
Overview
The PCA9635PW is a LED Driver made by NXP Semiconductors in a TSSOP-28 package with 28 pins. -40℃~+85℃ 100kHz~1MHz 16 2.3V~5.5V 25mA 5.5V Built-in PWM TSSOP-28 LED Drivers ROHS.
PCBKit's library has its KiCad symbol (Driver_LED:PCA9635, from KiCad's library) and its footprint (Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm, from KiCad's library), ready for a KiCad board. 11,023 are in stock at JLCPCB (part C110795). 9 open-source boards in 7 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- Dimming
- PWM
- Frequency - Switching
- 100kHz~1MHz
- Number of Channels
- 16
- Operating temperature
- -40℃~+85℃
- Output Current
- 25mA
- Output Voltage
- 5.5V
- Switch Tube (Built-In/External)
- Built-in
- Voltage - Input(DC)
- 2.3V~5.5V
Order codes
1- PCA9635PW,118LCSC C110795
Pinout
28| Pin | Name | Type |
|---|---|---|
| 1 | A0 | Input |
| 2 | A1 | Input |
| 3 | A2 | Input |
| 4 | A3 | Input |
| 5 | A4 | Input |
| 6 | LED0 | Output |
| 7 | LED1 | Output |
| 8 | LED2 | Output |
| 9 | LED3 | Output |
| 10 | LED4 | Output |
| 11 | LED5 | Output |
| 12 | LED6 | Output |
| 13 | LED7 | Output |
| 14 | VSS | Power in |
| 15 | LED8 | Output |
| 16 | LED9 | Output |
| 17 | LED10 | Output |
| 18 | LED11 | Output |
| 19 | LED12 | Output |
| 20 | LED13 | Output |
| 21 | LED14 | Output |
| 22 | LED15 | Output |
| 23 | OE | Input |
| 24 | A5 | Input |
| 25 | A6 | Input |
| 26 | SCL | Input |
| 27 | SDA | Input/output |
| 28 | VDD | Power in |
Open-source boards using it
All 9- 4 layers100 × 49.8 mm

- 2 layers64.8 × 62 mm

- 4 layers123.8 × 362.3 mm

- 4 layers140.6 × 108.1 mm

- 2 layers152.4 × 63.5 mm

NixieClock MainBoard
JakobThiessen/NixieClock
Wichtig: Ohne Änderung tut die SD karte nicht. (Betrifft nur V2.0 in der V2.1 sind die Änderung im Layout schon umgesetzt)
111 parts - 2 layers100 × 83.3 mm

- 4 layers56 × 65.6 mm

Main pcb 2025
matthieuvigne/MiAM_robotics
Generic repo for robotic projects with the former MiAM Eurobot team !
71 parts5GPL-3.0 - 2 layers160.5 × 288 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/nxp/PCA9635PW" title="PCA9635PW in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/nxp/PCA9635PW.jpg" alt="PCA9635PW" width="1200" height="900">[](https://pcbkit.io/parts/nxp/PCA9635PW)Questions
Is there a KiCad symbol and footprint for the PCA9635PW?
Yes. The symbol is Driver_LED:PCA9635 and the footprint Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCA9635PW?
TSSOP-28, with 28 pins. Its footprint is drawn on this page.
Where is the PCA9635PW datasheet?
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
Where can I order the PCA9635PW?
JLCPCB lists it as part C110795, with 11,023 in stock; the sellers' links on this page open their listings.
What can replace the PCA9635PW?
Parts like it in the library: the PCA9685PW by NXP Semiconductors, the PCA9685PW/Q900 by NXP Semiconductors, the PCA9635PW/Q900 by NXP Semiconductors and the WS2801S by Worldsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the PCA9635PW?
9 boards in 7 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8PCA9685PW
TSSOP-28-40℃~+85℃ 100kHz~1MHz 16 2.3V~5.5V 25mA 5.5V Built-in PWM TSSOP-28 LED Drivers ROHSNXP SemiconductorsLED DriversPCA9685PW/Q900
TSSOP-28-40℃~+85℃ 16 2.3V~5.5V 200Hz 25mA 5.5V Built-in PWM TSSOP-28 LED Drivers ROHSNXP SemiconductorsLED DriversPCA9635PW/Q900
TSSOP-28-40℃~+85℃ 100kHz~1MHz 16 2.3V~5.5V 25mA 5.5V PWM TSSOP-28 LED Drivers ROHSNXP SemiconductorsLED DriversWS2801S
SOP-14-40℃~+150℃ 1% 1.2kHz~25MHz 200mA 3 3.3V~5.5V 5.5V Built-in DC-DC PWM SOP-14 LED Drivers ROHSWorldsemiLED DriversNLSF595DT
TSSOP-16-55℃~+125℃ 2V~5.5V 5.5V 50mA 8 80MHz~185MHz Over Voltage Protection TSSOP-16 LED Drivers ROHSonsemiLED DriversPCA9634PW
TSSOP-20-40℃~+85℃ 2.3V~5.5V 25MHz 25mA 5.5V 8 Analog、PWM Built-in TSSOP-20 LED Drivers ROHSNXP SemiconductorsLED DriversPCA9685BS,118
HVQFN-28(6x6)-40℃~+85℃ 16 2.3V~5.5V 200Hz 25mA 5.5V Built-in PWM、I2C HVQFN-28(6x6) LED Drivers ROHSNXP SemiconductorsLED DriversPCA9633DP1
TSSOP-8-3mm-40℃~+85℃ 1MHz 2.3V~5.5V 25mA 4 5.5V Analog、PWM Built-in DC-DC TSSOP-8-3mm LED Drivers ROHSNXP SemiconductorsLED Drivers