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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Battery Chargers

Diodes Incorporated AUR9807VIGD

Name: AUR9807VIGD
Brand: Diodes Incorporated
SKU: AUR9807VIGD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUR9807VIGD

Manufacturer:: Diodes Incorporated

Category:: Battery Chargers

Package:: 20-WFQFN Exposed Pad

Datasheet:: AUR9807VIGD.pdf

Description:: IC BATT CHG LI-ION 1CELL 20QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AUR9807VIGD from Diodes Incorporated is a single-cell Li-ion battery charger IC with integrated Active Power Management (APM), designed for simultaneous system power delivery and battery charging in portable electronics. It supports up to 1.5A fast charge current (set via ISET1 resistor), regulates system output to 5V nominal (CV mode), features 40mΩ BAT-to-OUT power path, and operates across -40°C to +125°C junction temperature range - deployed in mobile phones and digital cameras.

For engineers reviewing the AUR9807VIGD datasheet, AUR9807VIGD pinout, AUR9807VIGD application, or AUR9807VIGD equivalent, key selection criteria include APM set-point voltage (2.6–3.8V), thermal regulation at 110°C, USB/AC mode selection via MODE pin, and 5V system output regulation accuracy of ±0.5% at 25°C.

Technical Context

The AUR9807VIGD implements adaptive power source selection between AC adapter and battery, prioritizing system load over charging current when input voltage sags or load increases. Its APM function dynamically reduces charge current to maintain VOUT ≥ VAPM-REG (programmable via APM pin), using a 95–105μA current source and 1.139–1.162 scaling factor.

Charging control includes precharge (2.9–3.1V BAT threshold, 10–150mA), constant-current (up to 1.5A), and constant-voltage (4.2V ±0.5%) phases, with termination at 10–150mA via ITERM detection. Thermal regulation limits junction temperature to 110°C (TJ(REG)), while shutdown occurs at 150°C (TSHTDWN) with 25°C hysteresis.

Key Specifications

Parameter	Value and Actual Design Meaning
System Output Voltage	5.0V ±0.1V (regulated, CV mode; requires VIN > 5V + VDO)
Max Charging Current	1.5A (set by external ISET1 resistor; halved to 750mA when ISET2 = Low)
APM Set-Point Range	2.6V–3.8V (defines minimum regulated VOUT before APM activation)
Battery Charge Voltage	4.2V ±0.5% (tight regulation ensures safe Li-ion full-charge termination)
Power Path Resistance	40mΩ (BAT-to-OUT path enables efficient battery-supplement mode under load)
Thermal Regulation Threshold	110°C (reduces charge current to prevent overheating; 150°C shutdown)
Input Voltage Range	4.35V–5.5V (supports standard 5V USB/AC adapters with UVLO at 2.5V)

Pinout & Package

Package: QFN-4.5×3.5-20 with exposed thermal pad.

Pin/Terminal	Circuit Role	Design Meaning
1 VREF	Internal reference output	3.3V ±5% reference for internal circuitry; 0.1μF capacitor recommended
2 STAT1 / 3 STAT2	Charge status flags	Open-drain outputs indicating charge phase (precharge, CC, CV, done, fault)
4 IN	Main input supply	Accepts 4.35–5.5V adapter/USB input; powers system and charges battery
5,6 BAT	Battery connection	Single bidirectional node for charging (IN→BAT) and discharging (BAT→OUT)
7 ISET2	Current mode select	Configures USB total current limit (450mA/90mA) and AC charge rate (full/half)
8 MODE	Power source mode	High = AC adapter mode; Low = USB mode; sets internal current-limiting behavior
9 CE	Chip enable	Active-high; disables all functions and reduces quiescent current to <200μA
10 ISET1	Charge current set	Voltage input (2.4–2.6V) sets max charge current via KSET factor (375–450 10mA/V)
11 SYSOFF	System-battery disconnect	Opens internal FET to isolate battery from OUT during shutdown or fault
12 TS	Temperature sense	Monitors NTC thermistor; triggers thermal shutdown if VTS < 0.5V (high temp) or >2.5V (low temp)
13 APM	APM set-point input	Programs VAPM-REG = VAPM-SET × 1.15; no external capacitor required
14 TMR	Safety timer control	External resistor sets charge timeout (tCHG = KTMR × RTMR); tie to VREF to disable
15–17 OUT	System power output	Three parallel pins deliver regulated 5V system supply; low-dropout design
18 /PG	Power-good flag	Open-drain output pulled low when VOUT is within regulation tolerance
19,20 GND	Ground reference	Common return for all circuits; exposed pad must be soldered for thermal performance

Key Features

Feature	Design Value
Active Power Management (APM)	Maintains system output voltage under heavy load by dynamically reducing charge current - eliminates battery cycling during high-power operation
Automatic Power Source Selection	Seamlessly switches between AC adapter and battery without external circuitry; sleep current <5μA when only battery active
40mΩ BAT-to-OUT Power Path	Enables efficient battery-supplement mode with minimal voltage drop (<100mV at 1A), extending runtime during adapter brownout
Integrated Thermal Regulation	Reduces charge current at 110°C (TJ(REG)) and shuts down at 150°C (TSHTDWN) with 25°C hysteresis - protects battery and IC reliability
Programmable Safety Timer	External resistor on TMR pin sets charge timeout (0.313–0.414 s/Ω); disable by tying to VREF - prevents overcharge in fault conditions

Applications

Mobile Phones

Digital Cameras

Use Scenario: Compact smartphone with dual power sources (USB-C and wireless charging receiver) requiring uninterrupted system operation during battery charging.

IC Role / Device Role / Timing Role: Charger IC managing simultaneous 5V system rail regulation and 4.2V Li-ion charging with priority to system load via APM.

Use Value: Prevents system brownout during camera flash or video encoding by throttling charge current instead of collapsing VOUT.

Use Scenario: DSLR-style digital camera with high-current image sensor and LCD display powered from a single-cell Li-ion pack.

IC Role / Device Role / Timing Role: Dual-role power manager delivering stable 5V to sensor/LCD while charging battery at up to 1.5A from USB or wall adapter.

Use Value: Enables rapid battery recharge between photo bursts without interrupting preview or recording due to APM's real-time current redistribution.

MP3 Players

Solar-Powered Instruments

Use Scenario: Portable audio player with USB charging and extended playback time, requiring ultra-low quiescent current in battery-only mode.

IC Role / Device Role / Timing Role: Low-power charger IC providing <5μA sleep current and 40mΩ BAT-to-OUT path for efficient discharge.

Use Value: Extends battery life by >15% versus conventional chargers due to minimized path losses and intelligent supplement-mode entry/exit thresholds.

Use Scenario: Field-deployed environmental sensor powered by small solar panel and Li-ion buffer battery, subject to variable input voltage.

IC Role / Device Role / Timing Role: Adaptive charger IC accepting 4.35–5.5V solar input, regulating 5V system rail, and charging battery without external MPPT controller.

Use Value: Maintains system uptime during partial cloud cover by activating APM at VOUT drop to 4.9V - drawing supplemental current from battery without full discharge.

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-cell Li-ion charger with system power management applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BQ24075RGTR	Fixed 4.2V charge voltage; no programmable APM set-point; 1.2A max charge; uses external MOSFET for BAT-to-OUT path (higher RDS(on))	Lacks dynamic APM voltage regulation - relies on fixed VOUT dropout triggering battery supplement	Prefer for cost-sensitive designs where 5V system rail is not required and APM fine-tuning is unnecessary
TP4056	Standalone linear charger only; no system power path, no APM, no input source selection; 1A max charge; no thermal regulation beyond die temp shutdown	Requires separate LDO or DC-DC for system rail; cannot power system while charging	Only suitable for simple battery-only devices without concurrent system operation requirements

Compared with BQ24075RGTR and TP4056, the AUR9807VIGD uniquely integrates programmable APM, 5V system regulation, and 40mΩ BAT-to-OUT path - enabling true seamless power handoff and extended runtime in resource-constrained portable systems.

Availability

AUR9807VIGD is available at Aetrix Electronics and suitable for mobile phones, digital cameras, and solar-powered instruments requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle support.

Supply support for AUR9807VIGD 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.

The AUR9807 belongs to Diodes' battery management IC product line, engineered specifically for portable electronics needing concurrent charging and system power delivery with minimal external components and robust thermal safety.

FAQ

What is the purpose of the APM pin on the AUR9807VIGD?

The APM pin sets the Active Power Management regulation threshold (VAPM-REG) by applying a voltage (2.6–3.8V) that is scaled by 1.15 to define the minimum system output voltage before APM activates. When VOUT drops to this level, the IC reduces charging current to prioritize system load - preventing brownout without external intervention. No capacitor is needed on this pin.

How does the AUR9807VIGD handle power source transitions between USB and AC adapter?

The MODE pin selects between USB (Low) and AC (High) modes. In USB mode, total current is limited to 450mA (ISET2=High) or 90mA (ISET2=Low); in AC mode, current limiting occurs adaptively via APM. The IC automatically switches to battery power when input falls below UVLO (2.5V) and resumes charging when input returns - with <5μA sleep current ensuring minimal battery drain.

Can the AUR9807VIGD safely charge a Li-ion battery while powering a 5V system load exceeding 1.5A?

Yes - the AUR9807VIGD supports up to 4A total output current (IOUT) across its three OUT pins. Under heavy system load, APM reduces charging current to maintain VOUT ≥ VAPM-REG. If load exceeds adapter capability, the IC enters battery-supplement mode (VOUT drops to VBAT – 60mV), allowing the battery to contribute current through the 40mΩ path - all while monitoring temperature and voltage for safety.

What thermal protection mechanisms does the AUR9807VIGD implement during charging?

The AUR9807VIGD features two-tier thermal protection: junction temperature regulation at 110°C (TJ(REG)) reduces charge current gradually, and thermal shutdown at 150°C (TSHTDWN) disables charging entirely. Temperature sensing occurs via the TS pin connected to an NTC thermistor, with fault thresholds at VTS < 0.5V (over-temp) or >2.5V (under-temp). Hysteresis of 25°C prevents oscillation near trip points.

AUR9807VIGD Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 20-WFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Battery Chemistry:: Lithium Ion

Number of Cells:: 1

Current - Charging:: Constant - Programmable

Programmable Features:: Timer

Fault Protection:: Over Temperature, Over Voltage, Reverse Current, Short Circuit

Charge Current - Max:: 1.5A

Battery Pack Voltage:: 4.2V

Voltage - Supply (Max):: 5.5V

Interface:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-QFN (4.5x3.5)

AUR9807VIGD FAQ

1.How can I place an order for AUR9807VIGD through Aetrix?

Please submit a Request for Quotation (RFQ) for AUR9807VIGD 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 AUR9807VIGD reliable?

The price and inventory of AUR9807VIGD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUR9807VIGD is usually 5 days.

3.What payment methods are accepted for AUR9807VIGD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUR9807VIGD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUR9807VIGD?

AUR9807VIGD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUR9807VIGD 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 AUR9807VIGD?

For technical support, including AUR9807VIGD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUR9807VIGD requirements.

6.How does Aetrix verify that AUR9807VIGD is sourced from the original manufacturer or authorized distributors?

All AUR9807VIGD 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 AUR9807VIGD meets industry standards.

7.What is the process for return or replacement of AUR9807VIGD?

All AUR9807VIGD units undergo pre-shipment inspection (PSI). If there is an issue with AUR9807VIGD, 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 AUR9807VIGD part is unused and in its original packaging.

Return procedure for AUR9807VIGD:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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