MAX16046EVKIT+ Maxim Integrated Products, MAX16046EVKIT+ Datasheet - Page 16

• Manufacturer Part Number: MAX16046EVKIT+
• Description: IC EE-PROG SYS MGR 12CH 56-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX16046EVKIT+

• Main Purpose: Power Management, Power Supply Supervisor/Tracker/Sequencer
• Utilized Ic / Part: MAX16046, MAX16048
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MAX16046 Evaluation Kit
Each GPIO has a separate indicator LED and pullup
resistor, and each signal is brought out to a pin on P6.
An LED will light to indicate that the associated output
has gone to the logic-low state. The LEDs can be dis-
abled by turning off switch 1 in switch bank S4. The
pullup resistors are individually switched by S4; see
Table 4 for the assignments of each switch in the switch
bank. To use an external pullup voltage, connect J2 in
the 2-3 position and connect the voltage source to the
VPU pin of P6.
Through the MAX16046 EV kit software, GPIO2 and
GPIO3 can be configured as margin-up and margin-
down inputs, respectively. Switches S6 and S7 pull
GPIO2 and GPIO3 to ground. It is not necessary to dis-
able the LEDs or disconnect the pullup resistors for
GPIO2 or GPIO3 to use this function.
16
______________________________________________________________________________________
General-Purpose Inputs and Outputs
Margin Up and Margin Down
The MAX16046 has an analog EN connection that can
be used to trigger power-up or power-down sequenc-
ing. An on-board resistive divider formed by R3 and
R11 set the falling threshold to 3.0V on V
old can be modified by changing R3 and R11
according to the following formulas:
EN can be manually controlled using the hardware
enable switch, S5. Set S5 to the OFF position to pull EN
to 0V, and set S5 to the ON position to allow EN to
respond to the V
Two of the MAX16046’s DACOUTs (DACOUT2 and
DACOUT3) connect to the two LDO regulators on the
EV kit, LDO1 and LDO2, respectively. The rest go to
header P8. To evaluate the margining capabilities of the
MAX16046, configure GPIO2 and GPIO3 as margin-up
and margin-down inputs from the Advanced tab in the
EV kit software. When the margin-down (S7) or margin-
up (S6) pushbuttons are pressed, the DAC outputs are
enabled and the DAC codes are loaded from the
Margin UP or Margin DN columns in the Advanced
tab, causing the LDO regulator output voltages to shift.
V
V
VCC TH RISING
VCC
_
_
T T H FALLING
CC
_
_
voltage.
=
0 525
=
.
0 500
.
Hardware Enable
×
⎛
⎝ ⎜
×
1
⎛
⎝ ⎜
+
1
+
R
CC
R
11
R
3
R
Margining
; the thresh-
11
3
⎞
⎠ ⎟
⎞
⎠ ⎟