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Analog Devices Inc. ADP5091ACPZ-2-R7
- Part No.:
- ADP5091ACPZ-2-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Battery Chargers
- Package:
- 24-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADP5091ACPZ-2-R7.pdf
- Description:
- IC BATT CHG MULTI-CHEM 24LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,217
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Product details
Overview
ADP5091ACPZ-2-R7 from Analog Devices is an ultralow power energy harvesting PMU with integrated cold-start boost regulator, MPPT control, and dual-path power management for photovoltaic and thermoelectric sources. It delivers 150 mA regulated output (1.5 V–3.6 V), operates from 0.08 V input after cold start, and features 510 nA operating quiescent current on the SYS pin - enabling self-powered wireless sensor nodes in low-light or low-ΔT environments.
For engineers reviewing the ADP5091ACPZ-2-R7 datasheet, ADP5091ACPZ-2-R7 pinout, ADP5091ACPZ-2-R7 application, or ADP5091ACPZ-2-R7 equivalent, this page provides verified functional context, validated pin roles, confirmed energy harvesting use cases, and two technically documented alternative parts for battery-free IoT system design.
Technical Context
The ADP5091ACPZ-2-R7 integrates a cold-start charge pump (functional down to 380 mV VIN), a synchronous boost regulator with dynamic/no-sensing MPPT, and a hybrid REG_OUT stage that auto-switches between hysteresis-mode boost and LDO based on load and SYS voltage. Its MPPT controller maintains fixed input voltage ripple by adjusting duty cycle, while the MINOP pin sets programmable shutdown threshold via external resistor.
It implements three independent power paths: primary energy harvester → SYS/BAT, rechargeable storage → SYS, and optional primary-cell BACK_UP → SYS - all managed by analog comparators with programmable thresholds (VBAT_TERM: 2.2–5.2 V; VSETBK: 2.0–VBAT_TERM) and hysteresis. The DIS_SW pin enables RF-friendly temporary boost disable with 1 µs delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.08 V to 3.3 V (post-cold-start); cold start initiates at ≥380 mV VIN - enables operation from weak PV/TEG sources before system voltage builds. |
| Quiescent Current (SYS) | 510 nA typical (VIN > VCBP ≥ VMINOP) - sustains multi-year battery-free operation in ultra-low-duty-cycle sensor wake-ups. |
| Regulated Output | 150 mA at 1.5 V–3.6 V (programmable via VID or resistor divider) - powers MCUs, radios, and sensors without external LDO. |
| MPPT Modes | Dynamic sensing (VIN OCV-based) or no-sensing (fixed ratio) - extracts maximum harvestable power across varying light/temperature conditions. |
| Battery Charging Threshold | Programmable 2.2 V–5.2 V termination (VBAT_TERM) with 3.1% hysteresis - supports Li-ion, thin-film, and supercapacitor storage with overcharge protection. |
| Cold Start Minimum Power | 6 µW at VIN = 380 mV - starts from dim indoor light or micro-ΔT TEGs without external bias. |
| Operating Temperature | −40°C to +125°C - qualified for industrial monitoring and automotive under-hood energy harvesting. |
Pinout & Package
The ADP5091ACPZ-2-R7 is housed in a 24-lead 4 mm × 4 mm LFCSP package with exposed thermal pad (EPAD) requiring connection to AGND. Pin functions are electrically and functionally distinct per the ADP5091-specific configuration (Figure 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Energy harvester input | Accepts 0.08–3.3 V DC from PV/TEG; requires ≥10 µF local capacitance to PGND for stability during cold start and PFM operation. |
| SYS | Main system supply output | Delivers regulated power to MCU/sensor load; monitored by PGOOD and used as reference for BAT charging and MPPT control. |
| BAT | Rechargeable storage node | Connects to Li-ion, supercap, or thin-film battery; internal switches enable charge termination and discharge cutoff per VBAT_TERM/VSETSD settings. |
| BACK_UP | Primary cell backup input | Provides failover power when SYS/BAT fall below VSETBK; leakage <40 nA ensures minimal drain on primary cells. |
| MPPT | Maximum power point tracking input | Configures MPPT setpoint via resistor divider (dynamic mode) or fixed reference (no-sensing mode); draws 2.0 µA bias current. |
| MINOP | Minimum operating threshold input | Defines cold-start exit and boost enable point; floating = no-sensing MPPT; grounded = disable; resistor-to-AGND sets threshold (e.g., 1.5 V). |
| DIS_SW | Boost disable control | Active-low signal (≤0.5 V) halts switching within 1 µs - prevents RF interference during wireless transmission. |
| LLD | Low-light density indicator | Open-drain output pulled high when MINOP > CBP - signals microcontroller of insufficient ambient energy for sustained operation. |
| REG_OUT | Secondary regulated output | 150 mA programmable rail (1.5–3.6 V); auto-selects boost/LDO mode to optimize efficiency from 10 µA to 150 mA loads. |
| PGOOD | System power-good flag | Open-drain output asserting high when SYS ≥ VSYS_PG (set by SETPG/SETHYST); drives MCU reset or enable logic. |
Key Features
| Feature | Design Value |
|---|---|
| Cold-start charge pump | Starts regulation at 380 mV VIN using only harvested energy - eliminates need for external bias or pre-charged capacitor. |
| Dynamic MPPT sensing | Tracks open-circuit voltage (OCV) of PV/TEG every 16 sec (factory default) to adapt MPPT setpoint - maximizes energy capture under changing conditions. |
| Hysteresis-mode boost regulator | Maintains >70% efficiency at 10 µA load (VIN = 0.5 V) - critical for intermittent, microwatt-level energy sources. |
| Hybrid REG_OUT stage | Auto-switches between boost and LDO modes based on load and SYS voltage - achieves <200 mV dropout at 150 mA while preserving µA-level quiescent current. |
| Triple-source power path | Seamlessly transitions among harvester, rechargeable BAT, and primary BACK_UP - ensures continuous operation during energy droughts. |
| RF-friendly DIS_SW | Stops switching within 1 µs of logic-low assertion - prevents conducted EMI during BLE/Zigbee transmission windows. |
Applications
| Photovoltaic Energy Harvesting | Thermoelectric Generator (TEG) Systems |
|---|---|
|
Use Scenario: Indoor light-powered environmental sensor node harvesting 10–100 µW from amorphous silicon cells. IC Role / Device Role / Timing Role: Primary PMU managing cold start, MPPT, battery charging, and dual-rail power delivery (SYS + REG_OUT). Use Value: Enables 10+ year maintenance-free operation by sustaining 15 µA average system current from sub-100 µW input - verified at 0.2 V VIN, 10 µA IIN. |
Use Scenario: Industrial pipe-monitoring node extracting 50–500 µW from 2–5 °C ΔT across TEG modules. IC Role / Device Role / Timing Role: Ultralow-VIN energy converter with programmable VMINOP to maintain operation during transient thermal dips. Use Value: Cold-start capability at 380 mV and 6 µW allows reliable startup even during brief thermal transients - critical for unattended field deployment. |
| Wireless Sensor Networks (WSN) | Portable Wearable Devices |
|
Use Scenario: LoRaWAN soil moisture sensor transmitting hourly using harvested solar energy stored in a 100 mF supercap. IC Role / Device Role / Timing Role: System power manager coordinating energy storage (BAT), load delivery (SYS), and RF coexistence (DIS_SW). Use Value: DIS_SW pin synchronizes boost disable with radio TX window - reduces conducted noise by >20 dB, improving packet success rate in dense RF environments. |
Use Scenario: Fitness tracker powered by body-heat TEGs and ambient light, requiring stable 2.5 V/100 mA for BLE SoC and display. IC Role / Device Role / Timing Role: Dual-output PMU delivering SYS for MCU and REG_OUT for peripheral rail, with seamless backup switchover. Use Value: Hybrid REG_OUT mode maintains 2.5 V ±3.5% across 10 µA–150 mA loads while consuming only 510 nA quiescent - extends usable runtime per energy harvest cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar energy harvesting PMU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3108EDD#TRPBF | Higher cold-start threshold (20 mV higher), no built-in BACK_UP path, fixed 2.2 V BAT termination. | Lacks primary-cell backup management and programmable VBAT_TERM - suitable for single-storage systems only. | Select when cost sensitivity outweighs backup flexibility and fine-grained battery voltage control. |
| BQ25504RGTT | Lower max output current (100 mA vs. 150 mA), no DIS_SW pin, 1.2 V minimum post-cold-start VIN. | Cannot support RF-coordinated shutdown or high-current peripherals like displays or GPS modules. | Prefer for simpler, lower-power sensor nodes where RF coexistence and >100 mA loads are not required. |
Compared with LTC3108EDD#TRPBF and BQ25504RGTT, the ADP5091ACPZ-2-R7 uniquely combines triple-source power path control, RF-friendly boost disable, and fully programmable battery thresholds - making it optimal for robust, field-deployed energy harvesting systems demanding reliability and design flexibility.
Availability
ADP5091ACPZ-2-R7 is available at Aetrix Electronics and suitable for photovoltaic energy harvesting, thermoelectric generator systems, and wireless sensor networks requiring stable component supply with guaranteed long-term manufacturability.
Supply support for ADP5091ACPZ-2-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 industrial, automotive, communications, and healthcare markets since 1965.
The ADP5091ACPZ-2-R7 belongs to Analog Devices' ultralow-power energy harvesting PMU product line, engineered specifically for battery-free IoT edge devices operating from microwatt-scale ambient sources like indoor light and waste heat.
FAQ
What is the cold-start capability of the ADP5091ACPZ-2-R7?
The ADP5091ACPZ-2-R7 initiates cold start at a minimum input voltage of 380 mV (typical) and requires only 6 µW of input power - enabling reliable startup from weak photovoltaic cells under dim indoor lighting or low-ΔT thermoelectric generators. Once started, it operates continuously down to 0.08 V input.
How does the ADP5091ACPZ-2-R7 implement MPPT control?
The ADP5091ACPZ-2-R7 supports two MPPT modes: dynamic sensing (measuring VIN open-circuit voltage every 16 seconds to adjust the MPPT setpoint) and no-sensing (fixed ratio set by external resistor on MPPT pin). Both modes regulate input voltage ripple to maximize power extraction from variable-output harvesters like PV and TEGs.
Can the ADP5091ACPZ-2-R7 manage multiple energy storage elements simultaneously?
Yes - the ADP5091ACPZ-2-R7 manages three independent power sources: primary harvester (VIN → SYS/BAT), rechargeable storage (BAT → SYS), and optional primary-cell backup (BACK_UP → SYS). Each path has dedicated comparators, thresholds (VBAT_TERM, VSETBK), and hysteresis resistors for autonomous, glitch-free switchover.
What is the purpose of the DIS_SW pin on the ADP5091ACPZ-2-R7?
The DIS_SW pin on the ADP5091ACPZ-2-R7 provides RF-friendly boost regulator disable: asserting a logic-low signal halts switching within 1 µs, eliminating conducted EMI during wireless transmission. This feature is explicitly designed for coexistence with BLE, Zigbee, and Sub-GHz radios in compact IoT nodes.
Does the ADP5091ACPZ-2-R7 support programmable output voltage on REG_OUT?
Yes - the ADP5091ACPZ-2-R7 supports eight discrete REG_OUT voltages (1.5 V to 3.6 V) via the VID pin (tied high/low through resistors), or continuous adjustment using an external resistor divider on REG_FB. Accuracy is ±3.5% across 0–150 mA load, with <200 mV dropout at full load in LDO mode.
ADP5091ACPZ-2-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- -
- Current - Charging:
- -
- Programmable Features:
- Voltage
- Fault Protection:
- Over Current, Over Temperature, Short Circuit
- Charge Current - Max:
- -
- Battery Pack Voltage:
- -
- Voltage - Supply (Max):
- 3.3V
- Interface:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-LFCSP (4x4)
ADP5091ACPZ-2-R7 FAQ
1.How can I place an order for ADP5091ACPZ-2-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP5091ACPZ-2-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 ADP5091ACPZ-2-R7 reliable?
The price and inventory of ADP5091ACPZ-2-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP5091ACPZ-2-R7 is usually 5 days.
3.What payment methods are accepted for ADP5091ACPZ-2-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP5091ACPZ-2-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP5091ACPZ-2-R7?
ADP5091ACPZ-2-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP5091ACPZ-2-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 ADP5091ACPZ-2-R7?
For technical support, including ADP5091ACPZ-2-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP5091ACPZ-2-R7 requirements.
6.How does Aetrix verify that ADP5091ACPZ-2-R7 is sourced from the original manufacturer or authorized distributors?
All ADP5091ACPZ-2-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 ADP5091ACPZ-2-R7 meets industry standards.
7.What is the process for return or replacement of ADP5091ACPZ-2-R7?
All ADP5091ACPZ-2-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP5091ACPZ-2-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 ADP5091ACPZ-2-R7 part is unused and in its original packaging.
Return procedure for ADP5091ACPZ-2-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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