MAX5970ETX+ Maxim Integrated Products, MAX5970ETX+ Datasheet - Page 21

• 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

0V to 16V, Dual Hot-Swap Controller with 10-Bit
Once the PG_ output is asserted, the most recent cur-
rent samples are continuously compared to the pro-
grammable overcurrent warning register values. If the
measured current value exceeds the warning level, the
ALERT output is asserted. The MAX5970 response to
this digital comparator is not altered by the setting of the
PROT input (Tables 11 and 12).
All current measurement values from the ADC are
continuously compared with the contents of minimum-
Table 11. Overcurrent Warning Threshold Register Format (High-Order Bits)
Table 12. Overcurrent Warning Threshold Register Format (Low-Order Bits)
Table 13. ADC Minimum Current Conversion Register Format (High-Order Bits)
Description:
Register Title:
Register Addresses:
Description:
Register Title:
Register Addresses:
Description:
Register Title:
Register Addresses:
Current and Voltage Monitor and 4 LED Drivers
imin_9
bit 7
bit 7
bit 7
R/W
oi_9
R
R
Detection for Current Measurement Values
imin_8
______________________________________________________________________________________
bit 6
bit 6
bit 6
R/W
oi_8
R
R
Minimum and Maximum Value
Overcurrent warning threshold low-order bits [1:0]
oi_ch0_ lsb
0x23
Overcurrent warning threshold high-order bits [9:2]
oi_ch0_msb
0x22
Minimum current conversion result high-order bits [9:2]
min_ch0_cs_msb
0x08
imin_7
bit 5
bit 5
bit 5
R/W
oi_7
R
R
imin_6
bit 4
bit 4
bit 4
R/W
oi_6
R
R
oi_ch1_lsb
0x2D
oi_ch1_msb
0x2C
min_ch1_cs_msb
0x10
imin_5
bit 3
bit 3
bit 3
R/W
oi_5
R
R
and maximum-value registers, and if the most recent
measurement exceeds the stored maximum or is less
than the stored minimum, the corresponding register
is updated with the new value. These peak detection
registers are read accessible through the I
(Tables 13–16). The minimum-value registers are reset
to 0x3FF, and the maximum-value registers are reset
to 0x000. These reset values are loaded upon startup
of a channel or at any time as commanded by register
peak_log_rst (Table 36).
imin_4
bit 2
bit 2
bit 2
R/W
oi_4
R
R
imin_3
bit 1
bit 1
R/W
oi_1
bit 1
R/W
oi_3
R
imin_2
bit 0
bit 0
R/W
oi_0
bit 0
R/W
oi_2
R
2
C interface
VALUE
VALUE
RESET
VALUE
RESET
RESET
0x03
0xFF
0xFF
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