TPS92630QPWPRQ1 - 3-Ch 150mA Linear LED Driver, AEC-Q100 | TI
MPN: TPS92630QPWPRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.85 | $185.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.41 | $1,410.00 |
TPS92630QPWPRQ1 Overview
What is a linear LED driver? A linear LED driver is a constant-current regulator that places the LED string in series with a pass transistor whose conduction is modulated to maintain a programmed current. Unlike switching drivers, linear regulators introduce no EMI and no switching ripple, which makes them ideal for noise-sensitive analog lighting and for meeting CISPR 25 EMI limits in automotive modules. The TPS92630-Q1 belongs to the broader power management IC family (LED driver -> constant-current driver -> lighting driver -> PMIC) and is optimized for medium-power automotive lighting subsystems.
Key features include a 150 mA per-channel current set by a single external sense resistor, 1000:1 analog dimming range, 1000:1 PWM dimming at 200 Hz, individual channel enable/diagnostic pins, and a fault output (FAULT) that asserts on any protection event. The HTSSOP-16 PowerPAD package achieves a theta_JA near 38 C/W on a 4-layer JEDEC JESD51 board, enabling compact PCB layouts without an external heatsink at typical 60-100 mA operating currents.
The TPS92630-Q1 uses three independent linear current sinks, each with its own diagnostic comparator and PWM latch. A shared reference and bias block minimize channel-to-channel mismatch. Internal slope compensation on the analog dimming input ensures monotonic response across the 1000:1 range and prevents current crowding in multi-string arrays.
Typical applications include automotive rear combination lamps, daytime running lights, interior ambient lighting, and ADAS indicator LEDs. The wide 4.5 V to 40 V transient tolerance also makes it robust against load-dump events on 12 V automotive buses.
When designing with this part, place the 1 uF VIN bypass capacitor close to the IC and route the PowerPAD copper pour to a low-impedance ground plane. Verify thermal performance under worst-case VIN and full-current operation, and use the FAULT pin for system-level diagnostics in compliance with ISO 26262 functional-safety requirements.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for TPS92630QPWPRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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TPS92630QPWPRQ1
✅ Drop-In✓ In Stock
$1.41 / Unit
View Datasheet →TPS92630QPWPQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS92630QWPRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS92630PWPR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS92631QPWPRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS92630QPWPRQ1 Maximum Ratings & Electrical Characteristics
| Topology | Linear LED Driver (current sink) |
| Number of Channels | 3 |
| Per-Channel Output Current | 150 mA max |
| Supply Voltage (Nominal) | 9 V to 18 V |
| Supply Voltage (Transient) | Up to 40 V (load dump tolerant) |
| Dimming Method | Analog + PWM |
| Analog Dimming Range | 1000:1 |
| PWM Dimming Range | 1000:1 at 200 Hz |
| Diagnostics | Open LED, short-to-GND, short-to-VBAT, thermal shutdown, FAULT pin |
| Package | HTSSOP-16 (PWP) with PowerPAD |
| Thermal Resistance (theta_JA) | 38 C/W (4-layer JEDEC board) |
| Operating Temperature | -40 C to +125 C |
| Automotive Qualification | AEC-Q100 Grade 1 |
| Mounting Type | Surface Mount |
| MSL Level | 2 (1 year floor life) |
| RoHS Status | Compliant |
| Input Capacitor (recommended) | 1 uF X7R ceramic |
| Current Set Resistor | External RSNS per channel |
TPS92630QPWPRQ1 Pin Configuration
| Pin 1 | IOUT1 — Current sink output channel 1 (LED cathode) |
| Pin 2 | IOUT2 — Current sink output channel 2 (LED cathode) |
| Pin 3 | IOUT3 — Current sink output channel 3 (LED cathode) |
| Pin 4 | RSNS1 — Channel 1 current sense resistor |
| Pin 5 | RSNS2 — Channel 2 current sense resistor |
| Pin 6 | RSNS3 — Channel 3 current sense resistor |
| Pin 7 | AGND — Analog ground |
| Pin 8 | EN — Enable input (active high) |
| Pin 9 | PWM — PWM dimming input |
| Pin 10 | ADIM — Analog dimming input |
| Pin 11 | FAULT — Open-drain fault output |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | VIN — Supply voltage input |
| Pin 14 | NC — Not connected (per datasheet) |
| Pin 15 | NC — Not connected (per datasheet) |
| Pin 16 | PGND — Power ground (connect to PowerPAD) |
Typical Applications
TPS92630QPWPRQ1 is suitable for 6 applications: Automotive Rear Combination Lamps, Daytime Running Lights (DRL), Interior Ambient Lighting, ADAS Indicator LEDs, Architectural and Signage Lighting, Industrial Status Indicators.
Automotive Rear Combination Lamps
The TPS92630QPWPRQ1's three independent 150 mA current sinks drive the three logical functions of a rear lamp - tail, stop, and turn - from a single 12 V battery rail, eliminating the need for three discrete linear regulators. With 1000:1 PWM dimming, the tail lamp can dim smoothly for parking-light mode at <1% duty, while the stop and turn signals drive at full 150 mA during their activation. The 40 V transient tolerance handles ISO 7637-2 load-dump events without external TVS clamps. AEC-Q100 Grade 1 qualification plus on-die open-LED, short-to-GND, and short-to-VBAT diagnostics satisfy the functional-safety requirements of modern body-electronics modules.
Recommended
Daytime Running Lights (DRL)
For DRL applications, the TPS92630QPWPRQ1 drives three parallel LED strings in a single compact HTSSOP-16 footprint, reducing PCB area versus three discrete drivers. The 1000:1 analog dimming input allows a single resistor or DAC to set brightness, which is useful for matching DRL output to regulatory photometric requirements across different vehicle variants. Because the IC is a linear current sink rather than a switching converter, no EMI filter is required, helping the design pass CISPR 25 Class 5 without expensive shielding. With 150 mA per channel it supports up to three 50 mA LED strings or a single 450 mA string configured in parallel.
Recommended
Interior Ambient Lighting
Interior ambient lighting demands low EMI, smooth dimming, and small PCB area - exactly the design center of the TPS92630QPWPRQ1. The three channels independently control door-panel, footwell, and dashboard lighting strips, while the PWM input accepts a microcontroller-generated 200 Hz signal for smooth 1000:1 brightness transitions that the human eye perceives as continuous. The integrated FAULT pin can be routed back to a body-control MCU to detect failed LEDs and disable affected channels, preserving the rest of the ambient lighting system. The HTSSOP-16 PowerPAD footprint allows it to fit beneath plastic light guides without raising the z-height of the lighting module.
Recommended
ADAS Indicator LEDs
Advanced driver-assistance systems use indicator lamps on the instrument cluster and heads-up display to communicate safety events. The TPS92630QPWPRQ1's AEC-Q100 Grade 1 qualification, full diagnostic coverage, and 150 mA per-channel output match ADAS reliability targets. Three channels drive blind-spot-warning, lane-departure, and forward-collision indicators with matched brightness through a shared internal reference. The FAULT output integrates with the vehicle's safety controller to meet ISO 26262 ASIL-B system requirements by signaling which indicator has failed before the driver notices a missing LED.
Recommended
Architectural and Signage Lighting
Architectural LED installations benefit from the TPS92630QPWPRQ1's three-channel high-side PWM dimming and 150 mA drive capability when running off 12 V or 24 V supplies. The 1000:1 PWM dimming allows a wide range of accent-lighting effects from full brightness to deep dimming without color shift, which is critical for RGB-style white-tunable fixtures. The 40 V transient tolerance handles long cable runs where inductive kick may otherwise damage the driver IC. Three independent channels enable simple per-zone dimming with a single MCU controlling the PWM input.
Recommended
Industrial Status Indicators
Industrial control panels often use three-color stack-light indicators for machine status. The TPS92630QPWPRQ1 drives red, amber, and green LED stacks from a single 24 V industrial supply through three independent current sinks. The wide 9 V to 18 V nominal range plus 40 V transient tolerance tolerates the noisy 24 V backplane common in factory automation. Built-in open-LED and short-circuit diagnostics enable predictive maintenance by reporting which indicator has failed before a maintenance technician inspects the panel, reducing downtime in continuous-process industries.
Recommended
Recommended Products Summary
Engineering reference data for TPS92630QPWPRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS92630QPWPQ1 | TPS92630QWPRQ1 | TPS92630PWPR | TPS92631QPWPRQ1 |
|---|---|---|---|---|---|
| Package | HTSSOP-16 (PWP) with PowerPAD | HTSSOP-16 (PWP) - same | HTSSOP-16 (PWP) - same | HTSSOP-16 (PWP) - same | HTSSOP-16 (PWP) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 3 | 3 | 3 | 3 | 3 |
| Per-Channel Output Current | 150 mA | 150 mA | 150 mA | 150 mA | Higher (per family) |
| Supply Voltage Range | 9 V to 18 V (40 V transient) | 9 V to 18 V (40 V transient) | 9 V to 18 V (40 V transient) | 9 V to 18 V (40 V transient) | 9 V to 18 V (40 V transient) |
| Automotive Grade (AEC-Q100) | Grade 1 | Grade 1 | Grade 1 | Not qualified | Grade 1 |
| Dimming Range (PWM) | 1000:1 | 1000:1 | 1000:1 | 1000:1 | 1000:1 |
| FAULT Output | Yes (open-drain) | Yes (open-drain) | Yes (open-drain) | Yes (open-drain) | Yes (open-drain) |
Key Differentiators
- AEC-Q100 Grade 1 qualified for automotive use (vs TPS92630PWPR)
- Three fully integrated 150 mA current sinks (vs TPS92518HVQPWPRQ1)
- Combined analog + PWM dimming with 1000:1 range (vs TPS92691PWPR)
Design Notes
Estimated: at VIN=14 V, VLED=8 V (3 LEDs in series), and IOUT=150 mA per channel with all 3 channels active, total package dissipation is approximately (14-8) V * 0.45 A = 2.7 W. With theta_JA of 38 C/W, junction temperature rises ~103 C above ambient, which is acceptable for -40 C to +125 C operation at 25 C ambient but requires a PowerPAD copper pour of at least 1 square inch. Reduce per-channel current or count of active channels if ambient exceeds 60 C.
Place the 1 uF X7R ceramic VIN bypass capacitor within 2 mm of the VIN and PGND pins to suppress high-frequency noise. Route the PowerPAD to a continuous ground plane on the top layer with at least 4 thermal vias (0.3 mm drill, 0.5 mm pitch) to the inner ground plane. Keep the high-current IOUT traces short and wide to minimize voltage drop on the LED cathode return.
Do not float the EN pin - tie to VIN through a 100 kohm pull-up to prevent undefined startup states. Do not exceed 40 V on VIN even momentarily, as this is the absolute maximum and will trigger latch-up. Always check that the LED forward voltage plus headroom stays below VIN across all operating temperatures, otherwise the linear current sink will saturate and brightness will drop. Use the FAULT pin pull-up resistor (10-100 kohm) to a logic rail, not VIN, to avoid back-powering through the open-drain FET during fault conditions.
Keep analog ground (AGND) and power ground (PGND) connected at a single point near the IC, with the PowerPAD acting as the star ground. Route the PWM and ADIM signals away from the IOUT traces to prevent capacitive coupling that would distort dimming transitions. For multi-string parallel LED configurations, use independent RSNS resistors for each channel to compensate for LED forward-voltage mismatch.
Compliance Information
AEC-Q100 Grade 1 qualified per TI datasheet. RoHS and REACH compliant. Halogen-free per JEDEC JS709. Conflict-mineral compliant per TI CMRT.
