My Inquiry
My Account
Texas Instruments LM3565TLE/NOPB
- Part No.:
- LM3565TLE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-WFBGA, DSBGA
- Datasheet:
-
LM3565TLE/NOPB.pdf
- Description:
- IC LED DRVR RGLTR PWM 9 16DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,420
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM3565TLE/NOPB from Texas Instruments is a 4 MHz synchronous boost LED flash driver IC designed to deliver up to 930 mA into two series-connected white LEDs, featuring hardware-triggered strobe/torch control, 8-bit ADC for input/LED voltage monitoring, and I²C-compatible interface. It operates across 2.5–5.5 V input, supports adaptive flash scaling, and targets camera phone flash systems requiring high-current, low-noise, and fast-ramp LED control.
For engineers reviewing the LM3565TLE/NOPB datasheet, LM3565TLE/NOPB pinout, LM3565TLE/NOPB application, or LM3565TLE/NOPB equivalent, key selection criteria include its dual-mode (flash/assist) current source architecture, 16-bump DSBGA package with dedicated TORCH/STROBE/TX-MASK pins, thermal and over-voltage fault reporting, and programmable inductor current limits for optimized efficiency across battery voltage ranges.
Technical Context
The LM3565TLE/NOPB integrates a fixed-frequency 4 MHz current-mode PWM boost converter with dual SW outputs driving external inductors, coupled to a single high-side current sink that regulates LED current with ≤5% accuracy and 300 mV headroom. Its control logic supports both I²C register-based configuration and direct hardware triggering via STROBE (edge- or level-sensitive) and TORCH pins.
It includes an 8-bit ADC for real-time VIN and VLED measurement, four selectable peak inductor current limits (2.3 A to 3.3 A), and comprehensive fault detection-OVP (9.0–10.0 V), UVLO (2.3–2.5 V), thermal shutdown (150°C), short-circuit, and flash timeout-with status reported via fault registers accessible over I²C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion and Li-poly battery operation without pre-regulation |
| Max Flash LED Current | 930 mA - programmable in 30 mA steps (480–930 mA), enabling precise brightness control |
| Boost Switching Frequency | 4.0 MHz ±5% - enables use of compact 1 µH inductors and reduces EMI filtering requirements |
| Current Source Accuracy | ±5% - ensures consistent LED luminance across temperature and supply variations |
| ADC Resolution | 8-bit - provides 31.4–50 mV step size for VIN/VLED monitoring during flash assist events |
| Package | 16-bump DSBGA (1.99 mm × 1.99 mm × 0.6 mm) - ultra-compact footprint for space-constrained mobile camera modules |
| I²C Interface Speed | 400 kHz - compatible with standard Fast-mode I²C controllers in baseband processors |
Pinout & Package
LM3565TLE/NOPB uses a 16-bump, 1.990 mm × 1.990 mm × 0.6 mm DSBGA package (YZR0016AAA) with bumps arranged in a 4×4 grid. Power and ground pins are duplicated for low-impedance return paths and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1, A2 | PGND | Power ground connection - must be tied directly to PCB power plane for low-noise switching return |
| A3 | VIN | Main input supply - requires local 10 µF ceramic bypass capacitor placed adjacent to pin |
| A4 | ENABLE | Chip enable control - low = shutdown (1 µA), high = standby (1 µA), allows wake-up via TORCH |
| B1, B2 | SW1, SW2 | Boost switch node outputs - connect to separate 1 µH inductors for dual-path energy transfer |
| B3 | TORCH | Hardware torch enable - high pulse activates constant-current assist mode (60/90 mA) |
| B4 | TX-MASK | RF transmit interrupt - high asserts current reduction to prevent battery overcurrent during PA burst |
| C1, C2 | VOUT1, VOUT2 | Boost output nodes - tied together externally; require local 10 µF output capacitors |
| C3 | STROBE | Hardware flash trigger - rising edge (or level) initiates flash ramp-up; supports PWM modulation |
| C4 | SDA | I²C data line - bidirectional, open-drain, requires external pull-up to VIO |
| D1, D2 | LEDOUT1, LEDOUT2 | High-side LED current outputs - connected in parallel to drive two-series WLED string to GND |
| D3 | AGND | Analog ground - isolated reference for ADC and internal comparators; connect to clean analog ground plane |
| D4 | SCL | I²C clock input - driven by host processor; 400 kHz max frequency, requires external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Flash Scaling | Adjusts maximum flash current based on real-time VIN measurement to maintain consistent light output across battery discharge |
| Dedicated TX-MASK Pin | Enables hardware-level coordination with RF power amplifier to reduce LED current during TX bursts, preventing battery sag-induced system reset |
| Strobe-Modulated PWM | Allows dynamic current adjustment during flash/assist via external STROBE toggling - full current when high, reduced current (≥60 mA) when low |
| Integrated Fault Reporting | Registers OVP, UVLO, thermal shutdown, VOUT/VLED shorts, and flash timeout in dedicated fault registers (0x08/0x09) readable over I²C |
| Four Inductor Current Limits | Selectable via register (2.3/2.6/2.9/3.3 A) to match inductor saturation rating and optimize efficiency vs. size trade-off |
Applications
| Smartphone Camera Flash | Tablet Imaging Module |
|---|---|
Use Scenario: Front/rear camera module in Android/iOS smartphones requiring high-intensity, low-latency flash illumination synchronized with image capture. IC Role / Device Role / Timing Role: High-current flash driver with hardware STROBE synchronization and adaptive current scaling to compensate for Li-ion battery voltage drop. Use Value: Delivers stable 930 mA flash current across 3.0–4.2 V battery range, reducing luminance variation by >25% versus fixed-current drivers. | Use Scenario: Dual-camera array in premium tablets where spatially uniform flash coverage and thermal management are critical. IC Role / Device Role / Timing Role: Dual-path synchronous boost controller with independent SW1/SW2 outputs and shared current sink, enabling balanced power delivery to multiple LED strings. Use Value: Achieves >85% peak efficiency at 750 mA while maintaining <100 mV LED current ripple, minimizing thermal stress on optical components. |
| Mobile Barcode Scanner | Portable Medical Endoscope |
Use Scenario: Handheld industrial barcode scanners needing brief, high-intensity illumination pulses for rapid decode under low ambient light. IC Role / Device Role / Timing Role: Torch-assist mode driver with 60/90 mA continuous output and <1.4 ms current ramp-up time for instant-on functionality. Use Value: Enables sub-10 ms total system wake-to-flash latency using TORCH pin, eliminating I²C transaction overhead. | Use Scenario: Single-use or reusable endoscopic imaging probes requiring reliable, low-noise LED illumination with built-in fault diagnostics. IC Role / Device Role / Timing Role: Safety-critical flash controller with OVP, short-circuit, and thermal shutdown reporting via I²C for real-time system health monitoring. Use Value: Prevents LED overvoltage damage during cable disconnect events and reports faults to host MCU before thermal runaway occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED flash driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3560TLE/NOPB | Lower max flash current (750 mA), no TX-MASK pin, identical DSBGA-16 package and I²C interface | Lacks hardware RF coordination capability; suitable only for non-cellular imaging devices | Select when flash current ≤750 mA suffices and RF coexistence is not required |
| TPS61310DSQR | Non-flash-specific boost + current sink; no integrated STROBE/TORCH logic, no fault registers, 10-pin WSON package | Requires external GPIO sequencing and firmware fault handling; higher BOM count and layout complexity | Select for cost-sensitive designs where full flash feature set is unnecessary and software control is preferred |
Compared with LM3565TLE/NOPB, LM3560TLE/NOPB offers reduced flash capability but identical footprint and control interface, while TPS61310DSQR demands additional discrete logic and firmware to replicate hardware-triggered modes and fault reporting - making LM3565TLE/NOPB optimal for cellular camera modules requiring robust, integrated flash control.
Availability
LM3565TLE/NOPB is available at Aetrix Electronics and suitable for smartphone camera modules, tablet imaging subsystems, portable medical endoscopes, industrial barcode scanners, and automotive rear-view camera flash systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LM3565TLE/NOPB 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and power efficiency.
The LM3565 belongs to TI's mobile LED driver product line, engineered specifically for high-current flash and assist lighting in space-constrained camera modules, integrating power conversion, current regulation, hardware timing, and diagnostics in a single DSBGA package.
FAQ
What is the maximum LED current supported by the LM3565TLE/NOPB?
The LM3565TLE/NOPB supports a maximum flash LED current of 930 mA, programmable in 30 mA increments from 480 mA to 930 mA via its Current Set Register (0x02). In torch/assist mode, it delivers either 60 mA or 90 mA continuously. This current is regulated with ±5% accuracy across temperature and input voltage variations, and the device maintains regulation with only 300–350 mV headroom across the current source.
How does the TX-MASK pin function in the LM3565TLE/NOPB?
The TX-MASK pin in the LM3565TLE/NOPB provides hardware-level coordination with the RF power amplifier: when pulled high, it reduces the active flash current by a value programmed in the TX-Mask Register (0x03), preventing battery overcurrent during simultaneous TX and flash events. The current reduction is applied instantly (no ramp), while recovery to full current is ramped. This feature is essential for cellular camera modules to avoid brownouts during LTE/WCDMA transmission bursts.
Can the LM3565TLE/NOPB operate without I²C communication?
Yes, the LM3565TLE/NOPB can operate fully without I²C communication. Hardware pins TORCH and STROBE enable standalone torch (60/90 mA) and flash (programmed current) modes respectively. ENABLE pin controls standby/shutdown, and default register values (e.g., 750 mA flash, 60 mA torch) are active at power-up. I²C is required only for advanced configuration such as current level changes, fault register reads, or ADC data acquisition.
What protection features are integrated into the LM3565TLE/NOPB?
The LM3565TLE/NOPB integrates over-voltage protection (9.0–10.0 V on VOUT), under-voltage lockout (2.3–2.5 V on VIN), thermal shutdown (150°C junction), VOUT/VLED short-circuit detection, flash timeout, TX-MASK event flagging, and input low-voltage detect. All faults are latched and reported in the Fault and Info Register (0x08/0x09), accessible via I²C. No external components are needed to enable these protections.
What is the recommended inductor value for the LM3565TLE/NOPB?
The recommended inductor value for the LM3565TLE/NOPB is 1 µH, as validated in the typical application circuit and all efficiency/ripple characterization plots. TI specifies this value for operation across the full 2.5–5.5 V input range and 480–930 mA output current. Inductors must support ≥3.3 A peak current (per phase) and exhibit low DC resistance to maintain >85% efficiency at 930 mA; shielded power inductors with 20% tolerance are advised.
LM3565TLE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFBGA, 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:
- 5.5V ~ 8.5V
- Current - Output / Channel:
- 930mA (Flash)
- Frequency:
- 4MHz
- Dimming:
- PWM
- Applications:
- Camera Flash
- Operating Temperature:
- -30°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DSBGA (2.5x2.12)
LM3565TLE/NOPB FAQ
1.How can I place an order for LM3565TLE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3565TLE/NOPB 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 LM3565TLE/NOPB reliable?
The price and inventory of LM3565TLE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3565TLE/NOPB is usually 5 days.
3.What payment methods are accepted for LM3565TLE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3565TLE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3565TLE/NOPB?
LM3565TLE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3565TLE/NOPB 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 LM3565TLE/NOPB?
For technical support, including LM3565TLE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3565TLE/NOPB requirements.
6.How does Aetrix verify that LM3565TLE/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3565TLE/NOPB 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 LM3565TLE/NOPB meets industry standards.
7.What is the process for return or replacement of LM3565TLE/NOPB?
All LM3565TLE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3565TLE/NOPB, 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 LM3565TLE/NOPB part is unused and in its original packaging.
Return procedure for LM3565TLE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM3565TLE/NOPB 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…
