BTS4175SGA Datasheet, PDF (22/26 Pages) Infineon Technologies AG – Smart High-Side Power Switch

BTS4175SGA
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 16 shows the electrical equivalent
input circuitry. The pull down current source ensures the channel is OFF with a floating input.
R_I
IN
I_I
Figure 16 Input pin circuitry
ESD
To driver’s logic
Input circuitry.vsd
8.2
Electrical Characteristics
Electrical Characteristics: Diagnostics
V_S = 13.5 V, 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
Min. Typ. Max.
INput pins characteristics
8.2.1 Low level input voltage
V_IN(L)
–
–
0.8
V
8.2.2 High level input voltage
V_IN(H)
2.2
–
–
V
8.2.3 Input voltage hysteresis
V_IN(HYS) –
0.4
–
V
8.2.4 Low level input current
I_IN(L)
1
–
25
µA
8.2.5 High level input current
I_IN(H)
3
–
25
µA
8.2.6 Input resistance
R_I
2
3.5
5
kΩ
1) If ground resistor R_GND is used, the voltage drop across this resistor has to be added
2) Not subject to production test, specified by design
Conditions
–¹⁾
–¹⁾
–²⁾
V_IN= 0,7V
V_IN= 5V
See Figure 16
Data Sheet
22
Rev.1.0, 2008-04-29