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Analog Devices Inc. LTC4413EDD-2#PBF
- Part No.:
- LTC4413EDD-2#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- OR Controllers, Ideal Diodes
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC4413EDD-2#PBF.pdf
- Description:
- IC OR CTRLR SRC SELECT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,004
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Product details
Overview
LTC4413EDD-2#PBF from Analog Devices is a dual-channel ideal diode controller IC designed for automatic power-path OR'ing and switchover between two input sources (e.g., battery and wall adapter) in portable electronics. It integrates two independent 2.6A P-channel MOSFET ideal diodes, operates from 2.5V to 5.5V, regulates forward voltage drop to 18mV typ, and features overvoltage protection (OVI/OVP) with 6.2V trip threshold - enabling robust protection against >6V adapter surges in handheld power systems.
For engineers reviewing the LTC4413EDD-2#PBF datasheet, LTC4413EDD-2#PBF pinout, LTC4413EDD-2#PBF application, or LTC4413EDD-2#PBF equivalent, key selection considerations include its dual-channel active-high enable control (ENBA/ENBB), 11µA open-drain STAT output indicating conduction state, 100mΩ regulated on-resistance (RFWD), thermal/current limiting, and exclusive LTC4413-2–specific OVI-sensed overvoltage protection driving an external PFET.
Technical Context
The LTC4413EDD-2#PBF implements two independent gate-controlled ideal diode channels using internal amplifiers that regulate MOSFET gate voltage to maintain a constant 18mV forward voltage drop (VFWD) during normal conduction - minimizing power loss versus Schottky diodes. Each channel features programmable enable (ENBA/ENBB), reverse turn-off at VOUT − VIN > –5mV, and status reporting via open-drain STAT.
Unlike the LTC4413-1, the LTC4413EDD-2#PBF includes dedicated overvoltage protection circuitry: OVI senses input voltage and triggers OVP output high when VOVI exceeds 6.2V (rising) or falls below 5.6V (falling), enabling direct drive of an external protection PFET - critical for safeguarding the IC's 6V absolute maximum rating in wall-adapter applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage Range | 2.5V to 5.5V - supports Li-ion battery (3.0–4.2V) and USB 5V systems without level-shifting. |
| Max Forward Current per Channel | 2.6A - enables high-current load sharing or backup switching in portable devices. |
| Regulated Forward Voltage | 18mV typ - reduces conduction loss by >90% vs. Schottky diodes (e.g., 1N5817 ≈ 300mV). |
| OVI Overvoltage Threshold | 6.2V rising / 5.6V falling - provides hysteresis to prevent chatter during marginal overvoltage events. |
| Quiescent Current (Forward) | 40–58µA at 3.6V/100mA - ensures minimal battery drain during active operation. |
| Reverse Leakage Current | <1µA - prevents backfeed and preserves battery charge when source is disconnected. |
| Turn-On/Turn-Off Time | 11µs / 2µs - enables fast switchover (<16µs response to 800mA load step) for seamless power transitions. |
Pinout & Package
Package: 10-lead 3mm × 3mm DFN (DD package), 0.75mm profile, exposed SGND pad (Pin 11) requiring PCB soldering for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA (Pin 1) | Primary input anode supply | Provides power and reference for Channel A; requires ≥1µF ceramic bypass; slew rate limited to <2.5V/µs. |
| ENBA (Pin 2) | Active-high enable for Channel A | Pull high to disable diode A; internal 3.5µA pull-down allows floating; controls mode per Table 1. |
| GND (Pin 3) | Power ground reference | Common return for all internal circuits; must be low-impedance connection to system ground. |
| ENBB (Pin 4) | Active-high enable for Channel B | Independent control of Channel B; identical behavior to ENBA. |
| INB (Pin 5) | Secondary input anode supply | Input for Channel B; same bypass and slew requirements as INA. |
| OUTB (Pin 6) | Channel B cathode/output | Delivers regulated output; requires ≥4.7µF high-ESR ceramic capacitor for stability. |
| OVP (Pin 7) | OVP drive output (LTC4413-2 only) | Open-drain output pulled high during overvoltage; drives external PFET gate to disconnect hazardous input. |
| OVI (Pin 8) | OVI sense input (LTC4413-2 only) | Monitors input voltage via resistor divider; triggers OVP when >6.2V; can be left floating if unused. |
| STAT (Pin 9) | Status indicator output | 11µA open-drain sink; pulled low when selected channel is reverse-biased or disabled. |
| OUTA (Pin 10) | Channel A cathode/output | Primary regulated output; same capacitor requirement as OUTB. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent ideal diodes | Enables simultaneous or selective OR'ing of two power sources without cross-conduction or shoot-through. |
| 18mV regulated forward drop | Reduces conduction loss to ~0.05W at 2.6A (vs. ~0.8W for Schottky), extending battery runtime significantly. |
| OVI/OVP overvoltage protection | Hardware-based protection that disables hazardous inputs before internal 6V absolute max is exceeded. |
| Programmable channel enable | ENBA/ENBB allow microcontroller-level sequencing, fault isolation, or low-power standby (both high = 28–38µA IQ). |
| Thermal + current limiting | Internal protection shuts down both channels at TJ > 150°C and limits peak current to 1.8–2.6A to prevent damage. |
| 11µA STAT status output | Provides real-time indication of conduction state for system monitoring or LED signaling without additional components. |
Applications
| Battery-to-Wall Adapter Switchover | Dual-Battery Load Sharing |
|---|---|
|
Use Scenario: Handheld medical device powered by Li-ion battery, automatically switching to 5V wall adapter when plugged in - while protecting against accidental 9V/12V adapter misuse. IC Role / Device Role / Timing Role: LTC4413EDD-2#PBF acts as intelligent OR'ing controller, detecting adapter presence via voltage rise, disabling battery path, asserting STAT to signal adapter mode, and activating OVP if adapter exceeds 6.2V. Use Value: Eliminates manual power selection, prevents battery over-discharge, and avoids IC damage from overvoltage - all without firmware intervention. |
Use Scenario: Ruggedized tablet with primary and backup Li-ion batteries sharing load based on capacity and voltage, ensuring uninterrupted operation during discharge. IC Role / Device Role / Timing Role: LTC4413EDD-2#PBF independently regulates each battery's forward drop, enabling natural load sharing where higher-voltage battery supplies proportionally more current until voltages equalize. Use Value: Extends total usable runtime by 20–30% vs. single-battery design and avoids premature shutdown due to one cell depletion. |
| USB Peripheral Power Switching | Uninterruptible Portable Supply |
|
Use Scenario: USB-C powered speaker that accepts power from host PC (5V) or internal battery, prioritizing host power while maintaining audio continuity during cable disconnect. IC Role / Device Role / Timing Role: LTC4413EDD-2#PBF monitors both inputs, switches within 11µs when host power drops, and uses STAT to trigger firmware reconfiguration. Use Value: Zero-audio-gap switchover and elimination of bulky mechanical relays or discrete MOSFET+driver solutions. |
Use Scenario: Portable data logger deployed in remote locations, required to operate continuously during AC mains failure using backup supercapacitor or LiPo bank. IC Role / Device Role / Timing Role: LTC4413EDD-2#PBF serves as bidirectional ideal diode, charging backup storage from main supply and delivering power back during outage - with reverse leakage <1µA preserving stored energy. Use Value: Enables >99% energy retention over 72-hour standby and eliminates need for separate charger + LDO + OR'ing diode chain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ideal diode OR'ing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC4413EDD-1#PBF | Lacks OVI/OVP pins and overvoltage protection circuitry; identical pinout and core ideal diode functionality. | Not suitable for wall-adapter applications where input overvoltage risk exists; requires external protection circuitry. | Select LTC4413EDD-1#PBF only when dual-channel OR'ing is needed without overvoltage threat - e.g., battery-to-battery backup. |
| TPS2113APWR | Single-channel, 2A max, no OVI/OVP, 65mV typical forward drop, 2.7–5.5V range, different pinout and enable logic (active-low). | Requires two devices for dual-path operation; lacks integrated overvoltage sensing and STAT feedback. | Choose TPS2113APWR for cost-sensitive, lower-current (≤2A) designs where space allows dual ICs and overvoltage risk is mitigated externally. |
Compared with LTC4413EDD-1#PBF and TPS2113APWR, the LTC4413EDD-2#PBF uniquely delivers dual-channel ideal diode control *plus* hardware-enforced overvoltage protection in a single 3mm × 3mm DFN - eliminating external protection FETs, dividers, and comparators required by alternatives.
Availability
LTC4413EDD-2#PBF is available at Aetrix Electronics and suitable for battery-powered handhelds, USB peripherals, and uninterruptible portable supplies requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for LTC4413EDD-2#PBF 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 (including legacy Linear Technology) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving precision instrumentation, industrial automation, and portable power markets.
The LTC4413EDD-2#PBF belongs to the PowerPath family of ideal diode controllers, engineered specifically for low-loss, high-reliability power switchover and OR'ing in space-constrained battery-operated systems - emphasizing ultra-low VFWD, integrated protection, and minimal quiescent current.
FAQ
What is the key functional difference between LTC4413EDD-2#PBF and LTC4413EDD-1#PBF?
The LTC4413EDD-2#PBF includes dedicated OVI (overvoltage sense) and OVP (overvoltage drive) pins and internal circuitry to detect input voltages exceeding 6.2V and assert OVP high to control an external protection PFET. The LTC4413EDD-1#PBF lacks these pins and protection functions entirely - making LTC4413EDD-2#PBF the only choice for wall-adapter applications where input overvoltage risk exists. Both share identical ideal diode performance, pinout, and enable logic.
How does the STAT pin on LTC4413EDD-2#PBF indicate power path status?
The STAT pin on LTC4413EDD-2#PBF is an open-drain output sinking 11µA when the selected channel is reverse-biased or both ENBA and ENBB are high (standby). It remains high-impedance (effectively floating) when the channel is forward-conducting and enabled. This allows direct connection to a microcontroller GPIO or LED driver to monitor real-time power source selection - for example, pulling STAT low signals "wall adapter active" in switchover applications.
Can LTC4413EDD-2#PBF be used with input voltages above 5.5V?
No - the LTC4413EDD-2#PBF has a 5.5V maximum operating supply voltage for INA, INB, OUTA, and OUTB pins. Voltages above 5.5V violate absolute maximum ratings and risk permanent damage. Its OVI pin (max 13V) and OVP output are designed solely to sense and respond to overvoltage conditions on the *input source*, not to operate the IC itself above 5.5V. Always ensure INA/INB remain ≤5.5V; use external clamping or regulation if upstream sources exceed this.
What is the purpose of the exposed pad (Pin 11, SGND) on LTC4413EDD-2#PBF?
The exposed pad (Pin 11) on LTC4413EDD-2#PBF is designated SGND (signal ground) and must be soldered to a solid PCB ground plane. It serves dual critical functions: (1) providing low-impedance electrical return for internal circuitry to ensure stable operation and accurate sensing, and (2) acting as the primary thermal path to dissipate heat generated during 2.6A conduction - with θJA = 43°C/W. Failure to solder this pad degrades thermal performance and may cause premature thermal shutdown.
Does LTC4413EDD-2#PBF support load sharing between two batteries without external components?
Yes - the LTC4413EDD-2#PBF inherently enables passive load sharing between two batteries connected to INA and INB. When both inputs are present, the channel with the higher voltage conducts first, supplying most of the load current. As that battery discharges, the voltage difference narrows and current gradually shifts to the second battery - achieving natural, resistor-free load balancing. No external op-amps, resistors, or firmware control is required for basic sharing, though ENBA/ENBB allow active control if needed.
LTC4413EDD-2#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Source Selector Switch
- FET Type:
- P-Channel
- Ratio - Input:Output:
- 2:1
- Internal Switch(s):
- Yes
- Delay Time - ON:
- 11 µs
- Delay Time - OFF:
- 2 µs
- Current - Output (Max):
- 2.6A
- Current - Supply:
- 40 µA
- Voltage - Supply:
- 2.5V ~ 5.5V
- Applications:
- Handheld/Mobile Devices
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC4413EDD-2#PBF FAQ
1.How can I place an order for LTC4413EDD-2#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4413EDD-2#PBF 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 LTC4413EDD-2#PBF reliable?
The price and inventory of LTC4413EDD-2#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4413EDD-2#PBF is usually 5 days.
3.What payment methods are accepted for LTC4413EDD-2#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4413EDD-2#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4413EDD-2#PBF?
LTC4413EDD-2#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4413EDD-2#PBF 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 LTC4413EDD-2#PBF?
For technical support, including LTC4413EDD-2#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4413EDD-2#PBF requirements.
6.How does Aetrix verify that LTC4413EDD-2#PBF is sourced from the original manufacturer or authorized distributors?
All LTC4413EDD-2#PBF 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 LTC4413EDD-2#PBF meets industry standards.
7.What is the process for return or replacement of LTC4413EDD-2#PBF?
All LTC4413EDD-2#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4413EDD-2#PBF, 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 LTC4413EDD-2#PBF part is unused and in its original packaging.
Return procedure for LTC4413EDD-2#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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