3PEAK Announces TPM2351x Series Isolated Gate Drivers with ±150-kV/μs CMTI and 70-ns Transfer Delay
3PEAK (stock code: 688536), a semiconductor company focusing on the development of high-performance analog chips and embedded processors, has recently unveiled the TPM2351x series Isolated Gate Drivers with ±150-kV/μs CMTI, which can be widely used in IGBTs, SiC MOSFETs, and other power devices.
Highlights of TPM2351x
Single-Channel Isolated Gate Driver Compatible with Optocoupler Input
Outputs 4.5-A Peak Source Current and 5-A Peak Sink Current
40-V Output Power Voltage
Input Stage with 6-V Polarity Reversal Voltage Handling Capability
70-ns Transfer Delay
25-ns Inter-Device Delay Matching
35-ns Pulse Width Distortion
5-kVrms Enhanced Isolation Level
Minimum Common-Mode Transient Immunity (CMTI) of ±150kV/μs
WSOP Wide Package
Operating Temperature Range: –40℃ to +125℃
Advantages of TPM2351x
Minimum CMTI: ±150kV/μs
3PEAK TPM2351x series products can withstand Common-Mode Transient Immunity (CMTI) of ±150kV/μs or more. Therefore, they are extensively used in IGBTs, SiC MOSFETs, and other power devices. The figure below shows the output waveform of TPM2351X at ±160-kV/μs CMT, which indicates that the output is not affected by high transient interference at the primary and secondary edges.
Falling Edge CMT = 160 V/ns
Rising Edge CMT = 160 V/ns
Built-in Miller Clamp (TPM23514M)
TPM23514M provides a built-in Miller clamp to reduce the risk of power device crosstalk under high-speed switching. The following figure uses a double-pulse experiment to compare the waveforms of the gate-source voltage (Vgs) of the power device before and after the Miller clamp is applied. Before the Miller clamp is applied, the voltage change (ΔV) of the high-side switch Vgs reaches 5 V during the turn-on transient of the low-side switch. After the Miller clamp is applied, the voltage change (ΔV) is reduced to 2V, which greatly reduces the risk of crosstalk for the high-side switch.
Double-Pulse Test without the Miller Clamp Function
Double-Pulse Test with the Miller Clamp Function
Typical Application of TPM2351x Products
The TPM2351x series drivers support bipolar power supply and can effectively drive SiC MOSFETs, IGBTs, and other power devices. In addition, TPM23514M provides a built-in Miller clamp function, which can reduce the risk of power device mis-conductivity under high-speed switching.
Typical Application of TPM23513
Typical Application of TPM23514M
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