Juc-530-c Guide

(textual description)

MCU PWM_A ──► IN1 (3) → Motor‑A (OUT1, pin 4) MCU PWM_B ──► IN2 (5) → Motor‑B (OUT2, pin 6) juc-530-c

| Variant | Description | |---------|-------------| | JUC‑530‑C | Standard (5 V, 2 A) | | JUC‑530‑C‑A | Automotive‑grade (extended temperature -40 °C to +125 °C) | | JUC‑530‑C‑L | Low‑ESD (±30 kV HBM) version | (textual description) MCU PWM_A ──► IN1 (3) →

SENSE (7) ──► common sense resistor (R_SENSE) → ground The built‑in over‑current protection will shut down the offending channel while the other continues to operate. By feeding a gradually rising voltage (e.g., via an RC ramp) into IN1 and IN2 , the JUC‑530‑C can be used to implement soft‑start for sensitive analog front‑ends. The low R DS(on) ensures minimal voltage drop during the ramp. 6. PCB Layout Recommendations | Recommendation | Reason | |----------------|--------| | Place a 0.1 µF decoupling capacitor within 0.5 mm of the VDD pin. | Reduces supply noise and meets transient current spikes. | | Keep gate‑drive traces (IN1/IN2) as short as possible (< 5 mm) and route them away from high‑frequency switching nodes. | Minimises ringing and EMI. | | Use a low‑value sense resistor (0.1 Ω – 0.33 Ω) and route the SENSE node with a ground‑plane return to avoid voltage offsets. | Accurate over‑current detection. | | Provide thermal vias under the IC if the design expects > 1 W of dissipation (rare for this part). | Improves heat spreading. | | Keep OUT1/OUT2 traces at least 0.2 mm away from high‑current traces that are not switched by the JUC‑530‑C. | Prevents cross‑talk and accidental latch‑up. | 7. Ordering Information | Package | Qty per Reel | Lead‑free? | RoHS | Automotive | |---------|--------------|------------|------|------------| | 8‑Pin TSSOP (4.4 mm × 5.0 mm) | 5 000 | Yes | Yes | Yes (AEC‑Q100) | | | Keep gate‑drive traces (IN1/IN2) as short