Toshiba Releases Smart Gate Driver Photocoupler that Helps Simplify Design of Peripheral Circuits for Power Devices
August 31, 2022
Toshiba Electronic Devices & Storage Corporation
KAWASAKI, Japan—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has expanded its lineup of smart gate driver photocouplers, the isolated gate driver with overcurrent protection for a power device, either a MOSFETs or IGBT. The new device, “TLP5222,” a 2.5A output smart gate driver photocoupler, has a built-in automatic recovery function from protective operation. Shipments start today.
TLP5222 constantly monitors the drain-source voltage (VDS)[1] or collector-emitter voltage (VCE)[2] of the power device that it drives. Built-in overcurrent detection and a protective function detect any rise in VDS or VCE, the result of overcurrent generated in the power device, and gently turn it off.
The new photocoupler also has a built-in automatic recovery function that resets the product to normal operation 25.5μs (typ.) after protective operation is triggered. This simplifies sequence setting in the controller. It also incorporates an isolated FAULT status feedback function that transmits a fault signal to the controller when overcurrent is detected, and an active Miller clamp function that prevents upper and lower power devices from being short-circuited[3], helping to simplify design and reduce external circuits.
Housed in an SO16L package that ensures creepage and clearance distances of 8mm (min), TLP5222 can also be used in equipment requiring high insulation performance. In addition, with its wide rated operating temperature range of between -40°C and 110°C, it is suitable for various applications in harsh thermal environments such as photovoltaic power generation systems and uninterruptible power supplies (UPSs).
The lineup also includes TLP5212, TLP5214A and TLP5214, which do not have a built-in automatic recovery function but reset to their normal operation by a signal input to their LED, allowing users to select the right products for use conditions.
Notes:
[1] For a power MOSFETs
[2] For an IGBT
[3] A failure phenomenon where Miller current during switching generates noise or malfunction of the power device that turns on the upper or lower power devices.
Applications
- MOSFETs/IGBT gate drive
- Industrial inverters and AC Servos
- Inverters for renewable energy (Photovoltaic (PV) inverters, etc.)
- Switching power supplies (UPS, etc.)
Features
- Built-in automatic recovery function from protective operation
- Peak output current rating: IOPH/IOPL = ±2.5 A
- Built-in protection functions such as overcurrent detection, isolated fault status feedback, and active Miller clamp
- An SO16L package that ensures creepage and clearance distances of 8mm (min)
Main Specifications
(Unless otherwise specified, @Ta=-40°C to 110°C)
| Part number | TLP5222 | ||
|---|---|---|---|
| Package | Name | SO16L | |
| Size (mm) | 10.3 × 10 (typ.) t : 2.3 (max) |
||
Absolute maximum ratings |
Operating temperature Topr (°C) | -40 to 110 | |
| Peak output current IOPH/IOPL (A) | ±2.5 | ||
| Recommended operation conditions | Output side total supply voltage (VCC2−VEE) (V) | 15 to 30 | |
| FAULT feedback IC supply voltage VCC1 (V) | 2.7 to 5.5 | ||
| Electrical characteristics | Supply current ICC2H, ICC2L max (mA) | 5 | |
| Threshold input current (L/H) IFLH max (mA) | 6.0 | ||
| DESAT threshold voltage VDESAT typ. (V) | 6.6 | ||
| Switching characteristics | Propagation delay time tpHL, tpLH max (ns) | 250 | |
| DESAT input mute time tDESAT(MUTE) typ. (μs) | 25.5 | ||
Common-mode transient immunity CMH, CML min (kV/μs) |
@Ta=25°C, CF=Open | ±25 | |
| @Ta=25°C, CF=1nF | ±50 | ||
| Isolation characteristics | Isolation voltage BVS min (Vrms) | @Ta=25°C | 5000 |
| Sample Check & Availability |  |
||
Follow the links below for more on the new product.
TLP5222
Follow the link below for applications on Toshiba’s smart gate driver photocouplers.
Smart Gate Driver Photocoupler TLP5214A/TLP5214/TLP5212/TLP5222 Application Note -Introduction-（PDF: 1.1MB）
Smart Gate Driver Photocoupler TLP5214A/TLP5214/TLP5212/TLP5222 Application Note -Advanced edition-（PDF: 1.4MB）
Follow the link below for more on Toshiba’s isolators/solid state relays.
Isolators/Solid State Relays
To check availability of the new products at online distributors, visit:
TLP5222
Customer Inquiries
Optoelectronic Device Sales & Marketing Dept.
Tel: +81-44-548-2218
* Company names, product names, and service names may be trademarks of their respective companies.
* 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.