Analog Devices Inc. LTC4412ES6#TRPBF

View All Display Drivers by Analog Devices Inc.

Part Number:
LTC4412ES6#TRPBF
Manufacturer:
Analog Devices Inc.
Category:
Display Drivers
RoHs:
Non-RoHS Compliant
Datasheet:
Description:
OR Controller Source Selector Switch P-Channel 2:1 TSOT-23-6
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Overview

LTC4412ES6#TRPBF – Complete Datasheet Summary

1. Basic Identification

Full Part Number: LTC4412ES6#TRPBF
Manufacturer: Analog Devices (Linear Technology)
Device Type: Low‑Loss PowerPath™ Ideal Diode Controller
Grade: Industrial (‑40°C to +85°C)
Package: 6‑Lead ThinSOT™ (TSOT‑23, S6)
Packaging: Tape‑and‑Reel (TRPBF)
RoHS / Green: Lead‑free, Halogen‑free
Document: Rev. C
Marking: LTA2
Key Function: Drives external P‑channel MOSFET to replace power OR’ing diodes with near‑zero voltage drop

2. Key Features

Near‑ideal diode: ~20 mV forward drop vs. ~300 mV for Schottky
Automatic supply switchover: Battery ↔ DC adapter
Ultra‑low quiescent current: 11 µA typical
Wide voltage range: 2.5 V to 28 V for both input and battery
Reverse battery protection
Internal gate clamp protects P‑MOSFET
Manual CTL control input to force main switch off
STAT open‑drain status output
Low‑profile 1 mm TSOT‑23 package
AEC‑Q100 qualified (optional versions)

3. Absolute Maximum Ratings

Parameter	Rating	Unit
Supply Voltage (VIN)	–14 to +36	V
Voltage (VIN to SENSE)	–28 to +28	V
GATE voltage	–0.3 V to (VIN/SENSE + 0.3 V)	V
STAT voltage	–0.3 to +36	V
Continuous sink current	50	mA
Operating Junction Temp	–55 to +150	°C
Storage Temperature	–65 to +150	°C
Lead Temp (soldering, 10 s)	300	°C

4. Electrical Specifications (@ TA = –40°C to +85°C, VIN = 12 V)

Supply & Current

Parameter	Min	Typ	Max	Unit
Supply Range (VIN/SENSE)	2.5	—	28	V
Quiescent Current (forward)	—	11	19	µA
Quiescent Current (reverse)	—	10	19	µA
Quiescent Current (CTL high)	—	7	13	µA

Regulation Thresholds

Parameter	Min	Typ	Max	Unit
Forward Regulation Voltage (VFR)	10	20	32	mV
Reverse Turn‑Off Threshold (VRTO)	10	20	32	mV

Gate Drive

Parameter	Min	Typ	Max	Unit
Gate Clamp Voltage (VG(ON))	6.3	7.0	7.7	V
Gate Off Voltage (VG(OFF))	0.13	0.25	—	V
Gate Turn‑On Time (CGATE = 1 nF)	—	110	175	µs
Gate Turn‑Off Time (CGATE = 1 nF)	—	13	22	µs

Status & Control

Parameter	Min	Typ	Max	Unit
STAT Sink Current	6	10	17	µA
CTL Input Low Voltage (VIL)	—	—	0.35	V
CTL Input High Voltage (VIH)	0.635	—	—	V
CTL Input Pull‑Down Current	1	3.5	5.5	µA

5. Pin Configuration (6‑Lead TSOT‑23, Top View)

Pin	Name	Function
1	VIN	Primary supply input (battery)
2	GND	Ground
3	CTL	Manual control (high = MOSFET off)
4	STAT	Open‑drain status (low = aux power present)
5	GATE	Gate drive for external P‑channel MOSFET
6	SENSE	Auxiliary supply sense input (adapter/load)

6. Functional Description

Ideal Diode Operation: Drives external P‑MOSFET to maintain ~20 mV forward drop, replacing lossy diodes.
Automatic Switchover: When SENSE > VIN by ~20 mV, turns main MOSFET off and loads from auxiliary supply.
CTL Pin: Logic high forces main MOSFET off and pulls STAT low.
STAT Pin: Sinks ~10 µA when auxiliary power is detected; open‑drain output.
Gate Clamp: Internal clamp protects the MOSFET gate from overvoltage.
Reverse Protection: Blocks reverse current and prevents back‑feed from auxiliary to battery.

7. Typical Applications

Battery/DC adapter automatic switchover
Power OR’ing for UPS and redundant supplies
Multi‑battery load sharing
High‑side power switch with logic control
Low‑loss reverse‑protection switches
Portable electronics, industrial, automotive systems

8. Ordering Information

Part Number: LTC4412ES6#TRPBF
Temperature: –40°C to +85°C
Package: 6‑Lead TSOT‑23
Packing: Tape‑and‑Reel
RoHS: Lead‑free, halogen‑free

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