Siemens TLE5204, TLE5204G Datasheet
3-A DC Motor Driver
TLE 5204
Overview SPT IC
Features
• Output current ± 3 A
• I/O error diagnostics
• Short-circuit proof
• Four-quadrant operation
• Integrated free-wheeling diodes
• Wide temperature range
• Break low and break high, if open load detectio n is
required, the device TLE 5203 will fit
P-TO220-7-1
1)
P-TO220-7-8
Type Ordering Code Package
TLE 5204 Q67000-A9177 P-TO220-7-1
TLE 5204 G Q67006-A9234 P-TO220-7-8
Description
TLE 5204 is an integrated power bridge with DMOS output stages for driving DC motors.
This motor bridge is optimized for driving DC motors in reversible operation. The internal
protective circuitry in particular ensures that no crossover currents can occur.
Because the free-wheeling diodes are integrated, the external circuitry that is necessary
is reduced to the capacitors on the supply voltage.
The control inputs have TTL/CMOS-compatible levels.
1)
SIEMENS Power Technology
Semiconductor Group 1 1998-02-01
TLE 5204
TLE 5204 TLE 5204 G
4321567
EF
Q1
Ι
GND
1
Ι
2
V
S
Q2
AEP01224
Figure 1 Pin Configuration (top view)
Pin Definitions and Functions
Pin No. Symbol Function
1Q1Output of channel 1; Short-circuit proof, free-wheeling
diodes integrated for inductive loads
2EFError flag; TTL/CMOS-compatible output for error detection
(open drain)
3 I1 Control input 1; TTL/CMOS-compatible
4GNDGround; connected internally to cooling fin
5 I2 Control input 2; TTL/CMOS-compatible
6
V
S
Supply voltage; wire with capacitor matching load
7Q2Output of channel 2; Short-circuit proof, free-wheeling
diodes integrated for inductive loads
Semiconductor Group 2 1998-02-01
TLE 5204
Circuit Description
Input Circuit
The control inputs consist of TTL/CMOS-compatible Schmitt triggers with hysteresis.
Buffer amplifiers are driven by these stages and convert the logic signal into the
necessary form for driving the power output stages.
Output Stages
The output stages form a switched H-bridge. Protective circuits make the outputs shortcircuit proof to ground and to the supply voltage throughout the operating range. Positive
and negative voltage s pikes, wh ich occur when switchin g inductive loads, are clamped
by integrated power diodes.
Functional Truth Table
E1 E2 Q1 Q2 Comments
L LLLMotor brake; both low side transistors turned-ON
L H L H Motor turns clockwise
H L H L Motor turns counterclockwise
H HHHMotor brake; both high side transistors turned-ON
Notes for Output Stage
Symbol Value
L Low side transistor is turned-ON
High side transistor is turned-OFF
H High side transistor is turned-ON
Low side transistor is turned-OFF
Semiconductor Group 3 1998-02-01
TLE 5204
Monitoring Functions
An internal circuit ensures that all output transistors are turned-OFF if the supply voltage
is below the operating range.
A monitoring circuit for each output transistor detects whether the particular transistor is
active and in this case prevents the corresponding source transistor (sink transistor) from
conducting in sink operat ion (source operation). Therefore no crossover currents can
occur. Pulse-width operation is possible up to a maximum switching frequency of 1 kHz
for any load.
Depending on the load current higher frequencies are possible.
Protective Function
V
Various errors like short-circuit to +
result in turn-OFF of the output stages after a delay of 40 µs and setting of the error flag
EF to ground. Changing the inputs resets the error flag.
, ground or across the load are detected. All faults
S
Output Shorted to Ground Detection
If a high side transistor is switched on and its output is shorted to ground, the output
current is limited to typ 8 A. After a delay of 40 µs all outputs will be switched off and the
error flag EF is set to ground.
V
Output Shorted to +
and Overload Detection
S
An internal circuit detects if the current through the low side transistor is higher than 4 A
typ. In this case all outputs are turned-OFF after 40 µs and the error flag is set to ground.
At a junction temperature hi gher than 160 °C the thermal shutdow n turns-OFF, all four
output stages commonly and the error flag is set without a delay.
Diagnosis
Input Output Diagnosis EF
E1 E2 Q1 Q2 Shorted
to GND
Shorted
V
to
S
Overload
LLLL–Q1, Q2–L
L H L H Q2 Q1 X L
H L H L Q1 Q2 X L
HHHHQ1, Q2––L
Semiconductor Group 4 1998-02-01
TLE 5204
Control Input 1
Control Input 2
3
5
Protection
Circuit 1
Protection
Circuit 1
Error Flag
2
Error
Flag
V
S
6
1
Output 1
7
Output 2
4
GND
AEB01225
Figure 2 Block Diagram
Semiconductor Group 5 1998-02-01
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