My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4826ELT+T
- Part No.:
- MAX4826ELT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 6-WFDFN
- Datasheet:
-
MAX4826ELT+T.pdf
- Description:
- IC CURRENT LIMITING 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,417
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX4826ELT+T from Maxim Integrated is a 50mA current-limiting load switch with latchoff fault response, 0.7Ω on-resistance, and dual open-drain flags (FFLG and NOLD), designed for power rail control in portable electronics where overcurrent protection and no-load detection are critical.
For engineers reviewing the MAX4826ELT+T datasheet, MAX4826ELT+T pinout, MAX4826ELT+T application, or MAX4826ELT+T equivalent, this device is selected for compact battery-powered systems requiring guaranteed current limiting, thermal shutdown, reverse-current protection, and precise no-load threshold detection at 10mA.
Technical Context
The MAX4826ELT+T implements a forward-current limit comparator with 14ms blanking time to suppress transient faults during hot-swap or capacitive load turn-on; it enters permanent latchoff upon sustained overcurrent, requiring ON pin toggle or VIN cycle to reset.
It integrates undervoltage lockout (2.2V rising threshold), thermal shutdown at +150°C with 15°C hysteresis, and reverse-current limiting up to 120mA - all monitored via dedicated FFLG and NOLD open-drain outputs referenced to external pullups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 50mA min - guarantees safe operation under sustained overload without external sensing |
| On-Resistance | 0.7Ω typ at +25°C - minimizes voltage drop and power loss in 3.3V/5V rails |
| No-Load Threshold | 10mA max - enables reliable detection of disconnected or standby loads |
| Supply Range | +2.3V to +5.5V - supports single-cell Li-ion to USB-powered systems |
| Blanking Time | 14ms min - prevents false FFLG assertion during startup transients or hot-swap events |
| Quiescent Current | 65µA typ - ensures low standby power in always-on subsystems |
| Shutdown Current | 0.01µA max - enables deep power-down for extended battery life |
Pinout & Package
Package: 6-pin µDFN (1mm × 1.5mm), RoHS-compliant, bottom-exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | High-side input rail connection; requires 0.1µF ceramic bypass to GND |
| 2 GND | Ground Reference | Primary return path for internal current sense and logic; connects to thermal pad |
| 3 OUT | Switched Output | Delivers current-limited power to load; requires 0.1µF ceramic bypass to GND |
| 4 FFLG | Fault Flag Output | Open-drain output pulled low after 14ms overcurrent/thermal/UVLO fault; needs external pullup to IN |
| 5 NOLD | No-Load Flag Output | Open-drain output pulled low when load current falls below 10mA; needs external pullup to ≤+5.5V |
| 6 ON | Enable Control | Active-high logic input; drives high to enable switch; low forces 0.01µA shutdown mode |
Key Features
| Feature | Design Value |
|---|---|
| Latchoff Fault Response | Permanently disables switch on overcurrent until ON pin is toggled or VIN cycled - prevents uncontrolled retry in persistent faults |
| Reverse-Current Protection | Shuts off switch if VOUT-to-VIN reverse current exceeds 120mA - protects upstream sources from backfeed |
| Thermal Shutdown | Immediate FFLG assertion and switch disable at +150°C junction temperature - prevents silicon damage under sustained overload |
| Undervoltage Lockout | Disables switch below 2.2V VIN - avoids erratic behavior during brownout or soft-start conditions |
| Fast Fault Detection | 5µs short-circuit response time - limits energy dissipation during hard shorts |
Applications
| GPS Systems | Cell Phones |
|---|---|
Use Scenario: Power management for GPS RF front-end modules during location acquisition and standby modes. IC Role / Device Role / Timing Role: Load switch controlling 3.3V bias rail to LNA and downconverter, with real-time overcurrent and disconnection monitoring. Use Value: Prevents system reset due to antenna short or ESD-induced latchup while enabling automatic no-load sleep entry. | Use Scenario: Controlled power delivery to camera flash LED driver ICs during burst illumination. IC Role / Device Role / Timing Role: High-side current-limited switch isolating flash power rail from main PMIC, with fault flag signaling to baseband processor. Use Value: Guarantees 50mA compliance during flash capacitor charging, avoiding PMIC current-limit violations and thermal throttling. |
| Digital Still Cameras | MP3 Players |
Use Scenario: Power sequencing for image sensor interface circuitry including MIPI CSI-2 PHY and timing controller. IC Role / Device Role / Timing Role: Precision load switch enabling/disabling sensor core voltage with 10mA no-load detection to confirm sensor deactivation. Use Value: Eliminates phantom current draw in sensor-off state and provides deterministic fault reporting for firmware-driven diagnostics. | Use Scenario: Battery rail isolation for audio codec and DAC subsystems during playback pause or Bluetooth link maintenance. IC Role / Device Role / Timing Role: Low-RON load switch managing 3.3V supply to audio signal chain, with NOLD flag confirming zero-load condition before deep-sleep entry. Use Value: Reduces quiescent current to 0.01µA in shutdown, extending playback time by >12% in intermittent-use scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limiting load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4828ELT+T | 100mA current limit, same 6-pin µDFN package, latchoff behavior | Higher load current capability; not suitable where 50mA limit is required for safety or regulation | Select MAX4828ELT+T only when downstream load demands exceed 50mA but remain ≤100mA |
| TPS22921YZPR | 50mA current limit, 0.85Ω RON, no NOLD flag, 1.2ms blanking time | Lacks no-load detection and has shorter blanking - less robust for hot-swap or capacitive loads | Choose TPS22921YZPR only when NOLD functionality is unnecessary and faster fault response is acceptable |
Compared with MAX4826ELT+T, MAX4828ELT+T offers higher current capacity but identical fault handling; TPS22921YZPR trades no-load detection and longer blanking for smaller footprint and lower cost in simpler applications.
Availability
MAX4826ELT+T is available at Aetrix Electronics and suitable for GPS systems, cell phones, digital still cameras, and MP3 players requiring stable component supply, long-term lifecycle support, and guaranteed current-limit performance across -40°C to +85°C.
Supply support for MAX4826ELT+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 designs precision analog, mixed-signal, and power management ICs for demanding industrial, communications, and consumer applications.
The MAX4826–MAX4831 family was developed specifically for space-constrained portable electronics needing integrated current limiting, no-load detection, and fault flagging in ultra-small packages.
FAQ
What is the guaranteed current-limit threshold for MAX4826ELT+T?
The MAX4826ELT+T guarantees a minimum forward-current limit of 50mA across its operating temperature range (-40°C to +85°C). This value is tested and specified per the datasheet's Electrical Characteristics table under "Forward-Current Limit" with RL = 10Ω. The device remains within this limit regardless of input voltage between +2.3V and +5.5V, ensuring consistent protection for sensitive downstream loads.
Does MAX4826ELT+T support reverse-current protection?
Yes, MAX4826ELT+T provides reverse-current protection with a guaranteed limit of 120mA when VOUT − VIN < 0.5V. If reverse current exceeds this threshold for longer than the 14ms blanking time, the switch opens and asserts FFLG low. This feature prevents backfeed from loaded outputs into the input rail, protecting upstream power sources such as batteries or PMICs in bidirectional power architectures.
How does the latchoff behavior of MAX4826ELT+T differ from autoretry variants like MAX4827ELT+T?
MAX4826ELT+T uses latchoff fault response: once an overcurrent fault persists past the 14ms blanking time, the switch turns off permanently and remains latched off until the ON pin is toggled low-then-high or VIN is cycled below UVLO (~2.2V). In contrast, MAX4827ELT+T automatically retries after tRETRY (~196–840ms), making MAX4826ELT+T preferable where uncontrolled re-enabling could risk system damage.
What is the function of the NOLD pin on MAX4826ELT+T?
The NOLD pin on MAX4826ELT+T is an open-drain no-load flag output that pulls low when load current drops below 10mA - indicating disconnection, standby, or fault-free idle state. It requires an external pullup resistor (to IN or another supply ≤+5.5V) and remains high-impedance when ON = low or during fault conditions. This enables firmware to detect true no-load states without polling current sensors, reducing system power and complexity.
Can MAX4826ELT+T operate from a 2.5V supply?
Yes, MAX4826ELT+T operates from +2.3V to +5.5V, so 2.5V is fully supported. At 2.5V, quiescent current remains 65µA typical, on-resistance increases to ≤1.3Ω over temperature, and undervoltage lockout releases at ~2.2V (with 100mV hysteresis). All key functions - current limiting, FFLG/NOLD flagging, thermal shutdown - remain fully operational, making it suitable for single-cell Li-ion (2.7–4.2V) and regulated 2.5V rail applications.
MAX4826ELT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Limiting
- Sensing Method:
- -
- Accuracy:
- -
- Voltage - Input:
- 2.3V ~ 5.5V
- Current - Output:
- 50mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (1.5x1)
MAX4826ELT+T FAQ
1.How can I place an order for MAX4826ELT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4826ELT+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 MAX4826ELT+T reliable?
The price and inventory of MAX4826ELT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4826ELT+T is usually 5 days.
3.What payment methods are accepted for MAX4826ELT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4826ELT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4826ELT+T?
MAX4826ELT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4826ELT+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 MAX4826ELT+T?
For technical support, including MAX4826ELT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4826ELT+T requirements.
6.How does Aetrix verify that MAX4826ELT+T is sourced from the original manufacturer or authorized distributors?
All MAX4826ELT+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 MAX4826ELT+T meets industry standards.
7.What is the process for return or replacement of MAX4826ELT+T?
All MAX4826ELT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4826ELT+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 MAX4826ELT+T part is unused and in its original packaging.
Return procedure for MAX4826ELT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4826ELT+T Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
