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Texas Instruments TPS7B7702QPWPRQ1
- Part No.:
- TPS7B7702QPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS7B7702QPWPRQ1.pdf
- Description:
- IC REG LIN POS ADJ 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,177
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Product details
Overview
TPS7B7702QPWPRQ1 from Texas Instruments is a dual-channel automotive-grade LDO regulator with integrated high-side current sense, adjustable current limit (50–300 mA per channel), 4.5 V to 40 V input range, and 1.5 V to 20 V adjustable output voltage per channel - designed for active antenna power delivery over coax cable in infotainment systems.
For engineers reviewing the TPS7B7702QPWPRQ1 datasheet, TPS7B7702QPWPRQ1 pinout, TPS7B7702QPWPRQ1 application, or TPS7B7702QPWPRQ1 equivalent, this device supports fault-discriminating diagnostics via analog SENSE1/SENSE2 outputs and digital ERR signaling, enables multiplexed ADC monitoring of two channels, and delivers 73 dB PSRR at 100 Hz for low-noise RF amplifier biasing.
Technical Context
The TPS7B7702QPWPRQ1 implements two independent high-voltage LDO channels with separate EN1/EN2, FB1/FB2, LIM1/LIM2, SENSE1/SENSE2, and OUT1/OUT2 terminals. Each channel features programmable current limit via external resistor on LIMx and linear current-sense ratio of 198:1 (IO/ISENSE) with ±3% accuracy at 100–300 mA load.
It integrates reverse-polarity protection down to –40 V, short-to-battery detection with 16-ms blanking, thermal shutdown at 175°C, and open-drain ERR fault reporting. The SENSE_SEL and SENSE_EN pins enable time-division multiplexing of SENSE1 and SENSE2 onto a single ADC input with ≤10 µs switching delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 40 V - supports 12 V/24 V automotive battery rails and withstands 45 V load dump transients. |
| Output Current per Channel | Up to 300 mA - sufficient to power low-noise amplifiers in active GPS/GNSS and AM/FM antennas. |
| Current Sense Ratio | 198:1 (IO/ISENSE) - enables accurate open-load detection at <5 mA without calibration. |
| Dropout Voltage | 500 mV max at 100 mA - ensures regulation under cold-crank conditions with minimal headroom loss. |
| PSRR | 73 dB typical at 100 Hz - suppresses alternator ripple and EMI noise before RF front-end stages. |
| Operating Temperature | –40°C to +125°C ambient - AEC-Q100 Grade 1 qualified for under-hood and dashboard mounting. |
| Package | 16-pin HTSSOP with PowerPAD™ - provides low thermal resistance (RθJA = 40.3°C/W) for sustained 300 mA operation. |
Pinout & Package
TPS7B7702QPWPRQ1 is housed in a 16-pin HTSSOP (PWP) package with exposed PowerPAD™ thermal pad soldered to PCB ground plane for enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power Input | Main high-voltage supply input (4.5–40 V); connects to battery or fused distribution rail. |
| OUT1 / OUT2 | Regulated Output | Independent LDO outputs; each delivers up to 300 mA at 1.5–20 V set by FB1/FB2 divider. |
| EN1 / EN2 | Enable Control | Active-high logic inputs with internal pulldown; control startup sequencing and channel disable. |
| FB1 / FB2 | Voltage Feedback | Resistor-divider nodes setting output voltage; tie to GND to configure channel as current-limited switch. |
| LIM1 / LIM2 | Current Limit Set | Outputs reference voltage (1.233 V) - connect external resistor to GND to program 50–300 mA limit. |
| SENSE1 / SENSE2 | Analog Current Sense | High-side proportional current monitor outputs (IO/ISENSE = 198); require 1 µF capacitor to GND for stability. |
| SENSE_SEL | Multiplex Control | Selects between SENSE1 and SENSE2 for shared ADC input; low = SENSE1, high = SENSE2. |
| SENSE_EN | Sense Enable | Active-low enable for current-sense circuitry; disables SENSEx outputs when high to reduce quiescent current. |
| ERR | Fault Indicator | Open-drain output asserted low during thermal shutdown, short-to-battery, reverse current, or current-limit fault. |
| VCC | Internal Regulator | 4.5 V internal supply for logic and sense circuitry; requires 1 µF ceramic capacitor to GND. |
| GND | Ground Reference | Primary ground return; PowerPAD™ must be soldered to large copper pour for thermal and electrical performance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel current-sense LDO | Two independent 300-mA regulators with dedicated SENSE1/SENSE2 outputs and fault discrimination. |
| Adjustable current limit | Programmable 50–300 mA per channel using external resistor on LIM1/LIM2 - no calibration needed. |
| Integrated reverse-polarity protection | Withstands –40 V input without external diode - eliminates BOM cost and board space for discrete protection. |
| Multiplexed current sensing | SENSE_SEL and SENSE_EN allow time-division sharing of one ADC input across both channels. |
| Comprehensive fault coverage | Distinguishes open-load, short-to-battery, reverse-current, thermal shutdown, and current-limit events via SENSEx voltage levels. |
Applications
| Infotainment Active Antenna | Surround-View Camera Power |
|---|---|
Use Scenario: Powers GNSS, AM/FM, and cellular diversity antennas via coaxial cable in automotive head units. IC Role / Device Role / Timing Role: Dual-channel LDO supplies regulated bias to low-noise amplifiers while monitoring antenna integrity via current sense. Use Value: Detects open-cable faults at <5 mA and distinguishes short-to-battery from thermal overload - enabling fail-safe system response without MCU firmware calibration. |
Use Scenario: Supplies stable 5 V or 8.5 V to image sensors and serializer ICs in multi-camera surround-view systems. IC Role / Device Role / Timing Role: High-PSRR dual LDO rejects engine noise and alternator ripple to prevent video artifacts in camera feeds. Use Value: 73 dB PSRR at 100 Hz and 500 mV dropout ensure clean power during cold-crank (6.5 V battery), preserving image quality and frame sync. |
| High-Side Power Switch | Automotive Telematics Module |
Use Scenario: Replaces discrete high-side switches in low-current actuators like LED status indicators or sensor bias rails. IC Role / Device Role / Timing Role: Configured in switch mode (FBx tied to GND) with programmable current limit and reverse-polarity protection. Use Value: Eliminates need for external MOSFET, gate driver, and reverse-protection diode - reducing component count and layout complexity. |
Use Scenario: Powers LTE/V2X modems and GNSS receivers in telematics control units (TCUs) with diagnostic readiness. IC Role / Device Role / Timing Role: Dual LDO delivers independent, monitored power to modem baseband and RF sections with fault isolation. Use Value: ERR pin and multiplexed SENSE outputs enable single-MCU GPIO/ADC to supervise two critical subsystems - simplifying functional safety diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7B7701QPWPRQ1 | Single-channel version in identical HTSSOP-16 package; shares same current-sense architecture, protection features, and 4.5–40 V input range. | Used where only one regulated antenna rail is required; lacks second channel, SENSE2, EN2, FB2, OUT2, LIM2, and SENSE_SEL functionality. | Select when system design requires only one LDO channel - reduces cost and simplifies routing without sacrificing diagnostics capability. |
| LM74700QDBVRQ1 | Single-channel ideal diode controller (no LDO regulation); supports reverse-voltage protection and load-dump clamping but no current sense or adjustable output voltage. | Applicable only for passive reverse-polarity and surge protection - cannot replace TPS7B7702QPWPRQ1's regulated bias and fault-monitoring functions. | Choose only for non-regulated power path protection; not a functional substitute for active antenna power delivery or diagnostics. |
Compared with TPS7B7701QPWPRQ1, the TPS7B7702QPWPRQ1 adds full channel duplication for redundant or dual-rail systems; compared with LM74700QDBVRQ1, it provides regulation, current sensing, and fault classification - making it uniquely suited for active antenna and camera power with ISO 26262-relevant diagnostics.
Availability
TPS7B7702QPWPRQ1 is available at Aetrix Electronics and suitable for infotainment antenna power, surround-view camera bias, and telematics module supply requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for TPS7B7702QPWPRQ1 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 electronics with decades of automotive qualification expertise.
The TPS7B770x-Q1 product line was engineered specifically for active antenna and camera power delivery in automotive infotainment and ADAS systems - integrating regulation, protection, and diagnostics into a single AEC-Q100-compliant package.
FAQ
What is the maximum output current per channel for the TPS7B7702QPWPRQ1?
The TPS7B7702QPWPRQ1 supports up to 300 mA per channel continuously under recommended operating conditions (TA = –40°C to +125°C, VI = 4.5 V to 40 V). This rating assumes proper PCB thermal design with the PowerPAD™ soldered to an adequate copper area. At 100 mA load, dropout remains ≤500 mV, ensuring reliable operation during low-input transients.
How does the TPS7B7702QPWPRQ1 detect open-load conditions in antenna circuits?
The TPS7B7702QPWPRQ1 detects open-load conditions using its high-accuracy current-sense circuitry: at loads below 5 mA, the SENSE1 or SENSE2 output voltage drops below 2.4 V - a level distinct from short-to-battery (3.05–3.3 V), thermal shutdown (2.7–3.0 V), and current-limit (2.4–2.65 V) fault voltages. This enables unambiguous open-cable detection without MCU calibration or external components.
Can the TPS7B7702QPWPRQ1 operate as a high-side switch instead of an LDO?
Yes - the TPS7B7702QPWPRQ1 can be configured as a current-limited high-side switch by connecting FB1 and FB2 directly to GND. In this mode, each channel regulates current rather than voltage, maintaining constant current up to the limit set by the LIM1/LIM2 resistor. The device retains all protection features including reverse-polarity, short-to-battery, and thermal shutdown.
What is the purpose of the SENSE_SEL and SENSE_EN pins on the TPS7B7702QPWPRQ1?
SENSE_SEL selects which current-sense channel (SENSE1 or SENSE2) is active on the shared analog output node, while SENSE_EN globally enables or disables the current-sense circuitry. Together, they allow time-division multiplexing of both channels onto a single MCU ADC input with ≤10 µs switching delay - conserving precious analog resources in space-constrained automotive ECUs.
Does the TPS7B7702QPWPRQ1 include reverse-polarity protection, and what is its rating?
Yes - the TPS7B7702QPWPRQ1 integrates reverse-polarity protection capable of withstanding –40 V applied to the IN pin without damage or external components. This eliminates the need for an external series diode, reducing power loss, board area, and BOM cost while maintaining full functionality during reverse-battery connection events.
TPS7B7702QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- 20V
- Voltage Dropout (Max):
- 0.5V @ 100mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 1 mA
- Current - Supply (Max):
- -
- PSRR:
- 73dB (100Hz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
TPS7B7702QPWPRQ1 FAQ
1.How can I place an order for TPS7B7702QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7B7702QPWPRQ1 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 TPS7B7702QPWPRQ1 reliable?
The price and inventory of TPS7B7702QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7B7702QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS7B7702QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7B7702QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7B7702QPWPRQ1?
TPS7B7702QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7B7702QPWPRQ1 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 TPS7B7702QPWPRQ1?
For technical support, including TPS7B7702QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7B7702QPWPRQ1 requirements.
6.How does Aetrix verify that TPS7B7702QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS7B7702QPWPRQ1 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 TPS7B7702QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS7B7702QPWPRQ1?
All TPS7B7702QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS7B7702QPWPRQ1, 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 TPS7B7702QPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS7B7702QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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