My Inquiry
My Account
Analog Devices Inc. LTC4096EDD#TRPBF
- Part No.:
- LTC4096EDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Battery Chargers
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC4096EDD#TRPBF.pdf
- Description:
- IC BATT CHG LI-ION 1CELL 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,866
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC4096EDD#TRPBF from Analog Devices (formerly Linear Technology) is a dual-input standalone linear Li-Ion battery charger IC that autonomously selects between wall adapter (DCIN) and USB (USBIN) power sources to charge a single-cell 4.2V Li-Polymer battery. It delivers up to 800mA from DCIN and 500mA from USBIN, features ±0.6% float voltage accuracy, thermal regulation at 115°C, and shutdown quiescent current of 20µA (DCIN) or 10µA (USBIN). It is used in portable handheld devices requiring automatic input selection and low-power standby.
For engineers reviewing the LTC4096EDD#TRPBF datasheet, LTC4096EDD#TRPBF pinout, LTC4096EDD#TRPBF application, or LTC4096EDD#TRPBF equivalent, key selection criteria include independent DC/USB charge current programming via external resistors, 10-lead DFN package with exposed thermal pad, C/X termination logic, trickle charge support (LTC4096 variant only), and integrated PWR status output with 120mA drive capability.
Technical Context
The LTC4096EDD#TRPBF implements a constant-current/constant-voltage (CC/CV) charging algorithm with two independent internal P-channel MOSFETs - one for DCIN-to-BAT path (RON = 420mΩ), another for USBIN-to-BAT path (RON = 470mΩ). Input priority is fixed: DCIN supersedes USBIN when both are valid (VDCIN > 4.2V and VDCIN > VBAT + 30mV).
Thermal regulation dynamically reduces charge current when die temperature approaches 115°C, while a separate thermal shutdown activates at ~150°C. Charge termination uses an ITERM pin comparator with 3ms filtering to reject transients; termination threshold is set by RITERM (e.g., 2kΩ → 50mA). Trickle charge (VBAT < 2.9V) supplies 1/10th full current and is exclusive to the LTC4096 (not LTC4096X).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Float Voltage | 4.2V ±0.6% - ensures precise cell voltage regulation for safe Li-Ion charging without overvoltage risk. |
| Max DCIN Charge Current | 800mA (with RIDC = 1.24kΩ) - programmable via resistor on IDC pin; enables fast wall-adapter charging. |
| Max USBIN Charge Current | 500mA (with RIUSB = 2kΩ) - independently programmable via resistor on IUSB pin; supports USB-compliant current limits. |
| Termination Threshold | 50mA (with RITERM = 2kΩ) - sets minimum current level below which CC phase ends and CV phase terminates. |
| Thermal Regulation Temp | 115°C junction - automatically scales back charge current to prevent overheating under high ambient or power-dissipation conditions. |
| Shutdown Supply Current | 20µA (DCIN), 10µA (USBIN) - ultra-low quiescent draw preserves system battery during inactive periods. |
| Power Present Output Drive | 120mA source capability on PWR pin - directly powers load switches or status indicators without external buffers. |
Pinout & Package
Package: 10-lead (3mm × 3mm) DFN with exposed thermal pad (Pin 11 = GND), 0.75mm profile, thermally enhanced for linear charger applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DCIN (Pin 1) | Wall adapter input supply | Accepts 4.25–5.5V; powers charger and enables priority charging path; max 1.2A input current. |
| USBIN (Pin 2) | USB input supply | Accepts 4.25–5.5V; secondary charging source; max 1.1A input current; lower priority than DCIN. |
| PWR (Pin 3) | Power present output | Open-drain P-channel output tied to active input (DCIN or USBIN); sinks up to 120mA; indicates valid input power. |
| CHRG (Pin 4) | Charge status indicator | Open-drain N-channel output pulled low during charging; high-impedance when terminated or disabled; drives LED directly. |
| SUSP (Pin 5) | Charge enable control | Logic-low enables charging; internal 3.4MΩ pulldown defaults to active; logic-high forces shutdown mode. |
| ITERM (Pin 6) | Termination current threshold | Resistor-to-GND sets termination current (ITERMINATE = 100mV / RITERM); comparator filtered for noise immunity. |
| IUSB (Pin 7) | USB charge current program | Serves to 1.0V in CC mode; IBATUSB = 1000 × VIUSB / RIUSB; enables real-time current monitoring. |
| 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 | Serves to 1.0V in CC mode; IBATDC = 1000 × VIDC / RIDC; independent of IUSB for asymmetric current settings. |
| BAT (Pin 10) | Battery output terminal | Delivers regulated 4.2V float voltage; connects directly to single-cell Li-Ion anode; no external blocking diode required. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent input control | Automatic DCIN/USBIN selection with hardwired priority avoids firmware dependency and ensures robust power-path arbitration. |
| No external sense resistor or diode | Integrated MOSFET architecture eliminates BOM cost and PCB area for current sensing and reverse-blocking components. |
| Trickle charge for deep discharge recovery | Activates below 2.9V BAT to safely pre-condition deeply discharged cells at 1/10th full rate before CC phase begins. |
| Automatic recharge at 4.15V threshold | Maintains battery near full capacity without host intervention; 1.6ms filter prevents false triggers from transient load dips. |
| Thermal regulation with 115°C setpoint | Prevents thermal runaway by scaling current before reaching critical junction temperature - enables aggressive layout without derating. |
Applications
| Cellular Telephones | MP3 Players |
|---|---|
Use Scenario: Compact smartphone with dual-input charging (wall + USB-C) and space-constrained PCB layout. IC Role / Device Role / Timing Role: Standalone battery management IC handling CC/CV charge control, input arbitration, and status signaling without MCU involvement. Use Value: Eliminates need for discrete FETs, current-sense amps, and voltage references - reduces component count by ≥7 parts and saves >12mm² board area. | Use Scenario: Portable audio player powered from USB port or AC adapter, requiring seamless transition between sources. IC Role / Device Role / Timing Role: Dual-input linear charger with automatic source selection and trickle charge for infrequent-use batteries. Use Value: Enables reliable charging from variable-quality USB hosts while protecting against overvoltage and deep-discharge damage. |
| Portable Handheld Devices | Medical Diagnostic Handhelds |
Use Scenario: Ruggedized industrial scanner with intermittent wall charging and frequent USB data+power docking. IC Role / Device Role / Timing Role: Primary battery charger with PWR and CHRG outputs driving LEDs for user feedback and system power sequencing. Use Value: 120mA PWR output drives load switch for peripheral rail; CHRG open-drain simplifies LED interface with no current-limiting resistor needed. | Use Scenario: Battery-powered ECG monitor requiring FDA-grade reliability, low standby drain, and guaranteed recharge after clinical use. IC Role / Device Role / Timing Role: Safety-critical Li-Ion charger with ±0.6% float accuracy, thermal foldback, and automatic top-off to maintain readiness. Use Value: Meets IEC 62368-1 thermal safety requirements via built-in 115°C regulation and 150°C shutdown - no external thermal sensor required. |
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 |
|---|---|---|---|
| BQ24075RGTR | Single-input (USB-only); no DCIN path; 1.5A max charge current; no trickle charge; different pinout and register map. | Lacks wall-adapter support - unsuitable where AC adapter backup is mandatory. | Select only if USB-only operation suffices and PCB layout allows redesign for non-pin-compatible footprint. |
| MAX1555ESA+ | Legacy dual-input charger; fixed 100mA/500mA USB/DC rates; no independent current programming; no thermal regulation. | No adaptive current scaling - requires conservative thermal design and cannot sustain high ambient temperatures. | Consider for cost-sensitive legacy designs where thermal headroom is guaranteed and programmability is unnecessary. |
Compared with BQ24075RGTR and MAX1555ESA+, the LTC4096EDD#TRPBF uniquely supports independent DC/USB current programming, thermal regulation at 115°C, and ±0.6% float accuracy - making it optimal for compact, thermally constrained, dual-source portable systems demanding long-term reliability.
Availability
LTC4096EDD#TRPBF is available at Aetrix Electronics and suitable for cellular telephones, MP3 players, and portable handheld devices requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for LTC4096EDD#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC4096EDD#TRPBF belongs to ADI's Power Management product line, designed specifically for space-constrained, battery-powered portable electronics requiring autonomous dual-input Li-Ion charging with minimal external components.
FAQ
What is the function of the SUSP pin on the LTC4096EDD#TRPBF?
The SUSP pin on the LTC4096EDD#TRPBF is a logic-controlled enable input: a logic-low voltage (≤0.5V) enables charging, while a logic-high (≥1.2V) places the device in shutdown mode. An internal 3.4MΩ pulldown resistor ensures default activation when left floating. In shutdown, LTC4096EDD#TRPBF draws only 20µA from DCIN or 10µA from USBIN, minimizing system standby current.
Does the LTC4096EDD#TRPBF support trickle charging, and how is it triggered?
Yes, the LTC4096EDD#TRPBF supports trickle charging exclusively in the LTC4096 variant (not LTC4096X). It activates automatically when the BAT pin voltage falls below 2.9V, delivering 1/10th of the programmed full charge current until VBAT rises above the 2.9V threshold. This protects deeply discharged Li-Ion cells from damage during initial conditioning before entering constant-current mode.
How does the LTC4096EDD#TRPBF select between DCIN and USBIN inputs?
The LTC4096EDD#TRPBF uses hardware-based priority arbitration: DCIN is always selected over USBIN if both inputs meet validity criteria - namely, VDCIN > 4.2V and VDCIN > VBAT + 30mV. If DCIN is invalid, USBIN is engaged provided VUSBIN > 4.0V and VUSBIN > VBAT + 30mV. The PWR pin reflects the active source voltage, confirming selection without software polling.
What is the purpose of the ITERM pin on the LTC4096EDD#TRPBF, and how is it configured?
The ITERM pin on the LTC4096EDD#TRPBF sets the charge termination current threshold using an external resistor to ground. The termination current is calculated as ITERMINATE = 100mV / RITERM (e.g., 2kΩ yields 50mA). An internal filtered comparator monitors this pin; when voltage drops below 100mV for ≥3ms, LTC4096EDD#TRPBF terminates charging and transitions to standby mode.
Can the LTC4096EDD#TRPBF be used without connecting both DCIN and USBIN inputs?
Yes, the LTC4096EDD#TRPBF operates correctly with only one input connected. If only DCIN is present and valid, it charges exclusively from that source; if only USBIN is present and valid, it uses USBIN. The device detects input presence autonomously and requires no configuration. Unused inputs should be left unconnected or properly decoupled (1µF capacitor recommended per input), not tied to GND or VCC.
LTC4096EDD#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)
LTC4096EDD#TRPBF FAQ
1.How can I place an order for LTC4096EDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4096EDD#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 LTC4096EDD#TRPBF reliable?
The price and inventory of LTC4096EDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4096EDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC4096EDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4096EDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4096EDD#TRPBF?
LTC4096EDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4096EDD#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 LTC4096EDD#TRPBF?
For technical support, including LTC4096EDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4096EDD#TRPBF requirements.
6.How does Aetrix verify that LTC4096EDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC4096EDD#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 LTC4096EDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC4096EDD#TRPBF?
All LTC4096EDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4096EDD#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 LTC4096EDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC4096EDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC4096EDD#TRPBF Tags
-
BQ21040DBVR
Texas Instruments
-
MCP73812T-420I/OT
Microchip Technology
-
MCP73831T-2ACI/OT
Microchip Technology
-
MCP73832T-2ACI/OT
Microchip Technology
-
MCP73831T-2DCI/OT
Microchip Technology
-
MCP73832T-2DCI/OT
Microchip Technology
-
MCP73831T-2ATI/OT
Microchip Technology
-
MCP73832T-2ATI/OT
Microchip Technology
-
MCP73831T-5ACI/OT
Microchip Technology
-
MCP73832T-2ACI/MC
Microchip Technology
-
MCP73831T-2ACI/MC
Microchip Technology
-
MCP73831T-2ATI/MC
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
