ISL6752 is a high performance, low pin count zero voltage (ZVS) full bridge pulse width (PWM) controller. This controller can realize ZVS operation by starting at a fixed 50% duty cycle of the upper switch and adjusting the pulse width at the trailing edge of the lower switch. The ISL6752 has complementary PWM outputs for synchronous rectification control. With external control voltage, these complementary outputs can be dynamically advanced or delayed. This advanced BiCMOS design not only supports precise dead time control and resonant delay control, but also has an adjustable oscillator with a frequency up to 2MHz. In addition, when a jump pulse may occur, multi-phase pulse suppression can ensure corresponding output pulses at a low duty cycle.
The 1SL6752 is a high‑performance, low‑pin‑count zero‑voltage‑switching (ZVS) full‑bridge PWM controller designed for synchronous rectification with complementary PWM outputs. It offers adjustable dead‑time, resonant delay control, and an internal oscillator up to 2 MHz, along with over‑temperature and UVLO protection.
The datasheet lists electrical specifications such as a 9 V‑16 V supply range, operation from –40 °C to 105 °C, and a 16‑lead QSOP package. Typical application circuits for high‑voltage primary‑side and secondary‑side control are included, as well as performance curves, fault conditions, and package dimensions. This manual is written in Chinese.
| Operating Temperature Range | -40 °C to 105 °C |
|---|---|
| Start‑Up Current | 175 µA |
| Oscillator Frequency (adjustable) | up to 2 MHz |
| Package Type | 16‑lead QSOP |
| Over‑Temperature Protection | Yes, internal thermal shutdown |
The internal oscillator can be adjusted up to 2 MHz.
Yes, it has internal over‑temperature protection that shuts down the device at high temperature.
The device is supplied in a 16‑lead QSOP package.