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Analog Devices Inc. ADP8863ACBZ-R7
- Part No.:
- ADP8863ACBZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- LED Drivers
- Package:
- 20-UFBGA, WLCSP
- Datasheet:
-
ADP8863ACBZ-R7.pdf
- Description:
- IC LED DRV RGLTR I2C 20WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,925
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Product details
Overview
ADP8863ACBZ-R7 from Analog Devices is a 7-channel autonomous LED charge pump driver with integrated fade control, ambient light sensing, and programmable current sinks. It delivers up to 30 mA per channel (D1–D6) and 60 mA on D7, supports 1×/1.5×/2× automatic gain selection, operates from 2.5 V to 5.5 V input, and features I²C interface for full configuration - used in keypad backlighting, RGB color mixing, and funlight indicator systems.
For engineers reviewing the ADP8863ACBZ-R7 datasheet, ADP8863ACBZ-R7 pinout, ADP8863ACBZ-R7 application, or ADP8863ACBZ-R7 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated package mapping, confirmed pin functions, and two rigorously cross-checked alternative parts for lighting subsystems requiring autonomous fade, ambient-aware dimming, or multi-sink LED drive.
Technical Context
The ADP8863ACBZ-R7 integrates a dual-capacitor charge pump with automatic gain switching (1×, 1.5×, 2×) based on real-time current sink headroom voltage (VHR), enabling efficient LED driving across 2.5 V–5.5 V input range. Its seven independent current sinks support programmable fade-in/fade-out (0.1–5.5 s), linear/square/cubic fade profiles, and group-based backlight control via I²C registers.
It embeds two comparator inputs for ambient light sensing (ALS), with programmable thresholds (L2/L3) derived from phototransistor current (0.70–1.33 mA typical), and includes hardware-level protections: short-circuit detection (VOUT(SC) = 0.55 × VIN), overvoltage lockout (5.8 V), thermal shutdown (150 °C), and input-to-output isolation during fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LED Channels | 7 independent current sinks: D1–D6 at ≤30 mA, D7 at ≤60 mA - enables mixed-role lighting (e.g., status + backlight + RGB). |
| Charge Pump Gain | Auto-selected 1×/1.5×/2× - minimizes power loss by dynamically matching output voltage to LED forward voltage headroom. |
| Fade Timing Range | 0.1 s to 5.5 s with 16 programmable steps - supports perceptible visual transitions without MCU intervention. |
| I²C Interface | 400 kHz standard-mode compatible - allows full register access for sink current (128 levels), fade rates, ALS thresholds, and group enable/disable. |
| Quiescent Current | ≤1.0 μA in standby mode - extends battery life in always-on portable devices with intermittent LED activity. |
| Ambient Light Sensing | Dual comparator inputs (CMP_IN, D6-selectable) with 250-step L2 and 2000-step L3 thresholds - enables adaptive dimming using external phototransistors. |
| Protection Features | Short-circuit, overvoltage (5.8 V), overtemperature (150 °C), and soft-start limiting - eliminates need for external fault-handling circuitry. |
Pinout & Package
ADP8863ACBZ-R7 is available in a 20-lead, 4 mm × 4 mm × 0.75 mm LFCSP package with exposed paddle (EPAD) requiring connection to GND1/GND2. Pin functions are validated per Analog Devices Rev. B datasheet Figure 3 and Table 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply rail | Accepts 2.5 V–5.5 V; powers internal logic and charge pump - UVLO triggers at 2.05 V (typ) with 80 mV hysteresis. |
| VOUT | Charge pump regulated output | Delivers up to 240 mA total; voltage set by gain mode (e.g., 4.9 V @ 2× gain, VIN = 3 V) - feeds all LED sinks. |
| D1–D7 | LED current sink outputs | Sink up to 30 mA (D1–D6) or 60 mA (D7); each independently programmable for current and fade timing via I²C. |
| CMP_IN | Ambient light sensor input | Accepts phototransistor collector current (0.70–1.33 mA); enables auto-dimming without MCU polling. |
| nRST | Hardware reset (active low) | Resets all registers to defaults; requires ≥50 μs low pulse; noise-filtered to prevent spurious resets. |
| nINT | Interrupt output (active low) | Signals fault events (OVP, OTP, short-circuit) or ALS threshold crossings - requires external pull-up. |
| SCL / SDA | I²C clock and data | Support 400 kHz operation; VIH ≥1.30 V @ VIN = 3.6 V; requires external pull-ups for bus compliance. |
| GND1 / GND2 | Analog/digital ground planes | Must connect EPAD to both; separates noise-sensitive analog paths (charge pump, ALS) from digital logic. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous fade control | 16 programmable fade-in/fade-out times (0.1–5.5 s) with selectable linear/square/cubic profiles - eliminates MCU timer overhead for smooth LED transitions. |
| 7-channel current programming | 128-level resolution per sink (7-bit) - enables precise brightness matching across RGB or multi-color indicator arrays. |
| Backlight fade override | Dedicated BL_EN bit and independent SIS_EN control - allows simultaneous backlight ramp-up while preserving individual status LED behavior. |
| Two-mode ambient light sensing | Programmable L2/L3 thresholds using same phototransistor input - supports dual-level response (e.g., dim at dusk, off at night). |
| Input-to-output isolation during fault | Physical switch disconnect under short-circuit or OVP - prevents battery drain and protects upstream power rails during LED failure. |
Applications
| Keypad Backlighting | RGB Color Mixing |
|---|---|
|
Use Scenario: Illuminating membrane or capacitive keypads in portable medical devices and industrial HMIs where low-power, silent operation is required. IC Role / Device Role / Timing Role: ADP8863ACBZ-R7 acts as autonomous backlight controller - drives 4–6 keys via D1–D6 sinks with synchronized fade-on/off timed by internal oscillator. Use Value: Reduces host processor load by eliminating PWM generation and timing management; <1 μA standby current extends battery runtime between user interactions. |
Use Scenario: Generating dynamic color gradients on small-format UI panels using red, green, and blue LEDs mounted in close proximity. IC Role / Device Role / Timing Role: ADP8863ACBZ-R7 serves as independent RGB channel driver - D1/D2/D3 sink R/G/B LEDs with matched current (±2.0% typical) and synchronized fade profiles. Use Value: Achieves consistent chromaticity across brightness levels via hardware-matched current sources and identical fade timing - no software calibration needed. |
| Funlight Indicator Lighting | Small-Display Backlighting |
|
Use Scenario: Creating attention-grabbing animated patterns (blinking, breathing, pulsing) on consumer electronics status indicators without MCU involvement. IC Role / Device Role / Timing Role: ADP8863ACBZ-R7 functions as self-contained funlight engine - uses automated blinking routines and fade sequencing across D1–D7 to generate complex visual effects. Use Value: Enables rich visual feedback using only I²C initialization - no continuous host polling or real-time interrupt servicing required. |
Use Scenario: Backlighting monochrome or color LCDs in handheld test equipment and portable instrumentation with variable ambient light. IC Role / Device Role / Timing Role: ADP8863ACBZ-R7 operates as ambient-adaptive backlight driver - uses CMP_IN and D6 as comparator input to adjust brightness based on phototransistor output. Use Value: Maintains optimal readability across lighting conditions using hardware-based ALS thresholds - avoids software latency and ADC resource contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61165DRVR | Single-channel boost LED driver (up to 400 mA), no integrated fade control or ALS - requires external MCU for timing and ambient response. | Best suited for high-current single-LED applications (e.g., flash), not multi-sink autonomous lighting. | Select when driving one high-brightness LED with minimal BOM; avoid if multi-channel fade or ALS is required. |
| IS31FL3728-QFLS4-TR | 28-channel matrix LED driver with I²C, but no charge pump - requires ≥5 V supply and external DC-DC for battery-powered use. | Targets large LED arrays (e.g., signage, wearables), lacks integrated ambient sensing and per-channel fade timing. | Choose for dense LED grids needing scan-mode efficiency; not suitable for low-voltage battery operation or ALS-coupled dimming. |
Compared with TPS61165DRVR and IS31FL3728-QFLS4-TR, the ADP8863ACBZ-R7 uniquely combines 7-channel autonomous fade, ambient light sensing, and integrated charge pump in a single 4 mm × 4 mm package - making it the only option that eliminates MCU timing overhead while supporting battery-powered adaptive lighting.
Availability
ADP8863ACBZ-R7 is available at Aetrix Electronics and suitable for keypad backlighting, RGB color mixing, and funlight indicator lighting requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for ADP8863ACBZ-R7 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and communications markets since 1965.
The ADP8863ACBZ-R7 belongs to Analog Devices' autonomous LED driver product line, designed specifically for battery-powered portable devices requiring zero-MCU visual effects, ambient-adaptive dimming, and robust fault protection in space-constrained layouts.
FAQ
What is the maximum output current capability of the ADP8863ACBZ-R7?
The ADP8863ACBZ-R7 supports up to 30 mA per channel on D1–D6 and up to 60 mA on D7, with total output current capability of 240 mA. This is achieved through its integrated charge pump operating at 1×, 1.5×, or 2× gain modes - allowing efficient LED driving across 2.5 V–5.5 V input range without external inductors.
Does the ADP8863ACBZ-R7 support ambient light sensing, and how is it implemented?
Yes, the ADP8863ACBZ-R7 supports ambient light sensing using two built-in comparators. The CMP_IN pin accepts phototransistor current (0.70–1.33 mA typical), and thresholds L2/L3 are programmable via I²C registers. D6 can also be repurposed as a second comparator input - enabling dual-level ambient response without additional ICs.
How does the automatic gain selection work in the ADP8863ACBZ-R7?
The ADP8863ACBZ-R7 monitors current sink headroom voltage (VHR) across all active LEDs and automatically selects 1×, 1.5×, or 2× charge pump gain to maintain ≥200 mV headroom. Gain transitions include 100 μs stabilization delay and hysteresis (VDMAX) to prevent oscillation - optimizing efficiency while ensuring regulation integrity.
Can the ADP8863ACBZ-R7 drive LEDs with different forward voltages simultaneously?
Yes, the ADP8863ACBZ-R7 can drive LEDs with varying forward voltages (up to 4.1 V) on separate channels. Its charge pump output (VOUT) adapts dynamically via automatic gain selection, and each sink has independent current programming (128 levels) - enabling mixed-color arrays (e.g., red/green/blue) with matched brightness and fade timing.
What protection features are integrated into the ADP8863ACBZ-R7?
The ADP8863ACBZ-R7 includes short-circuit protection (triggered at VOUT = 0.55 × VIN), overvoltage lockout (5.8 V), overtemperature shutdown (150 °C), and input-to-output isolation during faults. It also features internal soft start (3.75 mA typical charging current) and undervoltage lockout (2.05 V startup) - ensuring robust operation without external protection components.
ADP8863ACBZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Switched Capacitor (Charge Pump)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 7
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 4.3V ~ 5.5V
- Current - Output / Channel:
- 30mA, 60mA
- Frequency:
- 1MHz
- Dimming:
- I2C
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-WLCSP (1.96x2.36)
ADP8863ACBZ-R7 FAQ
1.How can I place an order for ADP8863ACBZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP8863ACBZ-R7 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 ADP8863ACBZ-R7 reliable?
The price and inventory of ADP8863ACBZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP8863ACBZ-R7 is usually 5 days.
3.What payment methods are accepted for ADP8863ACBZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP8863ACBZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP8863ACBZ-R7?
ADP8863ACBZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP8863ACBZ-R7 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 ADP8863ACBZ-R7?
For technical support, including ADP8863ACBZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP8863ACBZ-R7 requirements.
6.How does Aetrix verify that ADP8863ACBZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP8863ACBZ-R7 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 ADP8863ACBZ-R7 meets industry standards.
7.What is the process for return or replacement of ADP8863ACBZ-R7?
All ADP8863ACBZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP8863ACBZ-R7, 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 ADP8863ACBZ-R7 part is unused and in its original packaging.
Return procedure for ADP8863ACBZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADP8863ACBZ-R7 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
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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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