Shanghai Juyi Electronic Technology Development Co., Ltd
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The JY02A is a fully integrated sensorless BLDC motor driver IC, designed for simple application, high efficiency, and reliable protection. It eliminates the need for external comparators or programming, offering excellent adaptability for various BLDC motor systems.
Typical applications: Robotic vacuums, automotive water pumps, circulation pumps, fans, compressors, power tools, automatic doors, AGV vehicles, and other BLDC-driven systems.
| Parameter | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|
| VDD | 4.5 | 5.0 | 5.5 | V | Supply voltage |
| IDD | — | 9 | — | mA | No load |
| VIL / VIH | 0.3 / 3.5 | — | — | V | Logic input level |
| EMF Voltage | 0.01 | — | 4.5 | V | Effective BEMF |
| Start Torque Voltage | 0 | — | 2.5 | V | QD pin |
| Under-Voltage | 0.75 | 0.8 | 0.85 | V | Protection |
| Over-Voltage | 2.95 | 3.0 | 3.05 | V | Protection |
| Constant Current Limit | 38 | 40 | 43 | mV | IS (A) pin |
| Over-Current Trip | 87 | 90 | 95 | mV | IS (B) pin |
| Pin | Name | Function |
|---|---|---|
| 1–3 | EMFA/B/C | BEMF sensing inputs |
| 2 | VR | 0–5 V speed control |
| 5 | VDD | Power supply (5 V) |
| 6 | IS | Current sense input |
| 8 | TC | Temperature detection |
| 9 | QD | Start torque adjustment (0–2.5 V) |
| 10–15 | UH–WL | 3-phase bridge outputs |
| 16 | Z/F | Forward/Reverse control |
| 17 | M | Speed pulse output |
| 18 | EMF | BEMF common reference |
| 4 | GND | Ground |