MAX34441ETL+ Maxim Integrated Products, MAX34441ETL+ Datasheet - Page 26

• Manufacturer Part Number: MAX34441ETL+
• Description: Supervisory Circuits PMBUS 5-CH POW-SUPPLY MANAGER & INTELLIGENT FAN CONTLR
• Manufacturer: Maxim Integrated Products

Specifications of MAX34441ETL+

• Internal Hysteresis: Yes
• Operating Temperature Range: - 40 C to + 85 C
• Output Type: Push-Pull
• Number Of Voltages Monitored: 5
• Watchdog: Yes
• Supply Voltage (max): 3.3 V
• Supply Current (typ): 8 A
• Maximum Power Dissipation: 2857.1 mW
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Package / Case: TQFN-40
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A summary of the PMBus commands supported by the device are described in the following sections.
The device can control up to five power supplies, up to six temperature sensors, and a fan using one PMBus (I
address. Send the PAGE command with data 0 to 11 to select which power supply or which temperature sensor or
fan is affected by all the PMBus commands shown in Table 1. Not all commands are supported within each page. If
an unsupported command is received, the CML status bit is set. Some commands are common, meaning that any
selected page has the same effect on and the same response from the device.
Set the PAGE to 255 when it is desired that the following PMBus commands should apply to all pages at the same time.
There are only a few commands (OPERATION, CLEAR_FAULTS) where this function has a real application.
Table 8. Page Commands
PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
26
PAGE (DEC)
12 to 254
255
10
11
0
1
2
3
4
5
6
7
8
9
Power Supply Connected to ADC 0
Power Supply Connected to ADC 1
Power Supply Connected to ADC 2
Power Supply Connected to ADC 3
Power Supply Connected to ADC 4
Fan Connected to PWM 5
Internal Temperature Sensor
Remote I
Remote I
Remote I
Remote I
Remote Thermal-Diode Sensor
Reserved
Applies to All Pages
2
2
2
2
C Temperature Sensor with Address 0
C Temperature Sensor with Address 1
C Temperature Sensor with Address 2
C Temperature Sensor with Address 3
ASSOCIATED CONTROL
PMBus Commands
PAGE (00h)
2
C)