MAX5978ETJ+ Maxim Integrated Products, MAX5978ETJ+ Datasheet - Page 27

• Manufacturer Part Number: MAX5978ETJ+
• Description: Hot Swap & Power Distribution 0-16V HOTSWAP CONTLR W/10BIT CUR VOLT MON
• Manufacturer: Maxim Integrated Products

Specifications of MAX5978ETJ+

• Product: Controllers & Switches
• Supply Voltage (max): 16 V
• Supply Voltage (min): 0 V
• Power Dissipation: 2759 mW
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Supply Current: 2.5 mA
• Package / Case: TQFN-32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The voltage and current minimum- and maximum-value
records in register locations 0x08 through 0x17 can be
reset by writing a 1 to the appropriate location in register
peak_log_rst (see Table 35). The minimum-value regis-
ters are reset to 0xFF, and the maximum-value registers
are reset to 0x000.
As long as a bit in peak_log_rst is 1, the corresponding
peak-detection registers are disabled and are “cleared”
to their power-up reset values. The voltage and current
Table 35. Peak-Detection Reset-Control Register Format
Table 36. Peak-Detection Hold-Control Register Format
Description:
Register Title:
Register Address:
Description:
Register Title:
Register Address:
Bit 7
Bit 7
—
—
R
R
Current, Voltage Monitor, and 4 LED Drivers
Using the Voltage and Current Peak-
0 to 16V, Hot-Swap Controller with 10-Bit
Bit 6
Bit 6
—
—
R
R
Reset control bits for peak-detection registers
peak_log_rst
0x41
Hold control bits for peak-detection registers
peak_log_hold
0x42
Bit 5
Bit 5
Detection Registers
—
—
R
R
Bit 4
Bit 4
—
—
R
R
Unused
Unused
Bit 3
R/W
R/W
Bit 3
minimum- and maximum-detection register contents can
be “held” by setting bits in register peak_log_hold (see
Table 36). Writing a 1 to a location in peak_log_hold
locks the register contents for the corresponding signal
and stops the min/max detection and logging; writing a
0 enables the detection and logging. Note that the peak-
detection registers cannot be cleared while they are held
by register peak_log_hold.
The combination of these two control registers allows the
user to monitor voltage and current peak-to-peak values
during a particular time period.
Unused
Unused
R/W
Bit 2
Bit 2
R/W
Ch0_v_hld
v_rst
R/W
Bit 1
R/W
Bit 1
R/W
Bit 0
Ch0_i_hld
i_rst
Bit 0
R/W
VALUE
RESET
0x00
RESET
VALUE
—
0x00
—
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