| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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10,000 pcs
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10000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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| Dimming | |
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The PCA9531PW,118 from NXP Semiconductors is an 8-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs. It provides 256 discrete brightness steps, making it ideal for Red/Green/Blue (RGB) color mixing and backlight applications.
Key features include two user-programmable blink rates and duty cycles, an internal oscillator requiring no external components, and noise filtering on SCL/SDA inputs. The device supports a supply voltage range of 2.3 V to 5.5 V and offers an output sink current of 25 mA per bit, with a total of 100 mA per package. Outputs are open-drain and directly drive LEDs.
Any I/O bits not used for LED driving can function as General Purpose Parallel Input/Output (GPIO) expansion. The PCA9531PW,118 is available in a 16-TSSOP package and is designed for surface mounting. It operates within a temperature range of -40°C to 85°C.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9531PW,118 is an 8-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in 256 discrete steps.
It features two programmable blink rates, 256 brightness steps, and an internal oscillator requiring no external components.
The operating power supply voltage range is 2.3 V to 5.5 V.
The open-drain outputs directly drive the LEDs with a maximum output sink current of 25 mA per bit and 100 mA per package.
The PCA9531PW,118 is available in a 16-TSSOP package.
The operating temperature range is -40°C to 85°C (TA).