Clik here to view.
Charging a Li Pack with an Alkaline Pack and Switching Between Them
Hello everyone,There are several applications where it is preferable to use alkaline batteries. But since they have high internal resistance, I was wondering if it was possible to use the alkaline pack...
View ArticleLooking for a combination of LiPO charger, gauge and buck/boost
Hello,I am looking for a power management solution for my uC board that has a 3.7 V LiPo power supply. I need a 3.3 V output with a max current draw of 500 mA, and a battery gauge, as well as a USB...
View ArticleRecommended Gate Driver for digitally controlled Synchronous Buck NexFET...
Hello,I am designing a digitally controlled Synchronous Buck Converter. I have chosen CSD87352Q5D (NexFET Power Block) as the main and synchronous MOSFET. TMS320F28335 control card will be used as...
View ArticleReducing current sense resistor value in TPS62150 LED driver
Hi,We are using a TPS62150 in CC mode to drive a white LED.Specs:Vin: 2.8-12VLED: Vf 2.6-2.9V, 300ma - 1A maxSS/TR pin connected to DAC to adjust LED forward current.In Application Report SLVA451 page...
View ArticleTPS62150 SS/TR pin voltage for analog dimming
Hello,I am using a TPS62150 for driving a 1A led with analog dimming using SS/TR pin. The voltage applied to SS/TR is from 0 to 0.4V. This voltage is coming from a DAC 2.5V. A resistor divider 56K/10K...
View ArticleFor the TPS62177DQCR switching regulator, the 10uH inductor is difficult to...
For the TPS62177DQCR switching regulator, the LPS4012-103M 10uH inductor is difficult to source. Can you recommend a few other parts?I'd like something small and inexpensive.Please recommend a few...
View ArticleTPS62065 / Pspice transient model
Hi,I received the following question from my customer.Can the TPS62065 PSpice Transient Model use to simulate phase characteristics?Best Regards,Kuramochi
View ArticleTPS61165: Buck type LED driver with analog dimming by PWM input
Part Number:TPS61165 Hi guys, My customer is looking for a buck converter type LED driver IC like TPS61165 dimming method. TPS61165 boost LED driver with dimming control by output current changing. But...
View ArticleClik here to view.
Power your smart lock for five years on one set of batteries
Linear regulator, boost (step-up) or buck (step-down) – these are the three power-supply topologies for most smart locks. Which do you choose for your designs? Why does it matter?The success of any...
View ArticleClik here to view.
WEBENCH® Tools/TPS62180: WeBench Generated Duty Cycle greater than 100% on...
Part Number:TPS62180Tool/software: WEBENCH® Design ToolsDear WeBench Team,Our customer generated a new WeBench Design with the TPS62180 and get a duty cycle graph that was greater than 100%.   Please...
View ArticleDriver selection for OSRAM GF CS8PM1.24
Hi,what could be an appropriate driver for OSRAM's LED GF CS8PM1.24 the power source is LiIon battery.
View ArticleValidation on Non-Linear Voltage Regulators
Hi,Can someone provide any ideas of the best method to validate non-linear voltage regulators? Impedance profile and Bode-plot used in traditional validation are useless when non-linear voltage...
View ArticleNeed help selecting a DC-DC LED driver
Hi,We are using the TPS62150 in a constant current configuration to drive a white LED up to 1A. Would like to know if there is a more efficient part.Spec's:Vin 2.8V-12VVout 3.0V @ 1A maxThanks,Paul
View ArticleHow to build a 2.5A constant current?
I used to make some constant current supplies such as LM3407, LM3406 driver but all of them below 1.5A. Is there a TI's IC met 2.5A or combinable ICs helped me do this?I'm designing a Cree-XML2 Drivers...
View ArticleClik here to view.
Charging a Li Pack with an Alkaline Pack and Switching Between Them
Hello everyone,There are several applications where it is preferable to use alkaline batteries. But since they have high internal resistance, I was wondering if it was possible to use the alkaline pack...
View ArticleLooking for a combination of LiPO charger, gauge and buck/boost
Hello,I am looking for a power management solution for my uC board that has a 3.7 V LiPo power supply. I need a 3.3 V output with a max current draw of 500 mA, and a battery gauge, as well as a USB...
View ArticleRecommended Gate Driver for digitally controlled Synchronous Buck NexFET...
Hello,I am designing a digitally controlled Synchronous Buck Converter. I have chosen CSD87352Q5D (NexFET Power Block) as the main and synchronous MOSFET. TMS320F28335 control card will be used as...
View ArticleReducing current sense resistor value in TPS62150 LED driver
Hi,We are using a TPS62150 in CC mode to drive a white LED.Specs:Vin: 2.8-12VLED: Vf 2.6-2.9V, 300ma - 1A maxSS/TR pin connected to DAC to adjust LED forward current.In Application Report SLVA451 page...
View ArticleTPS62150 SS/TR pin voltage for analog dimming
Hello,I am using a TPS62150 for driving a 1A led with analog dimming using SS/TR pin. The voltage applied to SS/TR is from 0 to 0.4V. This voltage is coming from a DAC 2.5V. A resistor divider 56K/10K...
View ArticleFor the TPS62177DQCR switching regulator, the 10uH inductor is difficult to...
For the TPS62177DQCR switching regulator, the LPS4012-103M 10uH inductor is difficult to source. Can you recommend a few other parts?I'd like something small and inexpensive.Please recommend a few...
View Article