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Texas Instruments TPS92515HV | Demoboard TIDA-01081
LED-Lighting Control Reference Design for Machine Vision
Overview
| Topology | Buck Converter |
| Input voltage | 38-49 V |
| Switching frequency | 50-2000 kHz |
| Output 1 | 24 V / 2.4 A |
| IC revision | E2 |
Description
The TPS92515 family of devices are compact monolithic switching regulators integrating a low resistance N-Channel MOSFET. The devices are intended for high-brightness LED lighting applications where efficiency, high bandwidth, PWM and/or analog dimming and small size are important.The regulator operates using a constant off-time, peak current control. The operation is simple: after an off-time based on the output voltage, an on-time begins. The on-time ends once the inductor peak current threshold is reached. The TPS92515 device can be configured to maintain a constant peak-to-peak ripple during the ON and OFF periods of a shunt FET dimming cycle. This is ideal for maintaining a linear response across the entire shunt FET dimming range.Steady-state accuracy is aided by the inclusion of a low-offset, high-side comparator. LED current can be modulated using either Analog or PWM dimming, or both simultaneously. Other features include UVLO, wide input voltage operation, inherent LED Open operation and wide operating temperature range with thermal shut-down.The TPS92515 and TPS92515-Q1 devices have an operational input range up to 42 V. The TPS92515HV and TPS92515HV-Q1 offer high-voltage options with an input range up to 65 V. All are available in a thermally enhanced 10-pin HVSSOP package.
Features
AEC-Q100 Grade 1 QualifiedIntegrated 290-mΩ (typ) Internal N-Channel FETInput Voltage Range:TPS92515x: 5.5 V to 42 VTPS92515HVx: 5.5 V to 65 VOperation Down to 5.15 V After Start-UpLow Offset High-side Peak Current ComparatorConstant Average Current, up to 2 AInherent Cycle-by-Cycle Current LimitMultiple Dimming Methods10,000:1 Shunt PWM Dimming Range1000:1 PWM Dimming Range200:1 Analog Dimming RangeSimple Constant Off-time ControlNo Loop CompensationFast Transient ResponseThermally Enhanced HVSSOP PackageIntegrated Thermal Protection
Typical applications
- Industrial Power Supplies
- General Purpose Wide Vin Regulation
- Automotive Battery Regulation
- Telecom and Datacom Systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | fres(MHz) | Mount | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(mΩ) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Power Inductor, 100 µH, 3.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance100 µH | Performance Rated Current3.2 A | Saturation Current @ 10%3.45 A | Saturation Current @ 30%6.8 A | Self Resonant Frequency2.4 MHz | MountSMT | – | – | – | – | DC Resistance165 mΩ | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | MountSMT | Impedance @ 100 MHz10 Ω | Maximum Impedance20 Ω | Maximum Impedance1000 MHz | Rated Current 23000 mA | DC Resistance25 mΩ | TypeHigh Current | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | MountSMT | Impedance @ 100 MHz60 Ω | Maximum Impedance120 Ω | Maximum Impedance1000 MHz | Rated Current 26000 mA | DC Resistance10 mΩ | TypeHigh Current |