Datasheet

Configuration

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5.1 Current Limit Trip Selection (J8: Trip Select)

The overcurrent protection (OCP) can be set by J8 Trip Select (TRIPSEL).

Default setting is 29A.

Table 2. Current Limit Trip Selection

Jumper Set to TRIPSEL OCP Limit per Phase(Typ.)

Top (1-2 pin shorted) 5VFILT 29A

Second (3-4 pin shorted) 3.3VBIAS 24A

Third (5-6 pin shorted) VREF 20A

Bottom(7-8 pin shorted) GND 17A

5.2 Frequency Selection (J7: TON Select)

The operating frequency can be set by J7 TON Select (TONSEL).

Default setting is 300 kHz.

Table 3. Frequency Selection

Jumper Set to TONSEL Frequency (kHz)

Top (1-2 pin shorted) 5VFILT 500

Second (3-4 pin shorted) 3.3VBIAS 350

Third (5-6 pin shorted) VREF 300

Bottom(7-8 pin shorted) GND 250

5.3 Overshoot Reduction Selection (J9: OSRTM Select)

The overshoot reduction can be set by J9 OSRTM Select (OSRSEL).

Default setting is Maximum.

Table 4. Overshoot Reduction Selection

Jumper set to OSR Overshoot Voltage Reduction

Top (1-2 pin shorted) 5VFILT OFF

Second (3-4 pin shorted) 3.3VBIAS Minimum

Third (5-6 pin shorted) VREF Medium

Bottom (7-8 pin shorted) GND Maximum

5.4 VID Bits Selection(S1)

The output voltage can be set by Switch S1 (VID Bits).

Default setting is 000.

Table 5. VID Bits Selection

3-Bit VID Table (1 = 1VBIAS, 0 = GND)

VID2 VID1 VID0 Vout (V)

0 0 0 1.05

0 0 1 1.00

0 1 0 0.95

0 1 1 0.90

1 0 0 0.85

1 0 1 0.80

1 1 0 0.75

Using the TPS51513EVM-549 A Single-Phase, D-CAP+™ Synchronous Buck SLVU358–February 2010

Controller With Integrated Drivers for General IC V

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