Driver ASICs
poLight offers two driver ASICs as a TLens® enabling platform, simplifying customer integration, improving performance, and accelerating commercialization. These ASICs are designed to drive capacitive loads including the autofocus actuators. Dedicated driver ASICs enable plug-and-play integration as well as generating precise waveforms while delivering consistent optical performance across devices.
PD50 Driver ASIC
PD50 has a 10-bit DAC and is capable of 50 V output voltage. It 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
- 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-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
PD50LE Driver ASIC
The PD50LE is a low-emission variant of the PD50 driver IC with a slightly lower voltage range. Is has been specifically designed for mobile and wearable applications requiring high integration density, low electromagnetic emissions, and operation with minimal EMI impact on surrounding circuitry.
Application Diagram
