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Texas Instruments TPS1HB35CQPWPRQ1
- Part No.:
- TPS1HB35CQPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS1HB35CQPWPRQ1.pdf
- Description:
- 40-V, 35-M, 1-CH AUTOMOTIVE SMAR
- Quantity:
- Payment:
- Shipping:
Inventory:2,046
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Product details
Overview
TPS1HB35CQPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive smart high-side switch with 35-mΩ RON (TJ = 25°C), resistor-programmable current limit (2.5 A to 6 A), and integrated analog current/temperature sense for predictive diagnostics in 12-V systems. It drives resistive, capacitive, and inductive loads including incandescent/LED lighting and HVAC actuators.
For engineers reviewing the TPS1HB35CQPWPRQ1 datasheet, TPS1HB35CQPWPRQ1 pinout, TPS1HB35CQPWPRQ1 application, or TPS1HB35CQPWPRQ1 equivalent, key selection criteria include its adjustable current-limit range, reverse-battery protection with automatic FET turn-on, thermal shutdown behavior (relative, not absolute), HTSSOP-16 package footprint, and SNS-based load diagnostics capability.
Technical Context
The TPS1HB35CQPWPRQ1 implements a robust N-channel MOSFET high-side driver with integrated charge pump, current-sense amplifier, and thermal management circuitry. Its current-limit threshold is set via external resistor on ILIM pin, and fault handling is configurable via LATCH pin to support latched or auto-retry behavior - specifically, Version C uses relative thermal shutdown (TREL = 60°C) rather than absolute junction shutdown.
It supports dual-mode analog sensing through SNS pin: when SEL1 = 0 V, it outputs proportional current for load current (KSNS = 2000); when SEL1 = 5 V, it outputs temperature-dependent current (dISNS,T/dT = 0.0112 mA/°C). Diagnostics are enabled only when DIA_EN is asserted high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON (TJ = 25°C) | 35 mΩ - enables low conduction loss and minimal self-heating at rated load currents up to 5 A continuous. |
| Current Limit Range | 2.5 A to 6 A - externally resistor-programmable for precise matching to load transient requirements and fault energy limits. |
| Thermal Shutdown Mode | Relative (TREL = 60°C) - triggers shutdown based on ΔT above ambient, allowing safe operation under sustained moderate loads without premature cutoff. |
| VBB Range | 6 V to 28 V - supports full automotive battery range including cold-crank (down to 3 V extended) and load-dump (40 V transient). |
| Current Sense Ratio | KSNS = 2000 - delivers accurate 0.5 mA to 4 mA analog output for 100 mA–2 A load current, enabling MCU-based real-time diagnostics. |
| Package | HTSSOP-16 (5.00 mm × 4.40 mm) - surface-mount, thermally enhanced package with exposed pad for PCB heat sinking. |
| AEC-Q100 Grade | Grade 1 (–40°C to +125°C) - qualified for under-hood and cabin control module environments with full reliability testing. |
Pinout & Package
HTSSOP-16 package with exposed thermal pad (VBB connected internally); 16-pin top-view layout with 0.65-mm pitch. Pin 1 is VBB, pin 2 is SNS, pin 3 is LATCH, pin 4 is EN, pin 5 is ILIM, pins 6–8 are VOUT (parallel-connected output terminals), pins 9–13 and 15 are NC, pin 14 is SEL1, pin 16 is DIA_EN, and GND is pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBB (Pin 1) | Power supply input | Main 12-V system rail connection; internal clamp protects against 40-V load dump transients. |
| SNS (Pin 2) | Analog sense output | Current-source output delivering IOUT/2000 (load current) or temperature-proportional current depending on SEL1 state. |
| LATCH (Pin 3) | Fault-handling control | Active-high input configuring latched (high) or auto-retry (low/floating) response after overcurrent or thermal fault. |
| EN (Pin 4) | Channel enable | Active-high logic input with 2.0 V VIH threshold; internal 1-MΩ pulldown ensures default OFF state. |
| ILIM (Pin 5) | Current limit set | Resistor-to-GND connection sets current-limit threshold between 2.5 A and 6 A per Version C specification. |
| VOUT (Pins 6–8) | Switched output | Three parallel pins reduce trace resistance and improve current sharing for high-current loads (e.g., motors, lamps). |
| SEL1 (Pin 14) | Sense mode select | Logic-selects SNS function: 0 V → current sense; 5 V → junction temperature sense (requires external resistor to GND if unused). |
| DIA_EN (Pin 16) | Diagnostic enable | Enables analog sense, open-load, and short-to-battery diagnostics; floating disables all diagnostic features. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection with auto-FET turn-on | Enables safe operation during –18 V reverse polarity events by automatically turning on internal FET to clamp voltage and prevent damage. |
| Configurable fault handling (latch/auto-retry) | LATCH pin allows system-level choice between safety-critical latched shutdown or self-recovering auto-retry behavior. |
| Integrated output clamp for inductive demagnetization | Internal clamp safely dissipates energy from 5-mH inductive loads during turn-off, eliminating need for external flyback diode. |
| High-accuracy analog current and temperature sensing | Single SNS pin provides ±5% current measurement (100 mA–2 A) and ±10°C temperature estimation (–40°C to +150°C) via multiplexed output. |
| Robust ESD and short-circuit immunity | HBM ±2 kV (all pins except VBB/VOUT), ±4 kV on power pins; withstands 40-V load dump and short-to-ground/battery faults. |
Applications
| Automotive Display Module | ADAS Module Power Control |
|---|---|
Use Scenario: Power switching for LCD backlight drivers and touch controller peripherals in instrument clusters and center displays. IC Role / Device Role / Timing Role: High-side power switch providing controlled 12-V delivery with open-load detection and current monitoring. Use Value: Enables real-time backlight health monitoring and prevents display blackouts due to wiring faults or LED string opens. | Use Scenario: Supplying power to radar sensor modules, camera power rails, and ADAS domain controllers requiring fault-tolerant operation. IC Role / Device Role / Timing Role: Smart power switch with programmable current limit and thermal derating to handle sensor startup surges and intermittent faults. Use Value: Eliminates need for discrete fuses and relays while supporting ASIL-B functional safety diagnostics via SNS reporting. |
| Seat Comfort Module | HVAC Blower Motor Control |
Use Scenario: Driving seat heater elements, lumbar actuators, and massage motors in premium vehicle seating systems. IC Role / Device Role / Timing Role: High-side driver with adjustable current limit (2.5–6 A) and reverse-polarity protection for occupant safety compliance. Use Value: Prevents thermal runaway in heater circuits and enables predictive maintenance via temperature-sense diagnostics. | Use Scenario: Controlling 12-V DC blower motors in climate control systems with variable speed and stall detection. IC Role / Device Role / Timing Role: Inductive load switch with integrated clamp, current sense, and thermal shutdown to manage motor inrush and locked-rotor conditions. Use Value: Reduces BOM count by replacing external clamping diodes and current-sense shunts while improving motor lifetime tracking. |
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 |
|---|---|---|---|
| TPS1HB35BQPWPRQ1 | Wider current limit range (4.4 A–22 A); same HTSSOP-16 package and pinout. | Better suited for higher-power loads like radiator fans or larger actuators requiring >6 A peak. | Select when design requires higher fault-energy tolerance and transient current headroom beyond 6 A. |
| TPS2HB35CQPWPRQ1 | Two-channel version with identical per-channel specs (35-mΩ RON, 2.5–6 A limit, same diagnostics). | Reduces board space and component count in multi-load systems such as door modules or mirror controls. | Choose for space-constrained designs needing dual independent high-side switches with shared diagnostics interface. |
Compared with TPS1HB35BQPWPRQ1 and TPS2HB35CQPWPRQ1, the TPS1HB35CQPWPRQ1 offers optimal balance of precision current limiting (2.5–6 A), compact single-channel form factor, and full diagnostic capability - making it ideal for mid-power automotive loads where accuracy and footprint are prioritized over maximum current or channel density.
Availability
TPS1HB35CQPWPRQ1 is available at Aetrix Electronics and suitable for automotive display modules, ADAS power distribution, seat comfort systems, and HVAC control units requiring stable component supply across production lifecycles.
Supply support for TPS1HB35CQPWPRQ1 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.
The TPS1HB35-Q1 product line delivers AEC-Q100-qualified smart high-side switches optimized for 12-V automotive body electronics, emphasizing diagnostic integrity, fault resilience, and seamless integration with microcontroller-based control architectures.
FAQ
What is the current limit range for TPS1HB35CQPWPRQ1?
The TPS1HB35CQPWPRQ1 has a resistor-programmable current limit range of 2.5 A to 6 A, as specified for Version C in the device comparison table. This range is set using an external resistor connected from ILIM (Pin 5) to GND, with values from 8.25 kΩ (6 A) to 25 kΩ (2.5 A). The TPS1HB35CQPWPRQ1 does not support internal fixed limits or wider ranges like Version B.
Does TPS1HB35CQPWPRQ1 support reverse-battery protection?
Yes, the TPS1HB35CQPWPRQ1 supports reverse-battery protection down to –18 V for up to 3 minutes. During reverse polarity, it automatically turns on the internal FET to clamp the output and prevent system damage. This behavior is confirmed in the Features section and Absolute Maximum Ratings table, and requires SEL1 to be grounded via RPROT if unused.
How does the SNS pin function on TPS1HB35CQPWPRQ1?
The SNS pin on TPS1HB35CQPWPRQ1 provides multiplexed analog output: when SEL1 = 0 V, it sources current proportional to load current (IOUT/2000) with ±5% accuracy; when SEL1 = 5 V, it sources temperature-dependent current (0.0112 mA/°C) for junction temperature estimation. Diagnostics require DIA_EN = high, and settling times are ≤70 µs per timing specifications.
What thermal shutdown behavior does TPS1HB35CQPWPRQ1 implement?
The TPS1HB35CQPWPRQ1 implements relative thermal shutdown (TREL = 60°C), not absolute junction shutdown. It triggers when die temperature exceeds ambient by 60°C, allowing sustained operation at elevated ambient temperatures without premature cutoff. Hysteresis is 20–30°C, and this behavior is specific to Version C - differing from Versions A/B (absolute shutdown) and F (fixed 34-A limit).
Is TPS1HB35CQPWPRQ1 pin-compatible with other TPS1HB35-Q1 variants?
Yes, all TPS1HB35-Q1 variants - including TPS1HB35CQPWPRQ1, TPS1HB35AQPWPRQ1, TPS1HB35BQPWPRQ1, and TPS1HB35FQPWPRQ1 - share identical HTSSOP-16 (PWP) packaging and pinout. However, functional differences exist: ILIM functionality applies only to Versions A/B/C; FLT replaces ILIM in Version F; and thermal shutdown behavior and current-limit ranges differ across versions.
TPS1HB35CQPWPRQ1 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:
- On/Off
- Voltage - Load:
- 6V ~ 18V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 6A
- Rds On (Typ):
- 35mOhm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled
- Fault Protection:
- Current Limiting (Adjustable), Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
TPS1HB35CQPWPRQ1 FAQ
1.How can I place an order for TPS1HB35CQPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS1HB35CQPWPRQ1 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 TPS1HB35CQPWPRQ1 reliable?
The price and inventory of TPS1HB35CQPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS1HB35CQPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS1HB35CQPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS1HB35CQPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS1HB35CQPWPRQ1?
TPS1HB35CQPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS1HB35CQPWPRQ1 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 TPS1HB35CQPWPRQ1?
For technical support, including TPS1HB35CQPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS1HB35CQPWPRQ1 requirements.
6.How does Aetrix verify that TPS1HB35CQPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS1HB35CQPWPRQ1 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 TPS1HB35CQPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS1HB35CQPWPRQ1?
All TPS1HB35CQPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS1HB35CQPWPRQ1, 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 TPS1HB35CQPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS1HB35CQPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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