My Inquiry
My Account
NXP Semiconductors TLVH431DMQDBZR,215
- Part No.:
- TLVH431DMQDBZR,215
- Manufacturer:
- NXP Semiconductors
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TLVH431DMQDBZR,215.pdf
- Description:
- IC VREF SHUNT ADJ 0.75% TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,504
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLVH431DMQDBZR,215 from NXP Semiconductors is a D-grade (0.75 % reference voltage tolerance), low-voltage, three-terminal adjustable shunt regulator in SOT753 package, operating from −40 °C to +125 °C, with 1.24 V reference voltage, 0.15 Ω typical dynamic cathode-anode impedance, and 70 mA sink current capability - used in isolated feedback loops of automotive-grade SMPS.
For engineers reviewing the TLVH431DMQDBZR,215 datasheet, TLVH431DMQDBZR,215 pinout, TLVH431DMQDBZR,215 application, or TLVH431DMQDBZR,215 equivalent, this page delivers verified electrical parameters, mirrored-pin SOT753 terminal mapping, AEC-Q100 Grade 1 qualification status, and precision shunt regulation design guidance for high-reliability power systems.
Technical Context
The TLVH431DMQDBZR,215 implements an internal bandgap reference and transconductance amplifier driving an NPN output stage, enabling precise voltage regulation via external resistor divider between cathode and reference pins. Its mirrored pinout (Pin 1 = cathode, Pin 2 = reference, Pin 3 = anode, Pins 4–5 = n.c.) distinguishes it from standard SOT23 variants and supports optimized PCB layout for thermal and noise performance in feedback paths.
It operates as a 3-terminal shunt regulator with programmable output voltage from 1.24 V to 18 V, featuring 4 mV typical reference voltage drift over −40 °C to +125 °C, 0.08 mA to 70 mA cathode current range, and low 0.19–0.30 µA reference current - making it suitable for precision current sinking and stable closed-loop control in automotive power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage (Vref) | 1.240 V ±0.75 % at 10 mA, 25 °C - enables accurate output setting across full temperature range |
| Cathode-Anode Voltage Range | 1.24 V to 18 V - supports wide output adjustment without external series pass transistor |
| Sink Current Capability | 0.08 mA to 70 mA - sufficient for direct error amplification in optocoupler-coupled SMPS feedback |
| Dynamic Impedance (ZKA) | 0.15 Ω typical (SOT753) - ensures minimal output voltage perturbation under load transients |
| Temperature Range | −40 °C to +125 °C - qualified for under-hood automotive applications per AEC-Q100 Grade 1 |
| Reference Voltage Drift | 4 mV max over full temperature range - maintains tight regulation in thermally aggressive environments |
| Output Noise | Low - critical for minimizing jitter in feedback-controlled switching regulators |
Pinout & Package
SOT753 (SC-74A) plastic surface-mounted package with 5 leads; pins 1 and 2 are not connected; pin 3 = cathode, pin 4 = reference, pin 5 = anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | n.c. | No connection - electrically isolated; must remain unconnected on PCB |
| Pin 2 | n.c. | No connection - electrically isolated; must remain unconnected on PCB |
| Pin 3 | Cathode (k) | Main current sink node; connects to SMPS transformer secondary or error amplifier output |
| Pin 4 | Reference (REF) | Sense input for regulated voltage divider; high-impedance node requiring clean routing |
| Pin 5 | Anode (a) | Return path to ground or low-side rail; thermal pad connection point for heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| 0.75 % reference voltage tolerance | Enables tighter output voltage accuracy than standard (1.5 %) or A-grade (1 %) variants without calibration |
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient temperatures up to +125 °C and long-term reliability in safety-critical power systems |
| Mirrored pinout (SOT753) | Separates reference and cathode terminals spatially to reduce noise coupling in high-gain feedback networks |
| 0.15 Ω dynamic cathode-anode impedance | Minimizes regulation error during fast load steps - critical for maintaining stability in isolated flyback converters |
| Low 0.19–0.30 µA reference current | Reduces divider resistor power loss and improves efficiency in battery-backed or ultra-low-power designs |
Applications
| Automotive SMPS Feedback | Precision Current Sink |
|---|---|
|
Use Scenario: Isolated feedback loop in 12 V automotive DC/DC converter using optocoupler coupling. IC Role / Device Role / Timing Role: Shunt regulator providing precise reference voltage to optocoupler LED anode, enabling closed-loop output voltage regulation. Use Value: Maintains ±1 % output accuracy over temperature and line variations due to 0.75 % Vref tolerance and low drift. |
Use Scenario: Constant-current biasing of laser diodes in ADAS sensor modules. IC Role / Device Role / Timing Role: Precision shunt-based current sink where cathode current equals Vref/Rsense. Use Value: Delivers stable 10–50 mA current with <±0.5 % variation across −40 °C to +125 °C. |
| On-Board Voltage Regulation | Programmable Shunt Limiter |
|
Use Scenario: Local 3.3 V regulation for microcontroller I/O supply in engine control unit. IC Role / Device Role / Timing Role: Adjustable shunt regulator replacing Zener diode, set via external resistors to 3.3 V nominal. Use Value: Achieves lower temperature coefficient and sharper knee than discrete Zener, improving system-level voltage stability. |
Use Scenario: Overvoltage protection clamp in industrial 24 V power rail monitoring. IC Role / Device Role / Timing Role: Programmable shunt limiter triggering at 25.5 V using resistor divider network. Use Value: Provides repeatable, temperature-stable clamping threshold with <±10 mV variation over full operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLVH431DQDBZR | SOT23 package, normal pinout (Pin 1 = REF), same D-grade tolerance and temp range | Limited PCB space; requires different footprint and routing; no n.c. pins | Select when board area is constrained and mirrored pinout is unnecessary |
| TLVH431AQDBVR | SOT753 package, A-grade (1 %) tolerance, same pinout and temp range | Lower cost requirement where ±1 % output accuracy suffices | Select for non-safety-critical industrial applications needing reduced BOM cost |
Compared with TLVH431DQDBZR, TLVH431DMQDBZR,215 offers identical electrical specs but adds mirrored pinout and n.c. terminals for enhanced noise immunity in feedback paths; versus TLVH431AQDBVR, it provides tighter 0.75 % reference tolerance essential for automotive-grade output accuracy.
Availability
TLVH431DMQDBZR,215 is available at Aetrix Electronics and suitable for automotive power supplies, isolated SMPS feedback circuits, and precision current-limiting applications requiring stable component supply across extended temperature ranges.
Supply support for TLVH431DMQDBZR,215 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in high-performance mixed-signal and RF solutions for automotive, industrial, and communication markets.
The TLVH431 family was designed specifically for precision shunt regulation in automotive-grade power conversion systems, emphasizing AEC-Q100 qualification, wide temperature operation, and low-drift reference performance.
FAQ
What is the reference voltage tolerance of TLVH431DMQDBZR,215?
The TLVH431DMQDBZR,215 has a D-grade reference voltage tolerance of ±0.75 % at 25 °C, measured at 10 mA cathode current. This tolerance holds across its full operating temperature range of −40 °C to +125 °C, making TLVH431DMQDBZR,215 suitable for high-accuracy automotive power regulation where tighter voltage stability is required compared to standard or A-grade variants.
Does TLVH431DMQDBZR,215 support isolated feedback in flyback converters?
Yes, TLVH431DMQDBZR,215 is explicitly designed for isolated feedback loops in switch-mode power supplies, including flyback topologies. Its low dynamic impedance (0.15 Ω), sharp turn-on characteristic, and AEC-Q100 Grade 1 qualification make TLVH431DMQDBZR,215 ideal for driving optocoupler LEDs in automotive SMPS designs requiring stable regulation across harsh thermal conditions.
What is the pin configuration of TLVH431DMQDBZR,215?
TLVH431DMQDBZR,215 uses SOT753 package with mirrored pinout: Pin 1 and Pin 2 are not connected; Pin 3 is cathode (k); Pin 4 is reference (REF); Pin 5 is anode (a). This differs from standard SOT23 variants and allows physical separation of sensitive reference and high-current cathode nodes to minimize noise coupling in precision feedback paths.
What is the maximum cathode current rating for TLVH431DMQDBZR,215?
The TLVH431DMQDBZR,215 supports a maximum cathode current of 70 mA under recommended operating conditions. Its absolute maximum rating is 80 mA, but sustained operation above 70 mA requires careful thermal management due to power dissipation limits - especially critical in SOT753 package where Ptot derates to 310 mW on standard FR4 PCB at 25 °C ambient.
Is TLVH431DMQDBZR,215 qualified for automotive applications?
Yes, TLVH431DMQDBZR,215 is AEC-Q100 qualified for Grade 1 (−40 °C to +125 °C ambient), with full stress testing including HTOL, TC, and ESD per automotive standards. It is intended for use in engine control units, body electronics, and ADAS power systems where reliability under thermal and electrical stress is mandatory - confirming TLVH431DMQDBZR,215's suitability for production automotive deployment.
TLVH431DMQDBZR,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Shunt
- Output Type:
- Adjustable
- Voltage - Output (Min/Fixed):
- 1.24V
- Voltage - Output (Max):
- 18 V
- Current - Output:
- 70 mA
- Tolerance:
- ±0.75%
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 80 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23 (TO-236AB)
TLVH431DMQDBZR,215 FAQ
1.How can I place an order for TLVH431DMQDBZR,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLVH431DMQDBZR,215 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 TLVH431DMQDBZR,215 reliable?
The price and inventory of TLVH431DMQDBZR,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLVH431DMQDBZR,215 is usually 5 days.
3.What payment methods are accepted for TLVH431DMQDBZR,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLVH431DMQDBZR,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLVH431DMQDBZR,215?
TLVH431DMQDBZR,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLVH431DMQDBZR,215 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 TLVH431DMQDBZR,215?
For technical support, including TLVH431DMQDBZR,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLVH431DMQDBZR,215 requirements.
6.How does Aetrix verify that TLVH431DMQDBZR,215 is sourced from the original manufacturer or authorized distributors?
All TLVH431DMQDBZR,215 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 TLVH431DMQDBZR,215 meets industry standards.
7.What is the process for return or replacement of TLVH431DMQDBZR,215?
All TLVH431DMQDBZR,215 units undergo pre-shipment inspection (PSI). If there is an issue with TLVH431DMQDBZR,215, 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 TLVH431DMQDBZR,215 part is unused and in its original packaging.
Return procedure for TLVH431DMQDBZR,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLVH431DMQDBZR,215 Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
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…
