PIN
NUMBER
NAME ACTION EFFECT
Open (or Disconnected)
ALRM
L
goes high as it causes an overvoltage to the affected input pair even if
the overvoltage is set to the maximum.
13 C3
Short to Pin 14
• If short occurs before power-up, the part works as if C3 does not exist
because the internal circuit detects the situation and assumes it is what the
application intended to do. The monitoring of C3 to C2 is disabled and is not
enabled even if the short is removed.
• If short occurs after power-up, the situation is treated as a zero voltage input
for C5 to C4. ALRM
L
goes high when the undervoltage is enabled.
Open (or Disconnected)
ALRM
L
goes high as it causes an overvoltage to the affected input pair even if
the overvoltage is set to the maximum.
14 C2
Short to Pin 15
• If short occurs before power-up, the part works as if C2 does not exist
because the internal circuit detects the situation and assumes it is what the
application intended to do. The monitoring of C2 to C1 is disabled and is not
enabled even if the short is removed.
• If short occurs after power-up, the situation is treated as a zero voltage input
for C2 to C1. ALRM
L
goes high when the undervoltage is enabled.
Open (or Disconnected)
ALRM
L
goes high as it causes an overvoltage to the affected input pair even if
the overvoltage is set to the maximum.
15 C1
Short to Pin 16
ALRM
L
goes high irrespective of whether undervoltage is enabled/disabled
and before and after power-up.
Open (or Disconnected) No effect.
16 C0
Short to Pin 17
• If pin 17 is tied to V
AA
, then V
AA
is shorted to AGND and ALRML goes low.
• If pin 17 is tied to AGND, there is no effect.
Open (or Disconnected)
The pin defaults to low due to the internal pulldown (see Note 8). The effect
depends on the intended undervoltage setting.
17 UVSEL0
Short to Pin 18
• If pin 17 and pin 18 have the same intended value, there is no effect for the
short.
• If pin 17 and pin 18 have a different setting, the V
AA
is shorted to AGND.
ALRM
L
goes low.
Open (or Disconnected)
The pin defaults to low due to the internal pulldown (see Note 8). The effect
depends on the intended undervoltage setting.
18 UVSEL1
Short to Pin 19
• If pin 18 and pin 19 have the same intended value, there is no effect for the
short.
• If pin 18 and pin 19 have a different setting, the V
AA
is shorted to AGND.
ALRM
L
goes low.
Open (or Disconnected)
The pin defaults to low due to the internal pulldown (see Note 8). The effect
depends on the intended undervoltage setting.
19 UVSEL2
Short to Pin 20
• If pin 19 and pin 20 have the same intended value, there is no effect for the
short.
• If pin 19 and pin 20 have the different setting, the V
AA
is shorted to. AGND
ALRM
L
goes low.
Table 4. FMEA Analysis (Note 6) (continued)
12-Channel, High-Voltage
Battery-Pack Fault Monitors
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