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Analog Devices Inc. LTC4063EDD#TRPBF
- Part No.:
- LTC4063EDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Battery Chargers
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC4063EDD#TRPBF.pdf
- Description:
- IC BATT CHG LI-ION 1CELL 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,347
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Product details
Overview
LTC4063EDD#TRPBF from Analog Devices (formerly Linear Technology) is a standalone linear Li-ion battery charger with integrated 100mA adjustable low-dropout linear regulator (LDO). It delivers up to 1A charge current, maintains ±0.35% float voltage accuracy at 4.2V, and regulates LDO output from 1.2V to 4.2V - enabling uninterrupted power to USB controllers or memory during wall-adapter removal in portable MP3 players.
For engineers reviewing the LTC4063EDD#TRPBF datasheet, LTC4063EDD#TRPBF pinout, LTC4063EDD#TRPBF application, or LTC4063EDD#TRPBF equivalent, key selection criteria include programmable charge termination (timer/current/user), thermal regulation at 105°C, 35µA shutdown quiescent current, and DFN-10 package compatibility with space-constrained handheld designs.
Technical Context
The LTC4063EDD#TRPBF integrates a P-channel MOSFET charger and an LDO powered from the BAT pin, supporting seamless switchover between VCC and battery supply. Its dual independent enable inputs (CHGEN and LDOEN) allow granular control of charging and regulation functions without shared logic dependencies.
Charge termination is configurable via TIMER pin states (capacitor for time-based, ground for current-based, VCC for user-controlled), while IDET pin sets detection threshold using external resistor. SmartStart™ initiates full charge only when BAT falls below 4.1V, reducing cycle count and extending battery life.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charge Current Range | Programmable up to 1A via PROG pin resistor; enables fast charging of 900mAh batteries in ≤3 hours. |
| Float Voltage Accuracy | ±0.35% over –40°C to 85°C; ensures safe, precise 4.2V termination for single-cell Li-ion chemistry. |
| LDO Output Range | 1.2V to 4.2V (set by FB divider); supports 3V rail generation for USB PHYs or low-voltage microcontrollers. |
| LDO Dropout Voltage | 125mV at 100mA load; allows stable 3V output even as battery discharges to 3.125V. |
| Quiescent Current (Shutdown) | 35µA (charger) + 15µA (LDO); minimizes battery drain during system sleep in portable devices. |
| Thermal Regulation Threshold | 105°C junction temperature; dynamically reduces charge current to prevent overheating on compact PCBs. |
| Package | 10-Lead (3mm × 3mm) DFN with exposed pad; provides 40°C/W θJA for thermal management in high-power density layouts. |
Pinout & Package
Package: 10-Lead (3mm × 3mm) Plastic DFN with exposed GND pad (Pin 11), requiring soldering to PCB copper for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BAT (Pin 1) | Charger output / LDO input | Delivers regulated 4.2V float to battery and powers LDO; must be decoupled near cell connection point. |
| OUT (Pin 2) | LDO regulated output | Supplies up to 100mA; requires ≥2µF low-ESR capacitor for stability and transient response. |
| FB (Pin 3) | LDO feedback input | Compares against 800mV internal reference; sets output voltage via R1/R2 divider (VOUT = 0.8V × (1 + R1/R2)). |
| LDOEN (Pin 4) | LDO enable control | Logic-high disables LDO, reducing battery drain to <5µA; 2MΩ internal pull-down defaults to enabled state. |
| CHGEN (Pin 5) | Charger enable control | Logic-high places charger in shutdown (<65µA ICC); 2MΩ internal pull-down defaults to enabled state. |
| CHRG (Pin 6) | Open-drain charge status | Drives LED or MCU GPIO; pulls down during active charge (IBAT > IDETECT), high-Z when terminated or faulted. |
| TIMER (Pin 7) | Termination mode selector | Capacitor-to-GND enables 3-hour timer; grounded enables current-based termination; tied to VCC enables external control. |
| IDET (Pin 8) | Current detection threshold | Sets IDETECT = ICHG/10 via RDET; determines CHRG transition point in constant-voltage phase. |
| PROG (Pin 9) | Charge current programming | Sets ICHG = 1000 × VPROG/RPROG; VPROG held at 1V in CC mode for real-time current monitoring. |
| VCC (Pin 10) | Input supply input | Accepts 4.3V–8V (USB/wall adapter); includes UVLO at 3.8V with 200mV hysteresis and reverse-current protection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated P-MOSFET charger | Eliminates external sense resistor, blocking diode, and discrete FET - reducing BOM count and layout area. |
| Adjustable LDO with 1.2V–4.2V range | Enables direct powering of 1.8V/2.5V/3.3V peripherals from battery without secondary regulators. |
| SmartStart™ battery health management | Initiates full charge only if BAT < 4.1V (~80–90% SOC), preventing unnecessary cycles and prolonging cycle life. |
| Thermal regulation at 105°C | Maintains safe operation under high ambient or high-power conditions by automatically scaling back charge current. |
| Three charge termination modes | Supports design flexibility: fixed-time (3h), current-threshold (C/10), or user-controlled via CHGEN - no firmware required. |
| Defective battery detection | Enters FAULT state with blinking CHRG output if trickle charge persists >25% of programmed time - signals replacement need. |
Applications
| Handheld Computers | Portable MP3 Players |
|---|---|
Use Scenario: Compact tablet running on single-cell Li-ion with USB-hosted accessories. IC Role / Device Role / Timing Role: Charger manages battery top-off while LDO supplies stable 3.3V to USB controller during host-mode operation. Use Value: Seamless VCC-to-battery switchover prevents accessory disconnect during adapter removal; ±0.35% float accuracy avoids overcharge stress. |
Use Scenario: Battery-powered audio player with OLED display and flash memory. IC Role / Device Role / Timing Role: LDO delivers regulated 1.8V to memory ICs; charger operates in SmartStart™ mode to minimize deep-discharge cycling. Use Value: 15µA LDO quiescent current extends playback time; thermal regulation sustains 700mA charge rate in plastic enclosure. |
| Digital Cameras | Bluetooth Headsets |
Use Scenario: DSLR-style camera with rapid burst capture and SD card writes. IC Role / Device Role / Timing Role: Charger delivers 1A peak current to recover battery after high-drain bursts; LDO powers image sensor bias rails. Use Value: Programmable C/10 termination ensures full charge without voltage overshoot; 125mV dropout enables 3V sensor supply down to 3.125V battery. |
Use Scenario: Small-form-factor headset requiring ultra-low standby drain. IC Role / Device Role / Timing Role: CHGEN and LDOEN pins jointly reduce total system quiescent current to <2µA in storage mode. Use Value: 35µA charger shutdown + <5µA LDO shutdown preserves battery for months; DFN-10 fits tight earbud PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-cell Li-ion charger with integrated LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ24075RGTR | Fixed 4.2V LDO output (no adjustability); 1.5A max charge current; I²C interface required for configuration. | Requires microcontroller for setup; lacks SmartStart™ and thermal regulation; better suited for systems with host control. | Select when I²C configurability and higher charge current outweigh need for autonomous operation and adjustable LDO. |
| MAX1555ESA+ | Fixed 4.2V float; no integrated LDO; 500mA max charge current; USB enumeration support. | No regulated auxiliary output; relies on separate LDO; limited to USB-powered devices without wall adapter support. | Select for cost-sensitive USB-only applications where auxiliary regulation is handled externally. |
Compared with BQ24075RGTR and MAX1555ESA+, the LTC4063EDD#TRPBF offers autonomous analog control, adjustable LDO output, SmartStart™ battery preservation, and thermal regulation - making it optimal for standalone, microcontroller-free portable devices needing robust, self-managed power management.
Availability
LTC4063EDD#TRPBF is available at Aetrix Electronics and suitable for handheld computers, portable MP3 players, and digital cameras requiring stable component supply across industrial temperature ranges (–40°C to 85°C).
Supply support for LTC4063EDD#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 and maintains its precision analog portfolio, emphasizing high-reliability power management ICs for demanding portable and industrial applications.
The LTC4063EDD#TRPBF belongs to Linear's standalone battery management product line, designed specifically for space-constrained, microcontroller-less Li-ion systems requiring autonomous charging and auxiliary regulation without firmware overhead.
FAQ
What is the maximum charge current supported by the LTC4063EDD#TRPBF?
The LTC4063EDD#TRPBF supports a maximum charge current of 1A, set by connecting an appropriate resistor from the PROG pin to ground. The relationship is ICHG = 1000 × VPROG/RPROG, where VPROG is regulated to 1V in constant-current mode. At 1A, thermal regulation activates above ~105°C junction temperature to maintain safe operation.
How does the LTC4063EDD#TRPBF handle power source transitions between wall adapter and battery?
The LTC4063EDD#TRPBF enables uninterrupted power delivery during source transitions: when VCC is removed, the LDO continues regulating OUT from the BAT pin without interruption. This behavior is intrinsic to its architecture - the LDO draws power directly from BAT, and no external switchover circuitry is needed. The LTC4063EDD#TRPBF maintains regulation as long as BAT remains ≥2.65V.
Can the LTC4063EDD#TRPBF's LDO output voltage be adjusted, and what is the valid range?
Yes, the LTC4063EDD#TRPBF's LDO output voltage is fully adjustable from 1.2V to 4.2V using an external resistor divider on the FB pin. The formula is VOUT = 0.8V × (1 + R1/R2), where R1 connects OUT to FB and R2 connects FB to GND. The upper limit is constrained by battery voltage minus dropout (e.g., 4.2V – 0.125V = 4.075V at 100mA), ensuring stable regulation across discharge.
What happens when the battery voltage drops below the trickle charge threshold on the LTC4063EDD#TRPBF?
When the BAT pin voltage falls below 2.9V, the LTC4063EDD#TRPBF enters trickle charge mode, delivering 1/10th of the programmed charge current to safely raise the cell voltage. If the battery remains in trickle charge for more than 25% of the total programmed charge time, the LTC4063EDD#TRPBF enters FAULT state - indicated by a 50% duty-cycle square wave on CHRG - signaling potential cell failure.
Does the LTC4063EDD#TRPBF require external components for basic operation, and which ones are mandatory?
Yes, the LTC4063EDD#TRPBF requires three mandatory external components for basic operation: a PROG resistor (to set charge current), a capacitor on VCC (1µF ceramic), and a capacitor on OUT (≥2µF low-ESR). Optional components include CTIMER (for time-based termination), RDET (for current-based termination), and the FB divider (for adjustable LDO output). No external MOSFET, sense resistor, or blocking diode is needed due to its integrated architecture.
LTC4063EDD#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
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current, Timer
- Fault Protection:
- -
- Charge Current - Max:
- 1A
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 8V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC4063EDD#TRPBF FAQ
1.How can I place an order for LTC4063EDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4063EDD#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 LTC4063EDD#TRPBF reliable?
The price and inventory of LTC4063EDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4063EDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC4063EDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4063EDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4063EDD#TRPBF?
LTC4063EDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4063EDD#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 LTC4063EDD#TRPBF?
For technical support, including LTC4063EDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4063EDD#TRPBF requirements.
6.How does Aetrix verify that LTC4063EDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC4063EDD#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 LTC4063EDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC4063EDD#TRPBF?
All LTC4063EDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4063EDD#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 LTC4063EDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC4063EDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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