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NXP Semiconductors TDA3617J/N1C,112
- Part No.:
- TDA3617J/N1C,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 9-SIP Formed Leads
- Datasheet:
-
TDA3617J/N1C,112.pdf
- Description:
- IC MULT VOLT REG 9-SIL
- Quantity:
- Payment:
- Shipping:
Inventory:2,910
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Product details
Overview
TDA3617J/N1C,112 from NXP Semiconductors (formerly Philips) is a triple-output automotive-grade voltage regulator IC with independent enable control for each regulator, delivering fixed 9.0 V/1.3 A, 5.0 V/600 mA, and 3.3 V/300 mA outputs. It features foldback current limiting, load dump protection up to 50 V, reverse polarity safety down to −18 V, and an open-collector HOLD output for microprocessor interface in engine control units.
For engineers reviewing the TDA3617J/N1C,112 datasheet, TDA3617J/N1C,112 pinout, TDA3617J/N1C,112 application, or TDA3617J/N1C,112 equivalent, key selection criteria include its 3-regulator independence, VP supply range (−18 V to +50 V), thermal protection, quiescent current ≤40 µA in standby, and compatibility with automotive battery transient conditions including jump-start (30 V/10 min) and ISO 7637-2 load dump pulses.
Technical Context
The TDA3617J/N1C,112 integrates three independent linear regulators with Schmitt-trigger enable inputs and individual foldback current limit protection. Each regulator has dedicated voltage thresholds (e.g., VREG1 = 9.0 V ±5%, VREG2 = 5.0 V ±5%, VREG3 = 3.3 V ±5%) and distinct current limits (1.3 A, 0.6 A, 0.3 A).
Its HOLD output functions as an open-collector status signal indicating out-of-regulation on any enabled regulator, with hysteresis-based VP monitoring (rising threshold ~6.8 V, falling ~4.5 V). The device operates across −40 °C to +85 °C ambient and supports thermal shutdown at 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | −18 V to +50 V - withstands reverse battery connection and ISO 7637-2 load dump transients without latch-up or damage |
| Regulator 1 Output | 9.0 V ±5% @ 1.3 A - powers ignition modules or sensor biasing requiring stable mid-rail voltage |
| Regulator 2 Output | 5.0 V ±5% @ 600 mA - supplies microcontroller I/O or CAN transceivers with low-noise regulation |
| Regulator 3 Output | 3.3 V ±5% @ 300 mA - delivers logic-level power for embedded peripherals with tight tolerance |
| Quiescent Current | ≤40 µA in standby - enables ultra-low-power sleep mode in vehicle ECU systems |
| HOLD Output Type | Open-collector - allows wired-OR connection with other regulator HOLD signals for system-level power-good monitoring |
| Thermal Protection | Active shutdown at 175 °C junction - prevents thermal runaway during overload or poor heatsinking |
Pinout & Package
Package: DBS9P - plastic DIL-bent-SIL power package with 9 leads (lead length 12 mm), SOT157-2 outline, designed for through-hole mounting and high-power dissipation (Rth(j-c) = 2 K/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Ven3 (Pin 1) | Enable input for Regulator 3 | Active-high digital control; ≥1.8 V enables 3.3 V output; <1.2 V disables with <400 mV residual leakage |
| Ven1 (Pin 2) | Enable input for Regulator 1 | Independent control of 9 V rail; enables/disables without affecting Reg2 or Reg3 operation |
| VP (Pin 3) | Main supply input | Accepts −18 V to +50 V; internal protection blocks reverse current and clamps load dump energy |
| REG1 (Pin 4) | Regulator 1 output | 9.0 V regulated output with 0.5–1.0 V dropout; foldback-limited to 1.3 A max continuous |
| REG3 (Pin 5) | Regulator 3 output | 3.3 V output with local temperature sensing; foldback-limited to 300 mA max |
| REG2 (Pin 6) | Regulator 2 output | 5.0 V output with 1.0–1.5 V dropout at 600 mA; optimized for low-noise MCU core supply |
| HOLD (Pin 7) | Power-good status output | Open-collector; pulled low when any enabled regulator is out-of-regulation; high-impedance when all disabled |
| GND (Pin 8) | Ground reference | Common return for all regulators and enable inputs; must be low-inductance connection for noise immunity |
| Ven2 (Pin 9) | Enable input for Regulator 2 | Independent digital control of 5 V rail; supports sequenced power-up in multi-rail systems |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent regulators | Enables flexible power sequencing and fault isolation-failure in one regulator does not affect others |
| Foldback current limiting | Reduces power dissipation during short circuit: e.g., Reg1 drops from 1.3 A to ~250 mA at full short, minimizing thermal stress |
| Load dump protection | Automatically disables regulators at VP > 20 V during 50 ms/50 V transients-no external TVS required |
| Reverse polarity safe | Operates down to −18 V supply without destructive reverse current-eliminates need for series diode |
| Hold output with hysteresis | Provides robust power-good signaling with 2.3 V typical hysteresis-prevents chatter during VP brown-out recovery |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Centralized power management for 16-bit MCU, fuel injector drivers, and oxygen sensor heaters in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Primary triple-rail regulator supplying 9 V (ignition), 5 V (MCU I/O), and 3.3 V (ADC reference) with synchronized enable control. Use Value: Eliminates need for three discrete regulators and external protection circuitry-reduces BOM count by ≥7 components and PCB area by 35%. |
Use Scenario: Powering door module microcontrollers, window motor drivers, and LED interior lighting in automotive body electronics. IC Role / Device Role / Timing Role: Provides isolated, sequenced 5 V and 3.3 V rails with HOLD signal used to gate CAN transceiver startup until stable. Use Value: Enables wake-on-LIN functionality with <40 µA standby current-extends battery life during vehicle sleep mode beyond 120 days. |
| Transmission Control Unit (TCU) | Advanced Driver Assistance System (ADAS) Sensor Hub |
Use Scenario: Supplying solenoid driver ICs, gear position sensors, and TCU MCU in automatic transmission systems exposed to harsh electrical environments. IC Role / Device Role / Timing Role: Delivers 9 V for high-side drivers and 5 V for communication interfaces while surviving load dump and jump-start events. Use Value: Withstands 50 V/50 ms load dump without derating-meets ISO 16750-2 Pulse 5b requirements without external clamping. |
Use Scenario: Powering radar preprocessing MCU, camera ISP, and CAN FD interface in compact ADAS domain controllers. IC Role / Device Role / Timing Role: Supplies clean 3.3 V for high-speed digital logic and 5 V for analog front-end biasing with <150 µV cross-talk noise between rails. Use Value: Achieves <70 dB supply ripple rejection at 3 kHz-ensures ADC SNR > 72 dB in time-of-flight radar signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-output automotive regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLF35584QVVS1 | Quad-output (3.3 V/5 V/9 V/12 V), integrated watchdog and reset generator; SPI interface; higher cost and complexity | Requires firmware integration for configuration; suited for ASIL-B systems needing diagnostic coverage | Select when functional safety (ISO 26262) and programmable sequencing are required-TDA3617J/N1C,112 offers simpler, pin-strapped operation |
| MAX16922ATP+T | Dual-output (5 V/3.3 V only); no 9 V rail; includes boost converter for cold-crank support; smaller 20-pin TQFN package | Lacks regulator for high-voltage peripherals; requires external 9 V solution for ignition circuits | Choose for space-constrained infotainment head units where 9 V is not needed-TDA3617J/N1C,112 remains optimal for legacy ECU platforms requiring native 9 V |
Compared with TLF35584QVVS1 and MAX16922ATP+T, the TDA3617J/N1C,112 provides unmatched simplicity for fixed-rail automotive regulation-no configuration overhead, no external components for load dump protection, and direct compatibility with existing 9 V–5 V–3.3 V ECU architectures.
Availability
TDA3617J/N1C,112 is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control units requiring stable component supply under AEC-Q100 Grade 2 conditions (−40 °C to +105 °C junction).
Supply support for TDA3617J/N1C,112 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with heritage from Philips Semiconductors' analog power portfolio.
The TDA3617J/N1C,112 belongs to NXP's automotive power management IC family, engineered specifically for robust, low-complexity multi-rail regulation in engine and chassis control systems exposed to severe battery transients.
FAQ
What is the maximum load dump voltage the TDA3617J/N1C,112 can withstand?
The TDA3617J/N1C,112 withstands load dump pulses up to 50 V for 50 ms with rise time ≥2.5 ms per ISO 7637-2 Pulse 5a. During such events, internal circuitry disables all regulators to prevent damage-no external TVS diode is required. This rating is confirmed in the Limiting Values table on page 5 of the 2002 datasheet.
Does the TDA3617J/N1C,112 support independent enable/disable of each regulator?
Yes-the TDA3617J/N1C,112 provides three dedicated enable pins: Ven1 (Pin 2) for Regulator 1, Ven2 (Pin 9) for Regulator 2, and Ven3 (Pin 1) for Regulator 3. Each accepts 0–5 V logic levels, with defined thresholds (Vi(on) ≥1.8 V, Vi(off) ≤1.2 V), enabling precise power sequencing in multi-rail systems without cross-interference.
What is the quiescent current of the TDA3617J/N1C,112 in standby mode?
In standby mode-defined as all enable inputs (Ven1/Ven2/Ven3) held <1 V-the TDA3617J/N1C,112 draws ≤40 µA total quiescent current (Iq(tot)), with typical value of 5 µA at VP = 14.4 V. This ultra-low current enables extended battery life in vehicle sleep states, as verified in the Quick Reference Data table on page 2.
How does the HOLD output function in the TDA3617J/N1C,112?
The HOLD output (Pin 7) is an open-collector signal that pulls low when any enabled regulator is out-of-regulation (e.g., due to overcurrent, overtemperature, or VP undervoltage). When all regulators are disabled, HOLD enters high-impedance state. Its hysteresis (2.3 V typical) prevents oscillation during VP recovery, and it supports wired-OR with other regulator HOLD signals for system-level power-good monitoring.
Is the TDA3617J/N1C,112 qualified for automotive use?
Yes-the TDA3617J/N1C,112 meets AEC-Q100 stress test requirements for automotive grade 2 (−40 °C to +105 °C operating junction temperature) and is designed for engine bay and chassis applications. Its specifications-including reverse polarity safety to −18 V, load dump survival, and thermal shutdown at 175 °C-align with ISO 16750-2 and ISO 7637-2 standards for automotive electrical systems.
TDA3617J/N1C,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 9-SIP Formed Leads
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Processor
- Current - Supply:
- 5µA
- Voltage - Supply:
- 9.5V ~ 17.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 9-PDBS
TDA3617J/N1C,112 FAQ
1.How can I place an order for TDA3617J/N1C,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA3617J/N1C,112 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 TDA3617J/N1C,112 reliable?
The price and inventory of TDA3617J/N1C,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA3617J/N1C,112 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA3617J/N1C,112 transactions.
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4.How is shipping managed for TDA3617J/N1C,112?
TDA3617J/N1C,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA3617J/N1C,112 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 TDA3617J/N1C,112?
For technical support, including TDA3617J/N1C,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA3617J/N1C,112 requirements.
6.How does Aetrix verify that TDA3617J/N1C,112 is sourced from the original manufacturer or authorized distributors?
All TDA3617J/N1C,112 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 TDA3617J/N1C,112 meets industry standards.
7.What is the process for return or replacement of TDA3617J/N1C,112?
All TDA3617J/N1C,112 units undergo pre-shipment inspection (PSI). If there is an issue with TDA3617J/N1C,112, 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 TDA3617J/N1C,112 part is unused and in its original packaging.
Return procedure for TDA3617J/N1C,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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