4-A DC Motor Driver |
TLE 4203 |
Overview |
Bipolar IC |
Features
•Integrated free-wheeling diodes
•Outputs short-circuit proof to VS and ground
•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 |
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TLE 4203 |
Q67000-A8121 |
P-TO220-7-1 |
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TLE 4203 S |
Q67000-A9101 |
P-TO220-7-2 |
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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-wheeling diodes.
Typical applications are for follow-up control, servo drives, servo motors, drive mechanisms, etc.
Semiconductor Group |
1 |
1998-02-01 |
TLE 4203
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2 |
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6 |
7 |
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VS1 |
GND |
VS2 |
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IST1 Q1 |
Q2 |
IST2 |
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AEP00618 |
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Figure 1 |
Pin Configuration (top view) |
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Pin Definition and Functions |
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Pin No. |
Symbol |
Function |
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1 |
IST1 |
Control input for channel 1 (TTL/CMOS-compatible), of |
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non-inverting effect on the channel output. |
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2 |
VS1 |
Channel 1 supply voltage; externally connected with the |
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supply voltage pin for channel 2 (pin 6). |
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3 |
Q1 |
Short-circuit protected push-pull C output channel 1 for |
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currents up to 6 A. Free-wheeling diodes are integrated on |
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chip for inductive loads. |
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4 |
GND 1, 2 |
Ground; track should be designed for the max. short-circuit |
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current (2 x 6 A). |
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5 |
Q2 |
Short-circuit protected push-pull C output channel 2 for |
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currents up to 6 A. Free-wheeling diodes are integrated on |
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chip for inductive loads. |
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6 |
VS2 |
Channel 2 supply voltage; externally connected with the |
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supply voltage pin for channel 1 (pin 2). |
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7 |
IST2 |
Control input for channel 2 (TTL/CMOS-compatible), of |
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non-inverting effect on the channel output. |
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Semiconductor Group |
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2 |
1998-02-01 |
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TLE 4203
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Supply Voltage VS |
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2 |
6 |
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Protection |
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Circuit 1 |
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Control |
1 |
3 |
Output 1 |
Input 1 |
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Control |
7 |
5 |
Output 2 |
Input 2 |
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Protection |
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Circuit 2 |
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4 |
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GND |
AEB00628 |
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Figure 2 Block Diagram
Semiconductor Group |
3 |
1998-02-01 |
TLE 4203
Application
In industrial and automotive electronics, power full-bridge DC motor drivers are mostly used for bidirectional motor drives. The two TTL and CMOS-compatible control inputs act on the output as follows:
Status |
Input 1 |
Input 2 |
Output 1 |
Output 2 |
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1 |
L |
L |
VQL |
VQL |
2 |
L |
H |
VQL |
VQH |
3 |
H |
L |
VQH |
VQL |
4 |
H |
H |
VQH |
VQH |
VQL means: Lower power unit conducting; upper power unit blocked. VQH means: Upper power unit conducting; lower power unit blocked.
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
Semiconductor Group |
4 |
1998-02-01 |
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