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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Gate Drivers

Analog Devices Inc./Maxim Integrated MAX14922ATE+T

Name: MAX14922ATE+T
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX14922ATE+T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MAX14922ATE+T

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Gate Drivers

Package:: 16-WFQFN Exposed Pad

Datasheet:: MAX14922ATE+T.pdf

Description:: IC GATE DRVR HIGH-SIDE 16TQFN

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Product details

Overview

MAX14922ATE+T from Maxim Integrated is a high-side n-channel FET controller for industrial digital outputs, enabling precise current-limited switching of ground-connected inductive loads (e.g., solenoids, brakes) from +9V to +70V supplies. It integrates a 5V/50mA linear regulator, charge pump for fast gate drive, and active current limiting via external sense resistor with 30mV threshold. Designed for robust operation up to +125°C ambient.

For engineers reviewing the MAX14922ATE+T datasheet, MAX14922ATE+T pinout, MAX14922ATE+T application, or MAX14922ATE+T equivalent, this page delivers verified technical context, real-world diagnostic behavior, validated package mapping, confirmed thermal shutdown at 150°C, and accurate auto-retry timing based on CBLANK capacitance - all critical for industrial high-side switch design and BOM validation.

Technical Context

The MAX14922ATE+T implements a high-side switch control architecture using an integrated charge pump to drive low-R_ON nMOS FETs at up to 50kHz, with gate turn-on propagation delay <20µs and gate-source on-voltage of VS +11.9V to VS +14.1V. Its current-limiting loop actively regulates V_GS during overcurrent, maintaining load current at I_CL = V_CL/R_S where V_CL = 30mV (typ).

Diagnostic functionality includes independent monitoring paths: COMP input compares system voltage against 1.0V internal reference to generate LO output; OV detects VDD >39V (typ); OVCURR asserts low during current limit; RDY signals readiness by going low under undervoltage, thermal warning (>110°C), thermal shutdown (>150°C), or charge-pump overload - all with defined debounce times (200µs).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	+9V to +70V continuous - supports wide industrial DC bus voltages including 24V and 48V systems without external regulation.
Current Limit Threshold	30mV (typ) at SNS - sets precise load current via external sense resistor (e.g., 15mΩ yields 2A limit).
Operating Temperature	−40°C to +125°C ambient - qualified for harsh industrial environments including motor control cabinets and factory automation.
Package	16-TQFN, 3mm × 3mm, 0.5mm pitch - compact footprint with exposed pad for thermal dissipation (θ_JA = 43.3°C/W on 4-layer board).
Gate Drive Propagation	<20µs IN-to-G rise/fall - enables fast switching of low-Q_g FETs (≤50nC) for efficient inductive load control.
Integrated Regulator	5.0V ±1% @ 0–50mA - powers microcontrollers or logic; short-circuit protected and shuts down during thermal fault.
Inductive Clamping	−70V at S pin - allows use of ground-referenced TVS diodes to absorb high-energy flyback without supply dependency.

Pinout & Package

MAX14922ATE+T is housed in a 3mm × 3mm, 16-pin TQFN package with exposed thermal pad (EP), RoHS-compliant, and rated for −40°C to +125°C operation. The package supports high-power density layouts and efficient heat transfer via soldered EP connection to PCB ground plane.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground return	Primary reference for all analog and digital circuitry; must be low-impedance connection to system ground.
2 V5	5V LDO output	Regulated 5V supply capable of 50mA; requires 1µF bypass capacitor to GND for stability.
3 VL	Logic supply input	Accepts 2.5V–5.5V CMOS-compatible logic supply; powers IN, LO, RDY, OVCURR, THW, OV inputs/outputs.
4 LO	Comparator output	Push-pull output indicating COMP input voltage relative to 1.0V threshold - used for supply/load voltage monitoring.
5 RDY	Ready status	Open-drain output pulled low during fault conditions (UVLO, overcurrent, thermal warning/shutdown, charge-pump failure).
6 IN	Switch control input	CMOS-compatible enable signal: HIGH closes high-side switch, LOW opens it; features 200kΩ internal pulldown.
7 COMP	Voltage monitor input	Analog input referenced to 1.0V internal comparator - used with resistive divider to monitor VDD or FET source voltage.
8 OVCURR	Overcurrent indicator	Open-drain output asserted low when load current exceeds programmed limit - remains low until fault clears.
9 THW	Thermal warning	Open-drain output low when die temperature exceeds 110°C - provides early warning before shutdown at 150°C.
10 OV	Overvoltage indicator	Open-drain output low when VDD >39V (typ); does not disable switch - intended for system-level response coordination.
11 tBLANK	Auto-retry timing	Analog input setting blanking time (0.2–100ms) via external capacitor; grounding disables auto-retry.
12 G	Gate drive output	High-voltage gate driver output (VS +11.9V to VS +14.1V) with 3.5mA sourcing capability - directly drives nMOS FET gate.
13 S	FET source input	High-impedance input connected to nMOS source terminal; rated for −70V to +76V - accepts clamped inductive kickback.
14 SNS	Current sense input	High-impedance analog input measuring voltage drop across external sense resistor (V_CL = 30mV typ) to set current limit.
15 VDD	Main supply input	+9V to +70V power input; requires 10µF bypass capacitor to GND for EMC and transient suppression.
16 CP	Charge-pump capacitor	Connects to 1µF/16V capacitor between CP and VDD - generates boosted gate drive voltage for fast FET switching.
EP	Exposed pad	Thermal and electrical ground connection - must be soldered to large PCB copper area for thermal management and noise reduction.

Key Features

Feature	Design Value
Ultra-fast inductive turn-off	Supports −70V clamping at S pin using ground-referenced TVS - enables rapid demagnetization without supply dependency.
Active current limiting	Regulates V_GS in real time to hold load current at user-defined level (I_CL = 30mV/R_S) during overcurrent events.
Auto-retry protection	Configurable blanking time (0.2–100ms) via C_BLANK; after timeout, cycles FET OFF for ~50× blanking time until fault clears.
Multi-rail fault monitoring	Dedicated open-drain outputs for overcurrent (OVCURR), thermal warning (THW), overvoltage (OV), and system readiness (RDY).
Integrated 5V LDO	Delivers up to 50mA with UVLO (3.8V), short-circuit protection, and automatic shutdown during thermal fault.
Wide logic supply range	VL input accepts 2.5V–5.5V - compatible with 3.3V and 5V microcontrollers without level-shifting.

Applications

Industrial Digital Outputs	Motor Holding Brakes
Use Scenario: PLC output module driving 24V solenoid valves in factory automation. IC Role / Device Role / Timing Role: High-side switch controller managing load current, providing overcurrent and thermal diagnostics to programmable logic controller. Use Value: Enables safe, current-limited switching of inductive loads with real-time fault reporting via OVCURR and RDY outputs - eliminating need for discrete current sensing and protection circuitry.	Use Scenario: Emergency brake engagement in servo-driven CNC axes during power loss. IC Role / Device Role / Timing Role: Fast-turn-off high-side controller ensuring immediate brake activation with −70V inductive clamping at S pin. Use Value: Guarantees reliable brake hold under worst-case inductive energy release, while RDY signal confirms operational readiness before motion commands are issued.
Relay and Solenoid Drivers	High-Side Switches
Use Scenario: Automotive test bench simulating 12V/24V relay coil actuation with diagnostic feedback. IC Role / Device Role / Timing Role: Current-regulated high-side driver with configurable blanking time (tBLANK) to distinguish inrush from sustained overcurrent. Use Value: Prevents nuisance tripping during relay pull-in while detecting true coil shorts via OVCURR assertion after blanking period expires.	Use Scenario: Redundant power distribution unit (PDU) for industrial IoT gateway requiring fault-isolated 48V outputs. IC Role / Device Role / Timing Role: Core high-side switch controller with OV, THW, and RDY outputs feeding centralized health monitoring MCU. Use Value: Provides comprehensive diagnostics - including supply overvoltage detection at 39V and thermal warning at 110°C - enabling predictive maintenance and graceful shutdown before catastrophic failure.

Industrial Digital Outputs

Motor Holding Brakes

Use Scenario: PLC output module driving 24V solenoid valves in factory automation.

IC Role / Device Role / Timing Role: High-side switch controller managing load current, providing overcurrent and thermal diagnostics to programmable logic controller.

Use Value: Enables safe, current-limited switching of inductive loads with real-time fault reporting via OVCURR and RDY outputs - eliminating need for discrete current sensing and protection circuitry.

Use Scenario: Emergency brake engagement in servo-driven CNC axes during power loss.

IC Role / Device Role / Timing Role: Fast-turn-off high-side controller ensuring immediate brake activation with −70V inductive clamping at S pin.

Use Value: Guarantees reliable brake hold under worst-case inductive energy release, while RDY signal confirms operational readiness before motion commands are issued.

Relay and Solenoid Drivers

High-Side Switches

Use Scenario: Automotive test bench simulating 12V/24V relay coil actuation with diagnostic feedback.

IC Role / Device Role / Timing Role: Current-regulated high-side driver with configurable blanking time (tBLANK) to distinguish inrush from sustained overcurrent.

Use Value: Prevents nuisance tripping during relay pull-in while detecting true coil shorts via OVCURR assertion after blanking period expires.

Use Scenario: Redundant power distribution unit (PDU) for industrial IoT gateway requiring fault-isolated 48V outputs.

IC Role / Device Role / Timing Role: Core high-side switch controller with OV, THW, and RDY outputs feeding centralized health monitoring MCU.

Use Value: Provides comprehensive diagnostics - including supply overvoltage detection at 39V and thermal warning at 110°C - enabling predictive maintenance and graceful shutdown before catastrophic failure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side switch controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
INFINEON BTS724G	Integrated high-side switch (not controller); built-in MOSFET; 60V max V_DS; no external FET flexibility.	Lower BOM count for ≤4A fixed-current applications; lacks programmable current limit and separate gate drive.	Select MAX14922ATE+T when external low-R_ON FETs are needed for >4A, ultra-low conduction loss, or custom thermal/power trade-offs.
TEXAS INSTRUMENTS TPS27082L	Controller with 5.5V–60V range; 25mV current sense threshold; no integrated 5V LDO; smaller 10-pin WSON package.	Better suited for space-constrained 3.3V logic systems; lacks thermal warning output and −70V clamping capability.	Choose MAX14922ATE+T for industrial environments requiring −70V inductive clamping, 125°C operation, and integrated 5V supply for auxiliary circuitry.

Compared with BTS724G and TPS27082L, the MAX14922ATE+T uniquely combines programmable current limiting, −70V clamping, integrated 5V/50mA LDO, and thermal warning output - making it optimal for high-reliability industrial digital outputs where external FET selection, diagnostic granularity, and wide supply range are critical.

Availability

MAX14922ATE+T is available at Aetrix Electronics and suitable for industrial digital outputs, motor holding brakes, relay/solenoid drivers, and high-side switch applications requiring stable component supply, long-term lifecycle support, and guaranteed performance across −40°C to +125°C.

Supply support for MAX14922ATE+T 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

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications applications - emphasizing reliability, integration, and ruggedized performance.

The MAX14922ATE+T belongs to Maxim's industrial high-side switch controller product line, engineered specifically for fault-tolerant digital output modules in programmable logic controllers, distributed I/O systems, and safety-critical electromechanical actuation.

FAQ

What is the maximum supply voltage the MAX14922ATE+T can handle continuously?

The MAX14922ATE+T supports a continuous operating supply voltage range of +9V to +70V on its VDD pin. Absolute maximum rating is +75V continuous and +85V for 100µs transients. This makes the MAX14922ATE+T suitable for 24V and 48V industrial DC systems, including brownout and surge scenarios within specification limits.

How does the MAX14922ATE+T implement current limiting, and what is the sense threshold voltage?

The MAX14922ATE+T implements active current limiting by regulating the gate-source voltage of the external nMOS FET when the voltage across the external sense resistor (connected between VDD and SNS) exceeds the internal threshold of 30mV (typical). This corresponds to I_CL = 30mV / R_S, allowing precise, user-defined current limits - e.g., 2A with a 15mΩ resistor.

Does the MAX14922ATE+T include thermal protection, and what are the trip points?

Yes, the MAX14922ATE+T includes two-tier thermal protection: thermal warning (THW) asserts low at +110°C (typical), providing early fault indication, and thermal shutdown (TCSHDN) activates at +150°C (typical), forcing the external FET OFF and disabling the 5V LDO. Hysteresis is 10°C for both thresholds, ensuring stable recovery after cooling.

Can the MAX14922ATE+T drive low-R_ON FETs efficiently, and what gate drive capability does it provide?

Yes, the MAX14922ATE+T is optimized for low-R_ON nMOS FETs with total gate charge (Q_g) up to 50nC. Its integrated charge pump delivers gate-source on-voltage of VS +11.9V to VS +14.1V and provides 3.5mA sourcing and 3.4mA sinking capability - enabling sub-20µs IN-to-G propagation delays and efficient 20–50kHz switching.

What diagnostic outputs does the MAX14922ATE+T provide, and how are they used?

The MAX14922ATE+T provides five dedicated open-drain diagnostic outputs: OVCURR (overcurrent), THW (thermal warning), OV (overvoltage), RDY (system ready), and LO (comparator output). Each signals specific fault or status conditions - e.g., RDY goes low during undervoltage, overcurrent, or thermal shutdown - enabling real-time system-level monitoring and coordinated response by host microcontrollers.

MAX14922ATE+T Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Package/Case:: 16-WFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: -

Driven Configuration:: High-Side

Channel Type:: Single

Number of Drivers:: 1

Gate Type:: N-Channel MOSFET

Voltage - Supply:: 9V ~ 70V

Logic Voltage - VIL, VIH:: 1.65V, 3.65V

Current - Peak Output (Source, Sink):: -

Input Type:: Non-Inverting

High Side Voltage - Max (Bootstrap):: -

Rise / Fall Time (Typ):: -

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-TQFN (3x3)

MAX14922ATE+T FAQ

1.How can I place an order for MAX14922ATE+T through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX14922ATE+T 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 MAX14922ATE+T reliable?

The price and inventory of MAX14922ATE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14922ATE+T is usually 5 days.

3.What payment methods are accepted for MAX14922ATE+T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14922ATE+T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX14922ATE+T?

MAX14922ATE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX14922ATE+T 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 MAX14922ATE+T?

For technical support, including MAX14922ATE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14922ATE+T requirements.

6.How does Aetrix verify that MAX14922ATE+T is sourced from the original manufacturer or authorized distributors?

All MAX14922ATE+T 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 MAX14922ATE+T meets industry standards.

7.What is the process for return or replacement of MAX14922ATE+T?

All MAX14922ATE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14922ATE+T, 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 MAX14922ATE+T part is unused and in its original packaging.

Return procedure for MAX14922ATE+T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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