Siemens TLE5207G, TLE5207 Datasheet
5-A DC Motor Driver with Inhibit
Overview
Features
• Output current ± 4 A (peak 5 A)
• Inhibit with very low quiescent current (typ. 20 µA)
• I/O error diagnostics
• Short-circuit proof
• Four-quadrant operation
• Integrated free-wheeling diodes
• Wide temperature range
TLE 5207
P-TO220-7-1
P-TO220-7-8
Type Ordering Code Package
TLE 5207 Q67000-A9295 P-TO220-7-1
TLE 5207G Q67006-A9296 P-TO220-7-8
Description
TLE 5207 is an integrated power bridge with inhibit feature and 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 restricted to the capacitors on the supply voltage.
The two control inputs have TTL/CMOS-compatible levels.
Semiconductor Group 1 1998-02-01
TLE 5207 TLE 5207G
4321567
TLE 5207
EF
Q1
Ι
GND
1
Ι
2
V
S
Q2
AEP01224
Figure 1 Pin Configuration (top view)
Pin Definitions and Functions
Pin 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)
3I1Control input 1; TTL/CMOS-compatible
4GNDGround; connected internally to cooling fin
5I2Control 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 5207
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.In case of low potential at both inputs
the device is switched in inhibit-condition with very low current consumption.
Output Stages
The output stages from a switched H-bridge. Protective circuits make the outputs shortcircuit proof from gro und up to a supply vol tage of 16 V. Positive and negative vo ltage
spikes, which occur when switching inductive loads, are limited by integrated power
diodes.
Monitoring and Protective Functions
An internal circuit ensures that all output transistors are turned-OFF if the supply voltage
is below the operating range.
Functional Truth Table
I1 I2 Q1 Q2 Comments
L L Z Z Device in inhibit condition with very low current
consumption; outputs in tristate condition (high impedance)
L H L H Motor turns clockwise
H L H L Motor turns counterclockwise
H H H H Motor 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
Z High side transistor and Low side transistor are turned-OFF
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 operation (source operation). This effectively guards against
crossover currents. 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.
Semiconductor Group 3 1998-02-01
TLE 5207
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.
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 ty p 11 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.
, ground or across the load are detected. All faults
S
At a junction temperature higher than 160 °C the thermal shutdo wn turns-OFF, all fou r
output stages commonly and the error flag is set without a delay.
Diagnosis
Input Output Diagnosis EF
V
I1 I2 Q1 Q2 Shorted to GND Shorted to
Overload
S
L L Z Z Q1, Q2 Q1, Q2 –H
L H L H Q2 Q1 X L
H L H L Q1 Q2 X L
H H H H Q1, Q2 – – L
Semiconductor Group 4 1998-02-01
TLE 5207
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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