bts3405 Infineon Technologies Corporation, bts3405 Datasheet - Page 10

• Manufacturer Part Number: bts3405
• Description: Smart Low-side Power Switch Hitfet
• Manufacturer: Infineon Technologies Corporation

5
5.1
5.1.1
Figure 6
The internal circuitry is supplied by the input PIN. During normal operation the Input is connected to the Gate of
the power MOSFET. During fault condition the device tries to sink the current
information back to the driving circuit.
Figure 6
Figure 7
Figure 8
Data Sheet
shows the input circuit of the BTS3405G. The zener Diode protects the input circuit against ESD pulses.
Block Description and Characteristics
Input and Power Stage
Input Circuit
Input Circuit
Typical Input Threshold Voltage
Typical Transfer Characteristic
I
IN
0,7
0,6
0,5
0,4
0,3
0,2
0,1
2,00
1,75
1,50
1,25
1,00
0,75
0,50
0,25
0,00
IN
0
0
-50
Z
I
Block Description and CharacteristicsInput and Power Stage
D
D
-25
V
inth
1
= f(
I
INnom
I
0
INlim
= f(
V
T [°C]
IN
25
2
10
Source
V
);
T
IN
Logic
Gate
Fault
condition
J
50
[ V ]
V
);
D
3
I
75
= 12 V,
D
= 50 µA,
Transferchar.emf
100 125 150
4
Vinth.emf
T
Input.emf
Jstart
5
V
Smart Low-Side Power Switch
D
= 25 °C
=
V
IN
I
INlim
in order to give the fault
Rev. 1.0, 2007-12-06
BTS3405G