7 A H-Bridge for DC-Motor Applications
TLE 7209-2R
1
1.1
Overview
Features
• Operating supply voltage 5 V to 28 V
• Typical
R
DSon
= 150 mΩ for each output transistor
(at 25
°C)
• Continuous DC load current 5 A (
T
C
< 100
°C)
• Output current limitation at typ. 6.6 A
±
1.1 A
• Short circuit shut-down for output currents over 8 A
• Logic- inputs TTL/CMOS-compatible
• Output switching frequency up to 30 kHz
• Rise and fall times optimized for 0.5-2 kHz
• Over-temperature protection
• Short circuit protection
• Undervoltage disable function
• Diagnostic by SPI or Status-Flag (configurable)
• Enable and Disable inputs
• PG-DSO-20-37, -65 power package
• Green Product (RoHS compliant)
Functional Description
The TLE 7209-2R is an intelligent full H-Bridge, designed for the control of DC and
stepper motors in safety critical applications and under extreme environmental
conditions.
The H-Bridge is protected against over-temperature and short circuits and has an under
voltage lockout for all the supply voltages “
V
S
” (main DC power supply). All malfunctions
cause the output stages to go tristate.
The device is configurable by the DMS pin. When grounded, the device gives diagnostic
information via a simple error flag. When supplied with
V
CC
= 5 V, the device works in
SPI mode. In this mode, detailed failure diagnosis is available via the serial interface.
Type
TLE 7209-2R
Data Sheet
Package
PG-DSO-20-37, -65
1
Rev. 1.5, 2010-11-05
TLE 7209-2R
Circuit Description
2
2.1
Circuit Description
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.
1. Forward
2. Reverse
3. Free-wheeling low
4. Free-wheeling high
5. Disable
6. Enable
7. IN1 disconnected
8. IN2 disconnected
9. DIS disconnected
10. EN disconnected
11. Current limit. active
12. Under Voltage
13. Over-temperature
14. Over-current
1)
2)
Functional Truth Table
DIS EN
L
L
L
L
H
X
L
L
Z
X
L
X
X
X
H
H
H
H
X
L
H
H
X
Z
H
X
X
X
IN1 IN2 OUT1
H
L
L
H
X
X
Z
X
X
X
X
X
X
X
L
H
L
H
X
X
X
Z
X
X
X
X
X
X
H
L
L
H
Z
Z
H
X
Z
Z
Z
Z
Z
Z
OUT2 SF
1)
SPI
2)
DIA_REG
L
H
L
H
Z
Z
X
H
Z
Z
Z
Z
Z
Z
H
H
H
H
L
L
H
H
L
L
H
L
L
L
see
Chapter 2.4.2
If Mode “Status-Flag” is selected (see
Chapter 2.4)
If Mode “SPI-Diagnosis” is selected (see
Chapter 2.4)
Data Sheet
5
Rev. 1.5, 2010-11-05
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