UCD9244_15 datasheet(10/39 Pages) TI1

Part #	UCD9244

Description	Digital PWM System Controller with 4-bit, 6-bit, or 8-bit VID Support

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Manufacturer	TI1 [Texas Instruments]

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UCD9244

SLVSAL6A

– NOVEMBER 2010 – REVISED FEBRUARY 2011

www.ti.com

Table 1. PIN FUNCTIONS (continued)

PIN LABEL

PIN DESCRIPTION

NUMBER

48

Agnd2

Analog ground

49

Agnd1

Analog ground

50

EAp1

Error analog, differential voltage, Positive channel 1 input

51

EAn1

Error analog, differential voltage, Negative channel 1 input

52

EAp2

Error analog, differential voltage, Positive channel 2 input

53

EAn2

Error analog, differential voltage, Negative channel 2 input

54

EAp3

Error analog, differential voltage, Positive channel 3 input

55

EAn3

Error analog, differential voltage, Negative channel 3 input

56

EAp4

Error analog, differential voltage, Positive channel 4 input

57

EAn4

Error analog, differential voltage, Negative channel 4 input

58

V33FB

Connection to the base of 3.3V linear regulator transistor (no connect if unused)

59

CS1A

Power stage 1A current sense input and input to analog comparator 1

60

Addr1

PMBus Address sense. Channel 1.

61

Addr0

PMBus Address sense. Channel 0.

62

Temp3/AuxADC3

Temperature sense input for Rail 3, or Auxiliary ADC input 3

63

Temp4/AuxADC4

Temperature sense input for Rail 4, or Auxiliary ADC input 4

64

Agnd3

Analog ground

PowerPad

It is recommended that this pad be connected to analog ground

10

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