| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,500 pcs
|
2500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Applications | |
| Current | |
| Dimming | |
| ESD Protection | |
| Frequency | |
| Internal Switch(s) | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Supplier Device Package | |
| Supplier Package | |
| Type | |
| Voltage |
The PCA9533DP/02,118 from NXP Semiconductors is a 4-bit I2C-bus and SMBus I/O expander specifically optimized for dimming LEDs. It provides 256 discrete steps for precise control in RGB color mixing and backlight applications.
This device features an internal oscillator with programmable blink rates and duty cycles, allowing for LED brightness control by adjusting the on-time. The initial setup programs two blink rates, and subsequent commands from the bus master can turn individual LEDs ON, OFF, or set them to BLINK RATE 1 or BLINK RATE 2. The open-drain outputs can directly drive LEDs with a maximum sink current of 25 mA per bit and 100 mA per package.
Unused I/O pins can function as general-purpose GPIOs, offering flexibility for additional control needs. The PCA9533DP/02,118 operates over a voltage range of 2.3 V to 5.5 V and supports clock frequencies up to 400 kHz. It is housed in an 8-TSSOP package suitable for surface mounting.
Key features include 256 brightness steps, programmable blink rates, an internal power-on reset, and noise filters on SCL/SDA inputs. ESD protection exceeds 2000 V HBM, and latch-up testing is performed to JEDEC Standard JESD78.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 2.3 V to 5.5 V.
The package type is 8-TSSOP, 8-MSOP (0.118", 3.00mm Width).
The operating temperature range is -40°C to 85°C (TA).
The maximum output sink current is 25 mA per bit.
It supports I2C-bus and SMBus protocols.
It has 4 LED drivers.
Yes, it features internal switches.