Toshiba Releases Automotive Photorelay with Output Withstand Voltage of 900V
August 29, 2024
Toshiba Electronic Devices & Storage Corporation
KAWASAKI, Japan–Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched “TLX9152M,” an automotive photorelay[1] with an output withstand voltage of 900V (min) that is highly suitable for application in high voltage automotive batteries. The new photorelay is housed in an SO16L-T package. Volume shipments start today.
Improved charge times and a longer cruising range are essential for wider adoption of electric vehicles, and both require more efficient operation of battery systems. Battery management systems (BMS) realize efficient system operation by monitoring the battery charge status, plus the insulation between the battery and the vehicle body that is essential for the safe use of high-voltage batteries. In BMS that must handle high voltages, electrically insulated photorelays are used.
Photorelays commonly used in battery systems must have a withstand voltage of approximately twice the system voltage. Given this, an output withstand voltage of over 800V is necessary for a 400V system. Toshiba’s new product is suitable for 400V systems as it has an output withstand voltage / supply voltage of 900V.
TLX9152M is housed in an SO16L-T package, widely used for high-voltage photorelays including Toshiba’s TLX9160T, which has an output withstand voltage of 1500V. Use of this package facilitates common circuit board pattern design.
Note:
[1] In photorelays, the primary (control) side and the secondary (switch) side are electrically isolated. Switches connected directly to the AC line and switches between equipment that differ in ground potential can be controlled through insulating barriers.
Applications
Automotive equipment
- Battery Management Systems: battery voltage monitoring, mechanical relay sticking detection, ground fault detection, etc.
- Replacement of mechanical relays
Features
- Output withstand voltage: VOFF=900V (min)
- Normally open (1-Form-A) device
- Avalanche current rating: IAV=0.6mA
- High isolation voltage: 5000Vrms (min)
- AEC-Q101 qualified
- Compliant with IEC 60664-1 International Standard
Main Specifications
(Unless otherwise specified, Ta=25°C)
| Part number | TLX9152M | |||
|---|---|---|---|---|
| Contact | 1a | |||
| Absolute maximum rating |
Forward current IF (mA) | 30 | ||
| On-state current ION (mA) | 50 | |||
| Operating temperature Topr (°C) | -40 to 125 | |||
| Avalanche current IAV (mA) | 0.6 | |||
| Electrical characteristics |
Off-state current IOFF (nA) |
VOFF=900V | Max | 100 |
| Output withstand voltage VOFF (V) |
IOFF=10μA | Min | 900 | |
| Recommended operating conditions |
Supply voltage VDD (V) | Max | 900 | |
| Coupled electrical characteristics |
Trigger LED current IFT (mA) |
ION=50mA | Max | 3 |
| Return LED current IFC (mA) |
Ta=-40 to 125°C | Min | 0.05 | |
| On-state resistance RON (Ω) |
ION=50mA, IF=10mA, t<1s |
Max | 250 | |
| Switching characteristics |
Turn-on time tON (ms) | Max | 1 | |
| Turn-off time tOFF (ms) | Max | 1 | ||
| Isolation characteristics |
Isolation voltage BVS (Vrms) | Min | 5000 | |
| Clearance distance (mm) | Min | 8 | ||
| Creepage distance (mm) | Min | 8 | ||
| Package | Name | SO16L-T | ||
| Size (mm) | Typ. | 10.3×10.0×2.45 | ||
| Stock Check & Purchase |  |
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Follow the link below for more on the new product.
Follow the link below for more on Toshiba’s isolators and solid state relays.
Follow the link below for more on Toshiba’s automotive devices.
To check availability of the new product at online distributors, visit:
TLX9152M
Customer Inquiries
Optoelectronic Device Sales & Marketing Dept.
Tel: +81-44-548-2218
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* Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.