9551 查看數據表（PDF） - NXP Semiconductors.

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9551

8-bit I2C-bus LED driver with programmable blink rates

NXP Semiconductors. 

NXP Semiconductors

PCA9551

8-bit I2C-bus LED driver with programmable blink rates

I No glitch on power-up

I Supports hot insertion

I Low standby current

I Operating power supply voltage range of 2.3 V to 5.5 V

I 0 Hz to 400 kHz clock frequency

I ESD protection exceeds 2000 V HBM per JESD22-A114, 150 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 Packages offered: SO16, TSSOP16, HVQFN16

3. Ordering information

Table 1. Ordering information

Tamb = −40 °C to +85 °C.

Type number Topside

mark

Package

Name

PCA9551D

PCA9551D SO16

PCA9551PW PCA9551 TSSOP16

PCA9551BS 9551

HVQFN16

Description

plastic small outline package; 16 leads; body width 3.9 mm

plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

plastic thermal enhanced very thin quad flat package;

no leads; 16 terminals; body 4 × 4 × 0.85 mm

4. Block diagram

Version

SOT109-1

SOT403-1

SOT629-1

PCA9551

A0 A1 A2

SCL

SDA

INPUT

FILTERS

I2C-BUS

CONTROL

VDD

RESET

VSS

POWER-ON

RESET

OSCILLATOR

Only one I/O shown for clarity.

Fig 1. Block diagram of PCA9551

PRESCALER 0

REGISTER

PRESCALER 1

REGISTER

INPUT

REGISTER

LED SELECT (LSn)

REGISTER

0

1

PWM0

REGISTER

PWM1

REGISTER

BLINK0

BLINK1

LEDn

002aac504

PCA9551_8

Product data sheet

Rev. 08 — 31 July 2008

© NXP B.V. 2008. All rights reserved.

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