MAX14900E Datasheet, PDF (13/31 Pages) Maxim Integrated Products – Global and Per-Channel Diagnostics

MAX14900E
Octal, High-Speed, Industrial, High-Side Switch
Pin Description (continued)
PIN
NAME
FUNCTION
Serial/Parallel Select Input. Drive SRIAL high to set and configure the O_ outputs through the serial
37
SRIAL
interface. Drive SRIAL low to set the O_ outputs through the parallel (IN_) pins. SRIAL does not affect
the read back of diagnostics/status information through the serial interface. SRIAL has an internal 200kΩ
pulldown resistor.
39
O5
Driver Output 5. May be configured as a high-side switch or push-pull output.
41
O6
Driver Output 6. May be configured as a high-side switch or push-pull output.
44
O7
Driver Output 7. May be configured as a high-side switch or push-pull output.
46
O8
Driver Output 8. May be configured as a high-side switch or push-pull output.
48
FAULT
Global Fault Output. FAULT is an open-drain, active-low output that asserts when a fault condition
(thermal shutdown, open-load, and/or overload protection) is detected on any O_ output.
—
EP
Exposed Pad. Connect EP to a large ground plane, which is electrically connected to PGND, using a via
farm to minimize thermal impedance; not intended as an electrical connection point.
Functional Diagram
VL
V5
V_DD
FLTR
VL V5
VDD
VDD
PUSHPL
OL/IN1
UV MONITOR
DRIVE + MONITOR ^O8
O8
EN
VDD
IN2
CRC/IN3
CERR/IN4
IN5
IN6
CNFG/IN7
PARALLEL
INTERFACE
MAX14900E
DRIVE + MONITOR ^O7
EN
O7
VDD
DRIVE + MONITOR ^O6
O6
EN
VDD
S16/IN8
SRIAL
CS
CLK
SDI
SERIAL
INTERFACE
CONFIG
AND
SETTING
DRIVE + MONITOR ^O5
EN
O5
VDD
DRIVE + MONITOR ^O4
O4
VDD
EN
DRIVE + MONITOR ^O3
O3
SDO
EN
VDD
DRIVE + MONITOR ^O2
O2
OVERLOAD
VDD
FAULT
REXT
DIAGNOSTICS
OVERTEMP
OPEN LOAD
DRIVE + MONITOR ^O1
O1
EN
AGND
PGND
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