Toshiba Discrete Solid State Drive (SSD) Solutions

Toshiba Discrete Solid State Drive (SSD) Solutions feature a broad product lineup that meets current requirements with TVS, Shottkey Barrier Diodes (SBD), LDOs, Load Switch ICs, and the powerful eFuse IC. These SSDs can parse through data quicker than a traditional Hard Disk Drive (HDD). As SSD technology improves, it will require power circuitry that meets increasingly rigorous power demands and protection that keeps essential data safe from failures. Toshiba offers a comprehensive lineup of load switches and MOSFETs for controlling power inputs, protection ICs, and diodes designed to handle abnormal input power conditions and overvoltage surges during hotplug.

Features

Providing a robust power protection solution in a small area
Keeping on-resistance low to produce minimal heat
Increasing heat dissipation capabilities with efficient packaging

Application notes and other materials to help with design
Aiding in current protection standards (IEC-62368-1 and others) with eFuse

Block Diagram

Power Protection Circuits Solution

External electrostatic discharge (ESD), abnormal power supply inputs, and overvoltage surges during hot swaps often cause system problems. To protect valuable data and PMICs from these damages, a combination of eFuse IC, ESD protection diodes, Zener diodes, and Schottky barrier diodes is very effective.

Toshiba's eFuse IC implements various protection functions, such as ultra-high-speed short-circuit protection and overcurrent, overvoltage, and in-rush current suppression in one package. Also, since it has acquired IEC62368-1 (G.9), it is possible to provide a simpler and stronger protection circuit than before.

In addition, high IPP ESD protection diodes or Zener diodes can counter several ns to ms ESD surges and transient voltage. Combining with SBDs, a more robust protection circuit can be created, which measures negative voltage and prevents reverse current.

Power Protection BLOCK DIAGRAM

Power Distribution Switches Solution

Choosing a power switch and LDO for voltage conversions is especially important for low-voltage/high-current power control.

In some cases, low-voltage lines do not meet the minimum voltage requirements for many popular load switches. The load switch IC TCK207AN is recommended, which operates at only 0.75V for low-voltage power supply switches. It also has a low on-resistance of 21mΩ and can output up to 2.0A. Toshiba's small MOSFET, which has low on-resistance, is also recommended and can be found in various packages and configurations.

If the power rail itself is insufficient, an LDO regulator is recommended. For instance, the low-power consumption LDO TCR3U series features a wide output voltage of 0.8V to 5.0V with low current consumption. Various built-in functions reduce quiescent current and improve transient response.

The large current LDO TCR15AG series adopts dual-power supply technology and can output up to 1.5A with a wide output voltage of 0.6V to 3.6V and ultra-low dropout voltage. LDO regulators are ideal because they provide very accurate voltage rails with minimal dropout and fit on just about any design.