Datasheet

Data Sheet 10 Rev. 1.2, 2008-10-28
TLE 4473 GV55-2
Inhibit Input INH2
Turn-on Voltage V
INH2 ON
––2.3VV
Q2
on
Turn-off Voltage
V
INH2 OFF
0.65 – – V V
Q2
off
H-input current
I
INH2 ON
-1 3.2 6 µA V
INH2
= 5.0 V (see
Page 13)
L-input current
I
INH2 OFF
-1 0.1 1 µA0 V < V
INH2
< 0.8 V
Watchdog and Reset Timing D2
Charge current
I
DC2
6.5 9.0 14.0 µA V
D2
= 1 V
Discharge current
I
DD2
2.0 3.5 5.0 µA V
D2
= 1 V
Upper timing
threshold
V
DU2
1.5 1.85 2.4 V –
Lower timing
threshold
V
DL2
0.3 0.45 0.6 V –
Saturation Voltage
V
D2,SAT
––100mVV
Q2
< V
RT2
Watchdog trigger
time
T
WI,tr
34 42 51 ms C
D2
= 100 nF
Reset delay time
T
RD2
15 20 25 ms C
D2
= 100 nF
Reset reaction time
T
rr
––5.0µs C
D2
= 100 nF
Reset Output RO2
Reset switching
threshold
V
RT2
4.55 4.65 4.8 V –
V
RT2
/V
Q2
90 93 96 % –
Reset threshold
headroom
V
R2HEAD
200 350 500 mV V
Q2
- V
RT2
Reset output
sink current
I
RO2
1.0––mAV
Q2
= 5 V, V
D2
= 0 V;
V
RO2
= 0.3 V
Reset output
low voltage
V
RO2L
–0.150.3VV
Q2
≥ 1 V;
I
RO2
= 1 mA
Reset high voltage
V
RO2H
4.5––VR
RO2,ext
= 4.7 kΩ
Table 4 Electrical Characteristics (cont’d)
V
I1
= 13.5 V; V
INH1
= V
INH2
= 5 V; -40 °C < T
j
< 150 °C; unless otherwise specified
Parameter Symbol Limit Values Unit Test Condition
Min. Typ. Max.