TLE6711_07 Datasheet, PDF (19/25 Pages) Infineon Technologies AG – Multifunctional Voltage Regulator and Watchdog

TLE 6711
Application Information
5
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
Figure 12 shows the application circuit of the TLE 6711 G/GL with the suggested external parts.
D₁
D₂
L _BO
100 µH
D_BO
I _BOLoad
V_Batt
C_L
ZD1
10 µF 36 V
TLE 6711 G
BOFB
12
C_S
220 nF
C_BO1
10 nF
14 BOI
R_BO1
100 kΩ C_BO1
C_BO2
4700 µF 220 nF
R_BO2
10 kΩ
V_BOOST
Boost
Converter
Biasing ^VBoost
V_REF
13 BOGND
C_BOT
10 BDS 10 nF
9 ^VBOOST
BUC 6
R_BUC
47 kΩ
C_BUC
470
nF
R1
R_R
47 kΩ
Buck
Converter
8 BUO
L _BU
220 µH
V_Internal
7 ^VCC
5 SEN
Reference
Current
Generator
and
Oscillator
Reset
Window
Watchdog
and
System
Enable
3 WDI
2 RO
D_BU
C_BU1
100 µF
10 kΩ
C_BU2
220 nF
V_CC
System
Enable
Output
Watchdog
Trigger
Input
Reset
Output
4 GND
11 OVL
Device Type
Supplier Remarks
Boost
Status
Output
D₁ BAW78C
Infineon 200 V; 1 A; SOT-89
D₂ BAW78C
Infineon 200 V; 1 A; SOT-89
D_BO BAW78B
Infineon 100 V; 1 A; SOT-89
D_BO SS14
multiple Schottky; 40 V; 1 A
D_BU -
-
Schottky; 100 V; 1 A
L _BO B82442-A1104 EPCOS 100 µH; 0.25 A; 1.28 Ω
L _BO Do3316P-104 Coilcraft 100 µH; 1.2 A; 0.28 Ω
L _{BU B82442-H1224 EPCOS 220 µH; 0.24 A; 2.72 Ω}
L _{BU Do3316P-224} Coilcraft _{220 µH; 0.8 A; 0.61 Ω AEB02948}
Figure 12 Application Circuit (pinning valid for PG-DSO-14-1)
Data Sheet
19
Rev. 3.4, 2007-08-16