Datasheet

Data Sheet 21 Rev. 1.0, 2008-03-18
BTS4300SGA
Input Pin
8 Input Pin
8.1 Input Circuitry
The input circuitry is CMOS compatible. The concept of the Input pin is to react to voltage transition and not to
voltage threshold. With the Schmidt trigger, it is impossible to have the device in an un-defined state, if the voltage
on the input pin is slowly increasing or decreasing. The output is either OFF or ON but cannot be in an linear or
undefined state. The input circuitry is compatible with PWM applications. Figure 15 shows the electrical equivalent
input circuitry. The pull down current source ensures the channel is OFF with a floating input.
Figure 15 Input pin circuitry
8.2 Electrical Characteristics
Electrical Characteristics: Diagnostics
V
S
= 13.5V, T
j
= -40 °C to +150 °C, Typical values are given at V
s
= 13.5V, T
j
= 25°C
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
INput pins characteristics
8.2.1 Low level input voltage
V
IN(L)
––0.8V–
1)
1) If ground resistor R
GND
is used, the voltage drop across this resistor has to be added
8.2.2 High level input voltage V
IN(H)
2.2––V–
1)
8.2.3 Input voltage hysteresis V
IN(HYS)
–0.3–V–
2)
2) Not subject to production test, specified by design
8.2.4 Low level input current I
IN(L)
1–30µAV
IN
= 0.7V
8.2.5 High level input current
I
IN(H)
1–30µAV
IN
= 5V
8.2.6 Input resistance
R
I
1.5 3.5 5 kΩ See Figure 15
IN
ESD
To driver’s logic
Input circuitry.vsd
R
I
I
I