TC290 Datasheet, PDF (385/476 Pages) Infineon Technologies AG – 32-Bit Single-Chip Micocontroller

TC290 / TC297 / TC298 / TC299 BB-Step
Electrical SpecificationEVR
2) It is recommended to select a capacitor with ESR less than 50 mOhm (0.5MHz - 10 MHz). It is also recommended that the
resistance of the supply trace from the pin to the EVR output capacitor is less than 100 mOhm.
3) The reset release on supply ramp-up is delayed by a time duration 20-40 us after reaching undervoltage reset threshold.
This serves as a time hysteresis to avoid multiple consecutive cold PORST events during slow supply ramp-ups owing to
voltage drop/current jumps when reset is released. The reset limit of 2,97V at pin is for the case with 3.3V generated
internally from EVR33. In case the 3.3V supply is provided externally, the bondwire drop will cause a reset at a higher
voltage of 3.0V at the V_DDP3 pin.
4) EVR robust against residual voltage ramp-up starting between 0-1 V.
Table 3-37 1.3V
Parameter
Symbol
Values
Unit Note / Test Condition
Input voltage range ¹⁾
Output voltage operational
range including load/line
regulation and aging incase of
LDO regulator
V_IN SR
V_OUT CC
Min.
2.97
1.17
Typ.
-
1.3
Max.
5.5
V
1.43
V
pass device=off chip
pass device=off chip
Output V_DD static voltage
V_OUTT CC 1.275
1.3
accuracy after trimming without
dynamic load/line regulation
with aging incase of LDO
regulator.
1.325
V
pass device=off chip
Output buffer capacitance on C_OUT CC 3
V_OUT ²⁾
Primary undervoltage reset
threshold for V_DD ³⁾
V_RST13 CC -
4.7
6.3
µF pass device=off chip
-
1.17
V
by reset release before
EVR trimming on
supply ramp-up. pass
device=off chip
Startup time
t_STR CC
-
External V_IN supply ramp ⁴⁾
dVin/dT
-
SR
-
1000
µs
pass device=off chip
1
50
V/ms pass device=off chip
Load step response
dVout/dIout -
-
100
mV dI=-150mA;
CC
Tsettle=20µs; pass
device=off chip
-100
-
-
mV dI=100mA;
Tsettle=20µs; pass
device=off chip
Line step response
dVout/dVin -10
-
10
mV dV/dT=1V/ms; pass
CC
device=off chip
1) A maximum pass device dropout voltage of 700mV is included in the minimum input voltage to ensure optimal pass device
operation.
2) It is recommended to select a capacitor with ESR less than 50 mOhm (0.5MHz - 10 MHz). It is also recommended that the
resistance of the supply trace from the pin to the EVR output capacitor is less than 100 mOhm.
3) The reset release on supply ramp-up is delayed by a time duration 30-60 µs after reaching undervoltage reset threshold.
This serves as a time hysteresis to avoid multiple consecutive cold PORST events during slow supply ramp-ups owing to
voltage drop/current jumps when reset is released.
4) EVR robust against residual voltage ramp-up starting between 0-1 V.
Data Sheet
3-379
V 1.1 2015-05
TC290/TC297/TC298/TC299 BB-Step Data Sheet downloaded by saravanakumar maniyam (larsen and Toubro limited) at 08 Sep 2015 08:06