DEMOBOARD TLE 7209-2R Infineon Technologies, DEMOBOARD TLE 7209-2R Datasheet - Page 6

• Manufacturer Part Number: DEMOBOARD TLE 7209-2R
• Description: BOARD DEMO FOR TLE 7209-2R
• Manufacturer: Infineon Technologies

Specifications of DEMOBOARD TLE 7209-2R

• Main Purpose: Power Management, Motor Control
• Embedded: No
• Utilized Ic / Part: TLE7209-2R
• Primary Attributes: 1 H-Bridge Driver
• Secondary Attributes: Short-Circuit, Thermal & Undervoltage Protection
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DEMOBOARDTLE7209-2RIN

2.2
Four n-channel power-DMOS transistors build up the output H-bridge. Integrated circuits
protect the outputs against over current and over-temperature if there is a short-circuit to
ground, to the supply voltage or across the load. Positive and negative voltage spikes,
which occur when switching inductive loads, are limited by integrated freewheeling
diodes. To drive the gates of the high-side DMOS, an internal charge pump is integrated
to generate a voltage higher than the supply voltage.
2.2.1
To limit the output current at low power loss, a chopper current limitation is integrated as
shown in Figure 3. The current is measured by sense cells integrated in the low-side
switches. When the current limit
switched off for a fixed time
Figure 3
Final Datasheet
Power Stages
Chopper Current Limitation
Chopper current limitation
Blanking time t
t
a
.
I
L
has been exceeded for a time
Switch-off time t
b
6
a
Current limit I
t
b
, all output stages are
time
Circuit Description
V1.3, 2005-jan-11
TLE 7209-2R
L