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Texas Instruments TPS613785QWRTERQ1
- Part No.:
- TPS613785QWRTERQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS613785QWRTERQ1.pdf
- Description:
- IC REG BOOST ADJ 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,631
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Product details
Overview
TPS613785QWRTERQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous boost converter with integrated load disconnect, 25-µA quiescent current, 9–12 V fixed output options, and programmable 200 kHz–2.2 MHz switching frequency. It delivers up to 4.8 A peak switch current and supports input voltages from 2.3 V to 14 V - enabling reliable power conversion in automotive body electronics and ADAS camera modules.
For engineers reviewing the TPS613785QWRTERQ1 datasheet, TPS613785QWRTERQ1 pinout, TPS613785QWRTERQ1 application, or TPS613785QWRTERQ1 equivalent, this page provides verified functional specifications, validated pin roles, confirmed automotive-grade thermal and protection behavior, and real-world design implications for low-IQ boost architectures requiring true load isolation and EMI-aware frequency control.
Technical Context
The TPS613785QWRTERQ1 implements fixed-frequency peak current mode control with internal slope compensation and cycle-by-cycle overcurrent limiting. Its architecture integrates high-side, low-side, and isolation FETs (RDS(on) = 50 mΩ / 50 mΩ / 100 mΩ) and supports VIN-to-VOUT operation down to 0 V differential, enabling seamless transition into down-mode when input exceeds output.
It features dual light-load operating modes: auto PFM for efficiency optimization and forced PWM for noise immunity, both selectable via the MODE/SYNC pin. Spread spectrum modulation (±10% frequency dither at 0.4% of fSW) is active only in FPWM mode with free-running oscillator - disabled during external synchronization or PFM operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 14 V - supports wide automotive battery transients including cold-crank (≥2.3 V) and load-dump (≤14 V). |
| Fixed Output Options | 9 V, 10 V, 11 V, 12 V - set by FB resistor divider; no external feedback components needed for these values. |
| Quiescent Current | 25 µA into VIN - enables always-on systems (e.g., eCall backup power) without draining battery during extended sleep. |
| Switching Frequency | 200 kHz to 2.2 MHz - adjustable via FREQ pin resistor; avoids AM band (530–1710 kHz) and enables compact 1 µH inductor use. |
| Peak Switch Current Limit | Programmable 1 A to 4.8 A via ILIM pin resistor - sets maximum inductor ramp current and short-circuit energy handling. |
| Load Disconnect | True input-output isolation during shutdown/fault - eliminates standby leakage and enables safe hot-swap sequencing. |
| Thermal Shutdown | 165°C rising threshold with 20°C hysteresis - protects against sustained overload in enclosed automotive enclosures. |
Pinout & Package
TPS613785QWRTERQ1 is housed in a wettable-flank 3 mm × 3 mm 16-pin WQFN (RTE) package with exposed thermal pad connected to GND for enhanced thermal dissipation in automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Main supply input (2.3–14 V); connects to battery rail or pre-regulated source. |
| BST | Bootstrap supply | Drives high-side FET gate; requires 0.1 µF ceramic capacitor to SW pin. |
| SW | Switching node | Connection point for external inductor; carries high di/dt and voltage swing up to 23 V. |
| MODE/SYNC | Mode control & sync input | Configures auto PFM (low/floating) or forced PWM (high); accepts external clock for system-wide timing alignment. |
| VCC | Internal LDO output | 4.8 V regulated supply for internal circuitry; requires ≥1 µF ceramic decoupling to GND. |
| GND | Power ground | Common return for low-side FET source, thermal pad, and all analog/PGND paths. |
| VO | Isolation FET output | Provides true load disconnect path; connect to load to enable input-output isolation during shutdown. |
| OUT | High-side FET drain | Primary output node; shorting to VO disables isolation but enables higher current delivery. |
| PG | Power good indicator | Open-drain output asserting high when VOUT is within ±5% of target; delays 2.5–4.3 ms after regulation. |
| ILIM | Current limit setting | Resistor-to-GND sets peak switch current (e.g., 20 kΩ → 4.8 A); critical for short-circuit energy management. |
| FB | Feedback input | Senses output voltage via resistor divider; reference voltage is 0.800 V ±12 mV over temperature. |
| COMP | Error amplifier output | Connects external RC network to optimize loop stability across wide VOUT/VIN ratios and load steps. |
| EN | Enable input | Logic-high (>1.2 V) enables device; internal 800 kΩ pull-down ensures default-off state. |
| FREQ | Frequency setting | Resistor-to-GND programs switching frequency (e.g., 18 kΩ → 2.2 MHz); must not float or tie to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive reliability and lifetime requirements for body and ADAS modules. |
| Wettable flank QFN package | Enables automated optical inspection (AOI) of solder joints on production lines - improves yield and field-reliability traceability. |
| Spread spectrum in FPWM mode | Reduces peak EMI amplitude by spreading switching energy across ±10% bandwidth - critical for CISPR 25 Class 5 compliance. |
| Hiccup-mode short-circuit protection | Enters 1.8 ms ON / 67 ms OFF cycling during sustained overload - limits average power dissipation and prevents thermal runaway. |
| True load disconnect | Breaks conductive path between VIN and VOUT during shutdown or fault - eliminates standby current and supports safe power sequencing. |
| Integrated soft-start | 2.5 ms internal ramp limits inrush current during startup - prevents input rail collapse and reduces stress on input capacitors. |
Applications
| Advanced Driver-Assistance System (ADAS) Camera Power | Automotive Emergency Call (eCall) Backup Supply |
|---|---|
|
Use Scenario: Powers 9 V image sensor and ISP in forward-facing ADAS camera module during engine-off battery operation. IC Role / Device Role / Timing Role: Synchronous boost converter with load disconnect - maintains stable 9 V output from 3.3 V–6.5 V battery rail while isolating load during ignition-off. Use Value: 25 µA quiescent current extends vehicle sleep time; 2.2 MHz switching enables <1 mm² solution size with 1 µH inductor and 2.2 µF output cap. |
Use Scenario: Provides regulated 12 V backup power to LTE modem and GNSS receiver during main battery failure or crash event. IC Role / Device Role / Timing Role: Always-on boost regulator with hiccup protection - sustains communication link under transient brownouts and short-circuit faults. Use Value: True load disconnect prevents backup battery drain; 165°C thermal shutdown ensures safe operation in confined dashboard enclosures. |
| Automotive Infotainment Display Backlight | Body Control Module (BCM) LED Driver Bias |
|
Use Scenario: Generates 10 V bias for LCD backlight LED strings in center-stack display, powered from 5 V domain. IC Role / Device Role / Timing Role: Fixed-output boost converter with spread spectrum - delivers clean, low-noise 10 V while minimizing conducted EMI into sensitive audio circuits. Use Value: Programmable 200 kHz–2.2 MHz frequency avoids AM radio interference; auto PFM mode maintains >85% efficiency at 1 mA dimming current. |
Use Scenario: Supplies 11 V bias to high-brightness interior LED drivers in door modules and ambient lighting zones. IC Role / Device Role / Timing Role: Automotive-grade boost controller with programmable current limit - adapts to varying LED string counts and thermal derating profiles. Use Value: ILIM pin resistor allows precise 2.5 A–4.8 A current limit tuning; wettable flank package supports AOI in high-volume BCM assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS613782-Q1 | Same package and pinout; fixed 9–12 V outputs with spread spectrum enabled. | Designed for identical automotive boost applications but lacks disable option for spread spectrum. | Select when EMI reduction is mandatory and no external clock sync is required. |
| TPS613784-Q1 | Same package and pinout; fixed 5.7–8 V outputs, spread spectrum disabled by default. | Targeted at lower-voltage infotainment rails where AM-band avoidance is less critical than cost. | Select for cost-sensitive 6–8 V systems where spread spectrum is unnecessary and PFM-only operation suffices. |
Compared with TPS613785QWRTERQ1, TPS613782-Q1 offers identical EMI mitigation but no spread-spectrum disable option, while TPS613784-Q1 trades EMI performance for lower-voltage flexibility and reduced BOM count - making TPS613785QWRTERQ1 optimal for 9–12 V automotive systems requiring configurable noise control.
Availability
TPS613785QWRTERQ1 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, emergency call (eCall) backup supplies, and infotainment display backlighting requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TPS613785QWRTERQ1 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 leader specializing in analog, embedded processing, and automotive ICs, with decades of automotive qualification expertise and AEC-Q100-compliant manufacturing.
The TPS61378-Q1 family was designed specifically for automotive power conversion where ultra-low quiescent current, true load disconnect, and EMI-robust switching are mandatory - targeting ADAS, body electronics, and telematics subsystems.
FAQ
What is the exact fixed output voltage range supported by the TPS613785QWRTERQ1?
The TPS613785QWRTERQ1 supports four factory-configured fixed output voltages: 9 V, 10 V, 11 V, and 12 V. These are selected using specific resistor values on the FB pin per TI's datasheet Table 4 - for example, 2.0 kΩ yields 9.00 V ±1.5% over temperature. Unlike adjustable variants, no external feedback resistors are required to achieve these outputs, simplifying layout and reducing BOM count.
Does the TPS613785QWRTERQ1 provide true input-to-output isolation during shutdown?
Yes, the TPS613785QWRTERQ1 provides true load disconnect during shutdown or fault conditions via its integrated isolation FET. When EN is low or UVLO triggers, the VO pin is actively disconnected from VIN, reducing leakage current to <5 µA. This behavior is confirmed in Section 7.3.9 of the datasheet and enables safe power sequencing in automotive systems where backfeed must be eliminated.
How is the switching frequency programmed on the TPS613785QWRTERQ1?
The switching frequency of the TPS613785QWRTERQ1 is set by connecting a resistor between the FREQ pin and GND. Using Equation 1 from the datasheet (fSW ≈ 41.9 / (RFREQ + 1.05)), a 18 kΩ resistor yields ~2.2 MHz, while 218 kΩ yields ~200 kHz. The FREQ pin must never be left floating or tied to VCC - doing so invalidates frequency control and may cause erratic operation.
What protection features are integrated into the TPS613785QWRTERQ1?
The TPS613785QWRTERQ1 integrates input undervoltage lockout (2.2 V threshold), output overvoltage protection (19.3–20.5 V trip), hiccup-mode short-circuit protection (1.8 ms ON / 67 ms OFF), thermal shutdown (165°C), and power-good indication. All protections are fully qualified per AEC-Q100 Grade 1 and operate across –40°C to +125°C ambient - ensuring robustness in automotive under-hood and cabin environments.
Can the TPS613785QWRTERQ1 synchronize to an external clock signal?
Yes, the TPS613785QWRTERQ1 can synchronize its switching frequency to an external clock applied to the MODE/SYNC pin. When configured in forced PWM mode (MODE/SYNC = high), the device locks to an external clock within 200 kHz–2.2 MHz range. This capability enables deterministic timing across multiple converters in complex automotive ECUs - reducing beat frequencies and improving overall system EMI profile.
TPS613785QWRTERQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 14V
- Voltage - Output (Min/Fixed):
- 4V
- Voltage - Output (Max):
- 18.5V
- Current - Output:
- -
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (3x3)
TPS613785QWRTERQ1 FAQ
1.How can I place an order for TPS613785QWRTERQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS613785QWRTERQ1 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 TPS613785QWRTERQ1 reliable?
The price and inventory of TPS613785QWRTERQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS613785QWRTERQ1 is usually 5 days.
3.What payment methods are accepted for TPS613785QWRTERQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS613785QWRTERQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS613785QWRTERQ1?
TPS613785QWRTERQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS613785QWRTERQ1 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 TPS613785QWRTERQ1?
For technical support, including TPS613785QWRTERQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS613785QWRTERQ1 requirements.
6.How does Aetrix verify that TPS613785QWRTERQ1 is sourced from the original manufacturer or authorized distributors?
All TPS613785QWRTERQ1 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 TPS613785QWRTERQ1 meets industry standards.
7.What is the process for return or replacement of TPS613785QWRTERQ1?
All TPS613785QWRTERQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS613785QWRTERQ1, 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 TPS613785QWRTERQ1 part is unused and in its original packaging.
Return procedure for TPS613785QWRTERQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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