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
PCA9551D,118
使用寿命终止
12NC: 935271695118
详细信息
数量
单价
| 1 - 24 | $1.31 |
| 25 - 99 | $1.31 |
| 100+ | $1.31 |
订购
现货:2,430
从分销商处购买工作特点
| 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) | 0.17 to 44 |
# 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） |
|---|---|---|---|---|---|---|
PCA9551D,118(935271695118) | 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 | |||||
PCA9551D,118 (935271695118) | 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 |
|---|---|
PCA9551D,118 (935271695118) | 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 |
|---|---|---|---|---|
PCA9551D,118 (935271695118) | NOTICE | 2025-09-16 | 2026-03-16 | PCA9551PW,118 (935271692118) |
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 |
|---|---|---|---|---|
PCA9551D,118 (935271695118) | 2024-12-16 | 2024-12-17 | 202409029DN | Discontinuation Notification Due to Low Volume for Numerous HPA Products |
更多信息 PCA9551
The PCA9551 LED blinker blinks LEDs in I²C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I²C-bus controller'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 controller 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 controller's timers. The PCA9551 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) for each individual output. From then on, only one command from the bus controller is required to turn each individual open-drain output on, off, or to cycle at BLINK RATE 1 or BLINK RATE 2. Maximum output sinks 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.
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 PCA9551 allow eight devices to operate on the same bus.
The newer Fast-mode Plus PCA9634 8-bit LED controller offers an individual PWM dimming control for each channel for better color mixing capabilities with a global PWM for dimming or blinking all channels at the same time. There are 126 possible address combinations and the maximum output sink current is 25 mA per bit and 200 mA per package.