PCU9656B Product Information|NXP

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PCU9656B,118

No Longer Manufactured

12NC: 935296427118

Details

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Operating Features

ParameterValue
Number of pins
48
Package Style
LQFP
Peripheral Type
I²C, PWM
eTSEC
3
TDM
3
I2C
1
J1850
3
SLIC
3
Security Status
COMPANY PUBLIC
Reset input pin
N
Automotive
N
Description
I2C 40 V Voltage Source LED Controller
ILED/channel maximum (mA)
100
Supply Voltage [Min - Max]
2.3, 5.5
Number of bits
24
AEC-Q100 compliant
N
AEC-Q100 compliant
N
VLED maximum (V)
40
Operating Voltage [Min to Max] (V)
2.3 to 5.5
ParameterValue
PWM
1
Supply Voltage [max] (V)
5.5
Ambient Operating Temperature (Min to Max) (℃)
-40 to 85
I2C-Bus (kHz)
5000
Supply Voltage [min] (V)
2.3
# of Addresses
126
Automotive Qualified
N
Interface
I2C-Bus Ultra Fast Mode
Peripherals
I²C, PWM
PWM
25 (16 x 97 kHz dim and 1 x 97 kHz dim or 24 Hz to 10.73 sec blink)
Pad supply (V)
2.3 to 5.5
Supply Voltage [Min to Max] (V)
2.3 to 5.5
Peripheral Type
I²C, PWM
Communication protocol
I²C, PWM
Operating Temperature (Min-Max) (℃)
-40 to 85
Serial Communication
1 x I²C
Master Interface
I²C, PWM
Controller Interface
I²C, PWM

Environmental

Part/12NCPbFreeEU RoHSHalogen FreeRHF IndicatorREACH SVHCWeight (mg)
PCU9656B,118(935296427118)
Yes
Yes
Yes
DREACH SVHC
193.033132

Quality

Part/12NCSafe Assure Functional SafetyMoisture Sensitivity Level (MSL)Peak Package Body Temperature (PPT) (C°)FITMTBFIR
Lead SolderingLead Free SolderingLead SolderingLead Free Soldering
PCU9656B,118
(935296427118)
No
1
1
240
260
5.0
2.0E8
0.0

Shipping

Part/12NCHarmonized Tariff (US)Disclaimer
PCU9656B,118
(935296427118)
854239

Discontinued and Replacement Part Data

Part/12NCDiscontinuance NoticeLast Time Buy DateLast Time Delivery DateReplacement
PCU9656B,118
(935296427118)
NOTICE
2022-08-25
2022-11-24
-

Product Change Notice

Part/12NCIssue DateEffective DatePCNTitle
PCU9656B,118
(935296427118)
2021-11-232021-11-24202111024DN40V LED Controller in QFN package discontinuation

More about PCU9656B

The PCU9656 is a UFm I²C-bus controlled 24-bit LED driver optimized for voltage switch dimming and blinking 100 mA Red/Green/Blue/Amber (RGBA) LEDs. Each LEDn output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at 97 kHz (typical) 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 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 LEDn 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 PCU9656 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 for the LED supply.

The PCU9656 is one of the first LED controller devices in a new Ultra Fast-mode (UFm) family. UFm devices offer higher frequency (up to 5 MHz).

The active LOW Output Enable input pin (OE) blinks all the LEDs 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 PCU9656 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. Six hardware address pins allow up to 64 devices on the same bus.

The Software Reset (SWRST) Call allows the controller to perform a reset of the PCU9656 through the I²C-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.

A new feature to control LEDn output pattern is incorporated in the PCU9656. A new control byte called ‘Chase Byte’ allows enabling or disabling of selective LEDn outputs depending on the value of the Chase Byte. This feature greatly reduces the number of bytes to be sent to the PCU9656 when repetitive patterns need to be displayed as in creating a marquee chasing effect.