- Joined
- Dec 27, 2011
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- 48
Tom,
Never mind, let me guess - not constant current?
What about this driver? It does not say it is an LED driver but the specs are interesting.
DC/DC Converter (Integrated Switch) - Step-Up Regulator - TPS61087 - TI.com
3mm x 3mm
• 2.5 V to 6 V Input Voltage Range
• 18.5 V Boost Converter With 3.2 A Switch Current
• 650 kHz/1.2 MHz Selectable Switching Frequency
• Adjustable Soft-Start
• Thermal Shutdown
• Undervoltage Lockout
• 10-Pin QFN and thin QFN Packages
The TPS61087 is a high frequency, high efficiency DC to DC converter with an integrated 3.2 A, 0.13 Ω power switch capable of providing an output voltage up to 18.5 V. The selectable frequency of 650 kHz or 1.2 MHz allows the use of small external inductors and capacitors and provides fast transient response. The external compensation allows optimizing the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup.
http://www.ti.com/lit/ds/slvs821b/slvs821b.pdf
Never mind, let me guess - not constant current?
What about this driver? It does not say it is an LED driver but the specs are interesting.
DC/DC Converter (Integrated Switch) - Step-Up Regulator - TPS61087 - TI.com
3mm x 3mm
• 2.5 V to 6 V Input Voltage Range
• 18.5 V Boost Converter With 3.2 A Switch Current
• 650 kHz/1.2 MHz Selectable Switching Frequency
• Adjustable Soft-Start
• Thermal Shutdown
• Undervoltage Lockout
• 10-Pin QFN and thin QFN Packages
The TPS61087 is a high frequency, high efficiency DC to DC converter with an integrated 3.2 A, 0.13 Ω power switch capable of providing an output voltage up to 18.5 V. The selectable frequency of 650 kHz or 1.2 MHz allows the use of small external inductors and capacitors and provides fast transient response. The external compensation allows optimizing the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup.
http://www.ti.com/lit/ds/slvs821b/slvs821b.pdf
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