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Analog Devices Inc./Maxim Integrated MAX4883BETB+T
- Part No.:
- MAX4883BETB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Power Supply Controllers, Monitors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX4883BETB+T.pdf
- Description:
- OVERVOLTAGE PROTECTION CONTROLLE
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
The MAX4883BETB+T from Maxim Integrated is an overvoltage protection (OVP) controller with integrated 0.7A current-limited switch, designed to safeguard low-voltage systems (e.g., Li+-powered portable electronics) against input surges up to 28V. It features a fixed 5.6V overvoltage trip level, undervoltage lockout at 4.35V, and active-low open-drain OV and FLAGI fault flags - used in battery charger front-end protection where adapter voltage transients must be blocked before reaching sensitive PMICs or baseband processors.
For engineers reviewing the MAX4883BETB+T datasheet, MAX4883BETB+T pinout, MAX4883BETB+T application, or MAX4883BETB+T equivalent, key selection criteria include its latch-off current-limit behavior (vs. continuous limit), TDFN-10 package thermal performance, GATE charge-pump drive capability for external n-channel MOSFETs, and compatibility with 1.2V–28V input rails in space-constrained consumer power management designs.
Technical Context
The MAX4883BETB+T implements a dual-threshold protection architecture: IN voltage is continuously monitored against a precise 5.6V OVLO threshold (±100mV hysteresis) and 4.35V UVLO threshold (±150mV hysteresis). When either condition is violated, the internal charge pump disables the GATE output, turning off the external n-channel MOSFET within 5.8µs (OV assertion delay) and holding it off until EN, CB, or IN is cycled.
Its 0.7A forward current limit is enforced via internal sensing between BTA and BTB terminals, with a 20–80ms blanking time window before latching off on sustained overload. The device integrates separate control paths for EN (active-low global disable) and CB (active-low internal switch enable), enabling independent sequencing of system power-up and current-limit activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overvoltage Trip Level | 5.6V ±0.1V - triggers immediate GATE shutdown to protect downstream 3.3V/1.8V logic from adapter surges. |
| Current Limit | 0.7A typical - limits fault current to prevent PCB trace damage or thermal runaway in portable battery charging paths. |
| Startup Delay | 20–80ms - allows AC-DC adapter voltage to stabilize before enabling GATE, avoiding false OV trips during power-on. |
| GATE Drive Voltage | ~2×VIN up to 5.6V - enables use of low-cost, low-RDS(ON) n-channel MOSFETs without requiring external high-side drivers. |
| OV & FLAGI Outputs | Open-drain, active-low, 6V-tolerant - interface directly with 1.8V/3.3V microcontroller GPIOs using standard pull-up resistors. |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade operation in handheld devices exposed to ambient thermal cycling. |
| Supply Current | 240–380µA - ultra-low quiescent draw preserves battery life in always-on protection circuits. |
Pinout & Package
MAX4883BETB+T is housed in a 3mm × 3mm, 0.8mm-thick 10-pin TDFN package with exposed pad (EP) internally connected to GND. The package supports high thermal dissipation when soldered to a PCB ground plane, critical for sustained 0.7A switching in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | Bypassed to GND with ≥1µF ceramic capacitor; withstands up to 28V transient input while providing ESD immunity. |
| 2 EN | Active-Low Enable | Drives external MOSFET gate OFF and disables OV/FLAGI outputs when pulled high; tied low for default operation. |
| 3 GATE | Charge-Pump Output | Drives external n-MOSFET gate to ~2×VIN; turns OFF instantly upon OV/UV fault detection. |
| 4 BTA | Switch Input Terminal | Connects to source of external n-MOSFET; supplies internal circuitry (except charge pump); bypassed with 0.1µF capacitor. |
| 5 CB | Active-Low Switch Control | Enables/disables internal current-limit function independently of EN; latched OFF after current fault timeout. |
| 6 GND | Ground Reference | Primary electrical ground connection; EP must be soldered to ground plane but not used as sole return path. |
| 7 BTB | Switch Output Terminal | Connects to drain of external n-MOSFET; carries protected load current up to 0.7A. |
| 8 FLAGI | Current-Fault Flag | Asserts low after 50ms blanking time if load current remains at 0.7A; requires EN/CB/IN toggle to reset. |
| 9 N.C. | No Connection | Not internally bonded; left unconnected on PCB. |
| 10 OV | Over/Undervoltage Flag | Asserts low on IN < 4.35V or > 5.6V; remains low for 50ms after GATE re-enables to avoid chatter during recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Latch-off current limiting | 0.7A limit sustains for ≤50ms blanking time, then latches OFF until EN/CB/IN cycle - prevents thermal damage during sustained overload. |
| Integrated charge-pump GATE driver | Generates ~2×VIN gate voltage up to 11.2V, enabling efficient use of low-VGS(th) n-channel MOSFETs without external boost circuitry. |
| Dual fault flag outputs | Separate OV (input rail fault) and FLAGI (load current fault) signals allow independent system-level diagnostics and recovery handling. |
| 1.2V–28V wide input range | Operates from single-cell Li+ minimum (1.2V) up to worst-case adapter surge (28V), covering full battery+charger operational envelope. |
| Thermal shutdown protection | Triggers at +150°C junction temperature with +40°C hysteresis - provides final fail-safe against PCB-level overheating. |
Applications
| Smartphone Battery Charging | Digital Still Camera Power Path |
|---|---|
|
Use Scenario: AC adapter connects to smartphone during fast-charging; input voltage spikes to 6.2V due to line transient. IC Role / Device Role / Timing Role: MAX4883BETB+T monitors IN, asserts OV within 5.8µs, and pulls GATE low to disconnect charger IC from battery within 7µs. Use Value: Prevents overvoltage stress on 3.3V PMIC and 1.2V application processor, eliminating need for TVS diodes at system input. |
Use Scenario: DSLR camera uses USB-powered accessory port; hot-plug causes 5.8V overshoot on VBUS line. IC Role / Device Role / Timing Role: MAX4883BETB+T detects OV condition, disables GATE, and asserts FLAGI if accessory draws >0.7A during startup inrush. Use Value: Enables graceful power rejection and firmware-controlled retry, avoiding brownout resets or flash memory corruption. |
| MP3 Player Adapter Interface | PDA USB Host Port Protection |
|
Use Scenario: Portable MP3 player accepts third-party wall adapters with poor regulation; input sags to 4.1V under load. IC Role / Device Role / Timing Role: MAX4883BETB+T triggers UVLO at 4.35V, pulling GATE low to isolate DC-DC converter until stable 5V resumes. Use Value: Eliminates erratic behavior caused by marginal input voltage, improving user experience during battery recharge cycles. |
Use Scenario: PDA acts as USB host for peripherals; connected device draws 0.85A peak, exceeding safe current limit. IC Role / Device Role / Timing Role: MAX4883BETB+T senses 0.7A limit breach, asserts FLAGI after 50ms blanking, and latches OFF GATE until host firmware resets EN. Use Value: Provides deterministic current fault response compatible with USB 2.0 power delivery constraints and host OS error reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar overvoltage protection controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4883CETB+T | Same 5.6V OVLO and 0.7A current limit, but uses continuous current limiting (no latch-off) until thermal shutdown at 150°C. | Suitable for applications requiring sustained overload tolerance (e.g., motor-driven accessories), not abrupt fault isolation. | Select MAX4883CETB+T only if system firmware cannot handle latch-off reset sequencing and thermal margin is sufficient. |
| TPS259211DRCR | 0.75A current limit, 5.85V OVLO, integrated FET (no external MOSFET required), but no UVLO or FLAGI output. | Reduces BOM count in simpler systems but lacks dual fault signaling and undervoltage detection needed for robust charger handshaking. | Choose TPS259211DRCR for cost-sensitive designs where external MOSFET elimination outweighs loss of diagnostic granularity. |
Compared with MAX4883CETB+T and TPS259211DRCR, the MAX4883BETB+T uniquely combines latch-off current limiting, dual OV/FLAGI flags, and UVLO detection in a 3mm × 3mm footprint - making it optimal for portable systems requiring deterministic fault containment and comprehensive power-rail monitoring.
Availability
MAX4883BETB+T is available at Aetrix Electronics and suitable for smartphone battery charging, digital still camera power path management, and MP3 player adapter interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4883BETB+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 demanding industrial, automotive, and consumer applications.
The MAX4883BETB+T belongs to Maxim's overvoltage protection controller family, engineered specifically for front-end power rail protection in battery-powered portable electronics with strict size, efficiency, and fault-diagnostic requirements.
FAQ
What is the overvoltage trip threshold of the MAX4883BETB+T?
The MAX4883BETB+T has a fixed overvoltage trip level of 5.6V (with ±100mV hysteresis) on the IN pin. This threshold is factory-trimmed and guaranteed over the full -40°C to +85°C operating temperature range. When IN exceeds 5.6V, the device immediately disables the GATE output to turn off the external n-channel MOSFET and asserts the OV flag low. The MAX4883BETB+T does not support adjustable OVLO via external resistors.
Does the MAX4883BETB+T include an integrated MOSFET?
No, the MAX4883BETB+T does not include an integrated power MOSFET. It drives an external n-channel MOSFET via its GATE output, which is generated by an internal charge pump. The device provides current-limiting functionality between its BTA and BTB terminals, but the main power switch must be implemented externally - enabling design flexibility in RDS(ON), voltage rating, and thermal layout. This architecture is confirmed in the Functional Diagram (Figure 7a) and Pin Description section of the MAX4883BETB+T datasheet.
How does the current-limit fault recovery work on the MAX4883BETB+T?
The MAX4883BETB+T implements latch-off current limiting: if load current reaches 0.7A for longer than the 20–80ms blanking time, the internal switch latches OFF and remains disabled until EN, CB, or IN is cycled (i.e., toggled from high-to-low or low-to-high). The FLAGI pin stays asserted low during latch-off. Recovery requires a deliberate system-level reset signal - unlike the MAX4883CETB+T, which limits continuously. This behavior ensures persistent fault isolation in safety-critical portable power paths.
Can the MAX4883BETB+T operate with a 1.2V input supply?
Yes, the MAX4883BETB+T supports an input voltage range of 1.2V to 28V on the IN pin. At 1.2V, the device remains functional with reduced GATE drive voltage (~2.4V), sufficient to bias low-threshold n-channel MOSFETs. Its undervoltage lockout activates at 4.35V, so operation below that level is intentional for brownout detection - not power delivery. This 1.2V minimum is explicitly specified in the Absolute Maximum Ratings table and validated across temperature.
What package type and dimensions does the MAX4883BETB+T use?
The MAX4883BETB+T uses a 10-pin TDFN package (package code T1033-1) measuring 3.0mm × 3.0mm × 0.80mm with an exposed pad (EP) internally connected to GND. The exposed pad must be soldered to a PCB ground plane for thermal performance but cannot serve as the sole ground return - pin 6 (GND) remains the mandatory electrical ground connection. This package is documented in the Package Information section and drawing 21-0137.
MAX4883BETB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Applications:
- Overvoltage Protection Controller
- Voltage - Input:
- -
- Voltage - Supply:
- 1.2V ~ 28V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN-EP (3x3)
MAX4883BETB+T FAQ
1.How can I place an order for MAX4883BETB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4883BETB+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 MAX4883BETB+T reliable?
The price and inventory of MAX4883BETB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4883BETB+T is usually 5 days.
3.What payment methods are accepted for MAX4883BETB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4883BETB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4883BETB+T?
MAX4883BETB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4883BETB+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 MAX4883BETB+T?
For technical support, including MAX4883BETB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4883BETB+T requirements.
6.How does Aetrix verify that MAX4883BETB+T is sourced from the original manufacturer or authorized distributors?
All MAX4883BETB+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 MAX4883BETB+T meets industry standards.
7.What is the process for return or replacement of MAX4883BETB+T?
All MAX4883BETB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4883BETB+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 MAX4883BETB+T part is unused and in its original packaging.
Return procedure for MAX4883BETB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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