Infineon Technologies CYPRESS Traveo Series Manual page 213

Low Voltage Detection (External Voltage)
9.1.4.11
Low-voltage detection (external low-voltage detection)
Parameter Symbol
Supply voltage range
Detection voltage
(before trimming)
Detection voltage
(after trimming)
Hysteresis width
Low-voltage
detection time
Power supply voltage
regulation
*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 S6J335xxSx or S6J335xxUx or S6J335xxTx or S6J335xxVx option.
*4: For S6J335xxAx or S6J335xxBx or S6J335xxCx or S6J335xxDx or S6J335xxEx or S6J335xxFx or S6J335xxGx or
S6J335xxHx 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 (2.7V).
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 S6J335xxSC or S6J335xxUC or S6J335xxTC or S6J335xxVC options:
Depending on the threshold setting, LVDH1 can always detect VCC5 low voltage before the supply drops below the level
defined in 9.1.2 Recommended Operating
LVDH1 threshold settings.
Document Number: 002-10634 Rev. *J
Pin Name Conditions
V VCC5
DP5
V VCC3
DP3
VCC5
V
DLBT
VCC3
VCC5
V
DLAT
VCC3
V VCC5
HYS
Td -
- VCC5
Condition. Please refer to S6J3300 series Hardware Manual for available list of
(T : Recommended operating conditions, V
A
Value
Min Typ
*3
3.5
-
2.7 *4
- 2.7
*1 *3
3.6 4.0
*1 *5 *4
2.3 2.6
*1 *5 2.3 2. 6
*1 3.86 *3 4.0
*1 *5 *4
2.51 2.6
*1 *5
2.51
- - 100
- -
- -2
S6J3350 Series
Unit
Max
*3
- 5.5
V
- 3.6 *4
- 3.6 V
*3 *3
4.4
V
*4 *4
2.9
2.9 V
*3 4.14 *3
V
*4 *4
2.69
2.6 2.69 V
- mV
- 40 μs
- 2 V/ms
= AV = 0.0 V)
SS SS
Remarks
When power-
supply voltage
falls
and detection
level is set
initially
When power-
supply voltage
falls
and detection
level is set
initially
Typ±3.5%
When power-
supply voltage
rises
*2
9.1.2
Page 212 of 307