Driver ASIC
The PD50 series driver ASIC is designed to drive capacitive loads such as the TLens® autofocus actuators. It has a 10-bit DAC and is capable of 50 V output voltage. The PD50 driver ASIC uses an I2C interface operating at up to 400 KHz. The power-on reset circuit guarantees 0 V output voltage at start-up. It has a power-down feature that reduces current consumption in standby to below 5 uA.
Key Characteristics
- Fully integrated charge pump
- Max output voltage 50 V
- I2C controlled 10-bit DAC
- I2C address 0x18 (Write); 0x19 (Read)
- Fast transition time
- Differential output with selectable polarity
- Power supply alternatives
- 3.3 V (Standard performance)
- 3.5 V (Enhanced performance)
- Low power consumption (6 mW typ at 50 V Vout)
- 6-pin CSP package
- Small footprint (1.33×0.93×0.3 mm)
- Status bit indicating target output voltage reached
Potential Application Areas
- Smartphones
- Wearables including Smart Watches/AR devices
- Tablet PCs
- HD Webcams
- Drones
- Industrial machine vision systems
- Handheld devices
- Barcode scanners
- Medical devices
Application Diagram
Product Image
| Key Specifications | Typical Values |
|---|---|
| Dimension – 6 balls CSP | 1.33 x 0.93 x 0.3 mm |
| Typical max Voltage (@ VDD 3.3 V) | >50 V |
| DAC resolution | 10 bits |
| Output LSB steps | 54 mV |
| Speed (@33 nF load) | 2 to 3.1 mS |
| Power Supply Active Current (<28 V @ VDD 3.3 V) | <2 mA |
For detailed specifications and access to datasheets or quotations, please contact poLight ASA