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Analog Devices Inc. LTC4410ES6#TRPBF
- Part No.:
- LTC4410ES6#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Battery Chargers
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC4410ES6#TRPBF.pdf
- Description:
- IC BATT CHG LI-ION 1CEL TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,371
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Product details
Overview
LTC4410ES6#TRPBF from Analog Devices (formerly Linear Technology) is a USB power manager IC that regulates total current draw between a USB-powered portable device and its linear battery charger. It supports dual-mode USB 1.0/2.0 compliance (100mA/500mA), delivers ≤100mV dropout at 500mA, consumes only 80µA quiescent current in 500mA mode, and provides reverse-current blocking without external diodes - enabling simultaneous operation and charging in cellular phones and digital cameras.
For engineers reviewing the LTC4410ES6#TRPBF datasheet, LTC4410ES6#TRPBF pinout, LTC4410ES6#TRPBF application, or LTC4410ES6#TRPBF equivalent, key selection criteria include MODE-selectable USB current limits, CHP-programmable charge current scaling (IVOUT/1000 ±6%), UVLO threshold (4.2V typ), thermal shutdown protection, and compatibility with LTC4053/LTC4054/LTC4055 battery chargers.
Technical Context
The LTC4410ES6#TRPBF implements a current-sensing power-path controller using an internal MOSFET to monitor VOUT load current and proportionally scale a replica current (IVOUT/1000) onto the CHP pin. Its MODE pin selects between two operating modes: high for 500mA USB compliance (CHP = IVOUT/1000), low for 100mA compliance (CHP = IVOUT/1000 + 370µA typ).
It integrates a 4.2V UVLO comparator driving the open-drain USBP output, enabling external P-channel MOSFET control for battery isolation during USB presence. Thermal shutdown activates above TJ = 125°C, and reverse current is limited to ≤5µA when VOUT = 4V and VIN = 0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.35V to 5.5V - matches standard USB 5V supply with margin for cable drop and regulation tolerance. |
| Quiescent Current (500mA Mode) | 80µA typ - ensures USB suspend-mode compliance (<500µA) without external enable logic. |
| CHP Output Accuracy | ±6% - enables precise, programmable battery charge current reduction via PROG-pin summing in compatible chargers. |
| UVLO Threshold | 4.05V to 4.35V - prevents false turn-on during brown-out or hot-plug transients on USB VBUS. |
| Reverse Leakage Current | ≤5µA at VOUT = 4V, VIN = 0V - eliminates need for external blocking diode, reducing BOM count and forward drop loss. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and consumer portable equipment environments. |
| RDS(ON) (Typical) | 170mΩ at 25°C - contributes to ≤100mV dropout at 500mA, minimizing power loss and heat generation. |
Pinout & Package
Package: 6-lead TSOT-23 (ThinSOT™), 1mm profile, JEDEC MO-193 compliant, footprint-compatible with SOT-23 but with tighter lead pitch (0.95mm). Pin 1 marked by beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | USB Input Supply | Accepts 4.35V–5.5V USB VBUS; enables internal switch only when >4.2V (UVLO threshold). |
| GND (Pin 2) | Signal Ground Reference | Common return for all analog and switching circuitry; must be low-impedance connection to system ground plane. |
| MODE (Pin 3) | USB Current Mode Select | Logic-high selects 500mA mode (CHP = IVOUT/1000); logic-low selects 100mA mode (CHP = IVOUT/1000 + 370µA). |
| USBP (Pin 4) | USB Present Open-Drain Output | Pulled high when VIN > 4.2V; drives external P-MOSFET gate to isolate battery during USB connection. |
| CHP (Pin 5) | Charger Program Current Source | Sources precision current (IVOUT/1000 ±6%) to battery charger PROG pin to dynamically reduce charge current as system load increases. |
| VOUT (Pin 6) | Power Path Output | Delivers regulated USB power to system load; internal switch disconnects battery when VOUT > VIN, limiting drain to 1µA typ. |
Key Features
| Feature | Design Value |
|---|---|
| Dual USB Current Mode Selection | Hardware-configurable 100mA/500mA compliance via MODE pin - eliminates firmware dependency for USB enumeration. |
| Integrated Reverse Current Blocking | No external Schottky diode required - reduces solution size, cost, and forward voltage loss (typ. 0.3V saved). |
| Low-Power Battery Disconnect | 1µA typical battery drain when VOUT > VIN - extends shelf life and standby time in deeply discharged states. |
| Thermal Shutdown Protection | Activates at TJ ≥ 125°C - prevents damage during sustained overload or poor PCB thermal design. |
| Minimal External Components | Only bypass capacitors and optional pull-up/down resistors needed - simplifies layout and accelerates time-to-market. |
Applications
| Cellular Phones | Digital Cameras |
|---|---|
Use Scenario: Smartphone connected to USB host while running camera app and charging single-cell Li-ion battery. IC Role / Device Role / Timing Role: PowerPath manager enforcing USB 500mA limit while dynamically scaling LTC4054 charge current via CHP pin. Use Value: Enables full-system operation without violating USB spec, eliminating need for user to choose between "use" or "charge". | Use Scenario: High-resolution digital camera drawing burst-mode current spikes while charging via USB cable. IC Role / Device Role / Timing Role: Real-time load-current sensing and proportional CHP current sourcing to prevent USB port overcurrent shutdown. Use Value: Maintains uninterrupted image capture and video recording during charging, avoiding mid-session power interruption. |
| MP3 Players | Battery Backup Systems |
Use Scenario: Portable audio player operating from USB bus power with background battery top-off using LTC4053. IC Role / Device Role / Timing Role: USBP-driven external P-MOSFET isolates battery during USB presence; MODE pin set to 100mA for low-power suspend mode. Use Value: Achieves <500µA system suspend current - meets USB 2.0 low-power requirements without additional enable circuitry. | Use Scenario: Industrial data logger with primary Li-ion battery and USB-based backup charging during maintenance windows. IC Role / Device Role / Timing Role: Ensures zero reverse current flow from battery to USB port when disconnected, preserving battery state-of-charge during long idle periods. Use Value: Eliminates parasitic discharge path - extends battery retention from days to >6 months at room temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC4412ES6#TRPBF | Higher input range (3V–28V), no MODE pin, fixed 500mA USB compliance, lower RDS(ON) (120mΩ), no CHP current scaling. | Designed for wide-input DC-DC OR-ing (e.g., wall adapter + USB), not USB-specific charge management. | Select LTC4412ES6#TRPBF only if supporting non-USB inputs or requiring higher voltage operation; not drop-in for USB-only charge coordination. |
| LTC4055EDD#TRPBF | Integrated USB power controller + linear charger in 4mm × 4mm QFN; includes automatic battery switchover, C/10 termination, and internal MOSFETs. | Single-chip solution replacing both LTC4410ES6#TRPBF and external charger (e.g., LTC4053); no external PROG resistor needed. | Select LTC4055EDD#TRPBF when consolidating BOM and reducing board area is prioritized over discrete control flexibility and thermal separation. |
Compared with LTC4410ES6#TRPBF, LTC4412ES6#TRPBF offers broader input voltage support but lacks programmable USB current modes and CHP-based charge coordination; LTC4055EDD#TRPBF integrates charging control but sacrifices discrete power-path tuning and thermal management granularity.
Availability
LTC4410ES6#TRPBF is available at Aetrix Electronics and suitable for cellular phones, digital cameras, MP3 players, and battery backup systems requiring stable component supply, long-lifecycle availability, and guaranteed traceable sourcing.
Supply support for LTC4410ES6#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 full product support, documentation, and manufacturing continuity for legacy Linear parts including the LTC4410 series.
The LTC4410 belongs to Linear's PowerPath™ family of USB and DC power management ICs, designed specifically to solve simultaneous operation-and-charging challenges in space-constrained portable electronics.
FAQ
What is the primary function of the CHP pin on the LTC4410ES6#TRPBF?
The CHP pin on the LTC4410ES6#TRPBF sources a precision current equal to the VOUT load current divided by 1000 (±6% accuracy), optionally offset by 370µA depending on MODE pin state. This current is injected into the PROG pin of compatible linear battery chargers (e.g., LTC4053) to dynamically reduce charge current as system load increases - ensuring total USB current stays within 100mA or 500mA limits. The LTC4410ES6#TRPBF uses this mechanism to coordinate power between the USB port and battery without firmware intervention.
Does the LTC4410ES6#TRPBF require an external blocking diode?
No, the LTC4410ES6#TRPBF does not require an external blocking diode. Its internal architecture prevents reverse current flow from VOUT to VIN, with leakage specified at ≤5µA when VOUT = 4V and VIN = 0V. This eliminates forward voltage drop (typically 0.3V) and associated power loss, simplifies BOM, and reduces thermal stress - a key advantage confirmed in the datasheet's "Reverse Current Blocking Diode Not Required" feature list and Electrical Characteristics table.
How does the MODE pin affect USB current compliance for the LTC4410ES6#TRPBF?
The MODE pin on the LTC4410ES6#TRPBF selects between two USB current compliance modes: logic-high configures 500mA mode (CHP = IVOUT/1000), and logic-low configures 100mA mode (CHP = IVOUT/1000 + 370µA typ). This hardware-selectable mode allows the LTC4410ES6#TRPBF to meet both USB 2.0 high-power and low-power specifications without software control. The 370µA offset ensures the battery charger maintains minimum bias current even under light system loads in 100mA mode.
What is the maximum continuous output current supported by the LTC4410ES6#TRPBF?
The LTC4410ES6#TRPBF is rated for continuous output current up to 500mA in high-mode operation, with a typical RDS(ON) of 170mΩ resulting in ≤100mV dropout at that load. While absolute maximum ratings list IVOUT up to 2A, sustained operation beyond 500mA risks thermal shutdown due to power dissipation (P = I²R), especially without adequate PCB copper area. The device's thermal shutdown activates at TJ ≥ 125°C, and datasheet application circuits consistently target ≤500mA for reliable USB-compliant operation - confirming 500mA as the functional maximum for the LTC4410ES6#TRPBF.
Can the LTC4410ES6#TRPBF be used with battery chargers other than Linear Technology parts?
Yes, the LTC4410ES6#TRPBF can interface with non-Linear battery chargers, provided they accept a current-source input on their PROG or ICHARGE programming node with a 1000:1 charge-current-to-program-current ratio. The LTC4410ES6#TRPBF's CHP output delivers IVOUT/1000 ±6%, so compatibility depends on the target charger's PROG pin sensitivity and voltage compliance range (e.g., 0–3.5V). While Linear parts like LTC4053/LTC4054 are explicitly validated, third-party chargers meeting these electrical interface conditions may work - but require bench validation of current scaling linearity and thermal behavior under dynamic load.
LTC4410ES6#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 1
- Current - Charging:
- -
- Programmable Features:
- -
- Fault Protection:
- Over Temperature, Reverse Current
- Charge Current - Max:
- -
- Battery Pack Voltage:
- -
- Voltage - Supply (Max):
- 5.5V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LTC4410ES6#TRPBF FAQ
1.How can I place an order for LTC4410ES6#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4410ES6#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 LTC4410ES6#TRPBF reliable?
The price and inventory of LTC4410ES6#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4410ES6#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC4410ES6#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4410ES6#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4410ES6#TRPBF?
LTC4410ES6#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4410ES6#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 LTC4410ES6#TRPBF?
For technical support, including LTC4410ES6#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4410ES6#TRPBF requirements.
6.How does Aetrix verify that LTC4410ES6#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC4410ES6#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 LTC4410ES6#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC4410ES6#TRPBF?
All LTC4410ES6#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4410ES6#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 LTC4410ES6#TRPBF part is unused and in its original packaging.
Return procedure for LTC4410ES6#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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