PCA9957HN Product Information|NXP

Features


24-bit 32 mA Constant current LED Driver with 10 MHz SPI interface in HVQFN40 package

Package


HVQFN40: HVQFN40, plastic, thermally enhanced very thin quad flat, non-leaded package; 40 terminals; 0.4 mm pitch; 5 mm x 5 mm x 0.85 mm body

Buy Options

PCA9957HNMP

Active

12NC: 935381763528

Details

Operating Features

ParameterValue
Number of Channels
24
Output Current on pin LEDn (Max) (mA)
32
Supply Voltage [Min to Max] (V)
2.7 to 5.5
Serial Communication
1 x SPI
Topology
Constant current
ParameterValue
Blinking Rate (Min to Max) (Hz)
0.059 to 15
# of Addresses
0
Operating Temperature (Min-Max) (℃)
-40 to 85
AEC-Q100 compliant
N

Environmental

Part/12NCPbFreeEU RoHSHalogen FreeRHF IndicatorREACH SVHCWeight (mg)
PCA9957HNMP(935381763528)
Yes
Yes
Certificate Of Analysis (CoA)
Yes
DREACH SVHC
68.5

Quality

Part/12NCSafe Assure Functional SafetyMoisture Sensitivity Level (MSL)Peak Package Body Temperature (PPT) (C°)
Lead SolderingLead Free SolderingLead SolderingLead Free Soldering
PCA9957HNMP
(935381763528)
No
3
3
240
260

Shipping

Part/12NCHarmonized Tariff (US)Disclaimer
PCA9957HNMP
(935381763528)
854239

Product Change Notice

Part/12NCIssue DateEffective DatePCNTitle
PCA9957HNMP
(935381763528)
2021-12-062022-01-10202110025IPCA9957 and PCA9959 LED Controller Data Sheet Update
PCA9957HNMP
(935381763528)
2020-12-152020-12-16202011011INXP Will Add a Sealed Date to the Product Label

More about PCA9957

The PCA9957 is a daisy-chain SPI-compatible 4-wire serial bus controlled 24-channel constant current LED driver optimized for dimming and blinking 32 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 31.25 kHz with a duty cycle that is adjustable from 0 % to 100 % 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 122 Hz and an adjustable frequency between 15 Hz to once every 16.8 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 PCA9957 operates with a supply voltage range of 2.7 V to 5.5 V and the constant current sink LED outputs allow up to 5 V for the LED supply. The output peak current is adjustable with an 8-bit linear DAC from 125 μA to 31.875 mA with REXT = 2 kΩ.

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