Performance Summary; Glossary Of Terms - Linear Technology DC2028A Manual

DEMO MANUAL DC2028A

perFormAnce summAry

POWER SUPPLY CHANNEL
Manager/Controller
Nominal Untrimmed Output Voltages
Rated Output Current
Default Margin Range
Output Trim Range (V = 1.38V)
FS_VDAC
Temperature
Common Characteristics
PARAMETER
Supply Input Voltage Range
ADC Total Unadjusted Error
ADC Voltage Sensing Input Range

GLossAry oF terms

The following list contain terms used throughout the
document.
Channel – The collection of functions that monitor, su-
pervise, and trim a given power supply rail.
EEPROM – Non-volatile memory (NVM) storage used to
retain data after power is removed.
Margin – Term used typically in board level testing that
increases/decreases the output voltage to look for sensi-
tivity/marginality problems.
Monitor – The act of measuring voltage, current, and
temperature readings.
NVM – Non-volatile memory, see EEPROM.
2
Specifications are at T
CONDITIONS
V ≥ 1V
IN_ADC
Differential Voltage: V = (V
IN_ADC SENSEP[n]
= 25°C
A
Specifications Valid Over Full Operating Temperature Range
– V )
SENSEM[n]
PMBus – An industry standard power management proto-
col with a fully defined command language that facilitates
communication with power converters and other devices
in a power system.
Rail – The final output voltage that the power supply
controller manages.
Supervise – The act of quickly responding to a voltage,
current, temperature condition that is compared to pre-
programmed values (fault settings).
Trim – The act of adjusting the final output voltage. A servo
loop is typically used to trim the voltage.
CH(0:7)
LTC2977
1.2V, 1.5V, 1.8V, 2.0V,
2.5V, 2.7V, 3.0V, 3.3V
0.3A
±5%
+15%/–11%
1 Internal
MIN TYP MAX UNITS
6 14
±0.25
0 6
dc2028af
V
%
V