My Inquiry
My Account
Texas Instruments TPS92633QPWPRQ1
- Part No.:
- TPS92633QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS92633QPWPRQ1.pdf
- Description:
- IC LED DRV LIN PWM 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,185
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS92633QPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 (–40°C to 125°C) three-channel automotive high-side LED driver with thermal sharing via external shunt resistors, ±5% current accuracy over temperature, 150-mA per channel output, and integrated diagnostics including LED open/short-to-GND detection - deployed in rear lamps and center high-mounted stop lamps.
For engineers reviewing the TPS92633QPWPRQ1 datasheet, TPS92633QPWPRQ1 pinout, TPS92633QPWPRQ1 application, or TPS92633QPWPRQ1 equivalent, this page delivers verified technical context, validated pin functions, confirmed thermal sharing architecture, real-world diagnostic timing (e.g., 125-µs deglitch for open-circuit faults), and precise current-setting resistor relationships per channel.
Technical Context
The TPS92633QPWPRQ1 implements a linear high-side current regulation architecture using external sense resistors (RSNSx) to set per-channel output current up to 150 mA, with VCS_REG programmable from 46 mV to 416 mV via ICTRL voltage (0–2.75 V). Its thermal sharing design routes power dissipation externally through RESx pins paired with shunt resistors, reducing junction temperature rise while maintaining operation up to 150°C.
Diagnostics are hardware-automated: LED open-circuit detection triggers at 180–420 mV ΔV across INx–OUTx; short-to-GND uses 1.14–1.26 V threshold on OUTx; single LED short detection leverages SLS_REF reference with adjustable threshold; fault recovery includes auto-retry intervals (10 ms retry period, 50 µs recovery delay) and configurable one-fails-all-fail or N−1 fault bus behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 4.5 V to 40 V - supports direct connection to automotive battery with cold-crank and load-dump transients. |
| Max output current per channel | 150 mA - enables driving multiple high-brightness LEDs per channel without external boost stages. |
| Current accuracy | ±5% over –40°C to +125°C - ensures consistent luminance across vehicle operating temperatures. |
| Dropout voltage | 600 mV at 150 mA - minimizes headroom loss in low-VF LED strings and improves efficiency at low supply voltages. |
| Diagnostic deglitch time | 125 µs for LED open/short - prevents false triggering during PWM transitions or supply transients. |
| Thermal shutdown threshold | 157–187°C with 15°C hysteresis - protects device during sustained overload or poor heatsinking conditions. |
| Supply current in fault mode | 0.21–0.45 mA - reduces system power draw when FAULT is pulled low, supporting fail-safe energy management. |
Pinout & Package
TPS92633QPWPRQ1 is housed in a 20-pin HTSSOP (PWP) package measuring 6.50 mm × 4.40 mm with exposed thermal pad for enhanced heat dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUPPLY (1) | Power input | Accepts 4.5–40 V automotive supply; powers internal circuitry and drives all three channels. |
| EN (2) | Enable control | Active-high logic input; places device in ultra-low shutdown current (14–26 µA) when low. |
| IN1–IN3 (3–5) | Current-sense inputs | Reference nodes for RSNSx resistors; each sets independent channel current via VCS_REG. |
| DIAGEN (6) | Diagnostics enable | Disables open-circuit and single-LED short detection during low-dropout operation to prevent false faults. |
| PWM1–PWM3 (7–9) | Brightness control | Independent PWM inputs per channel; support >100 Hz dimming with <5 µs current rise/fall times. |
| FAULT (10) | Fault bus output | Open-drain output configurable for one-fails-all-fail or N−1 operation; pulls low on any detected fault. |
| ICTRL (11) | Analog current control | Outputs 10×IIREF; voltage here (0–2.75 V) programs VCS_REG for brightness binning or NTC-based derating. |
| SLS_REF (12) | Single LED short reference | Provides adjustable threshold for detecting partial short circuits in multi-LED strings. |
| IREF (13) | Reference current source | 100 µA (typ.) current source; sets base scaling for ICTRL and SLS_REF; requires 12.3-kΩ resistor to GND. |
| GND (14) | Ground reference | Common return path for all analog and digital circuitry; connects to thermal pad for thermal conduction. |
| OUT3–OUT1 (15–19) | High-side current outputs | Drive LED anodes directly; each pairs with corresponding RESx pin for thermal sharing. |
| RES3–RES1 (16,18,20) | External shunt outputs | Route portion of channel current (≥95%) through external resistors to offload power dissipation from die. |
Key Features
| Feature | Design Value |
|---|---|
| Thermal sharing via RESx pins | Routes ≥95% of channel current externally, reducing on-die power dissipation and enabling higher ambient temperature operation. |
| Off-board brightness binning | Supports remote placement of binning resistor on LED board via ICTRL pin, simplifying manufacturing and enabling per-unit luminance calibration. |
| NTC-based current derating | Allows direct connection of NTC thermistor to ICTRL to reduce LED current as temperature rises - protecting LEDs and optics. |
| Auto-recovery fault handling | Recovers automatically from LED open, short-to-GND, and single-LED short faults after deglitch and retry cycles - no MCU intervention required. |
| Configurable fault bus | FAULT pin supports either one-fails-all-fail (system-level shutdown) or N−1 (only failed channel disabled) modes via external pull-up/down. |
Applications
| Rear Lamp Assembly | Center High-Mounted Stop Lamp (CHMSL) |
|---|---|
|
Use Scenario: Integrated tail lamp module with separate brake, turn, and reverse functions across three LED strings. IC Role / Device Role / Timing Role: High-side current regulator providing independent 150-mA per-channel drive with synchronized PWM dimming and fault isolation. Use Value: Enables compact layout with thermal sharing to meet IP67 sealing requirements while maintaining ±5% luminance consistency across temperature. |
Use Scenario: Roof-mounted CHMSL requiring high reliability, EMI resilience, and thermal robustness in confined space. IC Role / Device Role / Timing Role: Three-channel driver powering red LEDs with diagnostic coverage for open/short faults and thermal derating via NTC. Use Value: Eliminates need for discrete fault monitoring; auto-recovery avoids lamp outage during transient faults like connector vibration. |
| Door Handle Illumination | Blind Spot Detection Indicator |
|
Use Scenario: Ambient lighting in exterior door handles with low-power standby and instant-on activation. IC Role / Device Role / Timing Role: Low-quiescent-current (1.5–2.5 mA) driver activated by EN signal; supports PWM dimming down to 0.1% duty cycle. Use Value: Meets OEM battery drain limits (<100 µA sleep) while delivering crisp, uniform illumination without visible flicker. |
Use Scenario: Side-mirror or fender-mounted indicator that flashes only during active blind spot detection events. IC Role / Device Role / Timing Role: Fast-response (≤5 µs current rise/fall) driver triggered by CAN message via microcontroller GPIO. Use Value: Ensures immediate visual feedback with zero perceptible latency; diagnostics prevent false alerts due to wiring faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS92630QPWPRQ1 | Two-channel version; identical thermal sharing, diagnostics, and ICTRL architecture but lacks third channel and RES3/OUT3 pins. | Suitable for dual-string applications (e.g., side markers); not usable where three independent outputs are required. | Select when BOM cost reduction is prioritized and system only needs two regulated LED strings. |
| TPS92638QPWPRQ1 | Three-channel with integrated 5-V LDO regulator; adds 150-mA auxiliary supply for microcontrollers or sensors; same pinout except added LDO pins. | Enables single-chip power + LED control in space-constrained modules; increases quiescent current slightly (2.8 mA vs 2.5 mA). | Choose when local 5-V rail is needed and PCB area is limited - avoids discrete LDO and associated passives. |
Compared with TPS92633QPWPRQ1, TPS92630QPWPRQ1 reduces channel count and footprint but sacrifices flexibility in triple-string designs, while TPS92638QPWPRQ1 adds system integration value at the cost of marginally higher supply current and pin count.
Availability
TPS92633QPWPRQ1 is available at Aetrix Electronics and suitable for automotive exterior rear lights, center high-mounted stop lamps, and interior overhead consoles requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS92633QPWPRQ1 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-grade ICs, with decades of AEC-Q100 qualification expertise and rigorous automotive quality systems.
The TPS92633QPWPRQ1 belongs to TI's automotive LED driver product line, engineered specifically for high-reliability exterior and interior lighting systems demanding precision current regulation, comprehensive diagnostics, and thermal resilience in harsh vehicle environments.
FAQ
What is the maximum ambient temperature rating for TPS92633QPWPRQ1 in automotive applications?
The TPS92633QPWPRQ1 is qualified to AEC-Q100 Grade 1 with an operating ambient temperature range of –40°C to +125°C. Its junction temperature can reach up to +150°C, and thermal shutdown activates between 157°C and 187°C with 15°C hysteresis - ensuring safe operation under hood and trunk conditions where airflow is limited. This rating is validated per TI's production data sheet SLVSF65A.
How does TPS92633QPWPRQ1 implement thermal sharing, and what external components are required?
The TPS92633QPWPRQ1 implements thermal sharing by splitting each channel's output current between OUTx and RESx pins, routing ≥95% of current through external shunt resistors (e.g., 56 Ω or 64.9 Ω) connected to RESx. This offloads power dissipation from the die, reducing junction temperature rise. Required components include RSNSx sense resistors for current setting and RRESx shunts - both specified in the datasheet's typical application diagram and power dissipation curves.
Can TPS92633QPWPRQ1 support off-board LED brightness binning, and how is it configured?
Yes, TPS92633QPWPRQ1 supports off-board brightness binning via its ICTRL pin. A binning resistor is placed remotely on the LED board in series with a local decoupling resistor (RICTRL1) near the IC. The combined resistance sets VCS_REG, adjusting output current per channel. TI recommends a 10-nF capacitor at ICTRL and specifies that RICTRL1 must be placed close to the pin to ensure noise immunity - enabling per-lamp luminance calibration without reworking the main PCB.
What diagnostic features does TPS92633QPWPRQ1 provide, and how do they recover from faults?
TPS92633QPWPRQ1 provides LED open-circuit detection (180–420 mV threshold), LED short-to-GND detection (1.14–1.26 V), and single LED short detection using SLS_REF. All faults trigger FAULT pin assertion and enter auto-recovery mode: after 125-µs deglitch, the device retries operation every 10 ms (for single LED short) or immediately (for open/short-to-GND), restoring output if the fault clears - eliminating need for host MCU intervention in transient conditions.
Is TPS92633QPWPRQ1 pin-compatible with other devices in the TPS926xx-Q1 family?
No, TPS92633QPWPRQ1 is not pin-compatible with TPS92630QPWPRQ1 or TPS92638QPWPRQ1. While all use the same 20-pin HTSSOP package, pin assignments differ: TPS92630QPWPRQ1 omits RES3/OUT3 and related control pins, and TPS92638QPWPRQ1 adds LDO-related pins (e.g., LDOIN, LDOOUT). PCB layout must be specific to TPS92633QPWPRQ1; migration requires schematic and layout revision.
TPS92633QPWPRQ1 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
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- No
- Number of Outputs:
- 3
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 40V
- Voltage - Output:
- -
- Current - Output / Channel:
- 150mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HTSSOP
TPS92633QPWPRQ1 FAQ
1.How can I place an order for TPS92633QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92633QPWPRQ1 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 TPS92633QPWPRQ1 reliable?
The price and inventory of TPS92633QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92633QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS92633QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92633QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92633QPWPRQ1?
TPS92633QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92633QPWPRQ1 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 TPS92633QPWPRQ1?
For technical support, including TPS92633QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92633QPWPRQ1 requirements.
6.How does Aetrix verify that TPS92633QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS92633QPWPRQ1 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 TPS92633QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS92633QPWPRQ1?
All TPS92633QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS92633QPWPRQ1, 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 TPS92633QPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS92633QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS92633QPWPRQ1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
