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.
Features
8-bit 25 mA Voltage switch LED Driver with 400kHz I2C interface in TSSOP16 package.
Package
TSSOP16: plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch, 5 mm x 4.4 mm x 1.1 mm body
Buy Options
PCA9551PW,118
Active
12NC: 935271692118
Details
Quantity
Unit Pricing
| 1 - 24 | $1.01 |
| 25 - 99 | $1.01 |
| 100+ | $1.01 |
Order
In Stock:2,100
Order from distributorsPCA9551PW,112
No Longer Manufactured
12NC: 935271692112
Details
Order
PCA9551PW/G,118
No Longer Manufactured
12NC: 935276418118
Details
Order
Operating Features
| Parameter | Value |
|---|---|
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 |
| Parameter | Value |
|---|---|
Blinking Rate (Min to Max) (Hz) | 0.17 to 44 |
# of Addresses | 8 |
Operating Temperature (Min-Max) (℃) | -40 to 85 |
AEC-Q100 compliant | N |
Environmental
| Part/12NC | PbFree | EU RoHS | Halogen Free | RHF Indicator | REACH SVHC | Weight (mg) |
|---|---|---|---|---|---|---|
PCA9551PW,112(935271692112) | Yes | Yes | Yes |  | REACH SVHC | 54.0 |
PCA9551PW,118(935271692118) | Yes | Yes Certificate Of Analysis (CoA) | Yes | | REACH SVHC | 54.0 |
PCA9551PW/G,118(935276418118) | Yes | Yes | Yes | | REACH SVHC | 52.41 |
Quality
| Part/12NC | Safe Assure Functional Safety | Moisture Sensitivity Level (MSL) | Peak Package Body Temperature (PPT) (C°) | FIT | MTBF | IR | ||
|---|---|---|---|---|---|---|---|---|
| Lead Soldering | Lead Free Soldering | Lead Soldering | Lead Free Soldering | |||||
PCA9551PW,112 (935271692112) | No | 1 | 1 | 240 | 260 | 2.0 | 5.0E8 | 0.0 |
PCA9551PW,118 (935271692118) | No | 1 | 1 | 240 | 260 | 2.0 | 5.0E8 | 0.0 |
PCA9551PW/G,118 (935276418118) | - | 1 | 1 | 240 | 260 | 2.0 | 5.0E8 | 0.0 |
Shipping
| Part/12NC | Harmonized Tariff (US)Disclaimer |
|---|---|
PCA9551PW,112 (935271692112) | 854239 |
PCA9551PW,118 (935271692118) | 854239 |
PCA9551PW/G,118 (935276418118) | 854239 |
Discontinued and Replacement Part Data
| Part/12NC | Discontinuance Notice | Last Time Buy Date | Last Time Delivery Date | Replacement |
|---|---|---|---|---|
PCA9551PW,112 (935271692112) | - | 2018-01-24 | 2018-07-24 | PCA9551PW,118 (935271692118) |
PCA9551PW/G,118 (935276418118) | - | 2001-01-30 | 2001-01-31 | PCA9551PW,118 (935271692118) |
More about 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.