TLE7209-2R_07 Datasheet, PDF (5/32 Pages) Infineon Technologies AG – 7 A H-Bridge for DC-Motor Applications

TLE 7209-2R
2
Circuit Description
Circuit Description
2.1
Control Inputs
The bridge is controlled by the Inputs IN1, IN2, DIS and EN as shown in Table 2. The
outputs OUT1 and OUT2 are set to High or Low by the parallel inputs IN1 and IN2,
respectively. In addition, the outputs can be disabled (set to tristate) by the Disable and
Enable inputs DIS and EN.
Inputs IN1, IN2 and DIS have an internal pull-up. Input EN has an internal pull-down.
Table 2
Pos.
Functional Truth Table
DIS EN IN1 IN2 OUT1 OUT2 SF¹⁾ SPI²⁾
DIA_REG
1. Forward
2. Reverse
L HHL H
L HL HL
L
H see
H
H ^{Chapter 2.4.2}
3. Free-wheeling low
L HL L L
L
H
4. Free-wheeling high L H H H H
H
H
5. Disable
HXXXZ
Z
L
6. Enable
XL XXZ
Z
L
7. IN1 disconnected
L HZ XH
X
H
8. IN2 disconnected
L HXZ X
H
H
9. DIS disconnected
ZXXXZ
Z
L
10. EN disconnected
XZXXZ
Z
L
11. Current limit. active L H X X Z
Z
H
12. Under Voltage
XXXXZ
Z
L
13. Over-temperature X X X X Z
Z
L
14. Over-current
XXXXZ
Z
L
1) _{If Mode “Status-Flag” is selected (see Chapter 2.4)}
2) _{If Mode “SPI-Diagnosis” is selected (see Chapter 2.4)}
Data Sheet
5
Rev. 1.4, 2007-04-05