TPD4123AK is a high-voltage PWM DC brushless motor driver that supports 3 shunt resistance current detection. It is equipped with a level-shifted high-side driver, low-side driver, over-temperature protection circuit, under-voltage protection circuit, output IGBT, FRD, and can directly drive DC brushless motors with control signals from microcontrollers.
The TPD4123AK is a high‑voltage, high‑current PWM brushless motor driver built on a SOI process. It integrates level‑shifted high‑side and low‑side drivers, over‑temperature and undervoltage protection, built‑in bootstrap diodes, and a 7 V regulator.
The document provides pin descriptions, block diagrams, absolute maximum ratings, package dimensions (HDIP26‑P‑1332‑2.00, 26‑pin DIP), and handling precautions for the MOS‑based device. This manual is written in Japanese.
| Supply voltage Vcc | 18 V |
|---|---|
| Continuous output current Iout | 1 A |
| Pulse output current | 2 A |
| Input voltage VN range | -0.5 V to 7 V |
| Regulator output current IREG | 50 mA |
| Operating junction temperature Tspr | -40 °C to 135 °C |
| Maximum junction temperature Tj | 150 °C |
The device supports three shunt‑resistor current‑detection inputs.
The dead‑time can be set as low as 1.4 µs.
The VREG pin outputs a regulated 7 V.