| Parameter | Symbol | Min | Max | Unit | |-----------|--------|-----|-----|------| | Input Voltage | VIN | -0.3 | 60 | V | | Switch Pin Voltage | VSW | -1 | VIN + 0.3 | V | | Feedback Pin Voltage | VFB | -0.3 | 6 | V | | Enable Pin Voltage | VEN | -0.3 | 60 | V | | Maximum Junction Temperature | TJ | - | 150 | °C | | ESD Rating (HBM) | - | 2 | - | kV |
Pros:
Cons:
The HW133 utilizes a capacitive polymer sensor for humidity detection.
(Derived from standard datasheet parameters for this model series) hw133v10 datasheet
When analyzing a datasheet for any electronic component, such as the HW133V10, several key pieces of information are crucial for ensuring the component is suitable for your project and to understand how to integrate it effectively.
Specifications:
Pinout and Package Information:
Functional Description:
Application Information:
Absolute Maximum Ratings:
Reliability and Environmental Information:
Ordering Information:
| Feature | HW133 (v10) | DHT11 | DHT22 (AM2302) | | :--- | :--- | :--- | :--- | | Temp Range | -20°C ~ +60°C | 0°C ~ +50°C | -40°C ~ +80°C | | Temp Accuracy | ±0.5°C | ±2°C | ±0.5°C | | Humidity Range | 0 ~ 100% RH | 20 ~ 90% RH | 0 ~ 100% RH | | Humidity Accuracy| ±3% RH | ±5% RH | ±2% RH | | Price Point | Very Low | Low | Moderate |
The HW133V10 does not appear in major databases (DigiKey, Mouser, Alldatasheet) under that exact string. Try these steps:
| Symptom | Possible Cause | Solution (from datasheet app notes) | |---------|----------------|--------------------------------------| | No output voltage | EN pin floating (if active low) | Pull EN to VIN through 100k resistor | | Output voltage = VIN | Internal switch shorted | Replace IC; check inductor saturation | | Output ripple >200 mV | Missing COUT or high ESR | Add low-ESR polymer capacitor (47 µF) | | IC shuts down under load | Thermal or current limit | Reduce load, improve heatsinking | | Output voltage drops at high current | Inductor saturation | Replace with rated >3A saturation current |