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Analog Devices Inc./Maxim Integrated MAX16836ATE+
- Part No.:
- MAX16836ATE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- LED Drivers
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16836ATE+.pdf
- Description:
- IC LED DRVR LIN PWM 350MA 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:123
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Product details
Overview
The MAX16836ATE+ from Maxim Integrated is a high-voltage, 350mA LED current regulator IC designed for automotive-grade HB LED lighting systems. It operates from 6.5V to 40V input, delivers ±3.5% output-current accuracy via differential current-sense inputs, integrates a 5V/4mA regulator, and supports PWM dimming through a high-voltage DIM pin-used in tail lights, CHMSL, and emergency warning systems.
For engineers reviewing the MAX16836ATE+ datasheet, MAX16836ATE+ pinout, MAX16836ATE+ application, or MAX16836ATE+ equivalent, key selection criteria include its -40°C to +125°C automotive temperature range, 16-pin TQFN-EP package with 2°C/W θJC, integrated pass element with 0.55V typical dropout, differential CS± sensing for noise immunity, and thermal/short-circuit protection.
Technical Context
The MAX16836ATE+ implements a linear current-regulation architecture using an internal bipolar pass transistor controlled by a precision differential amplifier comparing VCS+–VCS− against a 200mV reference. Its feedback loop maintains constant LED current independent of VIN or LED forward voltage variation within operating limits.
It features dual control inputs: EN enables/disables regulation globally, while DIM accepts 0.6V–4V logic-level PWM signals to modulate output current without affecting regulation accuracy. The integrated 5V regulator powers external bias circuitry and remains active during DIM-based dimming, enabling auxiliary functions like timer ICs or thermistor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 6.5V to 40V - supports automotive battery transients including 40V load-dump events. |
| Max Output Current | 350mA - programmable via external RSENSE; enables single-string or multi-string HB LED drive. |
| Current Accuracy | ±3.5% - ensures consistent luminance across temperature (-40°C to +125°C) and supply variations. |
| Differential Sense Ref | 200mV ±3.5% - low-voltage sense reduces power loss in RSENSE and improves efficiency. |
| Dropout Voltage | 0.55V typ at 350mA - enables operation with minimal headroom, critical for low-VIN automotive conditions. |
| 5V Regulator Output | 4.85V–5.20V @ 0–4mA - powers microcontrollers, timers, or sensors without external LDO. |
| Thermal Shutdown | 159°C activation with 24°C hysteresis - provides self-recovery protection during overload or short-circuit faults. |
| Shutdown Current | 35µA typ - minimizes quiescent draw in off-state, essential for always-on vehicle modules. |
Pinout & Package
The MAX16836ATE+ is housed in a thermally enhanced 5mm × 5mm, 16-pin TQFN package with exposed pad (EP) connected to GND for optimal heat dissipation (θJA = 30°C/W, θJC = 2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pins 1, 16) | Current-regulated output | Drives LED anode(s); pins internally bonded for parallel current handling and thermal sharing. |
| IN (Pins 2, 3) | Positive input supply | Accepts 6.5V–40V; requires ≥0.1µF ceramic bypass to GND near pin for stability. |
| CS+ (Pin 9) | Differential sense positive | Connects to high-side of RSENSE; enables ground-referenced current sensing with noise rejection. |
| CS− (Pin 10) | Differential sense negative | Connects to low-side of RSENSE; common-mode range up to +4.1V allows high-side sensing topologies. |
| V5 (Pin 11) | +5V regulated output | Supplies up to 4mA; remains active during DIM dimming; shorting to GND disables thermal shutdown. |
| GND (Pin 12) | Power and signal ground | Reference for all analog circuits; EP must be soldered to PCB ground plane for thermal performance. |
| DIM (Pin 13) | PWM dimming input | Logic-level interface (0.6V/4V thresholds); controls output current duty cycle without altering regulation setpoint. |
| EN (Pin 15) | Enable input | High-active enable; pulls output to zero when low; used for system-level on/off control. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pass element | Eliminates external MOSFET, reducing BOM count and layout area while maintaining ±3.5% current accuracy. |
| Wave-shaped PWM edges | Reduces radiated EMI during dimming, easing EMC compliance in automotive lighting modules. |
| Parallel operation support | Multiple MAX16836ATE+ units can be synchronized to drive >350mA loads without external current-sharing resistors. |
| Low 200mV sense reference | Minimizes I²R losses in RSENSE, improving efficiency and thermal margin in compact designs. |
| Automotive temperature grade | Qualified from -40°C to +125°C junction temperature, meeting AEC-Q100 stress test requirements. |
Applications
| Automotive Tail Lights | Emergency Warning Lights |
|---|---|
Use Scenario: Dual-brightness operation for TAIL (dim) and STOP (full) functions in rear lighting clusters. IC Role / Device Role / Timing Role: MAX16836ATE+ regulates LED current and accepts PWM from external timer (e.g., ICM7555) on DIM pin to switch between brightness levels. Use Value: Enables precise, flicker-free dimming without compromising thermal safety or regulation accuracy across wide input voltage swings. | Use Scenario: High-reliability strobe lighting in police, fire, and ambulance vehicles requiring rapid on/off cycling. IC Role / Device Role / Timing Role: MAX16836ATE+ delivers stable 350mA pulses under 200Hz PWM control via DIM, surviving repeated load-dump transients. Use Value: Maintains consistent flash intensity and timing integrity despite harsh electrical environments and ambient temperature extremes. |
| Marine Navigation Indicators | Gasoline Canopy Signage |
Use Scenario: LED-based position and status indicators on boats exposed to salt fog, vibration, and wide thermal cycles. IC Role / Device Role / Timing Role: MAX16836ATE+ drives corrosion-resistant LEDs with its 5V regulator powering local microcontroller logic for status reporting. Use Value: Ensures long-term luminance stability and fault resilience without derating, even at +125°C ambient. | Use Scenario: Outdoor fuel station canopy lighting subject to UV exposure, rain, and wide temperature swings (-40°C to +85°C ambient). IC Role / Device Role / Timing Role: MAX16836ATE+ powers high-lumen LEDs directly from 24V DC distribution, using differential CS± sensing to reject ground noise from adjacent motors/pumps. Use Value: Delivers maintenance-free operation with built-in thermal foldback and short-circuit protection, reducing field failure rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED current regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16834ATE+ | Same 16-pin TQFN package, but rated for 250mA max output and lacks integrated 5V regulator. | Suitable only for lower-current, non-regulator-dependent designs; cannot replace MAX16836ATE+ where 5V bias or >250mA is required. | Select MAX16834ATE+ only if system already provides 5V rail and total LED current ≤250mA. |
| LM3409HVMM/NOPB | External MOSFET controller (not integrated pass), supports up to 1.5A, wider 4.5V–75V input range. | Requires external FET and compensation components; better suited for high-power or buck-based topologies than linear regulation. | Choose LM3409HVMM/NOPB when >350mA output or higher efficiency is mandatory; not drop-in compatible. |
Compared with MAX16834ATE+, the MAX16836ATE+ adds 5V regulation and +100mA current capacity; versus LM3409HVMM/NOPB, it trades external component count and efficiency for simplicity, smaller footprint, and guaranteed ±3.5% accuracy without loop tuning.
Availability
MAX16836ATE+ is available at Aetrix Electronics and suitable for automotive interior lighting, emergency vehicle warning systems, marine navigation indicators, and outdoor signage requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX16836ATE+ 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 MAX16836ATE+ belongs to Maxim's automotive LED driver product line, engineered specifically for robust, high-accuracy current regulation in safety-critical exterior and interior lighting systems.
FAQ
What is the maximum continuous LED current supported by the MAX16836ATE+?
The MAX16836ATE+ supports a guaranteed output current of 350mA under specified conditions (RSENSE = 0.55Ω, TA = -40°C to +125°C). This is achieved using its integrated pass element and 200mV current-sense reference. Operation above 350mA requires paralleling multiple MAX16836ATE+ devices with matched RSENSE values and proper thermal management.
Does the MAX16836ATE+ require an external MOSFET to drive LEDs?
No, the MAX16836ATE+ integrates a bipolar pass element and does not require an external MOSFET. Its internal series regulator handles up to 350mA continuously, simplifying design and reducing board space. External FETs are only needed when using the MAX16836ATE+ in boost/buck-boost configurations or when paralleling for higher current-neither case requires the FET for basic linear regulation.
How does the 5V regulator in the MAX16836ATE+ behave during PWM dimming?
The 5V regulator in the MAX16836ATE+ remains fully active and stable during PWM dimming via the DIM pin-it is unaffected by DIM signal transitions. This allows continuous power delivery to external circuitry (e.g., timers, microcontrollers, or thermistors) even while LED current is being pulsed. However, the 5V output shuts down when EN is pulled low.
Can the MAX16836ATE+ withstand automotive load-dump transients?
Yes, the MAX16836ATE+ is explicitly designed to survive automotive load-dump events up to +40V, matching its absolute maximum input rating (IN to GND: -0.3V to +45V). Its 6.5V–40V operating range and internal protection circuitry ensure reliable operation during transient overvoltage conditions common in 12V and 24V vehicle electrical systems.
What is the purpose of the differential CS+ and CS− pins on the MAX16836ATE+?
CS+ and CS− form a differential current-sense input that measures the voltage across an external RSENSE with high noise immunity. This topology rejects common-mode noise (e.g., ground bounce or EMI) and allows flexible placement of RSENSE-either high-side or low-side-without compromising regulation accuracy. The fixed 200mV reference ensures predictable current programming: ILED = 0.2V / RSENSE.
MAX16836ATE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 6.5V
- Voltage - Supply (Max):
- 40V
- Voltage - Output:
- 39.45V
- Current - Output / Channel:
- 350mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- Lighting, Signage
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (5x5)
MAX16836ATE+ FAQ
1.How can I place an order for MAX16836ATE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16836ATE+ 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 MAX16836ATE+ reliable?
The price and inventory of MAX16836ATE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16836ATE+ is usually 5 days.
3.What payment methods are accepted for MAX16836ATE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16836ATE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16836ATE+?
MAX16836ATE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16836ATE+ 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 MAX16836ATE+?
For technical support, including MAX16836ATE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16836ATE+ requirements.
6.How does Aetrix verify that MAX16836ATE+ is sourced from the original manufacturer or authorized distributors?
All MAX16836ATE+ 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 MAX16836ATE+ meets industry standards.
7.What is the process for return or replacement of MAX16836ATE+?
All MAX16836ATE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16836ATE+, 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 MAX16836ATE+ part is unused and in its original packaging.
Return procedure for MAX16836ATE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16836ATE+ Tags
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