Datasheet

Data Sheet 10 Rev. 1.6, 2009-02-03
TLE 4471
Enable Function E1, E2, E3, EN
E1 On threshold
V
E1, on
3.54.14.5V V
Q1
> 4.8 V; V
Q2
> 4.8 V
E1 Off threshold
V
E1, off
1.5– 2.5V –
E1 High input current
I
E1, on
–50–µA V
E1
= 16 V
E1 Low input current
I
E1, off
-1 – 5 µA V
E1
= 0 V
E2 On threshold
V
E2, on
1.31.72.0V V
Q1
> 4.8 V; V
Q2
> 4.8 V
E2 Off threshold
V
E2, off
0.81.21.7V –
E2 resistance to GND
R
E2
51540kΩ –
E3 On threshold
V
E3, on
3.5– 4.5V V
Q1
> 4.8 V; V
Q2
> 4.8 V
E3 Off threshold
V
E3, off
1.5– 2.5V –
E3 High input current
I
E3, on
–50–µA V
E3
= 16 V
E3 Low input current
I
E3, off
-1 – 5 µA V
E3
= 0 V
EN On threshold
V
EN, on
1.01.72.3V V
Q3
> 4.8 V; Q1 ON
EN Off threshold
V
EN, off
0.81.21.7V V
Q3
< 0.1 V
Enable resistance to
GND
R
EN
51540kΩ –
Reset Generator
Switching threshold
V
Q, rth
4.5 4.65 4.8 V RADJ connected to
GND
Reset headroom
V
head
250 350 500 mV 10 mA < I
Q1
< 450 mA
Reset pull-up
R
R
2.4 – 6 kΩ –
Reset output low
voltage
V
R, low
– – 0.4 V 1 V < V
Q1
< V
Q, rth
Reset output Low
voltage
V
R, low
––0.4VV
Q1
= 1 V, I
R
= 50 µA
Reset output High
voltage
V
R, high
4.5 – – V –
Reset adjust
threshold
V
RADJ
1.25 1.35 1.45 V V
Q1
> 3.5 V
Table 4 Characteristics (cont’d)
V
I
= 13.5 V; T
j
= -40 °C < T
j
< 125 °C
Parameter Symbol Limit Values Unit Measuring Condition
Min. Typ. Max.