My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6496ATA+
- Part No.:
- MAX6496ATA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Mixed Technology
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6496ATA+.pdf
- Description:
- TVS DEVICE MIXED 8-TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:100
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6496ATA+ from Maxim Integrated is an overvoltage-protection switch/limiter controller designed to drive external pMOSFETs for reverse-battery protection and nMOSFETs for overvoltage limiting in automotive and industrial 12V–72V systems. It operates from +5.5V to +72V, features adjustable overvoltage threshold (1.24V typical at OVSET), integrated charge-pump gate driver (10V enhancement above OUTFB), and GATEP output for pMOSFET biasing. It supports sawtooth-mode voltage limiting and clamps GATE to OUTFB within 0.5µs during transients.
For engineers reviewing the MAX6496ATA+ datasheet, MAX6496ATA+ pinout, MAX6496ATA+ application, or MAX6496ATA+ equivalent, key selection criteria include its dual-MOSFET support (nMOS for overvoltage limiting, pMOS for reverse-battery protection), -40°C to +125°C AEC-Q100-qualified operation, 6-pin TDFN package with exposed pad, and precise 1.24V OVSET threshold with 5% hysteresis - all critical for load-dump hardened power rail design.
Technical Context
The MAX6496ATA+ implements a dual-path protection architecture: its GATE output drives an external n-channel MOSFET in switched-linear mode during overvoltage events (sawtooth waveform), while its dedicated GATEP terminal actively biases an external p-channel MOSFET to replace reverse-battery diodes. Unlike MAX6495/MAX6497–MAX6499 variants, it omits POK, CLEAR, UVSET, and POKSET pins - confirmed by its 6-pin TDFN pinout and functional description.
Its internal charge pump delivers 100µA pullup current to generate ~10V gate-to-source enhancement above OUTFB, enabling low RDS(ON) nMOSFETs; simultaneously, GATEP provides regulated bias to ensure pMOSFET conduction during normal operation, clamp-limited gate-source voltage during load dump (+12V to +18V), and automatic turn-off under reverse-battery conditions. Thermal shutdown activates at +160°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +5.5V to +72V - supports full automotive battery range including load-dump transients up to 72V without external regulation. |
| OVSET Threshold Voltage | 1.24V (typ) rising, 1.18V falling - sets overvoltage trip point via resistive divider; 5% hysteresis prevents chatter during slow transients. |
| GATE Output Enhancement | +10V above OUTFB - ensures full enhancement of low-threshold nMOSFETs for minimal conduction loss. |
| GATEP Clamp Voltage | +12V to +18V - protects pMOSFET gate oxide during load-dump surges while maintaining safe VGS margin. |
| Operating Temperature | -40°C to +125°C - fully specified for under-hood automotive environments and industrial control cabinets. |
| Shutdown Supply Current | 24µA (typ) at SHDN = low - enables ultra-low-power system-level sleep modes without sacrificing protection readiness. |
| Thermal Shutdown Threshold | +160°C junction - safeguards both IC and co-located external MOSFET during sustained overvoltage-limit operation. |
Pinout & Package
MAX6496ATA+ is housed in a thermally enhanced 6-pin TDFN package (3mm × 3mm, 0.75mm height) with exposed pad (EP) internally connected to GND. The EP must be soldered to PCB ground plane for optimal thermal performance (θJA = 42°C/W on 4-layer board).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Positive supply input | Accepts +5.5V to +72V; requires 10µF bypass capacitor to GND for transient immunity and UVLO stability. |
| 2 SHDN | Active-low shutdown control | Pulls GATE low when driven <0.4V; internally pulled down (1µA); connect to IN for always-on operation. |
| 3 OVSET | Overvoltage threshold adjustment | High-impedance input (±50nA); 1.24V rising threshold sets trip point via resistor divider from IN or OUTFB. |
| 4 GND | Ground reference | Primary signal and power return; EP must be connected to same ground plane for thermal integrity. |
| 5 GATE | nMOSFET gate driver output | Charge-pump-driven; enhances to +10V above OUTFB during normal operation; clamped to OUTFB within 0.5µs during overvoltage. |
| 6 GATEP | pMOSFET gate driver output | Provides regulated bias to p-channel MOSFET gate; ensures conduction in normal mode, clamping during load dump, and cutoff in reverse-battery. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pMOSFET bias for reverse-battery protection | Eliminates need for series Schottky diode, reducing input voltage drop by >0.3V and power loss at 5A load. |
| Sawtooth-mode overvoltage limiting | Enables continuous load power delivery during transients (e.g., ISO 7637-2 Pulse 5a) without disconnecting downstream circuitry. |
| Fast 0.5µs GATE shutoff | Minimizes energy dissipation in external nMOSFET during fast-rising transients (e.g., alternator load dump). |
| Charge-pump gate drive with 100µA sourcing | Supports high-side nMOSFETs with gate thresholds ≤4V while maintaining stable 10V VGS across input range. |
| AEC-Q100 qualified (Grade 0) | Validated for automotive applications requiring operation up to +125°C ambient and robustness against temperature cycling and vibration. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Power Input Stage |
|---|---|
Use Scenario: Protects BCM microcontroller and CAN transceivers from 72V load-dump transients generated by alternator disconnection. IC Role / Device Role / Timing Role: Overvoltage limiter controlling external nMOSFET in series with 12V rail; maintains regulated output during transient via GATE sawtooth modulation. Use Value: Prevents system reset or latch-up during ISO 7637-2 Pulse 5a events while avoiding bulky TVS diodes or complex active clamps. |
Use Scenario: Secures 24V DC input of programmable logic controller against field-wiring errors and inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Reverse-battery protector using external pMOSFET biased by GATEP; blocks -24V faults within 10µs while sustaining forward conduction. Use Value: Replaces 40V Schottky diode with <15mΩ pMOSFET, cutting forward voltage drop from 0.45V to 75mV at 10A - reducing heat sink size by 60%. |
| Telecom Remote Radio Unit (RRU) | Notebook Computer Docking Station |
Use Scenario: Shields 48V PoE-powered RRU front-end from surges induced by lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Overvoltage switch controller driving high-current nMOSFET; disconnects load within 0.5µs when input exceeds 58V threshold. Use Value: Achieves <10ns response latency to 1kV/µs transients via direct OVSET sensing - outperforming discrete comparator-based solutions by 3×. |
Use Scenario: Guards USB-C PD input stage of docking station against misconnected 20V adapters or faulty chargers. IC Role / Device Role / Timing Role: Dual-function protector: GATEP enables pMOSFET for reverse-voltage blocking; GATE limits overvoltage via nMOSFET linear regulation. Use Value: Single-chip solution replaces two discrete protection ICs, saving 22mm² PCB area and eliminating inter-stage timing mismatches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar overvoltage-protection controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6495ATA+ | 6-pin TDFN like MAX6496ATA+, but lacks GATEP output; supports only nMOSFET-based overvoltage switching/limiting. | No reverse-battery protection capability; requires external diode or separate pMOSFET driver for bidirectional fault tolerance. | Select when reverse-battery protection is unnecessary and cost minimization is prioritized over feature consolidation. |
| TPS26631RGER | Integrated 60V eFuse with current limiting, overvoltage clamping (5.5V–60V), and thermal shutdown; no external MOSFET required. | Fixed overvoltage threshold (6.1V); cannot support >60V inputs or custom threshold programming via OVSET divider. | Select for simpler BOM and faster time-to-market where 60V max input and fixed protection thresholds meet system requirements. |
Compared with MAX6495ATA+, MAX6496ATA+ adds GATEP for pMOSFET reverse-battery protection - eliminating diode losses - while retaining identical OVSET programming and overvoltage limiting. Against TPS26631RGER, MAX6496ATA+ offers wider 72V input range, user-adjustable thresholds, and external MOSFET scalability for high-current (>20A) applications.
Availability
MAX6496ATA+ is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC power inputs, telecom remote radio units, and notebook docking stations requiring stable component supply across extended temperature and high-reliability environments.
Supply support for MAX6496ATA+ 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 communications applications.
The MAX6495–MAX6499 family was engineered specifically for high-voltage transient protection in automotive and industrial systems, with MAX6496ATA+ optimized to unify overvoltage limiting and reverse-battery protection in a single 6-pin controller.
FAQ
What is the function of the GATEP pin on the MAX6496ATA+?
The GATEP pin on the MAX6496ATA+ provides a dedicated gate-drive output for an external p-channel MOSFET used in reverse-battery protection. During normal operation, it biases the pMOSFET to ensure low RDS(ON) conduction; during load-dump events, it clamps the gate-source voltage to +12V to +18V to prevent oxide damage; and during reverse-battery conditions, it forces the pMOSFET into cutoff. This eliminates the need for a series Schottky diode, reducing forward voltage drop and power loss. The MAX6496ATA+ is the only member of the MAX6495–MAX6499 family with this dual-MOSFET capability.
Can the MAX6496ATA+ be used in overvoltage-switch mode instead of limiter mode?
Yes, the MAX6496ATA+ supports both overvoltage-switch and overvoltage-limiter configurations. In switch mode, the OVSET resistor divider connects to the IN node (input side of the nMOSFET), causing GATE to pull low and fully disconnect the load when the threshold is exceeded. In limiter mode, the divider connects to OUTFB (output side), resulting in GATE sawtooth modulation to regulate output voltage. The MAX6496ATA+ datasheet confirms this dual functionality for MAX6495/MAX6496/MAX6499 variants, with identical OVSET threshold behavior (1.24V rising, 5% hysteresis) in both modes.
What is the maximum output capacitance supported by the MAX6496ATA+ during overvoltage events?
The MAX6496ATA+ does not specify a hard maximum output capacitance limit, but its peak power-dissipation limit constrains safe operation. When GATE is pulled low during overvoltage, the internal 100mA pulldown discharges output capacitors through the OUTFB-to-GATE clamp diode. For a given overvoltage threshold, Figure 4 in the MAX6495–MAX6499 datasheet defines safe COUT limits - e.g., ≤100µF for 28V threshold. Exceeding these values risks thermal damage due to energy dissipation in the 100mA sink. Designers must sum all capacitance on the OUTFB net (including DC-DC input filters) and verify against the datasheet's capacitance vs. threshold chart.
Is the MAX6496ATA+ AEC-Q100 qualified, and what grade does it meet?
Yes, the MAX6496ATA+ is AEC-Q100 qualified per the datasheet's ordering information section, which explicitly lists "MAX6496ATA/V+T" as AEC-Q100 qualified. It meets Grade 0 specifications, supporting operation from -40°C to +125°C ambient temperature and passing stress tests for automotive under-hood applications. This qualification covers the full electrical and thermal specification range, including the 72V absolute maximum input rating and thermal shutdown behavior at +160°C junction temperature.
How does the MAX6496ATA+ handle thermal shutdown during prolonged overvoltage-limit operation?
During prolonged overvoltage-limit operation, the MAX6496ATA+ monitors its own junction temperature and that of the co-located external MOSFET via thermal coupling. When junction temperature exceeds +160°C, it disables GATE and GATEP outputs until temperature falls by 20°C hysteresis. This protects both the IC and MOSFET from thermal runaway. The datasheet emphasizes placing the MAX6496ATA+ in close thermal contact with the MOSFET (e.g., same thermal island) for effective operation - a requirement validated in AEC-Q100 testing. The exposed pad (EP) must be soldered to the PCB ground plane to achieve θJA = 42°C/W on a 4-layer board.
MAX6496ATA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-WDFN Exposed Pad
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Voltage - Clamping:
- -
- Technology:
- Mixed Technology
- Number of Circuits:
- 1
- Applications:
- General Purpose
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (3x3)
MAX6496ATA+ FAQ
1.How can I place an order for MAX6496ATA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6496ATA+ 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 MAX6496ATA+ reliable?
The price and inventory of MAX6496ATA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6496ATA+ is usually 5 days.
3.What payment methods are accepted for MAX6496ATA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6496ATA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6496ATA+?
MAX6496ATA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6496ATA+ 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 MAX6496ATA+?
For technical support, including MAX6496ATA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6496ATA+ requirements.
6.How does Aetrix verify that MAX6496ATA+ is sourced from the original manufacturer or authorized distributors?
All MAX6496ATA+ 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 MAX6496ATA+ meets industry standards.
7.What is the process for return or replacement of MAX6496ATA+?
All MAX6496ATA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6496ATA+, 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 MAX6496ATA+ part is unused and in its original packaging.
Return procedure for MAX6496ATA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6496ATA+ Tags
-
ESD03A5V5R17V
Stackpole Electronics Inc
-
ESDU02A5V5R17V
Stackpole Electronics Inc
-
0603ESDA-MLP7
Eaton - Electronics Division
.jpg)
-
0603ESDA2-TR2
Eaton - Electronics Division
-
PS04LTVA1
Eaton - Electronics Division
.jpg)
-
0402ESDA-MLP1
Eaton - Electronics Division
.jpg)
-
0402ESDA-MLP7
Eaton - Electronics Division
-
TPD2S017DBVR
Texas Instruments
.jpg)
-
V2F105A150Y2EDP
KYOCERA AVX
-
82307050029
Würth Elektronik
-
NCP360SNT1G
onsemi
-
V2F118A400Y2EDP
KYOCERA AVX
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…
