LTC4416EMS-1#TRPBF - 36V Dual PowerPath Controller | ADI
MPN: LTC4416EMS-1#TRPBF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.19 | $4.19 |
| 10 | $3.77 | $37.70 |
| 100 | $3.41 | $341.00 |
| 500 | $3.11 | $1,555.00 |
| 1,000 | $2.94 | $2,940.00 |
LTC4416EMS-1#TRPBF Overview
A PowerPath (power-path) controller, also called an ORing controller or ideal diode controller, is a power management IC that replaces discrete power ORing diodes with MOSFET-based switches. In the system hierarchy it sits within power management ICs (PMICs), between hot-swap controllers and load switches. Because a MOSFET conducts with only milliohms of on-resistance instead of the 0.3V to 0.7V forward drop of a silicon diode, power ORing efficiency improves dramatically, self-heating drops, and brownout margin increases.
Key features of the LTC4416-1 include a wide operating supply range supporting one to eight Li-Ion cells in series, very low 35uA per-channel quiescent current that is independent of load current, and fast switchover with a 30us off-time delay and 60us on-time delay. The device is designed specifically to drive both large and small QG PFETs, making it a very low loss replacement for power supply ORing diodes in high-current rails.
The LTC4416-1 variant enables fast gate pull-down under fault conditions and when the other external P-channel device is selected via the enable pins, giving deterministic switchover behavior versus the standard LTC4416. Gate-drive architecture actively charges and discharges the MOSFET gates, providing controlled forward-voltage regulation and reverse-current blocking without discrete diode losses. Per the Analog Devices datasheet, the E-grade is guaranteed from 0C to 85C, with -40C to 85C performance assured by design and characterization.
Typical applications include PoE (Power over Ethernet) powered-equipment power supply ORing, battery and adapter switchover in portable instruments, and redundant-supply ORing in telecom and industrial systems where extended battery life and low self-heating matter.
Design consideration: size the external P-channel MOSFET so that its gate-charge is compatible with the LTC4416-1 drive capability, and verify that supply voltage never exceeds the 36V absolute maximum; input TVS protection is recommended on long cable runs such as PoE.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for LTC4416EMS-1#TRPBF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LTC4416EMS-1#TRPBF (same form factor and footprint) — differing in Configuration (LTC4416-1), Function, Package, Quiescent Current.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LTC4416EMS#TRPBF
✅ Drop-In📋 Reference alternative (not in catalog)
LTC4416EMS-1#PBF
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →LTC4416IMS-1#TRPBF
✅ Drop-In📋 Reference alternative (not in catalog)
LTC4416IMS#TRPBF
✅ Drop-In📋 Reference alternative (not in catalog)
LTC4416EMS-1#TRPBF Maximum Ratings & Electrical Characteristics
| Function | Dual PowerPath / ORing controller (ideal diode) |
| Operating Supply Voltage Range | up to 36 V (1 to 8 Li-Ion cells) |
| Number of Channels | 2 |
| FET Type Driven | External P-Channel MOSFET (large and small QG) |
| Quiescent Current | 35 uA per channel (independent of load) |
| Delay Time - OFF | 30 us |
| Delay Time - ON | 60 us |
| Configuration (LTC4416-1) | 2:2 with fast-off and enable-selected switchover |
| Package | 10-MSOP (MS10E), 3.00 mm width |
| Mounting Type | Surface Mount |
| Operating Temperature Grade (E) | 0C to 85C (guaranteed); -40C to 125C (I grade variant) |
| Packaging | Tape & Reel (TR), #TRPBF |
| Lead Finish | PBF = Lead-free / RoHS (per ADI #TRPBF suffix) |
| Primary Application | Low-loss replacement for ORing diodes; PoE/PSE power switchover |
| Manufacturer Product Status | Production (per analog.com) |
LTC4416EMS-1#TRPBF 10-msop (ms10e), 3.00 mm width Pin Configuration Guide
Pin configuration for LTC4416EMS-1#TRPBF (10-msop (ms10e), 3.00 mm width package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for LTC4416EMS-1#TRPBF.
Refer to the datasheet for full pin configuration.
Typical Applications
LTC4416EMS-1#TRPBF is suitable for 6 applications: PoE Powered Equipment Power ORing, Multi-Cell Li-Ion Battery and Adapter Switchover, Redundant Telecom Supply ORing, Industrial Backup Battery Retention, Solar and Alternative Energy Input Combining, Automotive-Adjacent and High-Voltage Accessory Rails.
PoE Powered Equipment Power ORing
The LTC4416EMS-1#TRPBF is explicitly marketed by Mouser as a 36V low-loss dual PowerPath controller for large PFETs, a description aimed at PoE powered-device front ends. In a PoE application, two power feeds - for example auxiliary adapter input and the PoE PD rectifier output - are ORed through external P-channel MOSFETs whose gates are driven by the LTC4416-1. The 36V supply range covers PoE voltage classes with margin, while MOSFET ORing replaces two silicon diodes that would otherwise dissipate roughly 0.5W per ampere of load current. The fast-off mode of the -1 variant disconnects a failed or de-prioritized source quickly when the enable pins select the alternate channel, giving the 30us off-time response needed for hold-up-capacitor sized systems. Low 35uA per-channel quiescent current keeps standby drain negligible in always-on PD equipment.
Recommended
Multi-Cell Li-Ion Battery and Adapter Switchover
The Analog Devices datasheet states the LTC4416 wide operating supply range supports one to eight Li-Ion cells in series, making this part well matched to 1S through 8S battery stacks (roughly 3.7V to 33.6V charged). Typical use: OR the battery stack with a wall adapter so the load runs from adapter when present and battery when absent. Each LTC4416-1 channel regulates its PFET forward drop near zero, so switchover from adapter to battery produces minimal output disturbance, and the 60us on-delay with 30us off-delay bounds the transient. Because quiescent current is 35uA per channel and independent of load, battery drain while the controller supervises an idle channel stays in the microamp range, directly extending standby battery life in instruments, medical devices, and portable test equipment powered by stacked Li-Ion cells.
Recommended
Redundant Telecom Supply ORing
Telecom and datacom cards commonly OR two -48V-derived or intermediate-bus feeds for redundancy. The LTC4416EMS-1#TRPBF drives two independent PFET pairs so each source is isolated when off, preventing a fault on one feed from back-feeding the other - a key advantage over diode ORing with its uncontrolled reverse leakage. The fast-off enable architecture of the LTC4416-1 lets a supervisory logic signal pull the selected channel off within the 30us off-time when the alternate source takes over, supporting deterministic failover. Operating up to 36V with the E-grade specified 0C to 85C covers typical central-office ambient conditions, and the LTC4416IMS-1#TRPBF I-grade covers -40C to 125C for outside-plant equipment. The MSOP-10 footprint keeps the controller area small beside high-current MOSFETs.
Recommended
Industrial Backup Battery Retention
In industrial controls, PLC I/O, and metering, a small backup battery or supercapacitor must take over the logic rail during mains dropout. The LTC4416EMS-1#TRPBF ORs the main 24V-derived rail with the backup source, holding the output load side near the higher of the two voltages with only PFET RDS(on) loss - for a 10mOhm MOSFET, just 100mV at 10A versus a diode's 0.5-0.7V drop. Per the ADI datasheet the 36V rating withstands unregulated industrial supplies, and 35uA per-channel quiescent current keeps the backup battery from draining while supervising the main rail. The enable pins permit logic-controlled source priority, and the 30us/60us switchover delays are fast enough that bulk output capacitance rides through without brownout.
Recommended
Solar and Alternative Energy Input Combining
Energy-harvesting and solar systems often combine two panels or a panel plus a storage source. Two LTC4416-1 ideal-diode channels prevent reverse current from a shaded panel back into brighter panels, which discrete blocking diodes do at the cost of a fixed forward voltage and the associated harvest loss. With a low-RDS(on) PFET the series loss at several amperes drops to the tens-of-millivolts level, recovering energy that diode ORing would waste as heat, and reducing panel-side self-heating. The 36V rating accommodates two series 12V-class panels, and the E-grade 0C to 85C range suits outdoor enclosures. Because quiescent draw is 35uA per channel independent of load, the controller itself never becomes a significant parasitic load on the harvested energy budget.
Recommended
Automotive-Adjacent and High-Voltage Accessory Rails
Though the E-grade LTC4416EMS-1#TRPBF is not AEC-Q100 qualified, its 36V rating suits 12V automotive-adjacent and industrial-vehicle accessory rails subjected to load-dump-adjacent transients when paired with proper TVS clamping. Use cases include dual-battery ORing in marine and RV systems, camera and telematics units fed by either vehicle rail or backup cell, and test instrumentation powered from bench supply or internal battery. The LTC4416-1 fast-off mode enables clean priority selection - adapter over battery - via the enable pins, with the 60us on-delay preventing both PFETs conducting simultaneously. For production automotive programs requiring -40C to 125C guaranteed-and-tested operation, substitute the pin-identical LTC4416IMS-1#TRPBF I-grade in the same PCB footprint.
Recommended
Recommended Products Summary
Engineering reference data for LTC4416EMS-1#TRPBF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LTC4416EMS#TRPBF | LTC4416EMS-1#PBF | LTC4416IMS-1#TRPBF | LTC4416IMS#TRPBF |
|---|---|---|---|---|---|
| Package | 10-MSOP (MS10E) | 10-MSOP (MS10E) - same | 10-MSOP (MS10E) - same | 10-MSOP (MS10E) - same | 10-MSOP (MS10E) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Operating Voltage | up to 36 V | up to 36 V | up to 36 V | up to 36 V | up to 36 V |
| Quiescent Current | 35 uA per channel | 35 uA per channel | 35 uA per channel | 35 uA per channel | 35 uA per channel |
| Switchover Mode | 2:2 fast-off, enable-selected | 2:1 standard arbitration | 2:2 fast-off, enable-selected | 2:2 fast-off, enable-selected | 2:1 standard arbitration |
| Delay Time OFF / ON | 30 us / 60 us | 30 us / 60 us | 30 us / 60 us | 30 us / 60 us | 30 us / 60 us |
| Temperature Guarantee | 0C to 85C (E grade) | 0C to 85C (E grade) | 0C to 85C (E grade) | -40C to 125C (I grade, tested) | -40C to 125C (I grade, tested) |
| Packaging | Tape & Reel (#TRPBF) | Tape & Reel | Tray | Tape & Reel | Tape & Reel |
Key Differentiators
- Fast-off enable-selected switchover (vs LTC4416EMS#TRPBF)
- Lower-cost E-grade option within same footprint (vs LTC4416IMS-1#TRPBF)
- MOSFET ORing efficiency vs diode solutions (vs Diode-OR alternatives (e.g., LTC4441-class discrete approaches))
Design Notes
Size the external P-channel MOSFETs primarily by RDS(on) x ILOAD for conduction loss and by gate charge for switchover speed; the LTC4416-1 is specified to drive both large and small QG PFETs, but very large QG devices extend the 60us on-delay. Estimated: a 10mOhm PFET at 10A dissipates 1W, versus roughly 5-7W for a silicon ORing diode at 0.5-0.7V forward drop - the core efficiency argument for this controller.
The 36V operating rating must never be exceeded - PoE cabling and telecom feeds can carry transients well above nominal. Place TVS diodes and series impedance at each input ahead of the LTC4416-1 and its PFETs. Also confirm temperature grade before final BOM: the E-grade (EMS) part is guaranteed 0C to 85C only; for -40C to 125C guaranteed-and-tested performance switch to LTC4416IMS-1#TRPBF, which is footprint-identical.
Keep the gate-drive loops short: route GATE1/GATE2 traces close to their SRC pins and minimize gate trace inductance to preserve the 30us fast-off timing and prevent gate ringing. Use Kelvin connections for the source sense nodes, and pour copper under the PFET drain/source for the high-current path - the controller itself carries almost no load current, so MSOP-10 thermal demands are modest. Decouple the IC supply with a 0.1uF ceramic placed within 2-3mm of the VIN pin.
Compliance Information
#TRPBF suffix denotes lead-free (PBF) tape-and-reel packaging per ADI naming convention, confirmed in DigiKey/Mouser listings. REACH, halogen-free, and conflict-minerals declarations not stated in provided data.
