TI SN6507DGQRQ1

The SN6507-Q1 is a high voltage, high frequency push-pull transformer driver providing isolated power in a small solution size. The device comes with the push-pull topology’s benefits of simplicity, low EMI, and flux cancellation to prevent transformer saturation. Further space savings are achieved through duty-cycle control, which reduces component count for wide-input ranges, and by selecting a high switching frequency, reducing the size of the transformer. The device integrates a controller and two 0.5-A NMOS power switches that switch out of phase. Its input operating range is programmed with precision undervoltage lockouts. The device is protected from fault conditions by over-current protection (OCP), adjustable under-voltage lockout (UVLO), over voltage lockout (OVLO), thermal shutdown (TSD), and break-before-make circuitry. The programmable Soft Start (SS) minimizes inrush currents and provides power supply sequencing for critical power up requirements. Spread Spectrum Clocking (SSC) and pin-configurable Slew Rate Control (SRC) further reduces radiated and conducted emissions for ultra-low EMI requirements. The SN6507-Q1 is available in a 10-pin HVSSOP DGQ package. The device operation is characterized for a temperature range from -55°C to 125°C.

• Functional Safety-Capable
• Documentation available to aid functional safety system design: SN6507-Q1
• AEC-Q100 (Grade 1) qualified for automotive applications
• Create a custom design using the SN6507-Q1 with the WEBENCH Power Designer
• Push-pull driver for isolation transformers
• Wide input voltage range: 3 V to 36 V
• Input voltage tolerance up to 60 V
• Duty-cycle control for line regulation
• 0.5-A switches with programmable current limit
• Wide switching frequency range: 100 kHz to 2 MHz
• Compatible with small-footprint transformers
• Programmable switching frequency
• External clock synchronization option
• Low noise and emissions
• Symmetric push-pull topology
• Spread sprectrum clocking
• Pin-configurable slew-rate control
• Protection Features
• Adjustable under voltage lockout (UVLO)
• Programmable over-current protection (OCP)
• Over voltage lockout (OVLO)
• Thermal shutdown (TSD)
• Wide temperature range: -55°C to 125°C
• Programmable soft-start to reduce in-rush current
• 10-Pin HVSSOP (DGQ) package with thermal pad

• Isolated power supplies for:
• Battery management system (BMS)
• On-board charger
• DC/DC converter
• Inverter and motor control