MAX5970ETX+ Maxim Integrated Products, MAX5970ETX+ Datasheet - Page 20

• Manufacturer Part Number: MAX5970ETX+
• Description: IC CTLR HOT-SWAP DUAL 36TQFN
• Manufacturer: Maxim Integrated Products
• Type: Hot-Swap Controllerr

Specifications of MAX5970ETX+

• Applications: General Purpose, PCI Express
• Internal Switch(s): No
• Voltage - Supply: 2.7 V ~ 16 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The two current-sense signals are sampled by the inter-
nal 10-bit 10ksps ADC, and the most recent results are
stored in registers for retrieval through the I
The current conversion values are 10 bits wide, with the
eight high-order bits written to one 8-bit register and the
0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
Table 8. dac_chx Register Format
Table 9. ADC Current Conversion Results Register Format (High-Order Bits)
Table 10. ADC Current Conversion Results Register Format (Low-Order Bits)
20
Description:
Register Title:
Register Addresses:
Description:
Register Title:
Register Addresses:
Description:
Register Title:
Register Addresses:
DAC[7]
inew_9
_____________________________________________________________________________________
bit 7
bit 7
bit 7
R/W
R
R
DAC[6]
inew_8
bit 6
bit 6
bit 6
R/W
R
R
Digital Current Monitoring
Fast-comparator threshold DAC setting
dac_ch0
0x2E
Most recent current conversion result, high-order bits [9:2]
adc_ch0_cs_msb
0x00
Most recent current conversion result, low-order bits [0:1]
adc_ch0_cs_ lsb
0x01
DAC[5]
inew_7
bit 5
bit 5
bit 5
R/W
R
R
2
DAC[4]
inew_6
C interface.
bit 4
bit 4
R/W
bit 4
R
R
dac_ch1
0x2F
adc_ch1_cs_msb
0x04
adc_ch1_cs_lsb
0x05
DAC[3]
inew_5
bit 3
bit 3
bit 3
R/W
R
R
two low-order bits written to the next higher 8-bit register
address (Tables 9 and 10). This allows use of just the
high-order byte in applications where 10-bit precision is
not required. This split 8-bit/2-bit storage scheme is used
throughout the MAX5970 for all 10-bit ADC conversion
results and 10-bit digital comparator thresholds.
DAC[2]
inew_4
R/W
bit 2
bit 2
bit 2
R
R
DAC[1]
inew_3
inew_1
bit 1
bit 1
bit 1
R/W
R
R
inew_2
inew_0
DAC[0]
bit 0
bit 0
bit 0
R/W
R
R
VALUE
VALUE
RESET
RESET
VALUE
RESET
0x00
0x00
0xBF