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Texas Instruments UCD3138064A | Demoboard PMP20587
Highly Integrated Digital Controller for Isolated Power
Overview
| Topology | Buck-Boost Converter |
| Input voltage | -36 - -62 V |
| Switching frequency | 2000 kHz |
| Output 1 | 48 V / 12.5 A |
| IC revision | D |
Description
This reference design uses UCD3138064A as a digital controller to control two-phase two-rail inverting buck-boost. This non-isolated converter is used for wireless radio power. The input voltage is from -35 V to -60 V. There are two outputs. The default output voltage of rail 1 is 32 V and max current is 8.5 A; the default output voltage of rail 2 is 48 V and max current is 5.5 A. The output voltage is adjustable from 30 V to 56 V. With some component changes and firmware changes, the hardware can be used for current mode control or transition mode control to increase power and improve load transient. Test results of three controls are provided respectively.
Features
- Inverting buck boost for -48-V to 48-V system
- Transient response with less than +/- 3% -overshoot/undershoot voltage
Typical applications
- Merchant DC/DC
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (nH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | LR (nH) | IR (A) | RDC (mΩ) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744308040 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN 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-HCM SMT High Current Flat Wire Inductor | 400 | 54.3 | 23.8 | 28.3 | 0.396 | 25 | 345 | 25 | 0.37 | MnZn | ||
 | 7443642200 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCF SMT High Current Inductor | 22000 | 34.95 | 15.5 | 18 | 2.64 | 9 | 5000 | 35 | 2.4 | MnZn |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744308040 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 7443642200 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (nH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | LR (nH) | IR (A) | RDC (mΩ) | Material | Samples |
|---|