MAX5978ETJ+ Maxim Integrated Products, MAX5978ETJ+ Datasheet - Page 31

• 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

If a fault event occurs (digital UV warning/critical, digital
OV warning/critical, or digital overcurrent warning), the
fault is logged by setting a corresponding bit in registers
fault0, fault1, or fault2 (see Tables 46, 47, and 48).
Likewise, circuit-breaker shutdown events are logged in
register status0[7:0] (see Table 49).
Table 46. Undervoltage Status Register Format
Table 47. Overvoltage Status Register Format
Table 48. Overcurrent Warning Status Register Format
Table 49. Circuit-Breaker Event Logging Register Format
Description:
Register Title:
Register Address:
Description:
Register Title:
Register Address:
Description:
Register Title:
Register Address:
Description:
Register Title:
Register Address:
Bit 7
Bit 7
Bit 7
Bit 7
—
—
R
R
—
—
R
R
Current, Voltage Monitor, and 4 LED Drivers
Bit 6
0 to 16V, Hot-Swap Controller with 10-Bit
Bit 6
—
R
—
R
Bit 6
Bit 6
—
R
—
R
Overcurrent digital-compare status register (overcurrent warning event-detection status)
fault2
0x37
Overvoltage digital-compare status register (warning [0] and critical [4] overvoltage event-detection
status)
fault1
0x36
Unused
Circuit-breaker slow- and fast-trip event logging
status0
0x31
Bit 5
Undervoltage digital-compare status register (warning [0] and critical [4] undervoltage event-
detection status)
fault0
0x35
Bit 5
Unused
—
R/C
R
Unused
Bit 5
Bit 5
R/C
R
Fault Dependency
IFAULTS
Bit 4
Bit 4
R/C
—
ov2
R
Bit 4
Bit 4
R/C
uv1
R
Bit 3
Bit 3
Bit 3
—
—
R
Bit 3
R
—
R
—
R
IFAULTS indicates the overcurrent status from slow com-
parator. IFAULTF indicates overcurrent status from fast
comparator. The status of FAULT reflects the OR opera-
tion of IFAULTS and IFAULTF.
These fault register bits latch upon a fault condition, and
must be reset manually by restarting as described in the
Latched-Off Fault Management section.
Bit 2
—
Bit 2
R
Bit 2
Bit 2
—
R
—
—
R
R
Unused
Bit 1
Unused
Unused
Unused
R
Bit 1
R/C
Bit 1
Bit 1
R/C
R/C
IFAULTF
Bit 0
R
Bit 0
R/C
uv1
Bit 0
Bit 0
R/C
R/C
ov1
oi
VALUE
RESET
RESET
VALUE
VALUE
RESET
VALUE
RESET
0x00
0x00
0x00
0x00
—
—
—
—
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