MP2935 datasheet(39/42 Pages) MPS

39 / 42 page

MP2935 — 4-PHASE PWM CONTROLLER FOR VR12.5 APPLICATIONS

MP2935 Rev. 1.02

www.MonolithicPower.com

8/25/2015

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

VID code is within 10mV or 1 VID step from the

target voltage. DVID is the enable signal of

VRSETTLE comparator. The sensed output

voltage is compared to the DAC output to

determine VRSETTLE signal when the DVID is

asserted.

SVID Address

To support multiple MP2935 used on the same

SVID bus, use the ADDR pin to program the

SVID address for each MP2935. There is a 10μA

current on the ADDR pin; connect a resistor from

ADDR pin to ground to set the ADDR voltage.

The internal ADC converts the pin voltage to set

the SVID address. Table 6 shows the SVID

address for different resistor values from ADDR

pin to ground.

Address 0xE and 0xF are reserved as an “All

Call” address used for the CPU to communicate

with all slave devices on the bus.

Table 6: SVID Address vs ADDR Resistor

RADDR (kΩ)

Address (HEX)

0x0

11.8

0x1

19.6

0x2

0x3

35.7

0x4

44.2

0x5

51.1

0x6

0x7

68.1

0x8

80.6

0x9

88.7

0xA

95.3

0xB

105

0xC

133

0xD

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