PCA9634PW,118
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Frequency | 25MHz |
| Mfr | NXP USA Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Type | Power Switch |
| Number of Outputs | 8 |
| Voltage - Output | 5.5V |
| Applications | Backlight |
| Supplier Device Package | 20-TSSOP |
| Dimming | I²C |
| Topology | - |
| Current - Output / Channel | 25mA |
| Internal Switch(s) | Yes |
| Voltage - Supply (Max) | 5.5V |
| Voltage - Supply (Min) | 2.3V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | PCA9634 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
PCA9634PW,118 8-bit Fm+ I²C LED Driver 25mA 20-TSSOP
The PCA9634PW,118 is a high-performance 8-bit I²C-bus LED driver from NXP Semiconductors, designed for precision RGB/RGBA color mixing and brightness control. Housed in a space-saving 20-pin TSSOP surface-mount package, it operates from a 2.3V to 5.5V supply voltage and supports the fast-mode plus (Fm+) I²C bus speed up to 1MHz. This device integrates two levels of pulse-width modulation (PWM) control: 8-bit individual PWM (256 steps, 97kHz) for per-channel brightness adjustment and 8-bit group PWM (256 steps, 24Hz to 10.73s) for collective dimming or blinking. Featuring programmable open-drain/totem-pole outputs (25mA sink current), built-in noise filtering, software reset, and hot-swap capability, it ensures stable, glitch-free operation in diverse embedded systems. With a -40°C to +85°C industrial temperature range and robust ESD protection, it is ideal for space-constrained, low-power LED lighting and indicator applications.
PCA9634PW,118 LED driver Applications
● RGB/RGBA LED lighting: Gaming peripherals, decorative lighting, mood lighting systems
● Display backlighting: LCD monitors, automotive infotainment, portable device screens
● Industrial indicators: Control panel LEDs, status lights, test & measurement equipment
● Automotive interiors: Dashboard lighting, ambient lighting, button illumination
● Consumer electronics: Smart home devices, audio equipment, IoT sensor indicators
● Embedded systems: LED matrix control, low-power microcontroller I/O expansion
Alternative LED drivers
1. TI TCA9634PW: Pin-compatible 8-bit I²C LED driver, 1MHz Fm+, dual PWM dimming, direct replacement for NXP PCA9634 in industrial and consumer designs.
2. onsemi CAT9532XT: 8-bit I²C LED dimmer with 256-step PWM, 2.5V–5.5V operation, low power, ideal for cost-sensitive portable lighting and indicator applications.
3. Maxim MAX6966AUE+: 8-port LED driver with I²C interface, constant-current sink, 36mA per channel, enhanced ESD protection for harsh industrial environments.
4. Diodes Inc. PI4IOE5698: 8-bit Fm+ I²C LED controller, individual/group PWM, 25mA drive, TSSOP-20, economical alternative for high-volume RGB lighting.
5. IS31FL3199-ZLS-TR: 8-channel LED driver with 1MHz I²C, 256-level dimming, low standby current, optimized for battery-powered IoT and wearable devices.
