PCA9552: 16-bit I2C-bus LED driver with programmable blink rates
The PCA9552 LED blinker blinks LEDs in I²C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I²C-bus master's (MCU, MPU, DSP, chip set, etc.) timer. The uniqueness of this device is the internal oscillator with two programmable blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the bus master must send repeated commands to turn the LED on and off. This greatly increases the amount of traffic on the I²C-bus and uses up one of the master's timers. The PCA9552 LED blinker instead requires only the initial setup command to program BLINK RATE 1 and BLINK RATE 2 (that is, the frequency and duty cycle) for each individual output. From then on, only one command from the bus master is required to turn each individual open-drain output on, off, or to cycle at BLINK RATE 1 or BLINK RATE 2. Maximum output sink current is 25 mA per bit and 200 mA per package.
Any bits not used for controlling the LEDs can be used for General Purpose Parallel Input/Output (GPIO) expansion.
The active LOW hardware reset pin (RESET) and Power-On Reset (POR) initializes the registers to their default state, all zeroes, causing the bits to be set HIGH (LED off).
Three hardware address pins on the PCA9552 allow eight devices to operate on the same bus.
PCA9552: Product Block Diagram
Outline 3d SOT137-1
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| 16-bit I2C-bus LED driver with programmable blink rates (REV 5.0) PDF (159.0 kB) PCA9552 | 09 Mar 2006 |
Application Notes (2)
| Name/Description | Modified Date |
|---|---|
| Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 | 20 Jun 2007 |
| I2C Devices for LED Display Control (REV 1.0) PDF (1.0 MB) AN264 | 22 Jul 2002 |
Users Guides (4)
| Name/Description | Modified Date |
|---|---|
| I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 | 28 Apr 2014 |
| I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA | 03 Apr 2013 |
| PCA9633 demonstration board OM6282 (REV 1.0) PDF (337.0 kB) UM10317 | 15 Dec 2008 |
| I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 | 13 Jun 2006 |
Brochures (4)
| Name/Description | Modified Date |
|---|---|
| NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 | 01 Aug 2014 |
| LED controllers: Voltage-switch drivers, constant-current drivers, and Flash LED drivers (REV 1.0) PDF (2.7 MB) 75017588 | 03 Jul 2014 |
| Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 75016543 | 01 Jun 2008 |
| LED blinking with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED blinkers PCA9550/51/52/53 (REV 1.0) PDF (219.0 kB) 75016021 | 01 Jun 2007 |
Package Information (3)
| Name/Description | Modified Date |
|---|---|
| plastic small outline package; 24 leads; body width 7.5 mm (REV 1.0) PDF (379.0 kB) SOT137-1 | 08 Feb 2016 |
| plastic thin shrink small outline package; 24 leads; body width 4.4 mm (REV 1.0) PDF (353.0 kB) SOT355-1 | 08 Feb 2016 |
| plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm (REV 1.0) PDF (202.0 kB) SOT616-1 | 08 Feb 2016 |
Packing (3)
| Name/Description | Modified Date |
|---|---|
| HVQFN24; reel pack; standard product orientation; 12NC ending 118 (REV 1.0) PDF (196.0 kB) SOT616-1_118 | 16 Jan 2014 |
| TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 4.1) PDF (227.0 kB) SOT355-1_118 | 15 Apr 2013 |
| SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 4.0) PDF (235.0 kB) SOT137-1_118 | 12 Apr 2013 |
Reports or Presentations (1)
| Name/Description | Modified Date |
|---|---|
| design_con_2003_tecforum_i2c_b_1 (REV 0.1) PDF (4.2 MB) DESIGN_CON_2003_TECFORUM_I2C_B_1 | 27 Jan 2003 |
Supporting Information (2)
| Name/Description | Modified Date |
|---|---|
| Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE | 08 Oct 2009 |
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE | 08 Oct 2009 |
IBIS Model
- PCA9552 IBIS model (REV 1.0) ibs PCA9552_1 9/2/2014
Ordering Information
| Product | Status | Package version | Operating Temperature (Cel) | PWMs | Reset input pin | I2C-bus (kHz) | Operating voltage (VDC) | Max Sink Current per bit (mA) | No of Addresses | Max Sink Current, per package (mA) | Number of bits |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9552PW | Active | SOT355-1 | -40~85 | 2 (40 Hz to 6.4 sec) | yes | 400 | 2.3~5.5 | 25 | 8 | 200 | 16 |
| PCA9552D | Active | SOT137-1 | -40~85 | 2 (40 Hz to 6.4 sec) | yes | 400 | 2.3~5.5 | 25 | 8 | 200 | 16 |
| PCA9552BS | Active | SOT616-1 | -40~85 | 2 (40 Hz to 6.4 sec) | yes | 400 | 2.3~5.5 | 25 | 8 | 200 | 16 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9552D | | SOT137-1 | SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | PCA9552D,118 (9352 723 95118) | PCA9552D | PCA9552D |    | week 5, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9552D,112 (9352 723 95112) | PCA9552D | PCA9552D | | week 5, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9552PW |  | SOT355-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9552PW,118 (9352 723 94118) | PCA9552 | PCA9552PW |  | week 12, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9552PW,112 (9352 723 94112) | PCA9552 | PCA9552PW | | week 12, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9552BS |  | SOT616-1 | Reel 13" Q1/T1 | Active | PCA9552BS,118 (9352 723 96118) | 9552 | PCA9552BS | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
- Level shifting techniques in I2C-bus design pca9685pw
- I2C Devices for LED Display Control PCA9553
- I2C-bus specification and user manual pca9685pw
- I2C-bus specification and user manual pca9685pw
- PCA9633 demonstration board OM6282 pca9685pw
- I2C Demonstration Board 2005-1 Quick Start Guide pca9685pw
- NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns pca9685pw
- LED controllers: Voltage-switch drivers, constant-current drivers, and Flash LED drivers pca9685pw
- Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... PMEG6010CE_AUTOMOTIVE
- LED blinking with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED blinkers PCA9550/51/52/53 PCA9553
- design_con_2003_tecforum_i2c_b_1 lm75a
- PCA9552 IBIS model PCA9552PW
- plastic small outline package; 24 leads; body width 7.5 mm 74LVC4245A_Q100
- Footprint for wave soldering NPIC6C596A_Q100
- SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... 74LVC4245A_Q100
- plastic thin shrink small outline package; 24 leads; body width 4.4 mm 74LVC4245A_Q100
- SSOP-TSSOP-VSO-WAVE LPC1114FDH28
- TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... 74LVC4245A_Q100
- plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm TFF1007HN
- HVQFN24; reel pack; standard product orientation; 12NC ending 118 TFF1007HN
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