Datasheet

LTC2974
14
2974fc
For more information www.linear.com/LTC2974
PIN NAME PIN NUMBER PIN TYPE DESCRIPTION
T
SENSE3
34* In/Out External Temperature Current Output and Voltage Input for Channel 3. Maximum allowed capacitance
is 1µF
ASEL0 35 In Ternary Address Select Pin 0 Input. Connect to V
DD33
, GND or Float to Encode 1 of 3 Logic States
ASEL1 36 In Ternary Address Select Pin 1 Input. Connect to V
DD33
, GND or Float to Encode 1 of 3 Logic States
GND 37 Ground Chip Ground. Must Be Soldered to PCB
REFP 38 Out Reference Voltage Output. Needs 0.1µF Decoupling Capacitor to REFM
GND 39 Ground Chip Ground. Must Be Soldered to PCB
REFM 40 Out Reference Return Pin. Needs 0.1µF Decoupling Capacitor to REFP
I
SENSEP0
41* In DC/DC Converter Differential (+) Output Current-0 Sensing Pin
I
SENSEM0
42* In DC/DC Converter Differential (–) Output Current-0 Sensing Pin
I
SENSEP1
43* In DC/DC Converter Differential (+) Output Current-1 Sensing Pin
I
SENSEM1
44* In DC/DC Converter Differential (–) Output Current-1 Sensing Pin
I
SENSEP2
45* In DC/DC Converter Differential (+) Output Current-2 Sensing Pin
I
SENSEM2
46* In DC/DC Converter Differential (–) Output Current-2 Sensing Pin
I
SENSEP3
47* In DC/DC Converter Differential (+) Output Current-3 Sensing Pin
I
SENSEM3
48* In DC/DC Converter Differential (–) Output Current-3 Sensing Pin
V
SENSEP3
49* In DC/DC Converter Differential (+) Output Voltage-3 Sensing Pin
V
SENSEM3
50* In DC/DC Converter Differential (–) Output Voltage-3 Sensing Pin
NC 51 No Connect No Connect
NC 52 No Connect No Connect
V
DAC0
53 Out DAC0 Output
V
DAC1
54 Out DAC1 Output
NC 55 No Connect No Connect
NC 56 No Connect No Connect
V
DAC2
57 Out DAC2 Output
V
DAC3
58 Out DAC3 Output
NC 59 No Connect No Connect
NC 60 No Connect No Connect
V
SENSEP2
61* In DC/DC Converter Differential (+) Output Voltage-2 Sensing Pin
V
SENSEM2
62* In DC/DC Converter Differential (–) Output Voltage-2 Sensing Pin
V
SENSEP1
63* In DC/DC Converter Differential (+) Output Voltage-1 Sensing Pin
V
SENSEM1
64* In DC/DC Converter Differential (–) Output Voltage-1 Sensing Pin
GND 65 Ground Exposed Pad. Must Be Soldered to PCB
*Any unused V
SENSEPn
/I
SENSEPn
, V
SENSEMn
/I
SENSEMn
or T
SENSEn
pins should be tied to GND.
pin FuncTions