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LTC2970

Features: ` Less Than ±0.5% Total Unadjusted Error 14-Bit ADC with On-Chip Reference` Dual, 8-Bit IDACs with 1x Voltage Buffers` Linear, Voltage Servo Adjusts Supply Voltages by Ramping IDAC Outputs Up/Down` I2C™ Bus Interface (SMBus Compatible)` Extensive, User Confi gurable Fault Monitori...

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SeekIC No. : 004402162 Detail

LTC2970: Features: ` Less Than ±0.5% Total Unadjusted Error 14-Bit ADC with On-Chip Reference` Dual, 8-Bit IDACs with 1x Voltage Buffers` Linear, Voltage Servo Adjusts Supply Voltages by Ramping IDAC Output...

LTC2970 Data Sheet

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Part Number:
LTC2970
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Less Than ±0.5% Total Unadjusted Error 14-Bit ADC with On-Chip Reference
` Dual, 8-Bit IDACs with 1x Voltage Buffers
` Linear, Voltage Servo Adjusts Supply Voltages by Ramping IDAC Outputs Up/Down
` I2C™ Bus Interface (SMBus Compatible)
` Extensive, User Confi gurable Fault Monitoring
` On-Chip Temperature Sensor
` Available in 24-Lead 4mm * 5mm QFN Package


Application

· Dual Power Supply Voltage Servo
· Monitoring Supply Voltage and Current
·Programmable Power Supplies
· Programmable Reference


Pinout

Connection Diagram


Specifications

Supply Voltages:
VDD ......................................................... 0.3V to 6V
12VIN .................................................... 0.3V to 15V
Digital Input/Output Voltages:
ASEL0, ASEL1 ............................ 0.3V to VDD + 0.3V
SDA, SCL, GPIO_CFG,
ALERT, GPIO_0, GPIO_1 .......................... 0.3V to 6V
Analog Voltages:
V IN0_AP, V IN0_AM, V IN0_BP,
V IN0_BM, V IN1_AP, V IN1_AM,
V IN1_BP, V IN1_BM, V OUT0, V OUT1 .......... 0.3V to 6V
I OUT0, I OUT1, REF ..................... 0.3V to VDD + 0.3V
RGND .................................................... 0.3V to 0.3V
Operating Temperature Range:
LTC2970C .............................................. 0°C to 70°C
LTC2970I ........................................... 40°C to 85°C
Storage Temperature Range ............65°C to 125°C
Lead Temperature (Soldering, 10 sec) .............. 300°C


Description

The LTC®2970 is a dual power supply monitor and margining controller with an SMBus compatible I2C bus interface. A low-drift, on-chip reference and 14-bit A/D converter allow precise measurements of supply voltages, load currents or internal die temperature. Fault management allows ALERT to be asserted for confi gurable over and under voltage fault conditions. Two voltage buffered, 8-bit IDACs allow highly accurate programming of DC/DC converter output voltages. The IDACs can be confi gured to automatically servo the power supplies to the desired voltages using the ADC. The LTC2970-1 adds a tracking feature that can be used to turn multiple power supplies on or off in a controlled manner.

The bus address is set to 1 of 9 possible combinations by pin strapping the ASEL0 and ASEL1 pins. The LTC2970/ LTC2970-1 are packaged in the 24-lead, 4mm * 5mm QFN package.




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