参数资料
型号: MAX34441EVKIT#
厂商: Maxim Integrated Products
文件页数: 11/53页
文件大小: 0K
描述: KIT EVAL FOR MAX34441
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: 电源管理,电源监控器/跟踪器/序列发生器
已用 IC / 零件: MAX34441
已供物品:
PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
Pin Description (continued)
PIN
20
22
23
24
25
26
27
28
29
30
31
32
NAME
PWM3
REG18
PSEN3
PWM2
PSEN2
PWM1
PSEN1
PWM0
REG25
PSEN0
SDA
SCL
FUNCTION
PWM Margin Output #3. High impedance when the margining is disabled. A 100% duty cycle implies
this pin is continuously high.
Regulator for Low-Voltage Digital Circuitry. Bypass REG18 to V SS with 1 F F and 10nF capacitors. Do
not connect other circuitry to this pin.
Power-Supply Enable Output #3. Programmable through MFR_MODE for either active high or active
low and either open drain or CMOS push-pull.
PWM Margin Output #2. High impedance when the margining is disabled. A 100% duty cycle implies
this pin is continuously high.
Power-Supply Enable Output #2. Programmable through MFR_MODE for either active high or active
low and either open drain or CMOS push-pull.
PWM Margin Output #1. High impedance when the margining is disabled. A 100% duty cycle implies
this pin is continuously high.
Power-Supply Enable Output #1. Programmable through MFR_MODE for either active high or active
low and either open drain or CMOS push-pull.
PWM Margin Output #0. High impedance when the margining is disabled. A 100% duty cycle implies
this pin is continuously high.
Regulator for Analog Circuitry. Bypass REG25 to V SS with 1 F F and 10nF capacitors. Do not connect
other circuitry to this pin.
Power-Supply Enable Output #0. Programmable through MFR_MODE for either active high or active
low and either open drain or CMOS push-pull.
I 2 C/SMBus-Compatible Input/Output
I 2 C/SMBus-Compatible Clock Input
SMBus Address 0 Input/Multiplexer Control Output. This dual-function pin is sampled on device
power-up to determine the SMBus address; connect a 100k I resistor from this pin to either V SS or
33
A0/MUXSEL V DD to set the address. After device power-up, this pin becomes an output that acts as voltage/
current selector for an external analog multiplexer. MUXSEL is low for voltage measurements and
high for current measurements.
Active-Low, Open-Drain Fault Input/Output. This pin is asserted when one or more of the power supplies
in a global group are shut down due to a fault condition. Also, this pin is monitored and, when it is
34
35
37
38
39
40
FAULT
CONTROL
A1/PG/
TACHSEL
ALERT
RS-5
RS+5
EP
asserted, all power supplies in a global group are shut down. This pin is used to provide hardware
control for power supplies in a global group across multiple devices. This output is unconditionally
deasserted when RST is asserted or the device is power cycled. This pin has a 50 F s deglitch filter.
Device Enable. Option through ON_OFF_CONFIG for active-low or active-high power-supply control.
This pin has a 50 F s deglitch filter.
SMBus Address 1 Input/Power-Good Output. This triple-function pin is sampled on device power-
up to determine the SMBus address; connect a 100k I resistor from this pin to either V SS or V DD to
set the address. After device power-up, this pin becomes an output that transitions high when all
the enabled power supplies are above their associated POWER_GOOD_ON thresholds. Alternately,
this pin can be programmed through MFR_MODE to select between two tachometers in dual-fan
applications.
Active-Low, Open-Drain Alert Output
Thermal Diode ADC Voltage Negative-Sense Input, Measurement Relative to RS+5
Thermal Diode ADC Voltage Positive-Sense Input, Measurement Relative to RS-5
Exposed Pad (Bottom Side of Package). Connect EP to V SS .
Note: All pins except V DD , V SS , REG18, REG25, ADC, and the EP are high impedance with a 50μA pullup during device power-up
and reset. After device reset, the weak pullup is removed, and the pin is configured as input or output.
11
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