Siemens TLE4203S, TLE4203 Datasheet
4-A DC Motor Driver
TLE 4203
Overview Bipolar IC
Features
• Integrated free-wheeling diodes
V
• Outputs short-circuit proof to
and ground
S
• Thermal overload protection
• Blocking of the output stages upon undervoltage
• Final push-pull stage free of cross-over
P-TO220-7-1
P-TO220-7-2
Type Ordering Code Package
TLE 4203 Q67000-A8121 P-TO220-7-1
TLE 4203 S Q67000-A9101 P-TO220-7-2
Description
The integrated circuit TLE 4203 is a versatile double power driver of up to 4 A output
current which is particularly suitable as a driver for DC motors in reversible operation.
The push-pull power output stages operate in the switching mode and can be combined
to a full-bridge configuration.
The drive of the input stage is implemented using digital logic.
The device contains a temperature protection logic, output stages protected against
short-circuit and integrated free-wheel ing dio des .
Typical applications are for follow-up control, servo drives, servo motors, drive
mechanisms, etc.
Semiconductor Group 1 1998-02-01
TLE 4203
.
4321567
GND
V
S1 S2
IST1 Q1
V
Q2 IST2
AEP00618
Figure 1 Pin Configuration (top view)
Pin Definition and Functions
Pin No. Symbol Function
1IST1Control input for channel 1 (TTL/CMOS-compatible), of
non-inverting effect on the channel output.
2
V
S1
Channel 1 supply voltage; externally connected with the
supply voltage pin for channel 2 (pin 6).
3Q1Short-circuit protected push-pull C output channel 1 for
currents up to 6 A. Free-wheeling diodes are integrated on
chip for inductive loads.
4GND 1, 2Ground; track should be designed for the max. short-circuit
current (2 x 6 A).
5Q2Short-circuit protected push-pull C output channel 2 for
currents up to 6 A. Free-wheeling diodes are integrated on
chip for inductive loads.
6
V
S2
Channel 2 supply voltage; externally connected with the
supply voltage pin for channel 1 (pin 2).
7IST2Control input for channel 2 (TTL/CMOS-comp ati ble), of
non-inverting effect on the channel output.
Semiconductor Group 2 1998-02-01
TLE 4203
Control
Input 1
Control
Input 2
1
7
Protection
Circuit 1
Protection
Circuit 2
Supply Voltage
2
V
6
S
3
Output 1
5
Output 2
Figure 2 Block Diagram
4
GND
AEB00628
Semiconductor Group 3 1998-02-01
TLE 4203
Application
In industrial and automotive electronics, power ful l-bridge DC motor dri vers are mostly
used for bidirectional motor drives. The two TTL and CMOS-compatible control inp uts
act on the output as follows:
Status Input 1 Input 2 Output 1 Output 2
1LL
2LHV
3HLV
4HHV
V
means: Lower power unit conducting; upper power unit blocked.
QL
V
means: Upper power unit conducting; lower power unit blocked.
QH
V
QL
QL
QH
QH
The following examples illustrate the operation:
Status 1: Motor is slowed down
Status 2: Motor turns right
Status 3: Motor turns left
Status 4: Motor is slowed down
V
V
V
V
QL
QH
QL
QH
Semiconductor Group 4 1998-02-01
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