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NXP  PCA9551D,118  Driver de LED, 8 Sorties, 2.3V-5.5V in, Découpage 400kHz, 100mA out, SOIC-16

NXP PCA9551D,118
Technical Data Sheet (155.66KB) EN Découvrez tous les documents techniques

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Aperçu du produit

The PCA9551D,118 is a 8-bit I²C-bus LED Driver with programmable blink rates. The LED blinker blinks LEDs in I²C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I²C-bus masters (MCU, MPU, DSP, chip set) 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 I²C-bus and uses up one of the masters 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 master is required to turn each individual open-drain output on, off or to cycle at blink rate 1 or blink rate 2.
  • 8 LED drivers (ON, OFF, flashing at a programmable rate)
  • Input/outputs not used as LED drivers can be used as regular GPIOs
  • Internal oscillator requires no external components
  • I²C-bus Interface logic compatible with SMBus
  • Internal power-ON reset
  • Noise filter on SCL/SDA input
  • Active low reset input
  • 8 Open-drain outputs directly drive LEDs to 25mA
  • Edge rate control on outputs
  • No glitch on power-up
  • Supports hot insertion
  • Low standby current consumption
  • Latch-up testing is done to JEDEC standard JESD78 which exceeds 100mA
  • 0Hz to 400kHz Clock frequency

Informations produit

Topologie Périphérique:
-
Nombre de canaux de sortie:
8Sortie(s)
Courant, sortie:
100mA
Tension, sortie:
-
Type de boîtier CI Driver:
SOIC
Nombre de broches:
16Broche(s)
Tension, entrée min.:
2.3V
Tension, entrée max..:
5.5V
Fréquence de commutation:
400kHz
Température d'utilisation min:
-40°C
Température de fonctionnement max..:
85°C
Type de packaging:
Bande découpée
Gamme de produit:
-
Normes Qualification Automobile:
-
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Eclairage LED

Législation et Questions environnementales

Pays d'origine :
Malaysia

Pays dans lequel la dernière étape de production majeure est intervenue

Conforme RoHS :
Oui
N° de tarif :
85423990
Poids (kg) :
.0001