My Inquiry
My Account
Texas Instruments TPS65561RGTR
- Part No.:
- TPS65561RGTR
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS65561RGTR.pdf
- Description:
- IC PHOTO FLSH CHRGR/IGBT 16-QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,299
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS65561RGTR from Texas Instruments is an integrated photo flash charger and IGBT driver IC for xenon flash systems. It combines a 50-V integrated power switch, programmable peak current control (1.1–2.2 A), primary-side output voltage feedback, and thermal/overcurrent protection in a single 16-pin QFN package. It operates from 1.6 V to 12 V battery input and delivers fast, high-efficiency flash capacitor charging for digital still cameras.
For engineers reviewing the TPS65561RGTR datasheet, TPS65561RGTR pinout, TPS65561RGTR application, or TPS65561RGTR equivalent, key selection considerations include its integrated IGBT gate driver (G_IGBT), XFULL charge-complete open-drain output, SW terminal voltage rating up to 50 V, and programmable I_PEAK interface for adaptive peak current control.
Technical Context
The TPS65561RGTR implements a flyback-based DC-DC converter with primary-side regulation using zero-current detection (V(ZERO) = 1–60 mV) and full-charge detection (V(FULL) = 28.6–29.4 V). Its control loop uses fixed ON time (tMAX = 50–160 µs) and variable OFF time dependent on output voltage, enabling fast charge cycles without secondary-side sensing.
It integrates dual protection logic: OVDS overvoltage shutdown at SW pin (1.35–1.95 V threshold) and thermal shutdown at TJ = 150–170 °C. The IGBT driver provides rail-to-rail G_IGBT output (PGND to VCC) with pulldown resistance of 36–70 Ω and pullup resistance of 8–19.4 Ω, synchronized to CHG and F_ON inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | VBAT = 1.6 V to 12 V - supports single-cell Li-ion to multi-cell alkaline battery inputs |
| Switch voltage rating | V(SW) = −0.6 V to 50 V - enables safe operation with flyback transformer primary-side switching |
| Programmable peak current | I(PEAK) = 1.1 A to 2.2 A - set via analog voltage on I_PEAK pin (0.6–2.4 V range) |
| Charge completion detection | V(FULL) = 28.6–29.4 V - precise primary-side feedback eliminates optocoupler or secondary-side circuitry |
| Thermal shutdown threshold | TSD = 150–170 °C - latches off until die cools below threshold, preventing thermal runaway |
| Max ON time | tMAX = 50–160 µs - prevents indefinite conduction during low-battery or open-circuit fault conditions |
| IGBT gate drive resistance | R(IGBT1) = 8–19.4 Ω pullup / R(IGBT2) = 36–70 Ω pulldown - ensures fast, controlled IGBT turn-on/turn-off with minimal ringing |
Pinout & Package
TPS65561RGTR is housed in a 3 mm × 3 mm, 16-pin VQFN package (RGT) with exposed thermal pad (PowerPAD™) requiring PCB soldering for thermal and mechanical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Primary-side switch node | Connects to transformer primary; handles up to 50 V and 2.5 A peak current; monitored for OVDS and zero-current detection |
| VCC | Logic supply input | 2.7–4 V bias for internal circuitry; requires local 1-µF ceramic bypass to PGND |
| CHG | Charge enable input | Active-high digital control: rising edge initiates charging; falling edge terminates immediately |
| F_ON | IGBT flash trigger input | High-level signal (VIH ≥ 2 V) activates G_IGBT output when CHG is low, initiating xenon tube discharge |
| G_IGBT | IGBT gate driver output | Open-drain compatible rail-to-rail output (PGND to VCC); drives external IGBT base/gate with defined pullup/pulldown resistances |
| XFULL | Charge completion indicator | Open-drain output pulled low when V(SW) exceeds V(FULL); high-impedance during charging and fault states |
| I_PEAK | Peak current programming input | Analog input (0.6–2.4 V) setting I(SW) limit; supports logic-level or DAC-driven adaptive current control |
| VBAT | Battery input supply | 1.6–12 V main power path; requires dual bypass (10-µF + 1-µF ceramics) near IC for stability |
| PGND | Power ground | High-current return path for SW and internal switch; must connect to solid ground plane with low-inductance routing |
| NC | No internal connection | Pins 5, 8, 13, 16 - electrically isolated; no routing or termination required |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 50-V power switch | Eliminates external MOSFET and associated gate-drive components, reducing BOM count and board area in flash charger designs |
| Primary-side output voltage feedback | Removes need for secondary-side optocoupler or winding, simplifying isolation and improving reliability in compact camera modules |
| Programmable peak current via analog I_PEAK | Enables dynamic adaptation of charging current based on battery state-of-charge or system load (e.g., zoom motor activity) |
| Dual-protection architecture | Combines OVDS (SW pin overvoltage), MAX ON/OFF time limits, and thermal shutdown to prevent damage during transformer short, low-battery, or overheating events |
| Charge-complete open-drain output (XFULL) | Provides direct logic-level status signal to host controller without external level-shifting or pull-up resistor dependency |
Applications
| Digital Still Cameras | Optical Film Cameras |
|---|---|
Use Scenario: Charging a 300–400 V xenon flash capacitor from a 3.7 V Li-ion battery within ≤3 s. IC Role / Device Role / Timing Role: TPS65561RGTR acts as the core flash power management IC-controlling flyback conversion, monitoring primary-side voltage/current, and driving the IGBT to fire the flash tube. Use Value: Achieves <3 s recharge time with >85% efficiency while eliminating secondary-side sensing components and reducing total solution size by >40% vs. discrete designs. | Use Scenario: Enabling high-intensity flash in legacy film SLR cameras powered by AA/AAA batteries (1.6–4.8 V). IC Role / Device Role / Timing Role: TPS65561RGTR serves as the battery-to-flash-capacitor power converter and IGBT trigger controller, adapting peak current dynamically as battery voltage drops. Use Value: Maintains consistent flash intensity across battery life via I_PEAK voltage scaling, and avoids premature shutdown during lens motor actuation due to shared battery rail. |
| Compact Camera Modules | Industrial Flash Illumination Systems |
Use Scenario: Integrating flash functionality into space-constrained mobile phone or action camera modules. IC Role / Device Role / Timing Role: TPS65561RGTR functions as the monolithic flash charger and driver, interfacing directly with SoC GPIOs (CHG, F_ON) and providing XFULL status feedback. Use Value: Enables 3 mm × 3 mm footprint design with no external power switch or gate driver, meeting strict height (<1 mm) and thermal constraints of modern camera stacks. | Use Scenario: Providing repeatable high-energy flash pulses in machine vision lighting for barcode scanning or defect inspection. IC Role / Device Role / Timing Role: TPS65561RGTR operates as a robust, thermally managed flash controller-handling frequent charge/discharge cycles with built-in OVDS and thermal latch-off recovery. Use Value: Delivers stable pulse timing and energy per flash over extended duty cycles, with automatic fault recovery (thermal reset) minimizing system downtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photo flash charger and IGBT driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65560RGTR | Lacks integrated IGBT driver; requires external gate driver for flash discharge; same charger core and pinout except missing G_IGBT and F_ON pins | Suitable only when external IGBT driver is acceptable and board space allows added component | Select TPS65560RGTR if system already includes a dedicated IGBT driver or requires separate control timing for charging and flash firing |
| MAX16026ETA+ | Higher V(SW) rating (60 V); includes integrated 1.2-A MOSFET but no IGBT driver; uses different control architecture (current-mode PWM) | Targeted at lower-cost, lower-performance flash systems where charge time >5 s is acceptable | Choose MAX16026ETA+ when cost sensitivity outweighs charge speed requirements and external IGBT control is feasible |
Compared with TPS65561RGTR, TPS65560RGTR removes flash discharge capability but retains identical charging performance and footprint, while MAX16026ETA+ trades integrated IGBT drive for higher voltage tolerance and simpler control at the expense of charge speed and system integration level.
Availability
TPS65561RGTR is available at Aetrix Electronics and suitable for digital still cameras, optical film cameras, and compact camera modules requiring stable component supply, long-lifecycle support, and production-ready flash power management.
Supply support for TPS65561RGTR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions across industrial, automotive, and consumer markets.
The TPS65561RGTR belongs to TI's photo flash power management product line, designed specifically to replace multi-component discrete flash charger and IGBT driver circuits in portable imaging devices with a single, highly integrated IC.
FAQ
What is the maximum allowable voltage on the SW pin of the TPS65561RGTR?
The absolute maximum voltage on the SW pin of the TPS65561RGTR is 50 V. This rating enables safe operation with flyback transformer topologies where reflected voltage spikes may exceed input voltage. Operation beyond this limit risks permanent damage. The device includes OVDS protection that triggers at 1.35–1.95 V above VBAT on the SW pin during switch conduction to prevent overvoltage failure before reaching the absolute maximum.
How does the TPS65561RGTR determine when the flash capacitor is fully charged?
The TPS65561RGTR determines full charge by monitoring the SW node voltage relative to VBAT. When (V(SW) − VBAT) exceeds V(FULL) = 28.6–29.4 V, the internal comparator asserts the XFULL pin low. This primary-side sensing eliminates secondary-side components. The threshold is internally trimmed and stable across temperature, ensuring accurate end-of-charge detection without external calibration.
Can the TPS65561RGTR drive an IGBT without external components?
Yes, the TPS65561RGTR can drive an external IGBT directly via its G_IGBT pin, which provides rail-to-rail output (PGND to VCC) with specified pullup (8–19.4 Ω) and pulldown (36–70 Ω) resistances. No external gate resistor or driver stage is required for standard small-signal IGBTs used in xenon flash applications. However, layout must minimize trace inductance between G_IGBT and IGBT gate to avoid oscillation.
What happens if the battery voltage drops below 1.6 V during charging with the TPS65561RGTR?
If VBAT falls below 1.6 V during operation, the TPS65561RGTR enters undervoltage lockout (UVLO) and halts switching. The device maintains its last known state (CHG remains latched if active) but ceases energy transfer. Once VBAT rises above 1.6 V, normal operation resumes without reset. This behavior prevents erratic charging or excessive stress on the internal switch under brownout conditions.
Is the TPS65561RGTR RoHS compliant and what is its moisture sensitivity level?
Yes, the TPS65561RGTR is RoHS compliant (lead-free, NIPDAU finish) and rated MSL Level-2-260°C-1 year per JEDEC J-STD-020. This means it may be stored for up to one year at ≤30 °C/60% RH and requires reflow within 1 year of dry pack opening at peak temperature ≤260 °C. The exposed thermal pad must be soldered to ensure compliance with thermal and mechanical specifications.
TPS65561RGTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Photoflash Capacitor Charger, Xenon
- Current - Supply:
- 1.3mA
- Voltage - Supply:
- 2.7V ~ 4V
- Operating Temperature:
- -35°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS65561RGTR FAQ
1.How can I place an order for TPS65561RGTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS65561RGTR 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 TPS65561RGTR reliable?
The price and inventory of TPS65561RGTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS65561RGTR is usually 5 days.
3.What payment methods are accepted for TPS65561RGTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS65561RGTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS65561RGTR?
TPS65561RGTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS65561RGTR 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 TPS65561RGTR?
For technical support, including TPS65561RGTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS65561RGTR requirements.
6.How does Aetrix verify that TPS65561RGTR is sourced from the original manufacturer or authorized distributors?
All TPS65561RGTR 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 TPS65561RGTR meets industry standards.
7.What is the process for return or replacement of TPS65561RGTR?
All TPS65561RGTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS65561RGTR, 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 TPS65561RGTR part is unused and in its original packaging.
Return procedure for TPS65561RGTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS65561RGTR Tags
-
TPS2511DGNR
Texas Instruments
-
UTC2000/MG
Microchip Technology
-
TUSB320HAIRWBR
Texas Instruments
-
TPS61252DSGR
Texas Instruments
-
PI5USB30216CXUAEX
Diodes Incorporated
-
SN6501DBVR
Texas Instruments
-
CYPD3177-24LQXQT
Infineon Technologies
-
SN6501QDBVRQ1
Texas Instruments
-
STUSB1600AQTR
STMicroelectronics
-
SN6505BDBVR
Texas Instruments
-
SN6501DBVT
Texas Instruments
-
TPS65150PWPR
Texas Instruments
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…
