Datasheet

TLE42754
Block Description and Electrical Characteristics
Data Sheet 19 Rev. 1.11, 2012-01-20
Electrical Characteristics Reset Function
V
I
= 13.5 V, -40 °C ≤ T
j
≤ 150 °C, all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
Output Undervoltage Reset
5.3.1 Output Undervoltage Reset
Switching Thresholds
V
RT
4.5 4.65 4.8 V V
Q
decreasing
Reset Output RO
5.3.2 Reset Output Low Voltage
V
RO,low
–0.20.4V1 V ≤ V
Q
≤ V
RT
;
I
RO
= 0.2 mA
5.3.3 Reset Output
Sink Current Capability
I
RO,max
0.2––mA1 V ≤ V
Q
≤ V
RT
;
V
RO
= 5 V
5.3.4 Reset Output
Leakage Current
I
RO,leak
–010µAV
RO
= 5 V
5.3.5 Reset Output External
Pull-up Resistor to
V
Q
R
RO
5––kΩ
1 V ≤
V
Q
≤ V
RT
;
V
RO
≤ 0.4 V
Reset Delay Timing
5.3.6 Power On Reset Delay Time
t
rd
10 16 22 ms C
D
= 47 nF
5.3.7 Upper Delay
Switching Threshold
V
DU
–1.8–V–
5.3.8 Lower Delay
Switching Threshold
V
DRL
–0.65–V–
5.3.9 Delay Capacitor
Charge Current
I
D,ch
–5.5–µAV
D
= 1 V
5.3.10 Delay Capacitor
Reset Discharge Current
I
D,dch
– 100 – mA V
D
= 1 V
5.3.11 Delay Capacitor
Discharge Time
t
rr,d
– 0.5 1 µs Calculated Value:
t
rr,d
= C
D
*(V
DU
-
V
DRL
)/ I
D,dch
C
D
= 47 nF
5.3.12 Internal Reset Reaction Time
t
rr,int
–47µsC
D
= 0 nF
1)
1) parameter not subject to production test; specified by design
5.3.13 Reset Reaction Time t
rr,total
– 4.5 8 µs Calculated Value:
t
rr,total
= t
rr,int
+ t
rr,d
C
D
= 47 nF