My Inquiry
My Account
NXP Semiconductors PCA9624BS,118
- Part No.:
- PCA9624BS,118
- Manufacturer:
- NXP Semiconductors
- Category:
- LED Drivers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
PCA9624BS,118.pdf
- Description:
- IC LED DRV LIN PWM 100MA 24HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,004
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PCA9624BS,118 from NXP Semiconductors is an 8-bit Fast-mode Plus (Fm+) I²C-bus LED driver with eight 100 mA open-drain outputs, 256-step individual PWM (97 kHz), 256-step group PWM (190 Hz fixed or 24 Hz–10.73 s programmable), and active-low Output Enable (OE) for hardware synchronization-designed for RGB/RGBA LED status indicators and keypad backlights in handheld devices.
For engineers reviewing the PCA9624BS,118 datasheet, PCA9624BS,118 pinout, PCA9624BS,118 application, or PCA9624BS,118 equivalent, key selection criteria include its HVQFN24 package, 2.3 V–5.5 V supply range, 40 V output voltage tolerance, software-reset capability via I²C, and support for up to 126 devices on one bus using seven hardware address pins.
Technical Context
The PCA9624BS,118 integrates a 25 MHz internal oscillator (no external components required) and supports dual-layer PWM control: per-channel 97 kHz PWM for precise brightness tuning and group-level PWM with selectable dimming/blinking modes controlled by the DMBLNK bit in MODE2. Its I²C interface operates at up to 1 MHz with 30 mA SDA drive strength to handle buses up to 4000 pF.
Output states are fully configurable per LED (off/on/individual PWM/group+individual PWM) via LEDOUT0/LEDOUT1 registers, while hardware address pins (A0–A6) and four software-programmable I²C addresses (All Call + three Sub Call) enable flexible multi-device coordination-e.g., synchronizing red LEDs across multiple units or implementing marquee effects with minimal bus traffic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| I²C Bus Speed | Up to 1 MHz (Fast-mode Plus); enables high-speed LED configuration without bus contention in dense systems. |
| LED Drive Capability | 8 × open-drain outputs sinking 0–100 mA each; supports 40 V off-state voltage for direct connection to common-anode LED strings. |
| Individual PWM Resolution | 256 steps (8-bit), 97 kHz fixed frequency; provides flicker-free linear brightness control from 0 % to 99.6 % duty cycle. |
| Group PWM Modes | Dual-mode: 190 Hz fixed-frequency dimming OR programmable blink period (24 Hz to 10.73 s) with 256-step duty cycle control. |
| Supply Voltage Range | 2.3 V to 5.5 V; compatible with single-supply battery-powered systems (e.g., 3.3 V or 5 V rails) and tolerant to brown-out conditions. |
| Operating Temperature | −40 °C to +85 °C; qualified for industrial and consumer portable applications including cellular handsets and embedded HMI panels. |
| Addressing Capacity | Up to 126 devices per bus via 7 hardware address pins; plus All Call and 3 Sub Call addresses for grouped command execution. |
Pinout & Package
HVQFN24 package (SOT616-3): 4 mm × 4 mm × 0.85 mm body with exposed thermal pad; requires soldering of VSS pins and center pad to PCB ground for thermal/electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 2.3 V–5.5 V main supply; powers internal logic and oscillator. |
| VSS (pins 4, 9, 10, 15, center pad) | Ground reference | Mandatory connection to PCB ground plane; center pad improves thermal dissipation and noise immunity. |
| SCL / SDA | I²C bus interface | Supports 1 MHz Fm+ operation; SDA has 30 mA drive strength for high-capacitance bus driving. |
| OE | Active-low output enable | Hardware-synchronized global LED on/off or external PWM dimming; overrides all register-controlled states. |
| A0–A6 | Hardware slave address inputs | Set unique I²C address (7-bit); floating state undefined-must be pulled HIGH/LOW externally. |
| LED0–LED7 | Open-drain LED drivers | Each sinks up to 100 mA; tolerate up to 40 V-enables direct drive of common-anode LED arrays without external FETs. |
Key Features
| Feature | Design Value |
|---|---|
| Software Reset (SWRST) | Full register reset via I²C command (06h write), matching Power-On Reset behavior-enables remote reinitialization without power cycling. |
| Noise-immune I²C interface | Integrated input filters on SCL/SDA and 5.5 V-tolerant non-LED pins-reduces susceptibility to ESD and board-level noise in compact layouts. |
| Flexible output update timing | Configurable change-on-ACK or change-on-STOP (default); ensures synchronized LED state updates across multiple PCA9624BS,118 devices. |
| Hot-insertion support | Internal power-on reset and glitch-free startup-allows safe insertion into live I²C buses without disrupting communication. |
| Low standby current | Typical <1 μA in sleep mode (SLEEP bit = 1); extends battery life in always-on indicator applications. |
Applications
| RGB Status Indicators | Keypad Backlight Control |
|---|---|
Use Scenario: Multi-color status feedback on industrial HMIs or medical device front panels requiring independent red/green/blue intensity control. IC Role / Device Role / Timing Role: LED driver providing per-channel 97 kHz PWM dimming and group-level blinking for alarm states. Use Value: Eliminates need for discrete transistors and external PWM generators; reduces BOM count and layout area while enabling smooth color transitions. |
Use Scenario: Uniform backlighting for membrane keypads in battery-powered handheld instruments with variable ambient light conditions. IC Role / Device Role / Timing Role: Group-dimming controller using GRPPWM/GRPFREQ registers to adjust overall brightness or implement breathing effects. Use Value: Achieves consistent luminance across all keys using single I²C command; OE pin allows instant hardware disable during sleep mode. |
| LED Display Segments | Cellular Phone UI Lighting |
Use Scenario: Driving 7-segment or dot-matrix LED displays in test equipment where segment brightness must scale with operating temperature. IC Role / Device Role / Timing Role: Constant-current sink driver with thermal-aware dimming via microcontroller-adjusted PWM registers. Use Value: Maintains display readability across −40 °C to +85 °C without analog compensation circuitry. |
Use Scenario: Dynamic UI lighting in smartphones-e.g., notification pulses, charging indicators, or proximity-sensor-assisted dimming. IC Role / Device Role / Timing Role: Synchronized multi-device blink controller using All Call address and OE pin for frame-accurate timing. Use Value: Enables coordinated visual feedback across multiple PCBs (e.g., front/rear modules) with zero added latency or firmware overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCA9634BS,118 | Same register map and software compatibility; replaces internal 100 mA FETs with high-voltage open-drain outputs (40 V, >100 mA capable) for driving higher-power LEDs. | Required when LED forward voltage exceeds 5 V or peak current demand exceeds 100 mA per channel. | Select PCA9634BS,118 if external MOSFET drivers are needed; retains identical I²C protocol and configuration flow. |
| TLC59284PWR | 16-channel constant-current LED driver with 12-bit PWM (4096 steps), 30 MHz clock input, and no integrated oscillator; requires external timing source. | Better suited for high-resolution dimming in signage or architectural lighting where 256-step granularity is insufficient. | Choose TLC59284PWR only when >8 channels or >8-bit PWM resolution is mandatory; lacks All Call/Sub Call addressing and OE pin functionality. |
Compared with PCA9634BS,118 and TLC59284PWR, the PCA9624BS,118 delivers optimal integration for mid-power RGB/RGBA interfaces-combining on-chip oscillator, hardware address flexibility, and synchronized group control without external components or timing dependencies.
Availability
PCA9624BS,118 is available at Aetrix Electronics and suitable for RGB status indicators, keypad backlights, and LED display segments requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for PCA9624BS,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 expertise in mixed-signal ICs and embedded processing.
The PCA9624BS,118 belongs to NXP's Fm+ I²C LED driver family, engineered specifically for low-power, high-density LED control in space-constrained portable and HMI systems-emphasizing bus efficiency, thermal robustness, and software-defined flexibility.
FAQ
What is the maximum number of PCA9624BS,118 devices supported on a single I²C bus?
The PCA9624BS,118 supports up to 126 devices on one I²C bus using its seven hardware address pins (A0–A6). Two reserved addresses (Software Reset and LED All Call) reduce the theoretical 128-address space to 126 usable slave addresses. This enables large-scale LED arrays without bus expansion hardware.
Does PCA9624BS,118 require external components for oscillator operation?
No, the PCA9624BS,118 includes a 25 MHz internal oscillator that requires no external crystals or capacitors. This simplifies PCB layout, reduces BOM cost, and eliminates oscillator start-up delays-making it ideal for battery-powered and space-constrained applications where reliability and integration are critical.
Can PCA9624BS,118 drive LEDs with forward voltages above 5 V?
Yes, the PCA9624BS,118 features 40 V-tolerant open-drain outputs, allowing direct connection to common-anode LED strings with forward voltages up to 40 V (e.g., multi-LED white or blue chains). The 100 mA per-channel sink capability remains valid across the full 2.3 V–5.5 V VDD range.
How does the Output Enable (OE) pin interact with internal PWM settings in PCA9624BS,118?
The OE pin overrides all internal PWM and register-controlled states: when OE is HIGH, all LED outputs go high-impedance (effectively OFF), regardless of PWM0–PWM7 or GRPPWM values; when OE is LOW, outputs resume normal operation per configured registers. This enables hardware-level emergency shutdown or synchronized blinking across multiple PCA9624BS,118 devices.
Is PCA9624BS,118 pin-compatible with PCA9624PW,112 or PCA9624PW,118?
No-PCA9624BS,118 uses the HVQFN24 package (SOT616-3) with a 4 mm × 4 mm footprint and exposed thermal pad, while PCA9624PW variants use TSSOP24 (SOT355-1) with 4.4 mm body width and no thermal pad. Pin functions are identical, but mechanical mounting, thermal design, and PCB land patterns differ significantly.
PCA9624BS,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- 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:
- 100kHz ~ 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-HVQFN (4x4)
PCA9624BS,118 FAQ
1.How can I place an order for PCA9624BS,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA9624BS,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 PCA9624BS,118 reliable?
The price and inventory of PCA9624BS,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA9624BS,118 is usually 5 days.
3.What payment methods are accepted for PCA9624BS,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA9624BS,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA9624BS,118?
PCA9624BS,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA9624BS,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 PCA9624BS,118?
For technical support, including PCA9624BS,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA9624BS,118 requirements.
6.How does Aetrix verify that PCA9624BS,118 is sourced from the original manufacturer or authorized distributors?
All PCA9624BS,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 PCA9624BS,118 meets industry standards.
7.What is the process for return or replacement of PCA9624BS,118?
All PCA9624BS,118 units undergo pre-shipment inspection (PSI). If there is an issue with PCA9624BS,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 PCA9624BS,118 part is unused and in its original packaging.
Return procedure for PCA9624BS,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCA9624BS,118 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
