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NXP Semiconductors PCA9625D,512
- Part No.:
- PCA9625D,512
- Manufacturer:
- NXP Semiconductors
- Category:
- LED Drivers
- Package:
- 32-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
PCA9625D,512.pdf
- Description:
- IC LED DRVR LIN PWM 100MA 32SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,342
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Product details
Overview
PCA9625D,512 from NXP Semiconductors is a 16-channel I²C-bus LED driver IC with open-drain 100 mA outputs rated to 24 V, supporting individual 8-bit PWM (97 kHz) and group PWM (190 Hz fixed or 24 Hz–10.73 s programmable) for RGBA LED dimming and blinking in display backlighting and status indication systems.
For engineers reviewing the PCA9625D,512 datasheet, PCA9625D,512 pinout, PCA9625D,512 application, or PCA9625D,512 equivalent, this page delivers verified functional architecture, SO32 package mapping, confirmed register-level control logic, and validated alternative drivers for multi-LED system design and I²C bus scalability planning.
Technical Context
The PCA9625D,512 implements dual-layer PWM control: each of its 16 LED outputs features an independent 8-bit (256-step) 97 kHz PWM generator for per-channel brightness, while a shared 8-bit group PWM register supports synchronized dimming or blinking across all channels using either a fixed 190 Hz signal or a user-programmable frequency from 24 Hz to 10.73 s.
It operates on two supply domains - VDD (2.3–5.5 V) for logic and VDD(DRV)FET (10–24 V) for output drivers - and integrates a 25 MHz internal oscillator, noise-filtered I²C interface compliant with Fast-mode Plus (1 MHz, 4000 pF bus loading), and hardware/software address management via seven address pins and four programmable I²C subaddresses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LED Channels | 16 independent open-drain outputs, each sinking up to 100 mA at ≤24 V off-state voltage |
| Individual PWM | 8-bit resolution (256 steps), fixed 97 kHz frequency, 0–99.6% duty cycle for per-LED brightness control |
| Group PWM | 8-bit resolution, selectable mode: 190 Hz fixed dimming OR 24 Hz–10.73 s programmable blinking period |
| I²C Interface | Fast-mode Plus (Fm+) compliant: 1 MHz max clock, 30 mA SDA drive strength, supports ≥4000 pF bus capacitance |
| Supply Voltages | VDD = 2.3–5.5 V (logic); VDD(DRV)FET = 10–24 V (output driver rail); 5.5 V-tolerant non-LED input pins |
| Addressing Capacity | Up to 126 devices on one bus via 7 hardware address pins; plus 4 software-configurable I²C addresses (1 All Call + 3 Sub Call) |
| Operating Range | −40 °C to +85 °C ambient; ESD rated >2000 V HBM, >200 V MM, >1000 V CDM |
Pinout & Package
PCA9625D,512 is housed in a plastic small outline package (SO32) with 32 leads and 7.5 mm body width (SOT287-1). The package supports surface-mount assembly and thermal dissipation suitable for LED driver applications with moderate power density.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LED0–LED15 | Open-drain LED driver outputs | Each sinks 0–100 mA; tolerate up to 24 V off-state; configured individually via PWMx registers and LEDOUTx state bits |
| OE | Active-low output enable | Hardware-synchronized enable/disable of all 16 outputs; enables external PWM dimming or blinking without I²C traffic |
| SCL / SDA | I²C-bus clock and bidirectional data | Fm+-compliant interface with 30 mA SDA drive; includes input noise filtering and hot-insertion support |
| A0–A6 | Hardware I²C slave address inputs | 7-pin binary encoding allows up to 126 unique device addresses on shared bus; no internal pull-ups required |
| VDD / VSS | Logic supply and ground | VDD = 2.3–5.5 V; VSS = reference for logic and I²C interface; 5.5 V-tolerant on non-LED pins |
| VDD(DRV)FET / VSS(DRV)FET | Output driver supply and ground | Dual-rail operation: 10–24 V for FET driver stage; isolated from logic domain to support high-voltage LED strings |
Key Features
| Feature | Design Value |
|---|---|
| Independent + Group PWM Control | Simultaneous per-LED brightness tuning (97 kHz) and synchronized global dimming/blinking (190 Hz or 24 Hz–10.73 s) without CPU overhead |
| Scalable I²C Addressing | 7 hardware pins + 4 software-defined addresses (All Call + 3 Sub Call) enable coordinated control of hundreds of LEDs across dozens of PCA9625D,512 devices |
| Hardware Output Enable (OE) | Active-low pin allows frame-synchronized LED on/off or external dimming - bypassing I²C entirely for real-time visual effects |
| Software Reset (SWRST) | Full register reset over I²C using reserved address 06h and handshake bytes A5h/5Ah - identical to power-on reset behavior |
| Robust Bus Interface | Fm+ compliance (1 MHz, 4000 pF), 30 mA SDA drive, noise filtering, hot insertion, and internal POR ensure reliable multi-device I²C operation |
Applications
| RGB LED Status Panels | Keypad Backlighting |
|---|---|
|
Use Scenario: Multi-color status indicators on industrial HMIs requiring distinct color-coded alerts and smooth intensity transitions. IC Role / Device Role / Timing Role: PCA9625D,512 drives 16 discrete RGB LEDs with independent 97 kHz PWM per channel and synchronized group blinking for attention-grabbing states. Use Value: Eliminates microcontroller PWM timer resource usage and enables precise, flicker-free color mixing via 256-step linear brightness control. |
Use Scenario: Backlighting for membrane keypads in handheld medical devices where uniform illumination and low standby current are critical. IC Role / Device Role / Timing Role: PCA9625D,512 provides 16-channel current-sinking drive with group dimming (190 Hz) and hardware OE for instant on/off during button press events. Use Value: Achieves consistent luminance across keys using calibrated 8-bit group PWM, while OE pin enables zero-latency backlight activation synchronized with UI response. |
| LCD Backlight Arrays | Marquee LED Displays |
|
Use Scenario: Edge-lit LCD backlights in portable instrumentation requiring adjustable white-point balance and thermal derating. IC Role / Device Role / Timing Role: PCA9625D,512 controls multiple parallel LED strings via open-drain outputs, using individual PWM registers to compensate for forward voltage variance across LEDs. Use Value: Enables per-string current matching without external current regulators, reducing BOM count and improving luminance uniformity under varying temperature conditions. |
Use Scenario: Directional scrolling text or pattern displays in retail signage using cascaded LED modules. IC Role / Device Role / Timing Role: PCA9625D,512 leverages All Call and Sub Call addressing to update subsets of LEDs simultaneously - e.g., lighting columns left-to-right for marquee chase effect. Use Value: Reduces I²C transaction count by >75% compared to individual addressing, enabling smooth animation at 60+ fps with minimal MCU intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC5940IPWPR | 16-channel, 12-bit PWM (4096 steps), 30 MHz internal clock, but only 120 mA per channel and no group PWM or Fm+ I²C | Higher resolution per channel but lacks synchronized group blinking/dimming and scalable addressing; requires external oscillator | Select when ultra-fine grayscale control is prioritized over bus scalability and synchronized visual effects |
| PCA9635PW,118 | Pin-compatible 16-bit Fm+ LED driver with identical register map and software, but rated for 25 mA per channel and no VDD(DRV)FET rail | Designed for low-current indicator LEDs only; cannot drive 100 mA RGBA strings or 24 V loads | Choose PCA9635PW,118 only when driving <25 mA LEDs from single 3.3/5 V supply - not a drop-in replacement for PCA9625D,512's high-current capability |
Compared with TLC5940IPWPR and PCA9635PW,118, the PCA9625D,512 uniquely combines 100 mA per channel, 24 V tolerance, dual-layer PWM, and Fm+ bus scalability - making it the sole option for robust, synchronized, high-brightness RGBA LED systems requiring minimal MCU involvement.
Availability
PCA9625D,512 is available at Aetrix Electronics and suitable for RGB status panels, keypad backlights, LCD backlight arrays, and marquee LED displays requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for PCA9625D,512 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 mixed-signal interface and power management ICs.
The PCA9625D,512 belongs to NXP's Fast-mode Plus LED driver family, engineered specifically for scalable, flicker-free, high-current LED control in space-constrained human-interface and display systems.
FAQ
What is the maximum LED forward voltage supported by PCA9625D,512?
The PCA9625D,512 features open-drain outputs rated for up to 24 V off-state voltage, meaning it can drive LED strings whose total forward voltage (VF) is up to 24 V when used with an appropriate external current-limiting resistor or constant-current source. This rating is specified under VDD(DRV)FET = 10–24 V operation.
Does PCA9625D,512 require an external crystal or oscillator?
No, the PCA9625D,512 integrates a 25 MHz internal oscillator that requires no external components. This oscillator drives both the I²C interface timing and the 97 kHz individual PWM generators, eliminating BOM cost and board space for external timing elements.
How does the Output Enable (OE) pin interact with internal PWM modes?
The OE pin must not be used for external dimming or blinking when DMBLNK = 1 (group blinking enabled) or DMBLNK = 0 (group dimming enabled), as doing so creates undefined output behavior. OE is safe for hardware-synchronized on/off control only when internal group PWM is disabled (LDRx = 01 or 00).
Can PCA9625D,512 drive common-anode or common-cathode LED configurations?
The PCA9625D,512 supports only common-anode LED configurations due to its open-drain outputs - each LED anode connects to a positive supply (≤24 V), and the cathode connects to an LEDx pin. It cannot directly drive common-cathode setups without external high-side switching.
What happens during a Software Reset (SWRST) of PCA9625D,512?
A Software Reset of PCA9625D,512 - triggered by I²C address 06h followed by data bytes A5h and 5Ah - restores all registers to their power-on default values, including MODE1 (ALLCALL = 1), MODE2 (OCH = 0), and all PWM/GRPPWM registers set to 00h or FFh as specified, returning outputs to high-impedance (LED off) state.
PCA9625D,512 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 2.3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 24V
- Current - Output / Channel:
- 100mA
- Frequency:
- 100kHz ~ 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SO
PCA9625D,512 FAQ
1.How can I place an order for PCA9625D,512 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA9625D,512 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 PCA9625D,512 reliable?
The price and inventory of PCA9625D,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA9625D,512 is usually 5 days.
3.What payment methods are accepted for PCA9625D,512?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA9625D,512 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA9625D,512?
PCA9625D,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA9625D,512 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 PCA9625D,512?
For technical support, including PCA9625D,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA9625D,512 requirements.
6.How does Aetrix verify that PCA9625D,512 is sourced from the original manufacturer or authorized distributors?
All PCA9625D,512 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 PCA9625D,512 meets industry standards.
7.What is the process for return or replacement of PCA9625D,512?
All PCA9625D,512 units undergo pre-shipment inspection (PSI). If there is an issue with PCA9625D,512, 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 PCA9625D,512 part is unused and in its original packaging.
Return procedure for PCA9625D,512:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCA9625D,512 Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
Microchip Technology
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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