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NXP Semiconductors PCU9654PW,118
- Part No.:
- PCU9654PW,118
- Manufacturer:
- NXP Semiconductors
- Category:
- LED Drivers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
PCU9654PW,118.pdf
- Description:
- IC LED DRV LIN PWM 100MA 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,053
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Product details
Overview
PCU9654PW,118 from NXP Semiconductors is an 8-bit Ultra Fast-mode (UFm) I²C-bus LED driver IC optimized for RGBA LED voltage-switch dimming and synchronized blinking. It delivers 100 mA per channel across eight open-drain outputs, supports 40 V LED supply tolerance, operates from 2.3 V to 5.5 V, and features dual PWM control: individual 97 kHz (256-step) brightness and group 190 Hz–10.73 s (256-step) dimming/blinking - used in RGB status indicators and keypad backlights.
For engineers reviewing the PCU9654PW,118 datasheet, PCU9654PW,118 pinout, PCU9654PW,118 application, or PCU9654PW,118 equivalent, key selection criteria include UFm 5 MHz I²C timing compliance, TSSOP24 package layout compatibility, OE-driven hardware synchronization across multiple devices, and register-level control of LEDOUT/GRPPWM/GRPFREQ for mixed individual+group lighting schemes.
Technical Context
The PCU9654PW,118 integrates a 25 MHz internal oscillator (no external components required), noise-filtered USDA/USCL inputs, and glitch-free power-up LED output behavior. Its register map includes dedicated PWM0–PWM7 (individual brightness), GRPPWM/GRPFREQ (group control), and LEDOUT0/LEDOUT1 (output state selection with LDRx modes: off/on/PWM-only/PWM+group).
Control logic supports Auto-Increment addressing (AIF + AI[1:0]) for sequential register writes, and hardware address pins A0–A5 enable up to 63 unique device addresses on one bus. The active-low OE pin enables hardware-level synchronization of LED states across multiple PCU9654PW,118 units without software intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3 V to 5.5 V - compatible with 3.3 V and 5 V logic systems; 5.5 V tolerant on non-LED pins. |
| I²C Bus Speed | Up to 5 MHz UFm mode - enables high-throughput LED configuration in real-time lighting control systems. |
| LED Output Current | 100 mA per channel (open-drain) - drives high-brightness RGBA LEDs directly without external drivers. |
| LED Supply Tolerance | Up to 40 V off-state voltage - supports common-anode LED strings with separate higher-voltage rails. |
| Individual PWM | 97 kHz fixed frequency, 256-step duty cycle (0–99.6 %) - provides flicker-free, linear brightness control per LED. |
| Group PWM | 190 Hz fixed or 24 Hz–10.73 s programmable frequency, 256-step duty cycle - enables synchronized dimming or blinking across all 8 outputs. |
| Operating Temperature | −40 °C to +85 °C - suitable for industrial and consumer portable device environments. |
Pinout & Package
TSSOP24 package (SOT355-1), 4.4 mm body width, 0.65 mm pitch - surface-mount compatible with standard reflow profiles and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (24) | Power supply input | 2.3–5.5 V main supply; powers internal oscillator and logic. |
| VSS (1,7,12,13,18) | Ground reference | Five dedicated ground pins minimize ground bounce in multi-LED switching. |
| USCL (22), USDA (23) | UFm I²C interface | 5 MHz-capable serial clock/data lines with integrated noise filtering. |
| OE (19) | Active-low output enable | Hardware-synchronized blink/dim control; overrides all LED states when asserted HIGH. |
| A0–A5 (2–6,20) | Hardware address inputs | Set unique I²C slave address; six pins support up to 63 distinct devices on one bus. |
| LED0–LED7 (8–11,14–17) | Open-drain LED drivers | Each sinks 0–100 mA; tolerate 40 V off-state - connect to LED cathodes in common-anode configurations. |
| n.c. (21) | No-connect terminal | Reserved input; must remain unconnected per datasheet specification. |
Key Features
| Feature | Design Value |
|---|---|
| Software Reset (SWRST) | Full register reset via I²C command (06h + A5h/5Ah) - identical to power-on reset, enabling remote reinitialization without power cycling. |
| LED Group & Sub Call Addresses | One All Call (E0h) + three Sub Call (E2h/E4h/E8h) addresses - allows simultaneous control of LED groups (e.g., all reds) with minimal I²C traffic. |
| Output Update Timing | Selectable change-on-STOP or change-on-Acknowledge - ensures atomic, synchronized LED state updates across multiple devices. |
| Hot Insertion Support | Robust I²C interface tolerates live bus connection - safe for modular LED panel replacement in field-deployed systems. |
| ESD/Latch-up Robustness | 2000 V HBM / 1000 V CDM ESD rating; >100 mA latch-up immunity - meets JEDEC JESD78 for industrial reliability. |
Applications
| RGB Status Indicators | Keypad Backlighting |
|---|---|
Use Scenario: Multi-color status feedback on industrial HMIs and medical device panels requiring precise color mixing and low-latency state changes. IC Role / Device Role / Timing Role: PCU9654PW,118 acts as the primary LED driver, managing independent red/green/blue intensity via PWM0–PWM7 while applying uniform group blinking via GRPPWM/GRPFREQ for alarm states. Use Value: Eliminates microcontroller GPIO overhead and software PWM timing jitter; 97 kHz individual PWM prevents visible flicker even at lowest brightness levels. |
Use Scenario: Backlighting for membrane keypads in handheld test equipment and ruggedized consumer devices with space-constrained PCB layouts. IC Role / Device Role / Timing Role: PCU9654PW,118 drives amber/white LED arrays using open-drain outputs referenced to 24 V backlight rail, controlled via UFm I²C from a low-pin-count MCU. Use Value: 40 V LED supply tolerance enables direct use of existing higher-voltage rails; six hardware address pins allow daisy-chained keypad modules sharing one I²C bus. |
| LCD Backlight Control | RGBA LED Displays |
Use Scenario: Dynamic brightness scaling for small-format LCDs in battery-powered instrumentation where power efficiency and thermal management are critical. IC Role / Device Role / Timing Role: PCU9654PW,118 implements ambient-light-adaptive dimming by updating GRPPWM register in response to sensor data, while maintaining individual LED consistency. Use Value: Group PWM at 190 Hz avoids audible coil whine from inductive backlight supplies; low standby current extends battery life between UI interactions. |
Use Scenario: Pixel-level intensity control in compact signage and smart home displays using discrete RGBA LED clusters per segment. IC Role / Device Role / Timing Role: PCU9654PW,118 serves as the per-segment driver, leveraging LDRx = 11 mode to combine individual color balance (PWMx) with global animation timing (GRPFREQ). Use Value: 256-step linear resolution per channel enables smooth gamma-corrected transitions; UFm 5 MHz bus speed supports rapid frame updates across dozens of devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC59283RTJR | 16-channel, 45 mA/channel, 3.3 V only, no group PWM, SPI interface | Lacks synchronized blinking and voltage-flexible supply; requires level-shifting for 5 V systems | Choose for higher channel count in 3.3 V-only designs where group control is unnecessary |
| PCA9635PW,118 | 8-channel, 25 mA/channel, 1.8–5.5 V, 1 kHz group PWM only, no programmable blink period | Lower drive strength limits LED brightness; fixed 1 kHz group frequency prevents slow-blink effects | Choose for cost-sensitive, low-power indicator applications without demanding dimming or long-period blink requirements |
Compared with TLC59283RTJR and PCA9635PW,118, the PCU9654PW,118 uniquely combines 100 mA per channel, 40 V LED tolerance, fully programmable group blink period (24 Hz–10.73 s), and 5 MHz UFm I²C - making it the only option supporting high-brightness RGBA lighting with synchronized, human-perceptible animations in space-constrained industrial UIs.
Availability
PCU9654PW,118 is available at Aetrix Electronics and suitable for RGB status indicators, keypad backlights, and LCD backlighting requiring stable component supply, long-term industrial lifecycle support, and consistent TSSOP24 packaging.
Supply support for PCU9654PW,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in I²C peripheral IP and LED control architectures.
The PCU9654PW,118 belongs to NXP's Ultra Fast-mode LED driver family, designed specifically for high-speed, multi-device synchronized lighting control in resource-constrained embedded systems where software-driven PWM is impractical.
FAQ
What is the maximum LED supply voltage supported by the PCU9654PW,118?
The PCU9654PW,118 open-drain LED outputs tolerate up to 40 V in the off state, enabling direct connection to common-anode LED strings powered by separate 12 V, 24 V, or 36 V rails. This eliminates the need for external high-voltage drivers or level-shifting circuitry when interfacing with higher-voltage LED supplies - a key capability confirmed in the official NXP datasheet Section 2.
How does the PCU9654PW,118 handle simultaneous control of multiple devices?
The PCU9654PW,118 supports synchronized operation across multiple units via its active-low OE pin, which globally enables or disables all LED outputs. When configured in LDRx = 01 mode (fully ON), OE accepts external PWM signals for hardware-level dimming or blinking - allowing dozens of PCU9654PW,118 devices to respond identically without I²C bus contention or software coordination.
Can the PCU9654PW,118 perform both individual and group PWM simultaneously?
Yes - the PCU9654PW,118 supports concurrent individual and group PWM when LED output state is set to LDRx = 11 (via LEDOUT0/LEDOUT1 registers). In this mode, each LED's brightness is determined by its dedicated PWMx register (97 kHz), while overall intensity or blink behavior is modulated by GRPPWM and GRPFREQ - enabling complex lighting effects like pulsing RGB gradients with static hue balance.
What I²C address options does the PCU9654PW,118 provide for multi-device networks?
The PCU9654PW,118 offers six hardware address pins (A0–A5) for up to 63 unique slave addresses, plus one programmable LED All Call address (E0h default) and three Sub Call addresses (E2h/E4h/E8h default). These allow hierarchical control - e.g., sending one command to all red LEDs across 20 devices, then another to subset "panel A" - reducing I²C transaction overhead significantly compared to point-to-point addressing.
Does the PCU9654PW,118 require external components for oscillator operation?
No - the PCU9654PW,118 integrates a 25 MHz internal oscillator that requires no external crystals, capacitors, or resistors. This simplifies BOM, reduces PCB area, and improves startup reliability versus external-clock-dependent LED drivers. The oscillator is enabled by default at power-on and can be disabled via the SLEEP bit in MODE1 register to reduce standby current.
PCU9654PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 8
- Voltage - Supply (Min):
- 2.3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 40V
- Current - Output / Channel:
- 100mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TSSOP
PCU9654PW,118 FAQ
1.How can I place an order for PCU9654PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCU9654PW,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PCU9654PW,118 reliable?
The price and inventory of PCU9654PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCU9654PW,118 is usually 5 days.
3.What payment methods are accepted for PCU9654PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCU9654PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCU9654PW,118?
PCU9654PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCU9654PW,118 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PCU9654PW,118?
For technical support, including PCU9654PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCU9654PW,118 requirements.
6.How does Aetrix verify that PCU9654PW,118 is sourced from the original manufacturer or authorized distributors?
All PCU9654PW,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PCU9654PW,118 meets industry standards.
7.What is the process for return or replacement of PCU9654PW,118?
All PCU9654PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with PCU9654PW,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PCU9654PW,118 part is unused and in its original packaging.
Return procedure for PCU9654PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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