900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




NXP Semiconductors Electronic Components Datasheet

PCA9625D Datasheet

16-bit Fm I2C-bus 100 mA 24V LED driver

No Preview Available !

PCA9625
16-bit Fm+ I2C-bus 100 mA 24 V LED driver
Rev. 02 — 15 January 2008
Product data sheet
1. General description
The PCA9625 is an I2C-bus controlled 16-bit LED driver optimized for voltage switch
dimming and blinking 100 mA Red/Green/Blue/Amber (RGBA) LEDs. Each LED output
has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that
operates at 97 kHz with a duty cycle that is adjustable from 0 % to 99.6 % to allow the
LED to be set to a specific brightness value. An additional 8-bit resolution (256 steps)
group PWM controller has both a fixed frequency of 190 Hz and an adjustable frequency
between 24 Hz to once every 10.73 seconds with a duty cycle that is adjustable from 0 %
to 99.6 % that is used to either dim or blink all LEDs with the same value.
Each LED output can be off, on (no PWM control), set at its individual PWM controller
value or at both individual and group PWM controller values. The PCA9625 operates with
a supply voltage range of 2.3 V to 5.5 V and the 100 mA open-drain outputs allow
voltages up to 24 V.
The PCA9625 is one of the first LED controller devices in a new Fast-mode Plus (Fm+)
family. Fm+ devices offer higher frequency (up to 1 MHz) and more densely populated bus
operation (up to 4000 pF).
The active LOW Output Enable input pin (OE) blinks all the LED outputs and can be used
to externally PWM the outputs, which is useful when multiple devices need to be dimmed
or blinked together without using software control.
Software programmable LED Group and three Sub Call I2C-bus addresses allow all or
defined groups of PCA9625 devices to respond to a common I2C-bus address, allowing
for example, all red LEDs to be turned on or off at the same time or marquee chasing
effect, thus minimizing I2C-bus commands. Seven hardware address pins allow up to
126 devices on the same bus.
The Software Reset (SWRST) Call allows the master to perform a reset of the PCA9625
through the I2C-bus, identical to the Power-On Reset (POR) that initializes the registers to
their default state causing the outputs to be set HIGH (LED off). This allows an easy and
quick way to reconfigure all device registers to the same condition.
The PCA9625 and PCA9635 software is identical and if the PCA9625 on-chip 100 mA
NAND FETs do not provide enough current or voltage to drive the LEDs, then the
PCA9635 with larger current or higher voltage external drivers can be used.


NXP Semiconductors Electronic Components Datasheet

PCA9625D Datasheet

16-bit Fm I2C-bus 100 mA 24V LED driver

No Preview Available !

NXP Semiconductors
PCA9625
16-bit Fm+ I2C-bus 100 mA 24 V LED driver
2. Features
I 16 LED drivers. Each output programmable at:
N Off
N On
N Programmable LED brightness
N Programmable group dimming/blinking mixed with individual LED brightness
I 1 MHz Fast-mode Plus compatible I2C-bus interface with 30 mA high drive capability
on SDA output for driving high capacitive buses
I 256-step (8-bit) linear programmable brightness per LED output varying from fully off
(default) to maximum brightness using a 97 kHz PWM signal
I 256-step group brightness control allows general dimming (using a 190 Hz PWM
signal) from fully off to maximum brightness (default)
I 256-step group blinking with frequency programmable from 24 Hz to 10.73 s and duty
cycle from 0 % to 99.6 %
I Sixteen open-drain outputs can sink between 0 mA to 100 mA and are tolerant to a
maximum off state voltage of 24 V. No input function.
I Output state change programmable on the Acknowledge or the STOP Command to
update outputs byte-by-byte or all at the same time (default to ‘Change on STOP’).
I Active LOW Output Enable (OE) input pin allows for hardware blinking and dimming of
the LEDs
I 7 hardware address pins allow 126 PCA9625 devices to be connected to the same
I2C-bus and to be individually programmed
I 4 software programmable I2C-bus addresses (one LED Group Call address and three
LED Sub Call addresses) allow groups of devices to be addressed at the same time in
any combination (for example, one register used for ‘All Call’ so that all the PCA9625s
on the I2C-bus can be addressed at the same time and the second register used for
three different addresses so that 13 of all devices on the bus can be addressed at the
same time in a group). Software enable and disable for I2C-bus address.
I Software Reset feature (SWRST Call) allows the device to be reset through the
I2C-bus
I 25 MHz internal oscillator requires no external components
I Internal power-on reset
I Noise filter on SDA/SCL inputs
I No glitch on power-up
I Supports hot insertion
I Low standby current
I Operating power supply voltage (VDD) range of 2.3 V to 5.5 V; also requires
VDD(DRV)FET supply voltage range of 10 V to 24 V
I 5.5 V tolerant inputs on non-LED pins
I 40 °C to +85 °C operation
I ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per
JESD22-A115 and 1000 V CDM per JESD22-C101
I Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
I Package offered: SO32
PCA9625_2
Product data sheet
Rev. 02 — 15 January 2008
© NXP B.V. 2008. All rights reserved.
2 of 33


Part Number PCA9625D
Description 16-bit Fm I2C-bus 100 mA 24V LED driver
Maker NXP
PDF Download

PCA9625D Datasheet PDF






Similar Datasheet

1 PCA9625 16-bit Fm I2C-bus 100 mA 24V LED driver
NXP Semiconductors
2 PCA9625D 16-bit Fm I2C-bus 100 mA 24V LED driver
NXP





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy