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IC manufacturers (96)

Analog Devices LTC2971 | Demoboard DC2875A

High Voltage Two 2-Channel PMBus Power System Managers with Four Power Supply Rails

Overview

TopologyBuck Converter
Input voltage4.5-60 V
Output 10.3 V
Output 20.4 V
Output 30.3 V
Output 40.4 V

Description

The DC2875A is a demonstration system for the LTC2971 Power System Manager that interfaces to various regulators. The board contains all the circuitry needed to demonstrate a power system that utilizes two 2-channel LTC2971 devices that manage four power supplies. The four power supplies include various switching regulators for the purpose of demonstrating a variety of methods to sense voltage and current. The demo board provides a sophisticated 4-channel digitally programmable power supply system.The LTC2971 is a 2-channel I2C/SMBus/PMBus Power System Manager that features accurate input current and energy measurement and is capable of managing ±60V supplies. The device monitors input current and input voltage, and calculates input power and energy. The DC2875A demonstrates the ability of the LTC2971 to sequence, trim, margin, supervise, monitor, and log faults for four power supplies. The LTC2971 monitors each channel’s output voltage and output current and also monitors each channel’s external temperature sensor and its own internal die temperature.The DC2875A board contains four independent power supply rails. All four rails are based on DC/DC switching regulators. The +36V and +32V channels are managed by an LTC2971 and the ±24V channels are managed by an LTC2971-1. The board is pre-configured with these voltages and may be re-configured with feedback resistors.

Features

  • Sequence, Trim, Margin, and Supervise Four Power Supplies
  • Manage Faults, Monitor Telemetry, Create Fault Logs
  • PMBus Compliant Command Set
  • Supported by LTpowerPlay GUI
  • Margin or Trim Supplies to 0.25% Accuracy
  • Four IOUT and Two IIN Monitors
  • Input Power Measurement and Energy Accumulation
  • Fast OV/UV Supervisors per Channel
  • Multi-Channel Fault Management
  • Automatic Fault Logging to Internal EEPROM
  • Operates Autonomously without Additional Software
  • Monitors: Voltage, Current, Power, Temperature
  • 2-Channel Time-Based Output Sequencer
  • I2C/SMBus Serial Interface
  • Powered from 8V to 18V

Products

Order Code Data­sheet Simu­lation Downloads Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
L
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
V
(V)
MountISAT
(A)
RDC max.
(mΩ)
VersionISAT,10%
(A)
L1
(µH)
L2
(µH)
IR
(A)
IR 2
(A)
ISAT
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres
(MHz)
TypePinsRowsH
(mm)
GenderIR
(A)
Packaging Samples
150060BS75000SPEC
25 files WL-SMCW SMT Mono-color Chip LED Waterclear 470 Blue 465 145 3.2 InGaN 140 0603 -40 °C up to +85 °C 1.6 0.8 SMT 0.7 Tape and Reel
150060GS75000SPEC
25 files WL-SMCW SMT Mono-color Chip LED Waterclear 525 Green 515 430 3.2 InGaN 140 0603 -40 °C up to +85 °C 1.6 0.8 SMT 0.7 Tape and Reel
150060SS75000SPEC
25 files WL-SMCW SMT Mono-color Chip LED Waterclear 630 Super Red 645 60 1.9 AlInGaP 140 0603 -40 °C up to +85 °C 1.6 0.8 SMT 0.7 Tape and Reel
744777147SPEC
8 files WE-PD SMT Power Inductor 7345 -40 °C up to +125 °C 7.3 7.3 47 1.8 1.1 260 Standard 4.5 1.03
7447785133SPEC
8 files WE-PD SMT Power Inductor 6033 -40 °C up to +125 °C 5.9 6.2 33 1.05 0.9 400 Robust 3.3
74438335330SPEC
9 files WE-MAPI SMT Power Inductor 3015 -40 °C up to +125 °C 3 3 33 0.7 1.7 1210 80 SMT 1.3 1330 SMT 0.9 10 2 1.5 0.5
74437368330SPEC
8 files WE-LHMI SMT Power Inductor 1040 -40 °C up to +125 °C 11 10 33 3.75 7.4 SMT 112 SMT 3.3 6 3.8
744877101SPEC
8 files WE-DD SMT Shielded Coupled Inductor 7345 -40 °C up to +125 °C 7.3 7.3 100 0.9 1300 100 100 0.65 0.65 0.9 1.029 1.029 1.3 1.3 4 4.8 0.65
885012106012SPEC
8 files WCAP-CSGP MLCCs 10 V(DC)4.7 µF ±20% 10 0603 -55 °C up to +85 °C 100.02 GΩ X5R Class II 1.6 0.8 0.4 0.8 7" Tape & Reel
60800213421SPEC
3 files WR-PHD 2.00 mm Jumper with Test Point -25 °C up to +105 °C1000 MΩ 2 Jumper 3 Bag
62000311121SPEC
6 files WR-PHD 2.00 mm THT Pin Header -40 °C up to +105 °C1000 MΩ 6 THT Straight 3 Single Pin Header 2 Bag
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
L
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
V
(V)
MountISAT
(A)
RDC max.
(mΩ)
VersionISAT,10%
(A)
L1
(µH)
L2
(µH)
IR
(A)
IR 2
(A)
ISAT
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres
(MHz)
TypePinsRowsH
(mm)
GenderIR
(A)
Packaging Samples