TLE 8444SL Infineon Technologies, TLE 8444SL Datasheet - Page 26

• Manufacturer Part Number: TLE 8444SL
• Manufacturer: Infineon Technologies

Specifications of TLE 8444SL

• Packages: PG-SSOP-24-7
• Ipeak: 4 x 0.8 A
• Inhibit: Y
• Iq (typ): 1.0 µA
• Mounting: SMT
• Technology: BCD

Figure 18
Figure
Figure
The switching of the cascaded motors should happen one after another. Due to this setup, 3 flaps can be driven,
by saving one halfbridge.
Figure
currents. The application PCB layout of input and output traces must be as symmetrical as possible to assure a
proper behavior of the device.
Note : All VS and GND pins must be externally connected together. CS and CS2 capacitors must be placed as
close as possible to the Vs pin for optimized EMC performance.
Data Sheet
18a, Two Motor separately: e.g. mirror x-y position. The motors can be driven independently or in parallel.
18b, Three Motor cascaded: e.g. HVAC flap control. The DC brush motors are never ON at the same time.
18c, Single Motor higher current: Applications with DC brush motors which require higher stall and inrush
WDO
Application Circuit for DC brush motor loads
WDI
XC866
µC
R
VCC
R
EF2
Watchdog Out
Watchdog In
Reset Out
R
EF1
Q
100 nF
C
C
22 F
D
14
8
1
9
Q
INH
IN
IN
IN
EF
EF
IN
6
2
3
4
1
TLE4678 G
D
1
2
3-5,10-12
VReg
( pin 1,2,11,12, 20)
( pin 4,9,15,22)
GND
GND
V
26
S
7
Reset
Adjust
13
2
OUT
OUT
OUT
OUT
Input
Watchdog Adjust
4
1
2
3
R
100k
WA
C
100nF
C
100 nF
I
S2
Two Motor
separately
M1
M2
a
C
47 F
S
V
BAT
D
RP
cascaded
D
Three
Motor
ZS
M1
M2
M3
b
Rev. 1.1, 2009-07-07
Block Description
current
TLE 8444SL
motor,
Single
higher
M1
c