Analog Devices Inc. ADP1650ACBZ-R7

Overview

ADP1650ACBZ-R7 from Analog Devices is a 1.5 A I²C-programmable white LED flash driver with integrated 3 MHz synchronous boost converter, ±7% LED current accuracy at 700–1100 mA, and WLCSP-12 package (2 mm × 1.5 mm). It delivers high-efficiency flash illumination for smartphone camera modules under 2.7–5.0 V input, enabling low-light image capture with thermal protection and TxMASK-based PA burst coordination.

For engineers reviewing the ADP1650ACBZ-R7 datasheet, ADP1650ACBZ-R7 pinout, ADP1650ACBZ-R7 application, or ADP1650ACBZ-R7 equivalent, this page provides verified functional context, validated WLCSP pin mapping, confirmed flash/torch mode timing and current programming, and real-world alternative selection guidance for mobile imaging power management.

Technical Context

The ADP1650ACBZ-R7 integrates a programmable 3 MHz (or 1.5 MHz) synchronous boost converter with integrated nFET/pFET switches (60 mΩ/50 mΩ in WLCSP), a 1500 mA LED current source with cathode-grounding topology, and dual-mode I²C interface supporting register readback of LED VF, die temperature, and fault status. Its pass-through mode activates when VIN exceeds LED forward voltage plus headroom (290 mV at 1200 mA), reducing switching loss.

It implements two independent TxMASK inputs (GPIO1/GPIO2) to dynamically scale flash current and battery draw during RF power amplifier bursts, and features a 4-bit ADC with ±1 LSB error in external voltage mode and ±1.5 LSB over −40°C to +125°C for LED VF and thermal monitoring - all operating across full junction temperature range (−40°C to +125°C).

Key Specifications

Pinout & Package

ADP1650ACBZ-R7 uses a 12-ball Wafer-Level Chip-Scale Package (WLCSP) with 0.5 mm ball pitch. The exposed die pad must be connected to PGND for thermal and electrical integrity. Pin functions are defined per JEDEC-standard top-view ball map (ball side down).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LED flash driver applications.

Compared with LM3644TME/NOPB and MAX77693EWL+T, ADP1650ACBZ-R7 uniquely combines 1.5 A flash drive, integrated 4-bit ADC for LED VF/die temperature, dual TxMASK inputs, and 3 MHz boost in a 2 mm × 1.5 mm WLCSP - making it optimal for thermally sensitive, space-constrained smartphone camera modules requiring autonomous flash calibration.

Availability

ADP1650ACBZ-R7 is available at Aetrix Electronics and suitable for smartphone camera modules, digital still cameras, and portable camcorders requiring stable component supply, long-term lifecycle support, and traceable sourcing for consumer electronics production.

Supply support for ADP1650ACBZ-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, communications, and industrial markets since 1965.

The ADP1650ACBZ-R7 belongs to Analog Devices' mobile power management product line, designed specifically for high-efficiency, thermally robust LED flash driving in space- and battery-constrained handheld imaging devices.

FAQ

What is the maximum flash duration supported by the ADP1650ACBZ-R7?

The ADP1650ACBZ-R7 supports programmable flash timing up to 1600 ms via the FL_TIM bits in Register 0x02. This maximum duration is guaranteed across the full operating temperature range (−40°C to +125°C) and input voltage range (2.7 V to 5.0 V), with ±7% timer accuracy. The device enforces timeout protection to disable flash if STROBE remains asserted beyond the programmed interval.

Does the ADP1650ACBZ-R7 support both hardware and software strobe triggering?

Yes, the ADP1650ACBZ-R7 supports both hardware and software strobe triggering. Hardware strobe is enabled via the STROBE pin (level- or edge-sensitive, configurable via STR_LV bit), while software strobe is activated by setting STR_MODE = 0 in Register 0x04 and issuing an I²C command. Both methods initiate flash mode with identical current and timing behavior, ensuring flexibility for different image sensor interfaces.

How does the ADP1650ACBZ-R7 handle low battery conditions during flash operation?

The ADP1650ACBZ-R7 implements Low VBAT Mode, which automatically reduces LED current when input voltage falls below a threshold (programmable with 3.2% error and 50 mV hysteresis). This foldback prevents excessive battery droop and maintains system stability during flash events under weak battery conditions, without requiring host processor intervention.

Can the ADP1650ACBZ-R7 drive multiple LEDs simultaneously?

No, the ADP1650ACBZ-R7 is designed exclusively for driving a single high-power white LED. Its 1500 mA current source, LED_OUT pin architecture, and thermal design are optimized for one LED with cathode grounding. Driving multiple LEDs would exceed its current capability, violate thermal limits, and compromise accuracy - use dedicated multi-channel drivers like the ADP1649 for such configurations.

What safety protections are built into the ADP1650ACBZ-R7?

The ADP1650ACBZ-R7 includes thermal shutdown (150°C rising), LED short/open-circuit detection (1.2 V / 2.45 V thresholds), inductor fault detection, overvoltage protection (5.15–5.9 V), timeout fault, and input undervoltage lockout (2.3–2.5 V). All faults trigger automatic shutdown and can be read back via I²C status registers, enabling robust system-level failure handling in mobile imaging applications.