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NXP Semiconductors PCA9633DP1,118
- Part No.:
- PCA9633DP1,118
- Manufacturer:
- NXP Semiconductors
- Category:
- LED Drivers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
PCA9633DP1,118.pdf
- Description:
- IC LED DRIVER PS PWM 25MA 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,668
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Product details
Overview
PCA9633DP1,118 from NXP Semiconductors is an I²C-bus controlled 4-bit LED driver optimized for RGBA color mixing, featuring four independent 8-bit (256-step) individual PWM channels at 97 kHz, one 8-bit group PWM controller (190 Hz fixed or 24 Hz–10.73 s programmable), 2.3 V–5.5 V supply range, and TSSOP8 package with open-drain/totem-pole output configuration. It enables precise brightness control in compact handheld displays.
For engineers reviewing the PCA9633DP1,118 datasheet, PCA9633DP1,118 pinout, PCA9633DP1,118 application, or PCA9633DP1,118 equivalent, key selection criteria include its 8-pin TSSOP footprint, absence of hardware address pins or OE input, fixed I²C slave address (0xC0), 97 kHz individual PWM frequency, and suitability for low-pin-count RGB status indicators requiring minimal external components.
Technical Context
The PCA9633DP1,118 implements a dual-layer PWM architecture: each of its four LED outputs is driven by a dedicated 97 kHz, 256-step individual PWM generator, while a shared 256-step group PWM modulates all outputs simultaneously at either 190 Hz (dimming) or programmable 24 Hz–10.73 s (blinking). Its I²C interface complies with Fast-mode Plus (Fm+) up to 1 MHz and supports 30 mA SDA drive strength for high-capacitance buses.
Internally, it uses a 25 MHz oscillator with no external components required, includes noise filtering on SDA/SCL inputs, edge-rate control on outputs, and power-on reset. The device lacks address pins and OE functionality-distinguishing it from 10- and 16-pin variants-and defaults to fixed I²C address 0xC0 (R/W = 0), with no hardware address selection capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| I²C Interface | Fast-mode Plus (Fm+), up to 1 MHz; enables high-speed bus communication with up to 4000 pF load |
| Individual PWM | 97 kHz fixed frequency, 256-step (0–99.6% duty cycle); 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; supports synchronized dimming or blinking across all 4 outputs |
| Supply Voltage | 2.3 V to 5.5 V; compatible with single-supply 3.3 V or 5 V systems without level shifting |
| Output Drive | Totem-pole mode: 25 mA sink / 10 mA source at 5 V; open-drain mode: 25 mA sink; 5.5 V tolerant outputs allow direct LED connection |
| Operating Temp. | −40 °C to +85 °C; qualified for industrial and consumer portable applications |
| ESD Protection | 2000 V HBM, 200 V MM, 1000 V CDM; robust against handling and board-level transients |
Pinout & Package
TSSOP8 package (SOT505-1), 3 mm body width, surface-mount, lead-free, RoHS-compliant. Pin 1 index marked; requires standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LED0 (Pin 1) | LED driver output 0 | Drives red/amber LED in RGBA system; configurable as on/off/PWM-controlled via register LDR0 |
| VDD (Pin 2) | Positive supply | 2.3–5.5 V main power; decoupling capacitor (0.1 µF) required near pin |
| LED1 (Pin 3) | LED driver output 1 | Drives green LED; independent 97 kHz PWM control via PWM1 register |
| SDA (Pin 4) | I²C bidirectional data | Open-drain, Fm+ compliant; 30 mA drive strength supports long traces or multiple devices |
| LED2 (Pin 5) | LED driver output 2 | Drives blue LED; supports group dimming/blinking when LDR2 = 11b |
| SCL (Pin 6) | I²C clock input | Input-only, noise-filtered; accepts 1 MHz Fm+ clock with internal slew rate control |
| LED3 (Pin 7) | LED driver output 3 | Drives amber or auxiliary LED; fully software-configurable state via LEDOUT register |
| VSS (Pin 8) | Ground reference | Must be connected to system ground plane; low-impedance return path critical for PWM stability |
Key Features
| Feature | Design Value |
|---|---|
| Software Reset (SWRST) | Full register reset via I²C address 0x06 (R/W=0); restores all registers-including PWMx, GRPPWM, LEDOUT-to power-on defaults |
| LED Group/Sub Call Addressing | One LED All Call (E0h) and three Sub Call (E2h/E4h/E8h) addresses enable simultaneous control of LED groups without bus contention |
| Output State Update Timing | Configurable to change on STOP command (default) or ACK; ensures atomic multi-register updates across multiple PCA9633DP1,118 devices |
| Internal Oscillator | 25 MHz precision oscillator; eliminates external crystal/capacitor, reducing BOM count and PCB area |
| Hot Insertion Support | Safe power-up sequencing; no glitch on VDD ramp; allows live insertion into powered I²C bus systems |
Applications
| RGB Status Indicators | Keypad Backlights |
|---|---|
Use Scenario: Compact user-interface feedback in feature phones and industrial HMIs using discrete red/green/blue LEDs. IC Role / Device Role / Timing Role: LED driver providing independent 97 kHz PWM per channel to eliminate visible flicker and support smooth color transitions. Use Value: Enables full-color status coding (e.g., green=ready, red=error, amber=warning) with only one 8-pin IC and no external timing components. |
Use Scenario: Uniform backlighting for membrane keypads in medical handhelds and ruggedized PDAs. IC Role / Device Role / Timing Role: Constant-current LED driver with group PWM enabling synchronized dimming across all keys during low-power modes. Use Value: Reduces bill-of-materials by integrating 4-channel drive, group control, and I²C interface in TSSOP8-ideal for space-constrained layouts. |
| LED Display Segments | Low-Power Status Panels |
Use Scenario: 7-segment or dot-matrix LED displays in battery-powered test equipment and IoT gateways. IC Role / Device Role / Timing Role: Individual brightness control per segment via PWM0–PWM3 registers; group blink for attention alerts. Use Value: Achieves consistent luminance across segments using 256-step linear scaling-critical for readable display contrast under varying ambient light. |
Use Scenario: Power-status, connectivity, and fault indication on embedded controllers and network switches. IC Role / Device Role / Timing Role: Low-quiescent-current LED driver (standby current < 1 µA) with programmable blink period (24 Hz–10.73 s). Use Value: Extends battery life in always-on monitoring systems while maintaining human-perceivable alert patterns without 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 |
|---|---|---|---|
| TLC59116IPWR | 16-channel, 12-bit PWM, 1.8–5.5 V supply; no group blink; I²C up to 400 kHz | Higher channel count and resolution but larger TSSOP24 package; lacks programmable group blink period | Select when >4 channels or >256-step grayscale are required; not drop-in for PCA9633DP1,118's 8-pin layout |
| IS31FL3728-QFLS4-TR | 28-channel, 8-bit PWM, 2.7–5.5 V; integrated auto-breathing; QFN28 package | Supports complex animation sequences via built-in frame controller; requires more PCB area and firmware overhead | Prefer for advanced UI lighting effects; PCA9633DP1,118 remains optimal for simple, low-pin-count RGBA control |
Compared with TLC59116IPWR and IS31FL3728-QFLS4-TR, the PCA9633DP1,118 delivers targeted 4-channel RGBA control in the smallest possible footprint (TSSOP8), with unique group blink timing flexibility and Fm+ speed-making it ideal for cost-sensitive, space-constrained status lighting where simplicity and reliability outweigh channel expansion needs.
Availability
PCA9633DP1,118 is available at Aetrix Electronics and suitable for RGB status indicators, keypad backlights, LED display segments, and low-power status panels requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for PCA9633DP1,118 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The PCA9633 family was designed specifically for efficient, software-programmable RGBA LED control in space-constrained portable electronics-prioritizing low pin count, integrated timing, and I²C bus scalability without external components.
FAQ
What is the I²C slave address of the PCA9633DP1,118?
The PCA9633DP1,118 has a fixed I²C slave address of 0xC0 (R/W = 0), corresponding to binary 1100000. Unlike 10- and 16-pin variants, it lacks hardware address pins and does not support address programming-ensuring deterministic addressing in multi-device systems without conflict risk.
Does the PCA9633DP1,118 support external PWM dimming via an OE pin?
No. The PCA9633DP1,118 is the 8-pin TSSOP version and does not include an Output Enable (OE) pin. OE functionality is exclusive to the 16-pin variants (e.g., PCA9633D16, PCA9633PW). Dimming and blinking must be performed entirely through its internal I²C-controlled PWM registers.
Can the PCA9633DP1,118 drive LEDs directly without external current-limiting resistors?
No. While the PCA9633DP1,118 provides 25 mA sink capability per output and is 5.5 V tolerant, it does not regulate current. External series resistors are mandatory to set LED forward current and prevent thermal overstress-especially critical when operating near 25 mA limits at elevated temperatures.
What is the minimum supply voltage required for full functionality of the PCA9633DP1,118?
The PCA9633DP1,118 operates down to 2.3 V, but full 25 mA output sink capability is only guaranteed at VDD ≥ 3.0 V. At 2.3 V, output drive strength degrades; for reliable 25 mA operation with standard red/green/blue LEDs, use VDD ≥ 3.3 V with appropriate derating per temperature.
How does the PCA9633DP1,118 handle power-up initialization?
On power-up, the PCA9633DP1,118 executes an internal power-on reset (POR): all registers initialize to default values-including MODE1 (ALLCALL=1, SLEEP=0), MODE2 (OUTDRV=1, OCH=0), PWMx=0x00, GRPPWM=0xFF, LEDOUT=0x00-resulting in all LED outputs disabled (off state) and ready for I²C configuration.
PCA9633DP1,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Power Switch
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 4
- Voltage - Supply (Min):
- 2.3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 5.5V
- Current - Output / Channel:
- 25mA
- Frequency:
- -
- Dimming:
- I2C
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
PCA9633DP1,118 FAQ
1.How can I place an order for PCA9633DP1,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA9633DP1,118 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 PCA9633DP1,118 reliable?
The price and inventory of PCA9633DP1,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA9633DP1,118 is usually 5 days.
3.What payment methods are accepted for PCA9633DP1,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA9633DP1,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA9633DP1,118?
PCA9633DP1,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA9633DP1,118 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 PCA9633DP1,118?
For technical support, including PCA9633DP1,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA9633DP1,118 requirements.
6.How does Aetrix verify that PCA9633DP1,118 is sourced from the original manufacturer or authorized distributors?
All PCA9633DP1,118 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 PCA9633DP1,118 meets industry standards.
7.What is the process for return or replacement of PCA9633DP1,118?
All PCA9633DP1,118 units undergo pre-shipment inspection (PSI). If there is an issue with PCA9633DP1,118, 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 PCA9633DP1,118 part is unused and in its original packaging.
Return procedure for PCA9633DP1,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCA9633DP1,118 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
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
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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