Datasheet > PCA9552BS,118

PCA9552BS,118

更新时间： 2024-01-02 15:32:47

品牌	Logo	应用领域
恩智浦 - NXP		PC 驱动接口集成电路
页数	文件大小	规格书
28页	159K
描述
PCA9552 - 16-bit I2C-bus LED driver with programmable blink rates QFN 24-Pin

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PCA9552BS,118 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	QFN	包装说明：	HVQCCN,
针数：	24	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	0.8
Samacsys Confidence：	3	Samacsys Status：	Released
2D Presentation：	https://componentsearchengine.com/2D/0T/1130158.1.1.png	Schematic Symbol：	https://componentsearchengine.com/symbol.php?partID=1130158
PCB Footprint：	https://componentsearchengine.com/footprint.php?partID=1130158	3D View：	https://componentsearchengine.com/viewer/3D.php?partID=1130158
Samacsys PartID：	1130158	Samacsys Image：	https://componentsearchengine.com/Images/9/PCA9552BS,118.jpg
Samacsys Thumbnail Image：	https://componentsearchengine.com/Thumbnails/1/PCA9552BS,118.jpg	Samacsys Pin Count：	25
Samacsys Part Category：	Integrated Circuit	Samacsys Package Category：	Quad Flat No-Lead
Samacsys Footprint Name：	hvqfn25	Samacsys Released Date：	2019-11-01 04:19:35
Is Samacsys：	N	数据输入模式：	SERIAL
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	S-PQCC-N24
JESD-609代码：	e4	长度：	4 mm
湿度敏感等级：	1	复用显示功能：	NO
功能数量：	1	区段数：	16
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1 mm
最大供电电压：	5.5 V	最小供电电压：	2.3 V
标称供电电压：	3.3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	NICKEL PALLADIUM GOLD
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	30
宽度：	4 mm	最小 fmax：	0.4 MHz
Base Number Matches：	1

PCA9552BS,118 数据手册

PCA9552

16-bit I²C-bus LED driver with programmable blink rates

Rev. 05 — 9 March 2006

Product data sheet

1. General description

The PCA9552 LED blinker blinks LEDs in I²C-bus and SMBus applications where it is

necessary to limit bus trafﬁc or free up the I²C-bus 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

PCA9552 LED blinker instead requires only the initial setup command to program

BLINK RATE 1 and BLINK RATE 2 (that is, the frequency and duty cycle) for each

individual output. 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 200 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).

Three hardware address pins on the PCA9552 allow eight devices to operate on the same

bus.

2. Features

■ 16 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 seconds)

■ Input/outputs 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

■ 16 open-drain outputs directly drive LEDs to 25 mA

■ Edge rate control on outputs

■ 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 Hz to 400 kHz clock frequency

12 3 4 5 6 7...28

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