Detailed Description - Analog Devices MAX25460 Manual

MAX25460 Evaluation Kit

Detailed Description

The MAX25460 EV kit comes fully assembled, tested,
and installed with MAX25460ATGA/V+. The stand-alone
variant can also be used on this EV kit by changing the
IC and configuration resistors. See
of stand-alone configuration. Refer to the MAX25460 data
sheet for further details on configuration resistors.
When R6 and R7 are changed per
sourced from the on-board LDO and the USB Micro-B
connection to the Pico board should not be used.
Table 1. Stand-Alone Configuration Example
PIN NAME RESISTOR
CONFIG1 R2
CONFIG2 R4
CONFIG3 R3
SDA/SCL R15/R16
3V3 R6
3V3 R7
Table 2. External Header
J1 PIN NAME
1 IN
2 SYNC
3 DATA_MODE
4 HVEN
5 ENBUCK
6 FAULT
7 INT (ATTACH)
8 BIAS
SCL
9
(CONFIG3)
SDA
10
(CONFIG2)
11 GND
12 GND
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Table 1 for an example
Table 1, 3.3V is
VALUE
0Ω Spread Spectrum: On; Sync as Input; Fsw = 2.2MHz
14.7kΩ GAIN[3:0] = 1100
GAIN[4] = 1; ILIM = 1.62A (min)
2.26kΩ
Note: Gain programmed with this configuration is 28.
DNP Remove SDA/SCL pull-ups.
DNP Jumper option, 3.3V from Pico interface board
0Ω Jumper option, 3.3V from MAX15006 LDO
3.3V supply for IN (input/output)
Buck regulator synchronization pin (input/output)
Charge detection configuration pin (input)
IC enable (active high, input)
DC-DC enable (active high, input)
Fault indicator (active low, open-drain, output)
2
I C interrupt output (active low, open-drain)
Standalone: USB attach output (active low, open-drain)
4.7V LDO output
2
I C: clock (input)
Standalone: CONFIG3 (input)
2
I C: data (input/output)
Standalone: CONFIG2 (input)
EV kit ground
EV kit ground
Evaluates: MAX25460
EV Kit Interface
Header J1 includes input and output test points for con-
trolling the IC and evaluating its functionality.
the individual pins and their functions.
Switch SW1 allows the user to set the voltage on the
HVEN, ENBUCK, SYNC, and DATA_MODE pins (see
Table 3). Setting a switch to the ON position ties the con-
nected pin high. Setting a switch to the OFF position ties
the pin to ground through a pull-down resistor. To exter-
nally control these pins through the header J1 or the PC
GUI, set all switches to the OFF position.
DESCRIPTION
DESCRIPTION
Table 2 lists
Analog Devices │ 5