MAX8688AHETG+ Maxim Integrated Products, MAX8688AHETG+ Datasheet - Page 28

• Manufacturer Part Number: MAX8688AHETG+
• Description: IC PWR SUPPLY CTRLR/MONTR 24TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8688AHETG+

• Applications: Power Supply Controller/Monitor
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 6.7mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Digital Power-Supply Controller/Monitor
with PMBus Interface
The IOUT_SCALE command is used to set the ratio of
the voltage at the current-sense pins to the sensed cur-
rent. For devices using a fixed current-sense resistor, it
is the same value as the resistance.
The unit of the IOUT_SCALE factor is mΩ.
The 2 data bytes are in DIRECT format. Valid values are
from 0.5mΩ to 5mΩ.
The default IOUT_SCALE value is 0mΩ.
The VOUT_OV_FAULT_LIMIT command sets the value
of the output voltage measured across RS+ and RS-
that causes an output overvoltage fault.
The 2 data bytes are in DIRECT format. Valid values are
the same as VOUT_COMMAND.
The default VOUT_OV_FAULT_LIMIT value is 00h.
In response to the VOUT_OV_FAULT_LIMIT being
exceeded, the MAX8688:
1) Sets the VOUT_OV bit in the STATUS_BYTE.
2) Sets
3) Responds as specified by VOUT_OV_FAULT_
4) Notifies the host through FLT assertion.
The VOUT_OV_WARN_LIMIT command sets the value
of the output voltage measured across RS+ and RS-,
which causes an output-voltage high warning. This
value is typically less than the output overvoltage
threshold in VOUT_OV_FAULT_LIMIT.
The 2 data bytes are in DIRECT format. Valid values are
the same as the VOUT_COMMAND.
The default VOUT_OV_WARN_LIMIT value is 00h.
In response to the VOUT_OV_WARN_LIMIT being
exceeded, the MAX8688:
1) Sets the OTHER bit in the STATUS_BYTE.
2) Sets
3) Notifies the host through FLT assertion.
The VOUT_UV_WARN_LIMIT command sets the value
of the output voltage measured across RS+ and RS-,
which causes an output-voltage low warning. This value
is typically greater than the output undervoltage fault
threshold in VOUT_UV_FAULT_LIMIT.
28
MFR_FAULT_STATUS register.
RESPONSE bits in the MFR_FAULT_RESPONSE
register.
MFR_FAULT_STATUS register.
______________________________________________________________________________________
the
the
VOUT_OV_FAULT_LIMIT (40h)
VOUT_OV_FAULT
VOUT_OV_WARN_LIMIT (42h)
VOUT_OV_WARN
VOUT_UV_WARN_LIMIT (43h)
IOUT_SCALE (38h)
bit
bit
in
in
the
the
This warning is masked until the output voltage reaches
the programmed voltage at startup and also during
turn-off when the POL is disabled.
The 2 data bytes are in DIRECT format. Valid values are
the same as VOUT_COMMAND.
The default VOUT_UV_WARN_LIMIT value is 00h.
In response to violation of the VOUT_UV_WARN_LIMIT,
the MAX8688:
1) Sets the OTHER bit in the STATUS_BYTE.
2) Sets
3) Notifies the host using FLT assertion.
The VOUT_UV_FAULT_LIMIT command sets the value
of the output voltage measured across RS+ and RS-,
which causes an output undervoltage fault.
This fault is masked until the output voltage reaches the
programmed voltage at startup and also during turn-off
when the POL is disabled.
The 2 data bytes are in DIRECT format. Valid values are
the same as VOUT_COMMAND.
The default VOUT_UV_FAULT_LIMIT value is 00h.
In response to violation of the VOUT_UV_FAULT_LIMIT,
the MAX8688:
1) Sets the OTHER bit in the STATUS_BYTE.
2) Sets
3) Responds as specified by VOUT_UV_FAULT_
4) Notifies the host using FLT assertion.
The IOUT_OC_FAULT_LIMIT command sets the value
of the output current, in amperes, measured across
ISN+ and ISN- that causes the overcurrent detector to
indicate an overcurrent fault condition.
The 2 data bytes are in DIRECT format. Valid values are
from 0 to 50/IOUT_SCALE amperes.
The default IOUT_OC_FAULT_LIMIT value is 00h.
In response to the IOUT_OC_FAULT_LIMIT being
exceeded, the MAX8688:
1) Sets the IOUT_OC bit in the STATUS_BYTE.
2) Sets
MFR_FAULT_STATUS register.
MFR_FAULT_STATUS register.
RESPONSE bits in the MFR_FAULT_RESPONSE
register.
MFR_FAULT_STATUS register.
the
the
the
VOUT_UV_FAULT_LIMIT (44h)
VOUT_UV_FAULT
VOUT_UV_WARN
IOUT_OC_FAULT
IOUT_OC_FAULT_LIMIT (46h)
bit
bit
bit
in
in
in
the
the
the