than the ON time to prevent short-circuiting between the reading and writing power supplies when the device switches the VPP voltage for reading or writing data (break-before-make operation). sFEATURES
● Switching at low ON resistance For writing data: SWIN1 = 12 V, Ron = 0.3 Ω For reading data: SWIN2 = 5 V, Ron = 6.0 Ω SWIN2 = 3.3 V, Ron = 8.5 Ω● Wide range of supply voltages: VCC = 2.7 to 5.5 V
● Prevention of reverse current from the load at switch-off time
● ON time controllable with external pin
● Break-before-make operation s PACKAGE 16 pin Plastic SOP (FPT-16P-M04) MB3807A s PIN ASSIGNMENT (TOP VIEW) EN1A EN0A SWIN2A SWIN1A SWIN1B SWIN2B EN0B GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC DLYA SWOUTA SWOUTA SWOUTB SWOUTB DLYB EN1B (FPT-16P-M04) s LOGICAL OPERATION TABLE EN1 0 0 1 1 EN0 0 1 0 1 SW1 OFF OFF ON OFF SW2 OFF ON OFF OFF 2 MB3807A s PIN
DESCRIPTION
Pin No.
