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T880N18TOFXPSA1
Electronics Part Number
T880N18TOFXPSA1-WXManufacturer
Texas Instruments
T880N18TOFXPSA1
Description
DO200AB SCR module, 1800V 1750AInventory
31 Pcs New Original In Stock
Thyristor module, DO-200AB B-PUK, 1.8kV/1750A, clamp-on. Compact, high-efficiency. Used in traction, power supplies, motor control.
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Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Manufacturer
Texas Instruments
Packaging
Tube
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Through Hole
Package / Case
TO-220-5 Formed Leads
Series
-
Base Product Number
TL2575
Product Status
Active
Output Type
Fixed
Number of Outputs
1
Voltage - Input (Min)
4.75V
Voltage - Input (Max)
60V
Topology
Buck
Function
Step-Down
Supplier Device Package
TO-220-5
Voltage - Output (Max)
-
Current - Output
1A
Output Configuration
Positive
Frequency - Switching
52kHz
Voltage - Output (Min/Fixed)
15V
Synchronous Rectifier
No
Data Sheet Document (D)
Datasheets
Download TL2575HV-15IKV Product Specification (PDF)
HTML Datasheet
TL2575HV-15IKV-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
Not Applicable
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
TEXTISTL2575HV-15IKV -296-21502-5-DG 2156-TL2575HV-15IKV -TL2575HV-15IKV-NDR -296-21502-5 296-21502-5
Standard Package
50
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Frequently Asked Questions (FAQ)
What are the key thermal design considerations when using the TL2575HV-15IKV in a high-ambient-tempe
The TL2575HV-15IKV has a junction-to-ambient thermal resistance of approximately 50°C/W in still air (TO-220-5 package), so at 1A output and a 48V input, power dissipation can exceed 4.8W—pushing junction temperatures beyond safe limits without proper heatsinking. In high-ambient environments (>50°C), you must use a finned heatsink with thermal resistance below 10°C/W and ensure minimal thermal interface resistance. Avoid relying solely on PCB copper; instead, bolt the device to a chassis-mounted heatsink. Monitor TJ using the formula TJ = TA + (PD × θJA), and derate output current if TA exceeds 70°C to prevent thermal shutdown or long-term reliability degradation.
Can the TL2575HV-15IKV safely replace a failed LM2575HV-15 in an existing 48V-to-15V industrial powe
Yes, the TL2575HV-15IKV is a direct functional and pin-compatible upgrade to the LM2575HV-15, with improved efficiency and tighter output regulation. However, verify your input capacitor ESR—TI recommends low-ESR aluminum electrolytic or tantalum types (e.g., Panasonic FR series, 100µF/63V). Also confirm your inductor meets the 100µH minimum with saturation current >1.5A (e.g., Bourns RLB9014-101KL). While dropout voltage is similar (~2V at 1A), the TL2575HV-15IKV has better line regulation, so minor output voltage drift under load transients may improve—no layout changes are typically needed, but revalidate stability if feedback compensation was marginal.
What failure modes should I anticipate if the TL2575HV-15IKV is operated near its 60V input maximum
Operating the TL2575HV-15IKV near 60V input risks catastrophic failure from voltage spikes exceeding the absolute maximum rating. In automotive (load dump) or telecom (ringing on long cables), transients can reach 80–100V. Without input protection, the internal power switch may avalanche or rupture. Mitigate this by adding a 68V TVS diode (e.g., SMAJ58A) close to the VIN pin and a 10Ω series resistor with a 100nF ceramic capacitor for snubbing. Also, ensure your input bulk capacitor (≥47µF) has a 75V+ rating. Continuous operation above 55V input accelerates electromigration and reduces MTBF—consider a pre-regulator or switching to a higher-voltage alternative like the LM5007 if transients are frequent.
How do I ensure stable operation of the TL2575HV-15IKV when powering a digital load with high inrush
Large output capacitance (>1000µF) can destabilize the TL2575HV-15IKV due to reduced phase margin, potentially causing oscillations or subharmonic ringing. To maintain stability, add a small series resistor (0.1–0.5Ω, 1W) between the regulator output and the bulk capacitor bank to increase ESR and dampen LC resonance. Alternatively, use a feedforward capacitor (10–100nF) across the upper feedback resistor (if using adjustable version)—but since the TL2575HV-15IKV is fixed 15V, rely on output capacitor selection: TI recommends a minimum ESR of 0.1Ω. Use polymer or tantalum capacitors in parallel with ceramics, and place a 10µF ceramic cap within 5mm of the output pin to handle high-frequency transients.
Is the TL2575HV-15IKV suitable for battery-powered applications where input voltage may drop below 6
The TL2575HV-15IKV requires a minimum input of 4.75V, but true dropout occurs around 17V (VIN ≥ VOUT + 2V at 1A), making it unsuitable for low-voltage battery systems that dip below 18V (e.g., 12V lead-acid under load or 24V systems with sag). If your application uses a 12V battery that can fall to 10V, the TL2575HV-15IKV will lose regulation, causing output collapse and potential resets. For such cases, consider a buck-boost converter like the TPS63060 or a low-dropout alternative. If you must use the TL2575HV-15IKV, implement undervoltage lockout (UVLO) with a comparator to disable the load before VIN drops below 18V, preventing erratic behavior and protecting downstream electronics.
What are the key thermal design considerations when using the TL2575HV-15IKV in a high-ambient-tempe
The TL2575HV-15IKV has a junction-to-ambient thermal resistance of approximately 50°C/W in still air (TO-220-5 package), so at 1A output and a 48V input, power dissipation can exceed 4.8W—pushing junction temperatures beyond safe limits without proper heatsinking. In high-ambient environments (>50°C), you must use a finned heatsink with thermal resistance below 10°C/W and ensure minimal thermal interface resistance. Avoid relying solely on PCB copper; instead, bolt the device to a chassis-mounted heatsink. Monitor TJ using the formula TJ = TA + (PD × θJA), and derate output current if TA exceeds 70°C to prevent thermal shutdown or long-term reliability degradation.
Can the TL2575HV-15IKV safely replace a failed LM2575HV-15 in an existing 48V-to-15V industrial powe
Yes, the TL2575HV-15IKV is a direct functional and pin-compatible upgrade to the LM2575HV-15, with improved efficiency and tighter output regulation. However, verify your input capacitor ESR—TI recommends low-ESR aluminum electrolytic or tantalum types (e.g., Panasonic FR series, 100µF/63V). Also confirm your inductor meets the 100µH minimum with saturation current >1.5A (e.g., Bourns RLB9014-101KL). While dropout voltage is similar (~2V at 1A), the TL2575HV-15IKV has better line regulation, so minor output voltage drift under load transients may improve—no layout changes are typically needed, but revalidate stability if feedback compensation was marginal.
What failure modes should I anticipate if the TL2575HV-15IKV is operated near its 60V input maximum
Operating the TL2575HV-15IKV near 60V input risks catastrophic failure from voltage spikes exceeding the absolute maximum rating. In automotive (load dump) or telecom (ringing on long cables), transients can reach 80–100V. Without input protection, the internal power switch may avalanche or rupture. Mitigate this by adding a 68V TVS diode (e.g., SMAJ58A) close to the VIN pin and a 10Ω series resistor with a 100nF ceramic capacitor for snubbing. Also, ensure your input bulk capacitor (≥47µF) has a 75V+ rating. Continuous operation above 55V input accelerates electromigration and reduces MTBF—consider a pre-regulator or switching to a higher-voltage alternative like the LM5007 if transients are frequent.
How do I ensure stable operation of the TL2575HV-15IKV when powering a digital load with high inrush
Large output capacitance (>1000µF) can destabilize the TL2575HV-15IKV due to reduced phase margin, potentially causing oscillations or subharmonic ringing. To maintain stability, add a small series resistor (0.1–0.5Ω, 1W) between the regulator output and the bulk capacitor bank to increase ESR and dampen LC resonance. Alternatively, use a feedforward capacitor (10–100nF) across the upper feedback resistor (if using adjustable version)—but since the TL2575HV-15IKV is fixed 15V, rely on output capacitor selection: TI recommends a minimum ESR of 0.1Ω. Use polymer or tantalum capacitors in parallel with ceramics, and place a 10µF ceramic cap within 5mm of the output pin to handle high-frequency transients.
Is the TL2575HV-15IKV suitable for battery-powered applications where input voltage may drop below 6
The TL2575HV-15IKV requires a minimum input of 4.75V, but true dropout occurs around 17V (VIN ≥ VOUT + 2V at 1A), making it unsuitable for low-voltage battery systems that dip below 18V (e.g., 12V lead-acid under load or 24V systems with sag). If your application uses a 12V battery that can fall to 10V, the TL2575HV-15IKV will lose regulation, causing output collapse and potential resets. For such cases, consider a buck-boost converter like the TPS63060 or a low-dropout alternative. If you must use the TL2575HV-15IKV, implement undervoltage lockout (UVLO) with a comparator to disable the load before VIN drops below 18V, preventing erratic behavior and protecting downstream electronics.
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Sep 15 2026
