BTC50010-1TAA_15 Datasheet, PDF (26/31 Pages) Infineon Technologies AG – High-Side Power Connector

BTC50010-1TAA
Application Information
Table 9 Bill of material (cont’d)
Reference Value
Purpose
Z₁ and Z₂ Zener diodes
Protection of the BTC50010-1TAA during loss of load (correspond to fuse blow
on fuse A) or loss of battery (correspond to fuse blow on fuse B) or against huge
negative pulse (like ISO pulse 1), please refer to Figure 12 and Figure 13.
Z_a
and/or
Z_b
T₂
Schottky diode
Zener transient
suppressor
MOSFET
transistor
Protection of BTC50010-1TAA when driving an inductive load, stand alone
(option B) or together with Z_b (option A).
Protection of BTC50010-1TAA when driving an inductive load, to be used
together with Z_a in option A to accelerate the demagnetization process.
Added optionally only for blocking the reverse current in free wheeling path,
needed only for option A or B.
FUSE
e.g.
30A ATO FUSE
Protection of the BTC50010-1TAA , wire harness and the load during short
circuit. Depending on application requirement, either fuse A or fuse B will be
placed.
C_VS
C_OUT
100 nF
10 nF
Improve EMC behavior (in layout, please place it close to the pin)
Improve EMC behavior (in layout, please place it close to the pins)
6.1
Information for Application Combining PWM Mode with Fuse
The maximum of average power dissipation ¹⁾P_loss is not allowed to be exceeded. Above all, the condition of t_DC >
t_{fuseblow_max} must be fulfilled. The t_{fuseblow_max} is the maximum fuse blow time at certain fuse blow current on the I/t
curve of the selected fuse for certain application. During short circuit, the load current could rise up to multiple of
the nominal current value until fuse blow. The t_DC is defined in Figure 21.
P_loss = (switching_ON_energy + switching_OFF_energy + I_L2 * R_DS(ON) * t_DC) / t_period
I_IN
I _{IN_ON}
I_{IN_OFF}
P
t
t_period
P_{Los s}
t
t_DC
Figure 21 Definition of Average Power Dissipation of BTC50010-1TAA
1) In real application with R_thj,a and T_amb the maximum allowed average power dissipation is defined: P_loss=(150°C - T_amb) /
R_thj,a
Data Sheet
Connect FET
26
1.3, 2015-02-06