Document Number: 002-10635 Rev. *I
Page
225 of 325
S6J3310/20/30/40 Series
9.1.4.11
Low Voltage Detection (External Voltage)
Low-voltage detection (external low-voltage detection)
(T
A
: Recommended operating conditions, V
SS
= AV
SS
= 0.0 V)
Parameter
Symbol
Pin Name
Conditions
Value
Unit
Remarks
Min
Typ
Max
Supply voltage
range
V
DP5
VCC5
-
3.5
*3
-
5.5
*3
V
2.7
*4
-
3.6
*4
V
DP3
VCC3
-
2.7
-
3.6
V
Detection voltage
(before trimming)
V
DLBT
VCC5
*1
3.6
*3
4.0
*3
4.4
*3
V
When power-
supply
voltage falls
and
detection
level is set
initially
*1 *5
2.3
*4
2.6
*4
2.9
*4
VCC3
*1 *5
2.3
2. 6
2.9
V
Detection voltage
(after trimming)
V
DLAT
VCC5
*1
3.86
*3
4.0
*3
4.14
*3
V
When power-
supply
voltage falls
and
detection
level is set
initially
Typ ±3.5 %
*1 *5
2.51
*4
2.6
*4
2.69
*4
VCC3
*1 *5
2.51
2.6
2.69
V
Hysteresis width
V
HYS
VCC5
-
-
100
-
mV
When power-
supply
voltage rises
Low-voltage
detection time
Td
-
-
-
-
40
μs
Power supply
voltage regulation
-
VCC5
-
-2
-
2
V/ms
*2
*1: If the fluctuation of the power supply is faster than the low-voltage detection time, there is a possibility to generate or release
after the power supply voltage has exceeded the detection voltage range.
*2: Please suppress the change of the power supply within the range of the power-supply voltage regulation to do a low-voltage
detection by detecting voltage (VDL)
*3: For S6J33xxxSx or S6J33xxxUx or S6J33xxxTx or S6J33xxxVx option.
*4: For S6J33xxxAx or S6J33xxxBx or S6J33xxxCx or S6J33xxxDx or S6J33xxxEx or S6J33xxxFx or S6J33xxxGx or S6J33xxxHx
option.
*5: These LVD settings cannot be used to reliably generate a reset before voltage dips below minimum guaranteed MCU operation
voltage, as these detection levels are below the minimum guaranteed MCU operation voltage (2.7 V).
Notes:
−
The detection/release threshold values of following LVD channels are potentially below supply range defined in
Recommended Operating Condition
LVDH1 (VCC5)
LVDH2 (VCC3)
−
Please use these LVD channels with your own risk.
−
Please monitor the external power supplies on the PCB if needed.
−
For S6J33xxxSC or S6J33xxxUC or S6J33xxxTC or S6J33xxxVC options:
Depending on the threshold setting, LVDH1 can always detect VCC5 low voltage before the supply drops below the level
defined in
Recommended Operating Condition
. Please refer to S6J3300 series Hardware Manual for available list of
LVDH1 threshold settings.