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3PEAK Launches the TPM650xQ Series of High-Performance Automotive Push-Pull Transformer Drivers


3PEAK (stock code: 688536), a semiconductor company focusing on the development of high-performance analog chips and embedded processors, unveiled the TPM650xQ series of high-performance automotive push-pull transformer drivers.

The TPM650xQ series has built-in MOSFETs with a withstanding voltage of 25 V. It can reliably function within a temperature range from –40°C to +125°C. With competitive performance, the TPM650xQ series has been widely used in automotive bus interfaces, industrial instruments, and other terminal areas that require an isolated power supply.

• Wide Input Range: 2.25 V to 5.5 V
• Multiple Fixed Frequency Versions: 160 kHz, 420 kHz, 2.2 MHz
• Provides Frequency Jitter to Simplify EMI Design
• Support for EN:
• TPM6501xQ Series without EN Pins
• TPM6505xQ Series with EN Pins
• External CLK:
• Built-in Frequency Options: 160 kHz and 420 kHz
• External Frequency Range: 100 kHz to 1600 kHz
• Low Rds(on):
• Rds(on) 0.23 Ω@Vcc = 4.5 V
• Wide Operating Temperature Range: –40°C to +125°C
• Various Protection Functions: 1.5-A Cycle-by-cycle Current Limit Protection, OTP Protection, and Undervoltage Protection for the Primary Side
• Soft-start Function for Reducing Voltage Stress at Startup (Optional)
• Packages: SOT23-5 and SOT23-6


[Typical Application 1] 3.3 V to 5.5 V or 3.3 V to 5 V direct conversion

Application: 5 V to 5 V/3.3 V/12 V, 3.3 V to 3.3 V/5 V/12 V

Features: The structure is simple and easy to use, which is suitable for input and output voltages between 3 V and 5 V.




Efficiency and load regulation curve of typical application 1


[Typical Application 2] Low temperature rise from 12 V to 12 V/15 V in a dual-channel isolated output

Application: Single 12-V input to dual-channel isolated 12 V/15 V/20 V output

Features: VIN can exceed 5.5 V, switching losses are borne by external MOSFETs, and the temperature of the device is reduced.



[Typical Application 3] Highly integrated 5 V to dual-channel isolated 20-V solution

Application: 5 V to 20 V (or 23 V, then +15 V and –8 V via the TPR431 voltage divider)

Features: A push-pull transformer can achieve dual-channel isolated output, and the output is four times the input voltage.