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Texas Instruments TPS1HB08BQPWPRQ1
- Part No.:
- TPS1HB08BQPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS1HB08BQPWPRQ1.pdf
- Description:
- 8MOHM OTP B
- Quantity:
- Payment:
- Shipping:
Inventory:1,588
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Product details
Overview
TPS1HB08BQPWPRQ1 from Texas Instruments is a single-channel automotive-grade smart high-side switch designed for 12-V battery systems, featuring 8-mΩ RON (TJ = 25°C), resistor-programmable current limiting (14 A to 70 A), integrated analog current/temperature sense (KSNS = 5000), and robust protection against short-to-ground, short-to-battery, reverse battery, and load dump (40 V). It drives incandescent/LED lighting, relays, and motors in body control modules.
For engineers reviewing the TPS1HB08BQPWPRQ1 datasheet, TPS1HB08BQPWPRQ1 pinout, TPS1HB08BQPWPRQ1 application, or TPS1HB08BQPWPRQ1 equivalent, key selection considerations include programmable overcurrent threshold, diagnostic enable (DIA_EN) control of SNS multiplexing, latch/auto-retry fault handling via LATCH pin, and HTSSOP-16 thermal performance (RθJA = 32.6°C/W).
Technical Context
The TPS1HB08BQPWPRQ1 implements a protected N-channel MOSFET high-side driver with internal charge pump and current-sense amplifier. Its current-limit threshold is set by an external resistor on ILIM, enabling precise adaptation to transient load profiles - e.g., 14 A minimum for low-power sensors, up to 70 A for HVAC actuators.
Diagnostic functionality is managed through DIA_EN–controlled SNS pin multiplexing between load current (SEL1 = 0 V) and junction temperature (SEL1 = 5 V), with ±5.3% current sense accuracy at 10 A and 0.0112 mA/°C temperature coefficient. Fault reporting occurs via SNS or (in Version F only) FLT pin - TPS1HB08BQPWPRQ1 uses SNS-based indication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON | 8 mΩ at TJ = 25°C; enables <1.1 W conduction loss at 11 A continuous load, critical for thermally constrained automotive PCBs |
| Current Limit Range | 14 A to 70 A (resistor-programmable); supports wide load spectrum from seat comfort heaters to headlight drivers without redesign |
| Load Dump Withstand | 40 V per ISO 16750-2; eliminates need for external TVS in 12-V automotive power domains |
| Sense Accuracy | ±5.3% at IOUT = 10 A; provides reliable closed-loop current monitoring for predictive load diagnostics |
| Thermal Shutdown | 150°C with 25°C hysteresis; prevents permanent damage during sustained overload or poor heatsinking |
| Quiescent Current | 0.5 µA at TJ = 85°C; meets automotive standby power budgets for always-on modules |
| VBB Range | 3 V to 28 V; operates across cold-crank (3 V) and load-dump (28 V) transients without reset or dropout |
Pinout & Package
TPS1HB08BQPWPRQ1 is housed in a thermally enhanced 16-pin HTSSOP package (5.0 mm × 4.40 mm), with exposed VBB pad for low-impedance power delivery and improved thermal dissipation (RθJB = 9.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Reference ground | Primary return path for all internal circuits; must be low-inductance connection to system GND plane |
| SNS (Pin 2) | Analog sense output | Multiplexed current/temperature signal; requires 1-kΩ pull-down if unused to disable diagnostics |
| LATCH (Pin 3) | Fault behavior control | High = latched shutdown; low/float = auto-retry; enables fail-safe or self-recovering system strategies |
| EN (Pin 4) | Channel enable input | Active-high logic interface; VIH = 2.0 V, VIL = 0.8 V; compatible with 3.3-V and 5-V microcontrollers |
| ILIM (Pin 5) | Current limit programming | Resistor-to-GND sets threshold; open circuit defaults to 104 A (fault state); critical for safe commissioning |
| VOUT (Pins 6–11) | Power output channel | Parallel pins reduce trace resistance and inductance; rated for 11 A continuous at TAMB = 70°C |
| NC (Pins 12, 13, 15) | No-connect | Must remain floating; no internal connection; avoids unintended parasitic coupling |
| SEL1 (Pin 14) | Diagnostics mode select | 0 V = current sense; 5 V = temperature sense; grounded via RPROT if unused to enable reverse-battery FET turn-on |
| DIA_EN (Pin 16) | Diagnostics enable | Active-high; disables SNS, open-load, and short-to-battery detection when low; reduces system quiescent power |
| VBB (Exposed Pad) | Main power supply input | Connects directly to 12-V battery rail; large copper area required for thermal and current handling |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation; ensures reliability in engine bay and cabin modules |
| Integrated reverse-battery protection | Automatically turns on internal FET during –18 V reverse events; prevents system damage without external diodes |
| Configurable fault handling | LATCH pin selects latched shutdown (fail-safe) or auto-retry (self-healing) after overcurrent or thermal fault |
| Inductive load demagnetization clamp | Internal clamp limits VDS to 46 V during turn-off; eliminates need for external flyback diode in relay/motor drives |
| High-accuracy analog sense | 0.0112 mA/°C temp coefficient and ±5.3% current sense error enable MCU-based predictive maintenance algorithms |
Applications
| Automotive Body Control Module | ADAS Camera Power Management |
|---|---|
|
Use Scenario: Centralized switching of door locks, window lifts, and interior lighting in modern BCMs. IC Role / Device Role / Timing Role: High-side power switch with current monitoring and fault reporting to MCU via SNS pin. Use Value: Enables real-time load health monitoring and automatic shutdown during wiring faults, improving vehicle serviceability. |
Use Scenario: Controlled power sequencing and protection for front/rear ADAS cameras operating in harsh thermal environments. IC Role / Device Role / Timing Role: Smart power switch with thermal sensing and programmable current limit to prevent camera sensor damage during hot-plug events. Use Value: Eliminates external current-sense amplifiers and thermal sensors, reducing BOM count and PCB area by >30%. |
| 65-W Automotive Headlight Driver | HVAC Blower Motor Control |
|
Use Scenario: Driving high-intensity LED headlight arrays requiring precise current regulation and surge tolerance. IC Role / Device Role / Timing Role: High-current (up to 70 A peak) high-side switch with fast turn-on (tON = 94 µs typ) and load-dump immunity. Use Value: Withstands 40-V load dumps without external clamping, ensuring headlight uptime during alternator regulation faults. |
Use Scenario: PWM-controlled blower motor in HVAC systems with variable airflow demands and stall risk. IC Role / Device Role / Timing Role: Protected high-side driver with adjustable current limit (14–70 A) and integrated demagnetization clamp. Use Value: Prevents motor winding burnout during stall conditions while enabling soft-start via EN slew-rate control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart high-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS1HB08AQPWPRQ1 | Lower current limit range (6.4 A–32 A); same pinout and package | Better suited for low-power loads like sensors and small solenoids; insufficient for headlight or HVAC motors | Select when peak load current ≤32 A and tighter current-limit resolution is needed |
| TPS1HB08FQPWPRQ1 | Fixed 94-A current limit; adds dedicated open-drain FLT pin for fault signaling | Optimized for high-reliability, high-current applications where fixed protection threshold is acceptable | Choose when simplified design (no ILIM resistor) and discrete fault flag are prioritized over programmability |
Compared with TPS1HB08AQPWPRQ1 and TPS1HB08FQPWPRQ1, the TPS1HB08BQPWPRQ1 uniquely balances mid-to-high current capability (14–70 A) with diagnostic flexibility (SNS multiplexing), making it optimal for mixed-load automotive modules requiring both precision and headroom.
Availability
TPS1HB08BQPWPRQ1 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS camera power systems, and HVAC blower motor drivers requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS1HB08BQPWPRQ1 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 functional safety documentation support.
The TPS1HB08-Q1 product line delivers smart high-side switches for 12-V automotive power distribution, engineered to replace mechanical relays and discrete MOSFET solutions with integrated protection, diagnostics, and AEC-Q100 reliability.
FAQ
What is the maximum continuous load current supported by the TPS1HB08BQPWPRQ1?
The TPS1HB08BQPWPRQ1 supports 11 A continuous load current at TAMB = 70°C, as specified in its electrical characteristics table. This rating assumes proper PCB thermal design (e.g., 2 oz copper, thermal vias under exposed VBB pad) and accounts for RON increase with junction temperature. Peak currents up to 70 A are permitted briefly under programmable current-limit protection.
How does the TPS1HB08BQPWPRQ1 handle reverse battery conditions?
The TPS1HB08BQPWPRQ1 withstands –18 V reverse battery for up to 3 minutes and automatically turns on its internal FET to conduct current safely, preventing damage to downstream loads. This behavior is enabled when SEL1 is grounded via RPROT, and no external components are required - a key differentiator from basic high-side switches.
Can the TPS1HB08BQPWPRQ1 monitor both load current and device temperature?
Yes - the TPS1HB08BQPWPRQ1 uses the SNS pin for multiplexed analog sensing: with SEL1 = 0 V, SNS outputs current-proportional current (KSNS = 5000); with SEL1 = 5 V, it outputs temperature-proportional current (0.0112 mA/°C). DIA_EN must be high to activate either mode, and settling times are under 70 µs.
What fault conditions does the TPS1HB08BQPWPRQ1 detect and report?
The TPS1HB08BQPWPRQ1 detects overcurrent (via ILIM programming), thermal shutdown (>150°C), open load (VOUT > 3 V with EN high), and short-to-battery (VOUT ≈ VBB with EN low). All faults are reported through the SNS pin voltage/current shift; unlike Version F, TPS1HB08BQPWPRQ1 does not include a dedicated FLT pin.
Is the TPS1HB08BQPWPRQ1 pin-compatible with other devices in the TPS1HB08-Q1 family?
Yes - all TPS1HB08-Q1 variants (A, B, F) share identical HTSSOP-16 packaging, pinout, and footprint. The TPS1HB08BQPWPRQ1 can be substituted for A or F versions without PCB changes, though firmware and external components (e.g., ILIM resistor, FLT pull-up) must be validated for functional equivalence.
TPS1HB08BQPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- -
- Voltage - Load:
- -
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 28V
- Current - Output (Max):
- 70A
- Rds On (Typ):
- 8mOhm
- Input Type:
- -
- Features:
- -
- Fault Protection:
- Current Limiting (Adjustable), Over Current, Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
TPS1HB08BQPWPRQ1 FAQ
1.How can I place an order for TPS1HB08BQPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS1HB08BQPWPRQ1 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 TPS1HB08BQPWPRQ1 reliable?
The price and inventory of TPS1HB08BQPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS1HB08BQPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS1HB08BQPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS1HB08BQPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS1HB08BQPWPRQ1?
TPS1HB08BQPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS1HB08BQPWPRQ1 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 TPS1HB08BQPWPRQ1?
For technical support, including TPS1HB08BQPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS1HB08BQPWPRQ1 requirements.
6.How does Aetrix verify that TPS1HB08BQPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS1HB08BQPWPRQ1 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 TPS1HB08BQPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS1HB08BQPWPRQ1?
All TPS1HB08BQPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS1HB08BQPWPRQ1, 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 TPS1HB08BQPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS1HB08BQPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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