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L6711 Fiches technique(PDF) 40 Page - STMicroelectronics

No de pièce L6711
Description  3 Phase controller with dynamic VID and selectable DACs
PDF  50 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6711 Fiches technique(HTML) 40 Page - STMicroelectronics

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Driver section
L6711
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Moreover, since the device has an exposed pad to better dissipate the power, also the
thermal resistance between junction and ambient is important.
Figure 16 shows the Switching Power for different kind of mosfets driven.
Figure 20.
Controller power dissipated (Quiescent + Switching; VCC = VCCDR = VBOOT
= 12V)
0
500
1000
1500
2000
2500
3000
10 0
3 00
500
700
900
Sw it ch ing Frequency [k Hz] p er Phase
Q G_HS=24nC
Q G_LS=62nC
Q G_HS=18nC
Q G_LS=47nC
Q G_HS=3 6nC
Q G_LS=94nC
Q G_HS=48 n C
Q G_LS= 124nC
Q G_HS=72nC
Q G_LS=196nC
0
50 0
100 0
150 0
200 0
250 0
300 0
100
300
500
700
900
S w itc hing Freq uen cy [kH z] p er P hase
Q G_HS= 24nC
Q G_LS= 62n C
Q G_HS= 18nC
Q G_LS= 47n C
Q G_HS= 36nC
Q G_LS=9 4nC
Q G_HS= 48n C
Q G_L S=124n C
Q G_HS= 72n C
Q G_LS= 1 96nC
RGATE = RGATE_MOSFET = 0
RGATE_HS = 2.2Ω; RGATE_LS = 3.3Ω; · RGATE_MOSFET = 1Ω



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