Pin description – Rainbow Electronics MAX16064 User Manual
Page 8
MAX16064
±0.3% Accurate, Quad, Power-Supply Controller with
Active-Voltage Output Control and PMBus Interface
8
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Pin Description
PIN
NAME
FUNCTION
1
RS2-
Differential Remote-Sense Input 2 Return of the DC-DC Output Voltage. Connect to the return terminal
at the load.
2
RS2+
Differential Remote-Sense Input 2 of DC-DC Output Voltage. Connect to the load terminal where the
output must be regulated.
3
RS3+
Differential Remote-Sense Input 3 of DC-DC Output Voltage. Connect to the load terminal where the
output must be regulated.
4
RS3-
Differential Remote-Sense Input 3 Return of the DC-DC Output Voltage. Connect to the return terminal
at the load.
5
RS3C
Filter Capacitor for V
SENSE
Amplifier 3. Connect a 1µF capacitor from RS3C to AGND.
6
EN
Enable Input. All ENOUT_ are deasserted when the voltage on EN is below 1.2V (typ). Used to turn
on/off the controlled power supplies in conjunction with the PMBus OPERATION command.
7
DACOUT1
Analog Voltage Output of Internal 12-Bit DAC 1. Connect to TRIM, REFIN, or FB of a DC-DC module
or an LDO to adjust the power-supply output voltage. High impedance in shutdown.
8
AGND
Analog Ground. Connect AGND to AGND1 and to DGND externally close to the device.
9
ENOUT0
On/Off Signal Output 0. Typically used to turn on/off a power supply. Controlled by the PMBus
OPERATION command or the sequencer. Can be configured as either an active-high or an active-low
open-drain output. See the ENOUT_ Operation section.
10
ENOUT1
On/Off Signal Output 1. Typically used to turn on/off a power supply. Controlled by the PMBus
OPERATION command or the sequencer. Can be configured as either an active-high or an active-low
open-drain output. See the ENOUT_ Operation section.
11
ENOUT2
On/Off Signal Output 2. Typically used to turn on/off a power supply. Controlled by the PMBus
OPERATION command or the sequencer. Can be configured as either an active-high or an active-low
open-drain output. See the ENOUT_ Operation section.
12
ENOUT3
On/Off Signal Output 3. Typically used to turn on/off a power supply. Controlled by the PMBus
OPERATION command or the sequencer. Can be configured as either an active-high or an active-low
open-drain output. See the ENOUT_ Operation section.
13
CLKIO
Clock Input/Output. User-configurable clock input/output signal. The system controller can provide a
clock input to synchronize the time bases of multiple MAX16064 devices. Alternatively, a MAX16064
can provide a 1MHz output clock to other MAX16064s for synchronization. See the MFR_MODE (D1h)
section. When configured as an output, CLKIO is an open-drain output and a pullup resistor is
required.
14
A1/SCLE
Dual-Functioned MAX16064 Slave Address Identifier (LSB) and EEPROM I
2
C Clock Output. See the
MAX16064 Address Assignment and External EEPROM Interface sections.
15
A2/SDAE
Dual-Functioned MAX16064 Slave Address Identifier and EEPROM I
2
C Data Input/Output. See the
MAX16064 Address Assignment and External EEPROM Interface sections.
16
A3/CONTROL
Dual-Functioned MAX16064 Slave Address Identifier (MSB) and Power-Supply On/Off Control Using
the MFR_MODE Command. See the MAX16064 Address Assignment and A3/CONTROL Operation
sections.
17
RESET
Active-Low, Open-Drain Reset Output