MAX14827 Datasheet, PDF (31/41 Pages) Maxim Integrated Products – Integrated LED Driver

MAX14827
IO-Link Device Transceiver
STATUS Register [A2, A1, A0] = [000]
Bit
Bit Name
Read/Write
POR State
Reset Upon Read
Bit 7
ThShut
R
0
N
Bit 6
DiLvl
R
0
N
Bit 5
DoFault
R
0
N
Bit 4
CQFault
R
0
N
The Status register reflects current state of various IC functions.
Bit 3
V24W
R
0
N
Bit 2
UV24
R
0
N
Bit 1
CQLvl
R
0
N
Bit 0
TempW
R
0
N
BIT
NAME
DESCRIPTION
Thermal Shutdown Status
7
ThShut
1: This bit is set when the MAX14827 has entered thermal shutdown mode.
0: This bit is cleared automatically when the device exits thermal shutdown.
DI Logic Level
6
DiLvl
1: This bit is set when the DI voltage is a logic high (V_DI < V_TL).
0: This bit is clear when the DI voltage is a logic low (V_DI > V_TH).
DO Driver Fault Status
5
DoFault
1: This bit is set when a fault occurs on the DO driver (over current or over heating).
0: This bit is cleared automatically when the fault on DO is removed.
C/Q Driver Fault Status
4
CQ_Fault
1: This bit is set when a fault occurs on the C/Q driver (over current or over heating).
0: This bit is cleared automatically when the fault on C/Q is removed.
V24 Low Voltage Warning Status
1: This bit is set when V24 falls below the IO-Link low-voltage warning threshold (V₂₄ <
3
V24W
V_24W).
0: This bit is cleared automatically when V24 rises above the low-voltage warning
threshold.
V24 Supply Status
2
UV24
1: This bit is set when V24 falls below the UVLO threshold (V₂₄ < V_24UVLO).
0: This bit is cleared automatically when V24 rises above the UVLO threshold.
C/Q Logic Level
1
CQLvl
1: This bit is set when the C/Q voltage is a logic high (V_C/Q < V_TL).
0: This bit is clear when the C/Q voltage is a logic low (V_C/Q > V_TH).
Overtemperature Warning
0
TempW
1: This bit is set when the die temperature exceeds the warning threshold (T_J > T_WRN).
0: This bit is cleared automatically when the when the die temperature falls below the
warning threshold and hysteresis (T_J < T_WRN - T_{WRN_HYST}).
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