Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has introduced a new photovoltaic-output photocoupler, the TLX9920, in a thin SO6L package with an extended creepage distance, designed for solid state relays (SSR) in automotive applications. Volume shipments begin today.
With demand rising for longer-lasting automotive relay solutions, manufacturers are increasingly shifting from mechanical relays to SSRs, a trend that is expected to accelerate as vehicle systems grow more advanced.
The TLX9920 is designed to drive the gates of high-voltage power MOSFETs used in SSRs. Paired with a suitable MOSFET, it enables high-voltage, high-current switching performance that is difficult to achieve with traditional photorelays.
Because SSRs have no moving contacts, they eliminate contact wear and reduce the need for periodic maintenance. The TLX9920, photovoltaic-output photocoupler is also qualified to the AEC-Q101 automotive reliability standard.
Housed in an SO6L package with a creepage distance of more than 8 mm, the TLX9920 supports a high isolation voltage of BVs = 5000 Vrms.
By comparison, the IEC 60664-1/2 standard requires at least 5.6 mm creepage for use in pollution degree 2 environments with operating voltages of 400 V and above, a requirement the TLX9920 comfortably meets.
Thanks to its robust isolation and package design, the TLX9920 is well-suited for high-voltage systems and harsh operating conditions.
It can be used across a broad range of switching applications, including automotive systems, energy storage systems (ESS), and industrial power equipment.
Toshiba aims to support a safer, more sustainable society by continuing to develop reliable, innovative components for automotive and industrial markets.
| Notes: | |
| 1 | Semiconductor relays that are used to control high-power loads (heating elements, motors) with low-voltage signals. The primary (control) side and the secondary (switching) side are electrically isolated by an isolation barrier, which allows switching of circuits directly connected to AC lines, or switching between devices with different ground potentials. |
| 2 | The standard that specifies principles, requirements, and test methods for insulation coordination for systems up to AC 1000V or DC 1500V. |
Applications
- Automotive equipment: Battery management systems (BMS), onboard chargers, inverters, etc.
- Industrial equipment: Energy storage systems (ESS)
Features
- Thin and long creepage package: SO6L (3.84×10.0×2.1 (mm))
- Long creepage distance: 8mm (min)
- High isolation voltage: BVS?5000Vrms (min)
- Open voltage: VOC?5V (min)
- Short-circuit current: ISC?8?A (min)
- AEC-Q101 qualified
Main Specifications
| (Unless otherwise specified, Ta=25?) | ||||
| Part Number | TLX9920 | |||
| Discharge circuit | Integrated | |||
| Absolute maximum ratings |
Operating temperature Topr (°C) | -40 to 125 | ||
| Electrical characteristics |
Input forward voltage VF (V) | IF=10mA | Min | 1.5 |
| Typ. | 1.65 | |||
| Max | 1.8 | |||
| Coupled electrical characteristics |
Open voltage VOC (V) | IF=10mA | Min | 13.5 |
| Short-circuit current ISC (?A) | IF=10mA | Min | 8 | |
| Trigger LED current IFT (mA) | Max | 3 | ||
| Switching characteristics |
Turn-on time ton (ms) | Typ. | 0.6 | |
| Max | 1.0 | |||
| Turn-off time toff (ms) | Typ. | 0.1 | ||
| Max | 1.0 | |||
| Isolation characteristics |
Isolation voltage BVS (Vrms) | Min | 5000 | |
| Clearance distance (mm) | Min | 8 | ||
| Creepage distance (mm) | Min | 8 | ||
| Package | Name | SO6L | ||
| Size (mm) | Typ. | 3.84×10.0×2.1 | ||
| Sample Check & Availability | Buy Online | |||
