PCA9626B,118 datasheet, PDF - EEWORLD Datasheet

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PCA9626B,118: DescriptionLED lighting driver 24bit Fm+ I2C-bus 100mA 40V LED driver; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size355KB，48 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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PCA9626B,118 Overview

LED lighting driver 24bit Fm+ I2C-bus 100mA 40V LED driver

PCA9626B,118 Parametric

Parameter Name	Attribute value
Brand Name	NXP Semiconductor
Is it Rohs certified?	conform to
Maker	NXP
Parts packaging code	QFP
package instruction	LFQFP,
Contacts	48
Manufacturer packaging code	SOT313-2
Reach Compliance Code	compliant
ECCN code	EAR99
Samacsys Description	24-bit Fm+ I2C-bus 100 mA 40 V LED driver
data entry mode	SERIAL
Interface integrated circuit type	LED DISPLAY DRIVER
JESD-30 code	S-PQFP-G48
JESD-609 code	e3
length	7 mm
Humidity sensitivity level	1
Multiplex display function	NO
Number of functions	1
Number of segments	24
Number of terminals	48
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LFQFP
Package shape	SQUARE
Package form	FLATPACK, LOW PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Maximum seat height	1.6 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	2.3 V
Nominal supply voltage	2.7 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	7 mm
minfmax	1 MHz
Base Number Matches	1

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PCA9626

24-bit Fm+ I

C-bus 100 mA 40 V LED driver

Rev. 5 — 19 June 2014

Product data sheet

1. General description

The PCA9626 is an I

C-bus controlled 24-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 PCA9626 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 40 V.

The PCA9626 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 must be dimmed or

blinked together without using software control.

Software programmable LED Group and three Sub Call I

C-bus addresses allow all or

defined groups of PCA9626 devices to respond to a common I

C-bus address, allowing

for example, all red LEDs to be turned on or off at the same time or marquee chasing

effect, thus minimizing I

C-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 PCA9626

through the I

C-bus, identical to the Power-On Reset (POR) that initializes the registers to

their default state causing the output NAND FETs to be OFF (LED off). This allows an

easy and quick way to reconfigure all device registers to the same condition.

In addition to these features found in PCA9633, PCA9634, PCA9635, PCA9622 and

PCA9624, a new feature to control LED output pattern is incorporated in the PCA9626. A

new control byte called ‘Chase Byte’ allows enabling or disabling of selective LED outputs

depending on the value of the Chase Byte. This feature greatly reduces the number of

bytes to be sent to the PCA9626 when repetitive patterns must be displayed as in creating

a marquee chasing effect.

If the PCA9626 on-chip 100 mA NAND FETs do not provide enough current or voltage to

drive the LEDs, then the PCA9634 and the PCA9635 with larger current or higher voltage

external drivers can be used.

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