PCA9533DP 产品信息|NXP

特点


4-bit 25 mA Voltage switch LED Driver with 400kHz I2C interface in TSSOP8 package.

封装


TSSOP8: plastic, thin shrink small outline package; 8 leads; 0.65 mm pitch; 3 mm x 3 mm x 1.1 mm body

购买选项

工作特点

参数
Number of Channels
4
Output Current on pin LEDn (Max) (mA)
25
Supply Voltage [Min to Max] (V)
2.3 to 5.5
Serial Communication
1 x I²C
Topology
Voltage switch
参数
Blinking Rate (Min to Max) (Hz)
0.59 to 152
# of Addresses
2
Operating Temperature (Min-Max) (℃)
-40 to 85
AEC-Q100 compliant
N

环境

部件/12NC无铅欧盟 RoHS无卤素RHF指标REACH SVHC重量(mg)
PCA9533DP/01,118(935274435118)
Yes
Yes
Certificate Of Analysis (CoA)
Yes
DREACH SVHC
24.0
PCA9533DP/02,118(935274437118)
Yes
Yes
Certificate Of Analysis (CoA)
Yes
DREACH SVHC
24.0

质量

部件/12NC安全保障功能安全湿度灵敏度等级(MSL)封装体峰值温度(PPT)(C°)适合MTBFIR
铅焊接无铅焊接铅焊接无铅焊接
PCA9533DP/01,118
(935274435118)
No
1
1
240
260
2.0
5.0E8
0.0
PCA9533DP/02,118
(935274437118)
No
1
1
240
260
2.0
5.0E8
0.0

配送

部件/12NC协调关税 (美国)免责声明
PCA9533DP/01,118
(935274435118)
854239
PCA9533DP/02,118
(935274437118)
854239

停产和更换部件数据

部件/12NC停产通知上次购买日期上次发货日期替代器件
PCA9533DP/02,118
(935274437118)
NOTICE
2025-09-16
2026-03-16
PCA9633TK,118
(935281618118)

产品变更通知

部件/12NC发行日期生效日期产品更改通知标题
PCA9533DP/02,118
(935274437118)
2024-12-162024-12-17202409029DNDiscontinuation Notification Due to Low Volume for Numerous HPA Products

更多信息 PCA9533

The PCA9533 is a 4-bit I²C-bus and SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and backlight applications.

The PCA9533 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM. The LED brightness is controlled by setting the blink rate high enough (> 100 Hz) that the blinking cannot be seen and then using the duty cycle to vary the amount of time the LED is on and thus the average current through the LED.

The initial setup sequence programs the two blink rates/duty cycles for each individual PWM. From then on, only one command from the bus controller is required to turn individual LEDs ON, OFF, BLINK RATE 1 or BLINK RATE 2. Based on the programmed frequency and duty cycle, BLINK RATE 1 and BLINK RATE 2 will cause the LEDs to appear at a different brightness or blink at periods up to 1.69 seconds. The open-drain outputs directly drive the LEDs with maximum output sink current of 25 mA per bit and 100 mA per package.

To blink LEDs at periods greater than 1.69 second the bus controller (MCU, MPU, DSP, chipset, etc.) must send repeated commands to turn the LED on and off as is currently done when using normal I/O expanders like the NXP Semiconductors PCF8574 or PCA9554. Any bits not used for controlling the LEDs can be used for General Purpose parallel Input/Output (GPIO) expansion, which provides a simple solution when additional I/O is needed for ACPI power switches, sensors, push-buttons, alarm monitoring, fans, etc.

The Power-On Reset (POR) initializes the registers to their default state, causing the bits to be set HIGH (LED off).

Due to pin limitations, the PCA9533 is not featured with hardware address pins. The PCA9533/01 and the PCA9533/02 have different fixed I²C-bus addresses allowing operation of both on the same bus.

更多