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Texas Instruments LM36010YKBR
- Part No.:
- LM36010YKBR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-XFBGA, DSBGA
- Datasheet:
-
LM36010YKBR.pdf
- Description:
- IC LED DRVR RGLTR NO 1.5A 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:149
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Product details
Overview
LM36010YKBR from Texas Instruments is a synchronous-boost, single-LED flash driver with 1.5-A high-side current source, operating from 2.5 V to 5.5 V input and delivering programmable flash currents up to 1.5 A (128 levels) and torch currents up to 376 mA. It integrates a 2-MHz or 4-MHz fixed-frequency boost converter and supports hardware strobe control for mobile camera flash applications.
For engineers reviewing the LM36010YKBR datasheet, LM36010YKBR pinout, LM36010YKBR application, or LM36010YKBR equivalent, this device is selected for compact, thermally optimized LED flash systems requiring precise current regulation, I²C programmability, and adaptive low-battery flash current scaling in space-constrained handheld imaging designs.
Technical Context
The LM36010YKBR employs a current-mode PWM synchronous boost architecture with selectable 2-MHz or 4-MHz switching frequency, enabling use of sub-1-mm-height inductors and ceramic capacitors. Its adaptive regulation maintains LED current accuracy across input voltage (2.5–5.5 V) and temperature (−40°C to +85°C) while dynamically transitioning between pass mode (VOUT ≈ VIN − ILED×RPMOS) and boost mode based on headroom voltage (VHR = 550 mV flash / 350 mV torch).
Control is implemented via a 400-kHz I²C-compatible interface (address 0x64) managing flash/torch brightness registers, flash time-out (up to 1.6 s), IVFM threshold (2.9–3.6 V), and fault flags including OVP (5.0 V typ), thermal scale-back (125°C), and LED short detection. Hardware STROBE enables level-sensitive flash triggering with internal 300-kΩ pulldown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion and USB-powered systems without external LDO. |
| Max Flash Current | 1.5 A ±10% - delivered with 128-step programmability and thermal/IVFM-adaptive scaling. |
| Max Torch Current | 376 mA ±10% - supports video illumination with 128-level resolution and configurable ramp rate. |
| Switching Frequency | 2 MHz or 4 MHz ±10% - enables <7 mm² total solution size using 1-µH low-profile inductor. |
| I²C Address | 0x64 - standard 7-bit address supporting multi-device bus configuration without conflict. |
| Overvoltage Protection | 5.0 V typical (4.86–5.10 V window) - prevents damage during open-LED fault conditions. |
| Thermal Shutdown | 150°C junction (disengage at 135°C) - ensures reliability under sustained high-current flash operation. |
Pinout & Package
LM36010YKBR is housed in an 8-pin DSBGA (YKB) package measuring 1.512 mm × 0.800 mm with 0.4-mm pitch, optimized for ultra-thin mobile PCBs and thermal conduction through solder bumps to the PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (A1) | Ground reference | Primary return path for all internal circuits and power stages; must be connected to low-impedance system ground plane. |
| IN (A2) | Input power supply | Accepts 2.5–5.5 V; requires ≥10-µF ceramic bypass capacitor to GND for stable boost operation. |
| SW (B1) | Internal switch node | Connects to external inductor; carries high di/dt switching current - requires short, low-inductance layout. |
| STROBE (B2) | Hardware flash enable | Active-high logic input with 300-kΩ internal pulldown; triggers immediate flash activation independent of I²C state. |
| OUT (C1) | Boost converter output | Supplies regulated voltage to LED current source; requires 10-µF ceramic capacitor to GND for ripple suppression. |
| SDA (C2) | I²C data line | Open-drain bidirectional interface; requires external pull-up resistor (typically 2.2–10 kΩ to VIN). |
| LED (D1) | High-side LED current output | Sinks up to 1.5 A; grounded-cathode topology improves thermal dissipation into PCB copper. |
| SCL (D2) | I²C clock input | Drives 400-kHz I²C timing; synchronized with SDA for register read/write and status flag polling. |
Key Features
| Feature | Design Value |
|---|---|
| Grounded-cathode LED drive | Enables direct thermal coupling of LED anode to PCB copper, reducing junction temperature rise by >15°C vs floating-cathode alternatives. |
| Adaptive IVFM current scaling | Reduces flash current in real time when VIN drops below user-configurable 2.9–3.6 V threshold, preventing battery brownout during capture. |
| Programmable flash time-out | Configurable up to 1.6 seconds via I²C register, preventing thermal runaway and ensuring consistent exposure duration. |
| Thermal current scale-back | Automatically clamps flash current to torch level at 125°C junction, maintaining partial functionality instead of hard shutdown. |
| Pass-mode efficiency optimization | Disables switching when VIN > VLED + VHR, achieving >95% efficiency at high input voltages and low LED forward voltage. |
Applications
| Mobile Camera Flash | IR Illumination for Night Vision |
|---|---|
|
Use Scenario: High-intensity still-image capture in low-light smartphones and tablets with strict board area constraints. IC Role / Device Role / Timing Role: Primary flash current source with hardware STROBE-triggered pulse, I²C-programmed brightness, and thermal/IVFM protection. Use Value: Delivers 1.5-A peak flash current within <7 mm² footprint while maintaining ±10% accuracy across −40°C to +85°C ambient. |
Use Scenario: Covert infrared illumination for security cameras and biometric sensors requiring invisible 850-nm LED drive. IC Role / Device Role / Timing Role: IR Mode driver with level-sensitive STROBE control, enabling externally timed burst illumination without I²C latency. Use Value: Supports immediate on/off LED transitions and pass-mode operation at VIN ≈ VLED, minimizing power loss and heat generation. |
| Barcode Scanner Illumination | Portable Data Terminal Lighting |
|
Use Scenario: Short-duration, high-brightness LED pulses for rapid barcode decoding in handheld scanners. IC Role / Device Role / Timing Role: Precision current source with sub-100-ms flash time-out and hardware STROBE edge triggering for deterministic timing. Use Value: Ensures consistent optical output intensity across varying battery voltage (2.5–5.5 V) and ambient temperature. |
Use Scenario: Dual-mode lighting (flash for capture, torch for UI illumination) in rugged industrial PDAs and field service devices. IC Role / Device Role / Timing Role: Single-chip solution providing both 1.5-A flash and 376-mA torch with shared I²C control and thermal management. Use Value: Eliminates need for separate flash/torch drivers, reducing BOM count and PCB area while supporting extended runtime via low IQ (0.3 mA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED flash driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM36011YKBR | Same pinout and register map; adds integrated thermal foldback and enhanced IVFM hysteresis. | Preferred for new designs requiring tighter thermal margin control in high-density camera modules. | Select LM36011YKBR when thermal robustness under continuous flash cycling is critical; LM36010YKBR remains optimal for cost-sensitive, volume production. |
| MAX77691EWL+T | 3.2-A max flash current, wider 2.7–5.5 V input, but larger 12-ball WLP package and no hardware STROBE. | Suited for high-power dual-LED or RGB flash systems where software-controlled timing suffices. | Choose MAX77691EWL+T only if >1.5-A current or multi-LED support is required; LM36010YKBR offers superior size and STROBE responsiveness for single-LED mobile use. |
Compared with LM36011YKBR and MAX77691EWL+T, the LM36010YKBR delivers the smallest footprint (1.512 × 0.800 mm), fastest hardware-triggered response, and lowest quiescent current (0.3 mA), making it the optimal choice for space- and power-constrained single-LED flash systems where thermal scale-back and IVFM are managed at system level.
Availability
LM36010YKBR is available at Aetrix Electronics and suitable for mobile camera flash, IR illumination, barcode scanning, and portable data terminal applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LM36010YKBR 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 and embedded processing technologies, with decades of expertise in power management and precision analog ICs.
The LM36010YKBR belongs to TI's LED flash driver product line, engineered specifically for ultra-compact, thermally efficient mobile imaging systems requiring high-accuracy, programmable current sources with minimal external components.
FAQ
What is the maximum LED flash current supported by the LM36010YKBR?
The LM36010YKBR supports a maximum LED flash current of 1.5 A ±10%, programmable across 128 discrete levels via the LED Flash Brightness Register (0x03). This rating is validated over the full operating temperature range (−40°C to +85°C) and input voltage range (2.5 V to 5.5 V), subject to thermal derating per PCB layout and ambient conditions. The LM36010YKBR achieves this using its synchronous boost architecture and high-side current source with 550-mV headroom voltage.
Does the LM36010YKBR support hardware-triggered flash operation?
Yes, the LM36010YKBR features a dedicated STROBE pin (B2) that provides hardware-triggered flash activation. When driven high, STROBE immediately initiates the programmed flash sequence without I²C intervention. An internal 300-kΩ pulldown resistor ensures safe default-off behavior. In IR Mode, STROBE operates as a level-sensitive enable, allowing externally timed bursts - a capability not available in software-only controlled alternatives like the MAX77691EWL+T.
How does the LM36010YKBR handle low-input-voltage conditions during flash operation?
The LM36010YKBR implements Input Voltage Flash Monitor (IVFM) to dynamically scale flash current when VIN falls below a user-configurable threshold (2.9 V to 3.6 V in 100-mV steps, set via Configuration Register 0x02 bits [7:5]). This prevents battery brownout and maintains system stability during flash pulses. Unlike fixed-current drivers, the LM36010YKBR reduces LED current in real time while preserving timing integrity - a feature confirmed in TI's Electrical Characteristics table and Figure 6–7 of the SNVSAN4B datasheet.
What package type and dimensions does the LM36010YKBR use?
The LM36010YKBR uses an 8-pin DSBGA (Die Size Ball Grid Array) package designated YKB, with nominal body dimensions of 1.512 mm × 0.800 mm and 0.4-mm ball pitch. This ultra-compact package enables <7 mm² total solution size when combined with a 1-µH inductor and two 10-µF ceramic capacitors. Thermal performance is enhanced via direct solder-bump conduction to the PCB ground plane, as specified in TI's Thermal Information table (RθJB = 34.3°C/W).
Can the LM36010YKBR operate in torch mode for video illumination?
Yes, the LM36010YKBR supports torch mode with programmable current from 2.4 mA to 376 mA across 128 levels, configured via the LED Torch Brightness Register (0x04). Torch mode activates via I²C command (Enable Register 0x01 bits [1:0] = 10) and includes configurable ramp rate control. Its 350-mV headroom voltage and pass-mode efficiency (>95% at VIN > VLED + 350 mV) make it suitable for sustained video illumination while minimizing thermal load - a key differentiator from non-torch-capable flash drivers.
LM36010YKBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- -
- Current - Output / Channel:
- 1.5A
- Frequency:
- 4MHz
- Dimming:
- No
- Applications:
- Mobile Communications
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DSBGA (1.51x0.8)
LM36010YKBR FAQ
1.How can I place an order for LM36010YKBR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM36010YKBR 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 LM36010YKBR reliable?
The price and inventory of LM36010YKBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM36010YKBR is usually 5 days.
3.What payment methods are accepted for LM36010YKBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM36010YKBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM36010YKBR?
LM36010YKBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM36010YKBR 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 LM36010YKBR?
For technical support, including LM36010YKBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM36010YKBR requirements.
6.How does Aetrix verify that LM36010YKBR is sourced from the original manufacturer or authorized distributors?
All LM36010YKBR 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 LM36010YKBR meets industry standards.
7.What is the process for return or replacement of LM36010YKBR?
All LM36010YKBR units undergo pre-shipment inspection (PSI). If there is an issue with LM36010YKBR, 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 LM36010YKBR part is unused and in its original packaging.
Return procedure for LM36010YKBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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