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Texas Instruments TPS40170 | Demoboard PMP6867
9V - 32V input to -28V/1.5A negative output buck-boost LED current regulator
Overview
| Topology | Buck-Boost Converter |
| Input voltage | 9-32 V |
| Output 1 | -28 V / 1.5 A |
| IC revision | C |
Description
This reference design uses the TPS40170 sync buck controller in a buck-boost converter to regulate the current in a series string of 6 to 8 LEDs (-28V) at up to 1.5A. Efficiency is greater than 93%. The output current can be adjusted with an external control voltage.
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74435573300 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 33 | 8.7 | 8 | 9 | 21.7 | 9.5 | MnZn |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74435573300 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples |
|---|