| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,000 pcs
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2000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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The PCA9551BS,118 is an 8-bit I2C-bus LED driver designed for applications requiring controlled blinking of LEDs without constant master intervention. This device features an internal oscillator with two programmable blink rates, allowing for frequencies between 0.148 Hz and 38 Hz. It can operate with a supply voltage ranging from 2.3V to 5.5V and supports I2C-bus and SMBus interfaces.
Each of the 8 open-drain outputs can directly drive LEDs up to 25mA, with a maximum package sink current of 100mA. Outputs not used for LED blinking can function as general-purpose parallel I/O (GPIO). The device includes an active LOW hardware reset pin and Power-On Reset (POR) for initialization.
Packaged in a 16-HVQFN (4x4) with a surface mount type, the PCA9551BS,118 operates within an ambient temperature range of -40°C to 85°C. It supports clock frequencies up to 400 kHz and is suitable for applications where bus traffic needs to be limited or master MCU timers need to be freed up.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9551BS,118 operates from 2.3V to 5.5V.
The operating temperature range is -40°C to 85°C.
The maximum output sink current is 25mA per bit.
The PCA9551BS,118 has 8 LED drivers.
PWM dimming is supported.
The programmable blink rates are between 0.148 Hz and 38 Hz.
The package type is 16-HVQFN (4x4) and it is surface mountable.