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参数资料
| 型号： | PCA9553DP02 |
| 厂商： | NXP Semiconductors N.V. |
| 元件分类： | LED驱动器 |
| 英文描述： | 4-bit I2C LED driver with programmable blink rates |
| 中文描述： | 4位I2C LED与可编程闪烁率司机 |
| 文件页数： | 2/18页 |
| 文件大小： | 130K |
| 代理商： | PCA9553DP02 |
Philips Semiconductors
Product data sheet
PCA9553
4-bit I
2
C LED driver with
programmable blink rates
2
2004 Oct 01
FEATURES
4 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 and 0.023 seconds)
Input/outputs not used as LED drivers can be used as regular
GPIOs
Internal oscillator requires no external components
I
2
C-businterface logic compatible with SMBus
Internal power-on reset
Noise filter on SCL/SDA inputs
4 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 stand-by current
Operating power supply voltage range of 2.3 V to 5.5 V
0 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)
DESCRIPTION
The PCA9553 LED Blinker blinks LEDs in I
2
C and SMBus
applications where it is necessary to limit bus traffic or free up the
I
2
C Master’s (MCU, MPU, DSP, chipset, 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 I
2
C-bus and uses up one of the master’s timers. The PCA9553
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 100 mA per package.
Any bits not used for controlling the LEDs can be used for General
Purpose Parallel Input/Output (GPIO) expansion.
Power-On Reset (POR) initializes the registers to their default state,
all zeroes, causing the bits to be set HIGH (LED off).
Due to pin limitations, the PCA9553 is not featured with hardware
address pins. The PCA9553/01 and the PCA9553/02 have different
fixed I
2
C-bus addresses allowing operation of both on the same bus.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
LED0
LED1
LED2
V
SS
V
DD
SDA
SCL
LED3
SW01035
Figure 1. Pin configuration
PIN DESCRIPTION
PIN
NUMBER
1
SYMBOL
FUNCTION
LED0
LED driver 0
2
LED1
LED driver 1
3
LED2
LED driver 2
4
V
SS
LED3
Supply ground
5
LED driver 3
6
SCL
Serial clock line
7
SDA
Serial data line
8
V
DD
Supply voltage
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
ORDER CODE
TOPSIDE MARK
DRAWING NUMBER
8-Pin Plastic SO
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
PCA9553D/01
P9553/1
SOT96-1
8-Pin Plastic SO
PCA9553D/02
P9553/2
SOT96-1
8-Pin Plastic TSSOP (MSOP)
PCA9553DP/01
P53/1
SOT505-1
8-Pin Plastic TSSOP (MSOP)
Standard packing quantities and other packaging data are available at www.standardproducts.philips.com/packaging.
I
2
C is a trademark of Philips Semiconductors Corporation.
PCA9553DP/02
P53/2
SOT505-1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9553TK | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C-bus LED driver with programmable blink rates |
| PCA9553TK,118 | 功能描述:LED照明驱动器 4BIT I2C FM OD LED RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| PCA9553TK/02 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C-bus LED driver with programmable blink rates |
| PCA9553TK/02,118 | 功能描述:LED照明驱动器 LED DRVR 4Segment 2.5V/3.3V/5V 8-Pin RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| PCA9553TK-T | 功能描述:LED照明驱动器 4BIT I2C FM OD LED BLK RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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