Features
Battery Cell Controller, Advanced, 6 Channels, TPL, LQFP48.
Package
HLQFP48 LQFP64, plastic, low profile quad flat package; 64 terminals; 0.5 mm pitch; 10 mm x 10 mm x 1.4 mm body.
购买选项
PCA9531D,118
正常供应
12NC: 935274731118
详细信息
订购
PCA9531D,112
停产
12NC: 935274731112
详细信息
订购
工作特点
| 参数 | 值 |
|---|---|
Number of Channels | 8 |
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 | 值 |
|---|---|
Blinking Rate (Min to Max) (Hz) | 0.59 to 152 |
# of Addresses | 8 |
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） |
|---|---|---|---|---|---|---|
PCA9531D,112(935274731112) | Yes | Yes | No |  | REACH SVHC | 144.0 |
PCA9531D,118(935274731118) | Yes | Yes Certificate Of Analysis (CoA) | No | | REACH SVHC | 144.0 |
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 | MTBF | IR | ||
|---|---|---|---|---|---|---|---|---|
| 铅焊接 | 无铅焊接 | 铅焊接 | 无铅焊接 | |||||
PCA9531D,112 (935274731112) | No | 1 | 1 | 240 | 260 | 2.0 | 5.0E8 | 0.0 |
PCA9531D,118 (935274731118) | 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 |
|---|---|
PCA9531D,112 (935274731112) | 854239 |
PCA9531D,118 (935274731118) | 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 |
|---|---|---|---|---|
PCA9531D,112 (935274731112) | NOTICE | 2018-08-31 | 2018-11-30 | PCA9531D,118 (935274731118) |
PCA9531D,118 (935274731118) | - | 2018-01-24 | 2018-07-24 | PCA9531D,112 (935274731112) |
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 |
|---|---|---|---|---|
PCA9531D,112 (935274731112) | 2018-12-19 | 2018-12-20 | 201711018DNU02 | Product Discontinuation Notice - Align SOIC EOL Dates |
更多信息 PCA9531
The PCA9531 is an 8-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 PCA9531 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 active LOW hardware reset pin (RESET) and Power-On Reset (POR) initializes the registers to their default state causing the bits to be set HIGH (LED off).
Three hardware address pins on the PCA9531 allow eight devices to operate on the same bus.