PCA9550DP,118 ,LED Driver, LED Display Driver - NXP

The pictures are for reference only, and the specific specifications can be found in the product manual.

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Part No

PCA9550DP,118
Manufacturer

NXP
ChipWorker Part#

CW28807925
Category

LED Driver, LED Display Driver
Package

TSSOP-8
Description

LED Driver 2.5V/3.3V/5V 8Pin TSSOP T/R
Documentation

Datasheet
Ships from

Moscow
Наличие

50 pcs In Stock
Estimated Price

$ 1.02

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PCA9550DP,118 Specifications

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Attribute	Attribute Value

Part Number	PCA9550DP,118
Manufacturer	NXP
ChipWorker Part#	CW28807925
Category	LED Driver, LED Display Driver
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	TSSOP-8
Frequency	400 kHz
Number of Outputs	2 Output
Supply Current	500 mA
Number of Positions	8 Position
Power Dissipation	400 mW
Output Current (Max)	25 mA
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	400 mW
Supply Voltage	2.3V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	2.3 V
Input Voltage	2.3V ~ 5.5V
	expand all
Size-Length	3.1 mm
Size-Width	3.1 mm
Size-Height	0.95 mm
Operating Temperature	-40℃ ~ 85℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

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Product Description

Overview
The PCA9550 LED blinker blinks LEDs in I²C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I²C master"s (MCU, MPU, DSP, chip set, etc.) timer. The uniqueness of this device is the internal oscillator with two programmable blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the bus master must send repeated commands to turn the LED on and off. This greatly increases the amount of traffic on the I²C-bus and uses up one of the master"s timers. The PCA9550 LED blinker instead requires only the initial set-up command to program BLINK RATE 1 and BLINK RATE 2 (i.e., the frequency and duty cycle). From then on, only one command from the bus master is required to turn each individual open-drain output ON, OFF, or to cycle at BLINK RATE 1 or BLINK RATE 2. Maximum output sink current is 25 mA per bit and 50 mA per package.
Any bits not used for controlling the LEDs can be used for General Purpose parallel Input/Output (GPIO) expansion.
The active LOW hardware reset pin (RESET) and Power-On Reset (POR) initializes the registers to their default state, all zeroes, causing the bits to be set HIGH (LED off).
One hardware address pin on the PCA9550 allows two devices to operate on the same bus.
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## Features
* 2 LED drivers (on, off, flashing at a programmable rate)
* 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.172 Hz and 44 Hz (5.82 seconds and 0.023 second)
* Input/output not used as LED drivers can be used as regular GPIOs
* Internal oscillator requires no external components
* I²C-bus interface logic compatible with SMBus
* Internal power-on reset
* Noise filter on SCL/SDA inputs
* Active LOW reset input
* 2 open-drain outputs directly drive LEDs to 25 mA
* Controlled edge rates to minimize ground bounce
* No glitch on power-up
* Supports hot insertion
* Low standby current
* Operating power supply voltage range of 2.3 V to 5.5 V
* 0 kHz to 400 kHz clock frequency
* ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
* Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
* Packages offered: SO8, TSSOP8 (MSOP8), HVSON8
## Features

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