Ata6827 [preliminary – Rainbow Electronics ATA6827 User Manual
Page 5
5
4912C–AUTO–10/06
ATA6827 [Preliminary]
Table 3-2.
Output Data Protocol
Bit
Output (Status)
Register
Function
0
TP
Temperature prewarning: high = warning
1
Status LS1
High = output is on, low = output is off; not affected by SRR
2
Status HS1
High = output is on, low = output is off; not affected by SRR
3
Status LS2
Description see LS1
4
Status HS2
Description see HS1
5
Status LS3
Description see LS1
6
Status HS3
Description see HS1
7
n. u.
Not used
8
n. u.
Not used
9
n. u.
Not used
10
n. u.
Not used
11
n. u.
Not used
12
n. u.
Not used
13
SCD
Short circuit detected: set high when at least one high-side or low-side
switch is switched off by a short-circuit condition. Bits 1 to 6 can be used
to detect the shorted switch.
14
OPL
Open load detected: set high, when at least one active high-side or
low-side switch sinks/sources a current below the open load threshold
current.
15
PSF
Power-supply fail: undervoltage at pin VS detected
After power-on reset, the input register has the following status:
Bit 15 Bit 14
Bit 13
(OCS)
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
(HS3)
Bit 5
(LS3)
Bit 4
(HS2)
Bit 3
(LS2)
Bit 2
(HS1)
Bit 1
(LS1)
Bit 0
(SRR)
x
x
H
x
x
x
x
x
x
L
L
L
L
L
L
L
The following patterns are used to enable internal test modes of the IC. It is not recommended to use these patterns during
normal operation.
Bit 15 Bit 14
Bit 13
(OCS)
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
(HS3)
Bit 5
(LS3)
Bit 4
(HS2)
Bit 3
(LS2)
Bit 2
(HS1)
Bit 1
(LS1)
Bit 0
(SRR)
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
H
H
H
L
L
H
H
L
L
L
L
L
L
L
L
L
H
H
H
L
L
L
L
H
H
L
L
L
L
L
L
L