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Analog Devices Inc. LTC4096XEDD#TRPBF
- Part No.:
- LTC4096XEDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Battery Chargers
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC4096XEDD#TRPBF.pdf
- Description:
- IC BATT CHG LI-ION 1CELL 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,095
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Product details
Overview
LTC4096XEDD#TRPBF from Analog Devices (formerly Linear Technology) is a dual-input standalone linear Li-ion battery charger IC for single-cell 4.2V batteries, supporting simultaneous wall adapter (up to 1.2A) and USB (up to 1A) inputs with automatic source selection, ±0.6% float voltage accuracy, and thermal regulation at 115°C junction limit. It targets portable power management in space-constrained handheld devices.
For engineers reviewing the LTC4096XEDD#TRPBF datasheet, LTC4096XEDD#TRPBF pinout, LTC4096XEDD#TRPBF application, or LTC4096XEDD#TRPBF equivalent, key selection criteria include independent DC/USB current programming via external resistors, 10-lead DFN (3mm × 3mm) thermal package, absence of trickle charge (vs. LTC4096), and PWR output with 120mA drive capability for system power monitoring.
Technical Context
The LTC4096XEDD#TRPBF implements a constant-current/constant-voltage (CC/CV) charging algorithm with two internal P-channel MOSFETs - one for DCIN-to-BAT (RON = 420mΩ typ), another for USBIN-to-BAT (RON = 470mΩ typ). Input priority is fixed: DCIN supersedes USBIN when both are valid (VDCIN > 4.2V and VDCIN > VBAT + 30mV).
Thermal regulation actively reduces charge current when die temperature approaches 115°C, while a safety shutdown triggers at ~150°C. Unlike the LTC4096, the LTC4096X omits trickle charge functionality and uses identical termination logic (ITERM pin, 3ms filter) but lacks low-battery pre-conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Float Voltage | 4.2V ±0.6% - ensures precise full-charge termination for Li-ion cells without overvoltage risk. |
| Max DCIN Charge Current | 1.2A - programmable via IDC pin resistor; enables fast charging from wall adapters. |
| Max USBIN Charge Current | 1A - independently programmable via IUSB pin resistor; supports USB-compliant current limits. |
| Thermal Regulation Threshold | 115°C - dynamically scales charge current to prevent overheating on compact PCBs. |
| Shutdown Supply Current | 20µA (DCIN), 10µA (USBIN) - ultra-low quiescent draw preserves battery during standby. |
| Power Present Output Drive | 120mA - directly powers status LEDs or microcontroller wake-up circuits without external drivers. |
| Operating Temperature | –40°C to +85°C - validated for industrial and consumer portable environments. |
Pinout & Package
Package: 10-lead (3mm × 3mm) DFN with exposed thermal pad (Pin 11 = GND), 0.75mm profile, optimized for high-power density and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DCIN (Pin 1) | Wall adapter input supply | Accepts 4.25–5.5V; powers charger and enables priority source selection; max 1.2A input. |
| USBIN (Pin 2) | USB input supply | Accepts 4.25–5.5V; secondary power source; max 1A input; lower priority than DCIN. |
| PWR (Pin 3) | Power present output | Open-drain P-channel switch; connects to active input (DCIN or USBIN); sources up to 120mA. |
| CHRG (Pin 4) | Charge status indicator | Open-drain N-channel output; pulled low during charging; high-Z at termination or shutdown. |
| SUSP (Pin 5) | Charge enable control | Logic low enables charging; internal 3.4MΩ pulldown defaults to active; high = shutdown mode. |
| ITERM (Pin 6) | Termination current threshold | Resistor-to-GND sets termination threshold (e.g., 2kΩ = 50mA); comparator filters transients (3ms). |
| IUSB (Pin 7) | USB charge current program | Servos to 1V in CC mode; RIUSB sets USB current (IBAT = 1000 × VIUSB / RIUSB). |
| GND (Pin 8) | Ground reference | Primary ground return; connects to exposed pad (Pin 11) for thermal and electrical integrity. |
| IDC (Pin 9) | DC charge current program | Servos to 1V in CC mode; RIDC sets wall adapter current (IBAT = 1000 × VIDC / RIDC). |
| BAT (Pin 10) | Battery output | Delivers regulated charge current; holds 4.2V float; requires no external blocking diode or sense resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent input programming | Separate RIDC and RIUSB resistors allow distinct wall adapter (up to 1.2A) and USB (up to 1A) charge currents. |
| No external sense resistor or diode | Integrated MOSFET architecture eliminates need for external current-sense resistor or reverse-blocking diode. |
| Thermal regulation with 115°C limit | Automatically reduces charge current before die exceeds safe operating temperature - enables robust layout without derating. |
| 120mA PWR output with short-circuit protection | Directly drives status indicators or MCU wake lines; includes built-in fault protection without external components. |
| Ultra-low shutdown current | 20µA on DCIN and 10µA on USBIN (when DCIN inactive) minimizes parasitic drain during storage or transport. |
Applications
| Smart Wearables | Portable Medical Monitors |
|---|---|
|
Use Scenario: Compact wearable device with dual power options (USB for desktop sync, wall adapter for overnight charging). IC Role / Device Role / Timing Role: Standalone battery charger managing Li-ion cell health, input arbitration, and system power availability signaling via PWR pin. Use Value: Eliminates need for external power-path controllers; 3mm × 3mm DFN fits tight form factors; thermal regulation prevents skin-temperature rise during charging. |
Use Scenario: Battery-powered vital sign monitor requiring reliable charge from clinic USB ports or field wall adapters. IC Role / Device Role / Timing Role: Primary charge controller ensuring safe, accurate 4.2V float voltage and automatic recharge at 4.15V to maintain readiness. Use Value: ±0.6% float voltage tolerance meets medical-grade battery longevity requirements; CHRG pin provides unambiguous charge status to host MCU. |
| Wireless Headphones | Rugged Handheld Scanners |
|
Use Scenario: True wireless stereo earbuds case with USB-C input and proprietary wall adapter support. IC Role / Device Role / Timing Role: Dual-input charger enabling flexible user charging habits while maintaining strict Li-ion safety margins. Use Value: Automatic DCIN/USBIN selection avoids manual switching; 10µA USBIN shutdown current extends shelf life when stored with cable attached. |
Use Scenario: Industrial barcode scanner used in warehouses with variable ambient temperatures (–20°C to 60°C). IC Role / Device Role / Timing Role: Robust charging interface tolerant of voltage fluctuations and thermal stress during continuous operation. Use Value: Thermal regulation sustains usable charge rate up to 60°C ambient; 420mΩ/470mΩ FET RON minimizes voltage drop across inputs under load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-input Li-ion charging applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ24075RGER | Single-input (USB-only), no DCIN path; 1.5A max charge current; integrated LDO for system power. | Lacks wall adapter support; suitable only where USB is sole power source. | Select when design uses USB exclusively and requires system power rail from charger. |
| LTC4096EDD#TRPBF | Includes trickle charge (VBAT < 2.9V), same pinout and package; otherwise identical feature set and specs. | Required for deeply discharged battery recovery in field-deployed devices. | Choose when battery may sit at <2.9V for extended periods and pre-charge conditioning is mandatory. |
Compared with BQ24075RGER, the LTC4096XEDD#TRPBF adds dual-input flexibility and thermal regulation but omits system power delivery; compared with LTC4096EDD#TRPBF, it removes trickle charge to simplify firmware and reduce BOM count where deep discharge is unlikely.
Availability
LTC4096XEDD#TRPBF is available at Aetrix Electronics and suitable for portable medical monitors, wireless headphones, rugged handheld scanners, and smart wearables requiring stable component supply, long-term lifecycle support, and consistent thermal performance across production batches.
Supply support for LTC4096XEDD#TRPBF 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 (acquired Linear Technology in 2017) designs precision analog, mixed-signal, and power management ICs for high-reliability applications across industrial, automotive, and communications markets.
The LTC4096XEDD#TRPBF belongs to Linear's legacy battery management portfolio, engineered specifically for compact, thermally constrained portable electronics needing autonomous dual-input Li-ion charging without microcontroller intervention.
FAQ
What is the key functional difference between LTC4096XEDD#TRPBF and LTC4096EDD#TRPBF?
The LTC4096XEDD#TRPBF omits the trickle charge feature present in the LTC4096EDD#TRPBF. When BAT voltage falls below 2.9V, the LTC4096EDD#TRPBF delivers 1/10th of programmed current to precondition the cell; the LTC4096XEDD#TRPBF skips this step and enters constant-current mode directly. This simplifies use cases where batteries are not expected to reach deep discharge states.
How does LTC4096XEDD#TRPBF handle input source arbitration between DCIN and USBIN?
The LTC4096XEDD#TRPBF automatically selects DCIN over USBIN if both inputs meet validity criteria: VDCIN > 4.2V and VDCIN > VBAT + 30mV. If DCIN drops below either threshold, it switches to USBIN provided VUSBIN > 4.0V and VUSBIN > VBAT + 30mV. The PWR pin reflects the active source voltage minus its respective FET RON drop.
Can LTC4096XEDD#TRPBF be used without external current-sense resistors?
Yes. The LTC4096XEDD#TRPBF integrates P-channel MOSFET pass elements and uses servo-controlled IDC/IUSB pins (regulated to 1V) to derive charge current - eliminating need for external sense resistors or blocking diodes. Only programming resistors (RIDC, RIUSB, RITERM) and input/output capacitors are required for basic operation.
What thermal design considerations apply to LTC4096XEDD#TRPBF?
The exposed pad (Pin 11) must be soldered to a minimum 2500mm² copper area on the PCB to achieve θJA ≈ 40°C/W. Without proper thermal pad connection, junction temperature rise increases significantly, triggering earlier thermal regulation. Layout must avoid thermal isolation of the pad and ensure solid GND plane connectivity.
Does LTC4096XEDD#TRPBF support automatic recharge after charge termination?
Yes. After charge termination, the LTC4096XEDD#TRPBF monitors BAT voltage with a 1.6ms filtered comparator. When voltage drops below 4.15V (≈80–90% SOC), it automatically restarts the CC/CV cycle. This maintains battery readiness without host MCU involvement and is identical in behavior to the LTC4096EDD#TRPBF.
LTC4096XEDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current
- Fault Protection:
- -
- Charge Current - Max:
- 1.2A
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 5.5V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC4096XEDD#TRPBF FAQ
1.How can I place an order for LTC4096XEDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4096XEDD#TRPBF 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 LTC4096XEDD#TRPBF reliable?
The price and inventory of LTC4096XEDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4096XEDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC4096XEDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4096XEDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4096XEDD#TRPBF?
LTC4096XEDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4096XEDD#TRPBF 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 LTC4096XEDD#TRPBF?
For technical support, including LTC4096XEDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4096XEDD#TRPBF requirements.
6.How does Aetrix verify that LTC4096XEDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC4096XEDD#TRPBF 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 LTC4096XEDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC4096XEDD#TRPBF?
All LTC4096XEDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4096XEDD#TRPBF, 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 LTC4096XEDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC4096XEDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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