Overview
The PCA9952TW/Q900,118 is a 16-channel constant current LED driver produced by NXP USA Inc. This device is part of the PCA9952 series and is optimized for dimming and blinking applications. It features an I2C-bus interface with Fast-mode Plus (Fm+) capability, allowing for higher frequency and more densely populated bus operations. The PCA9952TW/Q900,118 is designed for use in various lighting applications, including backlighting, status indicators, and automotive lighting.
Key Specifications
| Attribute | Value |
|---|---|
| Supply Voltage | 3 V to 5.5 V |
| Output Voltage | Up to 40 V |
| Switching Frequency - Max | 8 MHz |
| Package Style | HTSSOP-28 |
| Mounting Method | Surface Mount |
| Number of Outputs | 16 |
| Output Current per Channel | 57 mA (adjustable with 8-bit linear DAC from 225 μA to 57 mA) |
| Operating Temperature | -40°C to +85°C |
| ESD Protection | Exceeds 2000 V HBM per JESD22-A114, and 500 V CDM per JESD22-C101 |
Key Features
- I2C-bus interface with Fast-mode Plus (Fm+) capability, supporting frequencies up to 1 MHz and bus capacitance up to 4000 pF.
- 16 constant current sink LED driver channels with adjustable output current from 225 μA to 57 mA using an 8-bit linear DAC.
- Built-in open, short load, and overtemperature detection circuitry with error information readable via the I2C-bus.
- Thermal shutdown feature to protect the device from excessive internal junction temperature.
- Output enable pin (OE) for controlling the LED outputs.
- AEC-Q100 compliant, making it suitable for automotive applications.
Applications
- Backlighting for LCD displays.
- RGB or RGBA LED drivers.
- LED status indicators.
- Keypad backlights for cellular phones or handheld devices.
- Automotive lighting.
- Amusement products.
Q & A
- What is the supply voltage range of the PCA9952TW/Q900,118?
The supply voltage range is from 3 V to 5.5 V.
- How many output channels does the PCA9952TW/Q900,118 have?
The device has 16 output channels.
- What is the maximum output voltage for the LED supply?
The maximum output voltage for the LED supply is up to 40 V.
- What is the adjustable range of the output current per channel?
The output current per channel is adjustable from 225 μA to 57 mA using an 8-bit linear DAC.
- Does the PCA9952TW/Q900,118 have built-in protection features?
Yes, it has built-in open, short load, and overtemperature detection circuitry, as well as thermal shutdown protection.
- What is the operating temperature range of the PCA9952TW/Q900,118?
The operating temperature range is from -40°C to +85°C.
- Is the PCA9952TW/Q900,118 AEC-Q100 compliant?
Yes, it is AEC-Q100 compliant, making it suitable for automotive applications.
- What type of I2C-bus interface does the PCA9952TW/Q900,118 support?
The device supports a Fast-mode Plus (Fm+) I2C-bus interface.
- What is the package style of the PCA9952TW/Q900,118?
The package style is HTSSOP-28.
- What is the mounting method for the PCA9952TW/Q900,118?
The mounting method is Surface Mount.
