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Texas Instruments TPS92201AMDRVR
- Part No.:
- TPS92201AMDRVR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS92201AMDRVR.pdf
- Description:
- 1 OR 1.5-A HIGH-EFFICIENCY SYNCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,745
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Product details
Overview
TPS92201AMDRVR from Texas Instruments is a 1.5A synchronous buck LED driver IC designed for constant-current LED biasing in compact, battery-sensitive systems. It operates from 2.5V to 5.5V input, delivers up to 1.5A output current with 100mV feedback reference, supports 20kHz–200kHz PWM dimming, and features Power Save Mode for high efficiency at light load - used in smart home cameras and IP camera flash circuits.
For engineers reviewing the TPS92201AMDRVR datasheet, TPS92201AMDRVR pinout, TPS92201AMDRVR application, or TPS92201AMDRVR equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and electrical specs, real-world dimming behavior, and direct alternative options for IR LED driver selection.
Technical Context
The TPS92201AMDRVR implements adaptive off-time peak current control with 1.5MHz fixed-frequency PWM operation at medium-to-heavy loads and automatic transition to pulse frequency modulation (PFM) under light-load conditions to sustain >90% efficiency down to 10mA. Its integrated 220mΩ high-side and 170mΩ low-side MOSFETs enable full 100% duty-cycle low-dropout operation and eliminate external diode requirements.
It uses a precision 100mV ±5% FB reference voltage that scales linearly with PWM duty cycle (1–100%), enabling accurate analog dimming without external DACs. Protection includes LED open/short detection, FB resistor fault sensing, thermal shutdown (150°C trip), and high-side current limiting at 1.9A–2.16A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, USB-powered, and 3.3V/5V rail systems without pre-regulation. |
| Output Current | 1.5A constant - drives high-brightness IR LEDs or multiple white LEDs in series/parallel configurations. |
| Switching Frequency | 1.5MHz - enables use of small 2.2µH inductors and ceramic capacitors for space-constrained PCB layouts. |
| Feedback Reference | 100mV ±5% - sets LED current via external RSENSE; accuracy maintained across –55°C to +125°C ambient. |
| Shutdown Current | 0.1µA - extends battery life in always-on surveillance devices like video doorbells during standby. |
| Operating Ambient | –55°C to +125°C - qualified for extended-temperature industrial and automotive cabin applications. |
| Efficiency | Up to 95% - achieved with integrated FETs and adaptive PFM/PWM mode switching across full load range. |
Pinout & Package
TPS92201AMDRVR is housed in a 2mm × 2mm WSON-6 package with wettable flanks, optimized for automated optical inspection (AOI) and thermal performance (RθJA = 82.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWM | Digital dimming input | Accepts 20kHz–200kHz PWM signal; duty cycle directly maps to FB voltage (1% → 1mV, 100% → 100mV) for precise current scaling. |
| EN | Enable control | Logic-high active; must be terminated - floating EN causes undefined startup/shutdown behavior and potential latch-up. |
| VIN | Main power input | Supplies internal circuitry and high-side switch; requires local 4.7µF ceramic decoupling within 3mm of pin. |
| SW | Switch node | Connects to inductor and internal FETs; high dv/dt node requiring tight layout, minimal trace length, and guard ring grounding. |
| GND | Power ground | Common return for VIN, SW, FB, and EN; must tie directly to thermal pad and solid inner-layer ground plane. |
| FB | Current-sense feedback | Connects to RSENSE to GND; sensitive analog node - routed away from SW, VIN, and digital traces to avoid noise-induced regulation error. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode | Automatic PFM entry below ~100mA load maintains >85% efficiency without external control logic or mode pins. |
| 100% Duty Cycle Operation | Enables VOUT ≥ VIN − IOUT×RDS(ON) − VFB, supporting ultra-low headroom LED strings (e.g., 1.8V IR LED from 2.5V supply). |
| Integrated FETs | 220mΩ HS / 170mΩ LS MOSFETs eliminate external diode and reduce BOM count by two components versus asynchronous designs. |
| Thermal Shutdown | 150°C junction trip with hysteresis ensures safe recovery after overload or poor heatsinking - no latch-off required. |
| LED Fault Protection | Detects open-circuit, short-circuit, and FB resistor faults; responds with controlled shutdown or continuous minimum-on-time switching per fault type. |
Applications
| Smart Home Camera Illumination | IP Camera Night Vision |
|---|---|
Use Scenario: Driving high-power 850nm IR LEDs for covert night vision in indoor/outdoor security cameras with battery backup. IC Role / Device Role / Timing Role: Constant-current buck regulator with analog-dimming interface; synchronizes LED current to camera exposure timing via PWM input. Use Value: Enables flicker-free illumination matching frame rate while maintaining >90% efficiency at 200mA–1.5A output, extending runtime in portable units. |
Use Scenario: Powering multi-LED arrays in outdoor IP cameras exposed to wide temperature swings (–40°C to +85°C). IC Role / Device Role / Timing Role: Primary LED driver with extended-temp qualification (–55°C to +125°C); regulates current independent of input rail sag during PoE surge events. Use Value: Delivers stable 1.5A output across full ambient range using internal thermal protection and 100mV FB reference with <±5% drift. |
| Video Doorbell Flash | Smart Doorlock Status Lighting |
Use Scenario: Short-duration, high-intensity LED bursts for motion-triggered doorbell illumination with ultra-low quiescent current. IC Role / Device Role / Timing Role: Fast-response LED driver activated by microcontroller GPIO; enters 0.1µA shutdown between events. Use Value: Achieves sub-100µs startup time and <1% current overshoot during burst mode, minimizing battery drain over years of intermittent use. |
Use Scenario: Low-profile status lighting on battery-powered smart locks with strict PCB area constraints and thermal limits. IC Role / Device Role / Timing Role: Compact WSON-6 LED driver with integrated FETs; eliminates external Schottky diode and reduces footprint by 30% vs discrete solutions. Use Value: Fits within 3mm × 3mm board area while delivering 500mA at 93% efficiency, with thermal pad soldered to inner ground layer for passive cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS92201ADRVR | Same WSON-6 package and Power Save Mode, but rated for –40°C to +85°C ambient (not extended temp). | Lacks –55°C start-up capability; unsuitable for automotive cabin or unheated outdoor enclosures. | Select when cost sensitivity outweighs extended temperature need and system ambient stays above –40°C. |
| TPS92201AMDRLR | SOT563-6 package (1.6mm × 1.6mm), identical electrical specs and extended temperature rating. | Smaller footprint but higher RθJA (152°C/W vs 82.6°C/W); requires more aggressive thermal design for 1.5A continuous. | Choose for ultra-compact designs where board area is critical and average load is ≤800mA. |
Compared with TPS92201AMDRVR, TPS92201ADRVR trades extended temperature support for lower cost, while TPS92201AMDRLR offers 30% smaller footprint at the expense of thermal derating - both retain identical dimming linearity, protection set, and 1.5MHz operation.
Availability
TPS92201AMDRVR is available at Aetrix Electronics and suitable for smart home camera illumination, IP camera night vision, and video doorbell flash applications requiring stable component supply, extended-temperature reliability, and long-term production continuity.
Supply support for TPS92201AMDRVR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs and high-reliability industrial solutions.
The TPS92201A product line delivers highly integrated, thermally robust LED drivers for battery-powered imaging systems - engineered specifically for low-noise dimming, extended temperature operation, and minimal external component count.
FAQ
What is the operating temperature range for TPS92201AMDRVR?
The TPS92201AMDRVR is specified for an operating ambient temperature range of –55°C to +125°C, making it suitable for harsh environments such as automotive cabin modules or unheated outdoor surveillance equipment. This extended range is explicitly confirmed in the device comparison table and electrical characteristics section of the official datasheet, distinguishing it from standard-grade variants like TPS92201ADRVR.
Does TPS92201AMDRVR support analog dimming?
Yes, TPS92201AMDRVR supports true analog dimming via its PWM input pin: the FB reference voltage scales linearly from 1mV at 1% duty cycle to 100mV at 100% duty cycle, enabling precise current control without audible noise. This behavior is documented in Figure 7-2 and Section 7.3.6 of the datasheet, and applies identically across the full –55°C to +125°C operating range.
What package type does TPS92201AMDRVR use?
TPS92201AMDRVR uses the WSON-6 (DRV) package - a 2mm × 2mm, 0.75mm height, wettable flank封装 with exposed thermal pad. This is confirmed in the Device Information table and Pin Configuration section, and differs from the SOT563 option used by TPS92201AMDRLR. The DRV package provides superior thermal performance (RθJA = 82.6°C/W) for 1.5A continuous operation.
How does Power Save Mode function in TPS92201AMDRVR?
In TPS92201AMDRVR, Power Save Mode automatically engages during light-load conditions (<~100mA), switching from fixed 1.5MHz PWM to variable-frequency PFM to maintain >85% efficiency. This mode reduces switching losses and quiescent current without external control - a feature exclusive to the "A" variant and confirmed in Sections 1, 7.3.2, and 7.4.2 of the datasheet.
What protections are built into TPS92201AMDRVR?
TPS92201AMDRVR integrates LED open/short detection, FB resistor open/short fault response, thermal shutdown (150°C), high-side current limiting (1.9A–2.16A), and UVLO (2.2V falling threshold). Each fault triggers a defined behavior - e.g., LED open causes SW to remain high - as detailed in Table 7-1 and Section 7.3.8, ensuring predictable system-level failure handling.
TPS92201AMDRVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 0.6V ~ 5.5V
- Current - Output / Channel:
- 1.5A
- Frequency:
- 1.5MHz
- Dimming:
- PWM
- Applications:
- Camera Flash
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS92201AMDRVR FAQ
1.How can I place an order for TPS92201AMDRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92201AMDRVR 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 TPS92201AMDRVR reliable?
The price and inventory of TPS92201AMDRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92201AMDRVR is usually 5 days.
3.What payment methods are accepted for TPS92201AMDRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92201AMDRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92201AMDRVR?
TPS92201AMDRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92201AMDRVR 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 TPS92201AMDRVR?
For technical support, including TPS92201AMDRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92201AMDRVR requirements.
6.How does Aetrix verify that TPS92201AMDRVR is sourced from the original manufacturer or authorized distributors?
All TPS92201AMDRVR 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 TPS92201AMDRVR meets industry standards.
7.What is the process for return or replacement of TPS92201AMDRVR?
All TPS92201AMDRVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS92201AMDRVR, 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 TPS92201AMDRVR part is unused and in its original packaging.
Return procedure for TPS92201AMDRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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