PCA9531 | NXP Semiconductors

8-Bit I²C-Bus LED Dimmer

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Product Details

Block Diagram

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PCA9531 Block Diagram

PCA9531 Block Diagram

Block diagram: PCA9531BS, PCA9531D, PCA9531PW

Features

  • Eight LED drivers (on, off, flashing at a programmable rate)
  • Two selectable, fully programmable blink rates (frequency and duty cycle) between 0.59 Hz and 152 Hz (1.69 second and 6.58 milliseconds)
  • 256 brightness steps
  • 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 inputs
  • Active LOW reset input
  • Eight open-drain outputs directly drive LEDs to 25 mA
  • Edge rate control on outputs
  • No glitch on power-up
  • Supports hot insertion
  • Low standby current
  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 0 Hz to 400 kHz clock frequency
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Packages offered: SO16, TSSOP16, HVQFN16

Buy/Parametrics

3 results

Include 0 NRND

Order

CAD Model

Status

Number of Channels

Output Current on pin LEDn (Max) (mA)

Supply Voltage [Min to Max] (V)

Serial Communication

Topology

Blinking Rate (Min to Max) (Hz)

# of Addresses

Operating Temperature (Min-Max) (℃)

AEC-Q100 compliant

Package Type

Package Dimensions (LxWxZ (mm))

Budgetary Price excluding tax

Active

8

25

2.3 to 5.5

1 x I²C

Voltage switch

0.59 to 152

8

-40 to 85

N

HVQFN16

1K @ US$0.82

Active

8

25

2.3 to 5.5

1 x I²C

Voltage switch

0.59 to 152

8

-40 to 85

N

SO16

9.9 x 3.9 x 1.35

1K @ US$0.82

Active

8

25

2.3 to 5.5

1 x I²C

Voltage switch

0.59 to 152

8

-40 to 85

N

TSSOP16

5 x 4.4 x 0.9

1K @ US$0.82

Documentation

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Compact List

Application Note (7)
Brochure (4)
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Design Files

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3 design files

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