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Texas Instruments TPIC74100QPWPRQ1
- Part No.:
- TPIC74100QPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPIC74100QPWPRQ1.pdf
- Description:
- IC REG BUCK BOOST 5V 1A 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,974
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Product details
Overview
TPIC74100QPWPRQ1 from Texas Instruments is an AEC-Q100 qualified automotive buck/boost switch-mode regulator with integrated power switches, delivering 5 V ±3% output across 1.5 V–40 V input range, supporting 1-A load in normal mode and featuring programmable reset delay, undervoltage alarm (AOUT), and EMI-reducing frequency modulation. It serves as primary 5-V supply for infotainment systems and body electronics.
For engineers reviewing the TPIC74100QPWPRQ1 datasheet, TPIC74100QPWPRQ1 pinout, TPIC74100QPWPRQ1 application, or TPIC74100QPWPRQ1 equivalent, key selection considerations include its dual-mode buck/boost operation, 440 kHz switching frequency with ±20% accuracy, programmable slew rate via SCR0/SCR1, thermal shutdown at 160°C–200°C, and HTSSOP-20 package with exposed thermal pad.
Technical Context
The TPIC74100QPWPRQ1 implements voltage-mode control with internal high-side and low-side MOSFETs (Q1–Q4), using external LC components to regulate VOUT. Its buck/boost transition occurs automatically between 5.0 V and 5.9 V input, maintaining regulation under cranking conditions.
It integrates a clock modulator (Rmod-controlled, 28 kHz typical) to spread spectral energy, programmable reset timer (REST pin, 2.2 ms–150 ms), and open-drain alarm/reset outputs (AOUT, RESET) with deglitching. Slew rate (SCR0/SCR1) and low-power mode (CLP) enable EMI and efficiency tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.5 V to 40 V on Vdriver pin - supports automotive cold-crank (1.5 V) and load-dump (40 V) transients |
| Output Voltage | 5 V ±3% in buck/boost crossover or low-power mode - maintains regulation during engine start-up and stop-start cycles |
| Max Output Current | 1 A at Vdriver ≥7 V - sufficient for powering microcontrollers, CAN transceivers, and display logic |
| Switching Frequency | 440 kHz typical, modulated 270–680 kHz - reduces peak EMI emissions via frequency spreading |
| Reset Threshold | 4.51 V–4.79 V on VOUT - ensures reliable system reset when 5-V rail falls outside tolerance |
| Alarm Threshold | 2.3 V–2.58 V on AIN pin - configurable undervoltage detection for battery monitoring |
| Thermal Shutdown | 160°C–200°C junction temperature - protects against sustained overload or poor heatsinking |
| Package | HTSSOP-20 (6.5 mm × 4.4 mm) with exposed thermal pad - enables efficient PCB heat dissipation in space-constrained modules |
Pinout & Package
TPIC74100QPWPRQ1 uses a thermally enhanced 20-pin HTSSOP package (PWP), with exposed thermal pad recommended to be connected to GND for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCR1, SCR0 | Slew rate configuration inputs | Select fast/medium-fast/medium-slow/slow Q1 gate drive to balance EMI vs. efficiency |
| Vdriver | Main unregulated input | Accepts 1.5 V–40 V automotive supply; powers internal regulators and switches |
| L1, L2 | Inductor connection points | Interface external 22 µH–100 µH inductor; L1 requires Schottky diode to GND |
| VOUT | Primary regulated 5-V output | Delivers up to 1 A; requires 22 µF–470 µF low-ESR output capacitor |
| 5Vg | Switched 5-V auxiliary output | Current-limited (400 mA), enabled via 5Vg_ENABLE; self-protects during short-circuit |
| RESET, AOUT | Open-drain status outputs | Assert low on fault; require external pull-up for interfacing with MCU reset/interrupt pins |
| REST | Reset timer capacitor node | Programs reset assertion delay (2.2 ms–150 ms) using 2.2 nF–150 nF capacitor |
| AIN | Alarm threshold reference input | Configures undervoltage trip point via resistor divider; hysteresis = 200 mV |
| CLP | Low-power mode control | Enables pulse-frequency modulation (PFM) below 7 V input to reduce quiescent current |
| ENABLE, 5Vg_ENABLE | Digital enable inputs | Logic-level (0 V / >2.5 V) control of main regulator and 5Vg switch independently |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualification | Qualified for automotive applications including HBM ESD (±800 V on L2/VOUT/5Vg; ±2000 V on other pins) and CDM Level C4B |
| Buck/boost automatic transition | Seamlessly switches between modes within 5.0 V–5.9 V Vdriver window to maintain 5-V regulation during cranking |
| EMI reduction architecture | Integrated clock modulator (28 kHz typical) + programmable slew rate (SCR0/SCR1) lowers peak conducted emissions |
| Integrated protection functions | Thermal shutdown (160°C–200°C), internal current limiting (1.75 A peak normal mode), and RESET deglitch (8–12.5 µs) |
| Low-power operation | CLP pin enables PFM mode drawing only 3.55 mA avg input current at 5 mA load, extending battery life in always-on systems |
| Robust 5Vg switched output | Internal 135–225 mΩ switch with current limiting prevents false RESET assertion during capacitive load turn-on |
Applications
| Automotive Infotainment Head Unit | Body Control Module (BCM) |
|---|---|
Use Scenario: Powering SoC, display driver, audio codec, and USB PHY in head unit during engine cranking (1.5 V–6 V battery). IC Role / Device Role / Timing Role: Primary 5-V buck/boost regulator providing stable rail despite wide input excursions; manages RESET timing for safe SoC boot. Use Value: Maintains 5 V ±3% output down to 1.5 V input, eliminating need for external pre-regulator and reducing BOM count. | Use Scenario: Supplying microcontroller, LIN transceiver, and sensor interface in door module with low quiescent current requirement. IC Role / Device Role / Timing Role: Dual-rail regulator delivering VOUT (1 A) and 5Vg (400 mA); CLP pin enables low-power PFM mode during sleep. Use Value: Reduces standby current to 10–20 µA (ENABLE = low) and 3.55 mA (CLP active), meeting OEM <100 µA sleep spec. |
| Instrument Cluster Display | Telematics Control Unit (TCU) |
Use Scenario: Generating clean 5-V supply for TFT LCD controller and backlight LED driver in digital cluster with EMI-sensitive analog circuits. IC Role / Device Role / Timing Role: Regulator with frequency modulation (Rmod) and slew-rate control (SCR0/SCR1) minimizing conducted EMI near RF receivers. Use Value: Achieves >10 dB EMI reduction vs. fixed-frequency designs, passing CISPR 25 Class 5 without added shielding. | Use Scenario: Providing isolated 5-V rails for cellular modem, GNSS receiver, and CAN FD controller in TCU operating across -40°C to 125°C ambient. IC Role / Device Role / Timing Role: AEC-Q100 qualified regulator with 125°C max ambient rating and thermal shutdown protecting against enclosure overheating. Use Value: Eliminates need for external thermal monitoring circuitry while ensuring continuous operation in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck/boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480-Q1 | Fixed 2.1-MHz frequency, no buck/boost auto-transition; requires external compensation; higher Iq (25 µA vs. 10–20 µA) | Best for compact layouts needing high-frequency operation but lacks cranking support below 3 V | Choose LM61480-Q1 only if board space is critical and input never drops below 3 V |
| TPS63060-Q1 | Higher efficiency at light loads (PFM mode), but no integrated alarm/reset outputs or slew-rate control; smaller 16-pin WQFN package | Suitable for battery-powered telematics where supervision signals are handled externally | Choose TPS63060-Q1 when supervisory features are redundant and efficiency >90% at 10 mA is prioritized |
Compared with LM61480-Q1 and TPS63060-Q1, the TPIC74100QPWPRQ1 uniquely combines cranking-capable buck/boost regulation, integrated RESET/AOUT supervision, and EMI-tunable slew/frequency control in a single AEC-Q100 package-making it optimal for infotainment and cluster applications requiring robustness and system-level integration.
Availability
TPIC74100QPWPRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, instrument clusters, and body control modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for TPIC74100QPWPRQ1 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
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in automotive-grade power management ICs.
The TPIC74100QPWPRQ1 belongs to TI's automotive switch-mode regulator product line, designed specifically for robust 5-V power delivery in infotainment, cluster, and body electronics under harsh vehicle electrical conditions.
FAQ
What is the minimum input voltage required for TPIC74100QPWPRQ1 to start regulating?
The TPIC74100QPWPRQ1 starts regulation at 5 V on Vdriver when delivering 600 mA load, but can sustain regulation down to 1.5 V input in low-power mode. Startup requires sufficient charge on input capacitor and proper sequencing of ENABLE and CLP pins per datasheet Section 7.4.2.
How does the TPIC74100QPWPRQ1 handle the transition between buck and boost modes?
The TPIC74100QPWPRQ1 automatically transitions between buck and boost based on Vdriver voltage and load: it starts in boost mode below 5.8 V, switches to buck above 5.8 V, and reverts to boost when Vdriver falls into the 5.0 V–5.9 V window and VOUT drops to 4.9 V. This ensures continuous 5-V regulation during engine cranking.
Can the TPIC74100QPWPRQ1 drive a capacitive load on the 5Vg output without asserting RESET?
Yes. The TPIC74100QPWPRQ1 incorporates internal current limiting on the 5Vg switch (rDS(on) = 135–225 mΩ) that prevents inrush-induced voltage droop from triggering RESET. During short-circuit, it enters chopping mode-increasing ripple but maintaining VOUT regulation.
What external components are mandatory for basic TPIC74100QPWPRQ1 operation?
Mandatory components include: one 4.7-nF ceramic bootstrap capacitor (Cboot1), one 22–470-µF low-ESR output capacitor on VOUT, one 22–100-µH inductor between L1/L2 with Schottky diode to GND on L1, and one 2.2–150-nF capacitor on REST for reset timing. Optional but recommended: Rmod resistor for EMI modulation and AIN divider resistors for alarm threshold.
Is the TPIC74100QPWPRQ1 pin-compatible with any earlier TI regulators?
No. The TPIC74100QPWPRQ1 has a unique 20-pin HTSSOP pinout optimized for buck/boost topology and integrated supervision features. It is not pin-compatible with TPIC2101, TPS63060-Q1, or LM61480-Q1 due to differing pin assignments, functionality (e.g., SCR0/SCR1, REST, CLP), and internal architecture.
TPIC74100QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 440kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HTSSOP
TPIC74100QPWPRQ1 FAQ
1.How can I place an order for TPIC74100QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPIC74100QPWPRQ1 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 TPIC74100QPWPRQ1 reliable?
The price and inventory of TPIC74100QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPIC74100QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPIC74100QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPIC74100QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPIC74100QPWPRQ1?
TPIC74100QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPIC74100QPWPRQ1 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 TPIC74100QPWPRQ1?
For technical support, including TPIC74100QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPIC74100QPWPRQ1 requirements.
6.How does Aetrix verify that TPIC74100QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPIC74100QPWPRQ1 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 TPIC74100QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPIC74100QPWPRQ1?
All TPIC74100QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPIC74100QPWPRQ1, 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 TPIC74100QPWPRQ1 part is unused and in its original packaging.
Return procedure for TPIC74100QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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