INFINEON Q67000

Intelligent Sixfold Low-Side Switch
TLE 4226 G
Bipolar-IC
Features
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Quad 50 mA outputs
Dual 500 mA outputs
Operating range VS = 5 V ± 5 %
Output stages with power limiting
Open-collector outputs
Shorted load protected within operating range
Clamp-diodes to ground
Status signaling
TTL-compatible control inputs
Overtemperature monitoring
Temperature range – 40 to 125 ˚C
Type
▼ TLE 4226 G
▼ New type
P-DSO-24-3
Ordering Code
Package
Q67000-A9118
P-DSO-24-3 (SMD)
TLE 4226 G is an integrated, sixfold low-side power switch with power limiting of the 0.5 A outputs,
shorted-load protection of the 50 mA switches and Z-diodes on all switches from output to ground.
TLE 4226 G is particularly suitable for automotive and industrial applications.
Semiconductor Group
1
07.96
TLE 4226 G
Pin Configuration
(top view)
Pin Definitions and Functions
Pin
Symbol
Function
1
IN1
Input switch 1, active high (50 mA)
2
IN2
Input switch 2, active high (50 mA)
3
IN3
Input switch 3, active high (50 mA)
4
IN4
Input switch 4, active high (50 mA)
5, 6, 7, 8
GND
Ground, cooling
9
IN5
Input switch 5, active high (500 mA)
10
IN6
Input switch 6, active high (500 mA)
11
StA
Status output analog
12
StD
Status output digital (error = low)
13
VS
Supply voltage
14
PREFST
Preferred state input, active low
15
Q6
Output switch 6 (500 mA)
16
Q5
Output switch 5 (500 mA)
17, 18, 19, 20
GND
Ground, cooling
21
Q4
Output switch 4 (50 mA)
22
Q3
Output switch 3 (50 mA)
23
Q2
Output switch 2 (50 mA)
24
Q1
Output switch 1 (50 mA)
Semiconductor Group
2
TLE 4226 G
Block Diagram
Semiconductor Group
3
TLE 4226 G
Application Description
Applications in automotive electronics call for intelligent power switches that can be activated by
logic signals, which have to be shorted load protected and which provide error feedback.
This IC contains six power switches connected to ground (low-side switches). On inductive loads
the integrated Z-diodes clamp the discharging voltage.
By means of TTL signals on the control inputs (active high) all six switches can be activated
independently of one another when a high level appears on the preferred-state input. When there
is a low level on the preferred-state input, switches 1 to 4 are switched on, switches 5 and 6 are
switched off regardless of the control-input levels. The inputs are highly resistive and therefore must
not be left unconnected but should always be on fixed potential (noise immunity). Inputs that are not
used, should be connected to low level to reduce the power consumption.
The analog status output signals the following errors by analog voltage levels:
– Overload
– Thermal overload
– Openload or shorted load to ground (only switches 5 and 6)
The following levels signal errors at the analog and digital status outputs.
Errors
Analog Status
Digital Status
Normal function
Low
High
Overload
1.0 V to 3.3 V
Openload or shorted load to ground (only switches 5 and 6) 1.0 V to 1.7 V
Thermal overload
> 3.5 V
Low
Low
Low
Possible Input and Output Levels
Supply Voltage VS
PREFST
IN1-6
Q1-Q4
Q5, Q6
2 to 5 V
5V
5V
Low
High
High
Random
Low
High
Low
High
Low
High
High
Low
Semiconductor Group
4
TLE 4226 G
Circuit Description
Input Circuits
The control inputs and the preferred-state input consist of TTL-compatible Schmitt triggers with
hysteresis. Driven by these stages the buffer amplifiers convert the logic signal necessary for driving
the NPN power transistors.
Switching Stages
The output stages consist of NPN power transistors with open collectors. Each stage has its own
protective circuit for limiting power dissipation and shorted load current, which makes the outputs
shorted load protected to the supply voltage throughout the operating range. Integrated clampdiodes limit positive voltage spikes that occur when inductive loads are discharged. Output currents,
caused through negative voltages at the outputs, are compensated up to 50 mA for all outputs in
total.
Monitoring and Protective Functions
Each output is monitored (for overload) in its activated status. For the switches 1 to 4 overload is
detected, if the switches are activated and the output voltage at the transistor is higher than 4.1 V
for more than 10 µs. The concerned output will be shutdown and both status outputs will be set. The
switch can only be activated again if the corresponding input is switched off and then on again. If
the output voltage does not exide 4.1 V, the output is not shutdown and the status outputs are not
set, although an overload may occur. The switches 5 and 6 are protected through a SOA-circuit. It
is suppressed for at least 10 µs when the switch is turned on before it can start limiting the overload
current. The status outputs also monitor openload or shorted load to ground at the switches 5 and
6 in deactivated mode.
An analog signal is applied to the analog status output only when protection function is active. If
several malfunctions appear coincident, the highest voltage level of the analog status output will
dominate. Simultaniously the digital status output will be set.
The IC is also protected against thermal overload. If a chip temperature of typically 155 ˚C is
attained, the status outputs monitor overtemperature. If the temperature continues to increase, the
inputs and outputs of the switches 5 and 6 are shutdown. The switches 1 to 4 will not shutdown, so
precaution has to be taken in the application to prevent a further increase of the chiptemperature,
which may destroy the IC. After cooling down below 140 ˚C the overtemperature monitoring will be
reseted and the outputs of the switches 5 and 6 can be activated again.
If the minimum supply voltage for operation is not maintained, the outputs are deactivated. At a
supply voltage of higher than 1.8 V, the outputs 1 to 4 are switched on, if pin 14 (PREFST) is
connected to ground over a resistance smaller 1 MΩ. The outputs 1 to 4 can be controlled via the
inputs, if pin 14 (PREFST) is switched to high or not connected. Characteristics may be beyond the
specified values. Full function is guaranteed in the supply voltage range of 5 V ± 5 %.
Semiconductor Group
5
TLE 4226 G
Absolute Maximum Ratings
Tj = – 40 to 150 ˚C
Parameter
Symbol
Limit Values
min.
max.
–1
– 0.7
– 0.7
10
25
20
Unit
Remarks
Voltages
Supply voltage
Supply voltage load circuit
Input voltage
VS
VQ1-6
VIN1-6 , VPREFST
V
V
V
Currents
Output current
IQ1-6
Current at reverse poling
Current at reverse poling
Clamping current
Clamping current
IQ5-6
IQ1-4
IQZ5-6
IQZ1-4
– 500
– 50
Junction temperature
Tj
Storage temperature
limited internally
700
70
mA
mA
mA
mA
– 40
150
˚C
Tstg
– 55
125
˚C
VS
VS
4.75
4
5.25
V
Output voltage
VQ
– 0.3
24
V
Ambient temperature
TA
– 40
110
˚C
Invert current for Q1-6 in total
Isup
50
Input voltage
VIN
– 0.5
Thermal resistance
junction to case
junction to ambient
Rth JC
Rth JA
see diagram
Overtemperature
protection shuts down
the switches 5 and 6
at 165 ˚C
Operating Range
Supply voltage
full function, but status
outputs cannot be
evaluated
Tj ≤ 150 ˚C
mA
15
V
15
65
K/W
K/W
1)
1) Pins 5 to 8 and 17 to 20 have to be connected to the ground-plane used as thermal heatsink to achieve the
optimum thermal resistance.
Semiconductor Group
6
TLE 4226 G
Characteristics
VS = 5 V, unless stated otherwise; Tj = – 40 to 140 ˚C
Parameter
Symbol
Limit Values
min.
Unit
Test Condition
typ.
max.
8
50
11
65
mA
mA
Outputs OFF
Outputs ON
1.8
1.2
0.6
2.1
1.5
1.0
3
1
3
V
V
V
µA
µA
µA
0.9 V < VI < 6 V
0.2 V < VI < 0.9 V
0 V < VI < 6 V; VS = 0 V
mA
VS = 2 V and resistance from
Supply Voltage (VS)
Quiescent current
Supply Current
IS
IS
Inputs (IN1-6, PREFST)
VIH
VIL
∆VI
IIH
IIL
II
1.3
0.9
0.3
–2
– 10
–2
Load Current
IQ1-4
50
Saturation voltage
Saturation voltage
Saturation voltage
Compare voltage
Turn-ON delay time
Turn-OFF delay time
VQSat5, 6
VQSat1-4
VQSat1-4
Vcom
tDON
tDOFF
4.1
0.2
0.2
1
2
Monitoring threshold
Shutdown threshold
hysteresis
TthSt
Ttho
150
5
155
10
Reset threshold
TthRes
140
H-input voltage
L-input voltage
Hysteresis
H-Input current
L-Input current
Input current
Power Outputs (Q1-6)
0.5
0.4
0.8
0.6
0.22
4.7
1.5
3.5
V
V
V
V
µs
µs
PREFST to ground < 1 MΩ
IQ = 0.4 A; output ON
IQ = 50 mA; output ON
IQ = 20 mA; output ON
see diagrams
20 mA < IQ1-4 < 50 mA,
200 mA < IQ5,6 < 500 mA
Overtemp. Protection
Semiconductor Group
150
7
˚C
K
only switches 5 and 6
are shut down
˚C
after shutdown
TLE 4226 G
Characteristics (cont’d)
VS = 5 V, unless stated otherwise; Tj = – 40 to 140 ˚C
Parameter
Symbol
Limit Values
min.
typ.
Unit
Test Condition
max.
Outputs (Q1-6)
Clamping voltage
Clamping voltage
VQ1-4
VQ5, 6
25.5
25.5
33
35
V
V
IQ = 50 mA
IQ = 500 mA
Shorted load current
Shorted load current
Sink current
Shutdown threshold
Leakage current
IQ1-4 max
IQ5, 6
IQ5, 6
60
500
2
170
900
10
mA
mA
µA
VQ < 16.5 V
VQ ≤ 10 V; Tj ≤ 130 ˚C
VQ = 5 V
IQ1-4
1
µA
Leakage current
IQ5, 6
200
µA
switches off, VQ = 24 V
Tj = 125 ˚C
switches off, VQ = 16.5 V
Tj = 125 ˚C
0.5
1.3
1.7
2.1
2.5
2.9
3.3
V
V
V
V
V
V
V
V
250
Ω
– IQStA = 50 ... 100 µA
30
µs
30
µs
overload at switches 5 and 6
switches 5 and 6 during turn
on
30
0.4
kΩ
V
IStD = 4 mA
Status Output Analog (StA)
Normal function
Error output 6
Error output 5
Overload output 4
Overload output 3
Overload output 2
Overload output 1
Thermal overload
VStA
VStA
VStA
VStA
VStA
VStA
VStA
VStA
1.0
1.4
1.8
2.2
2.6
3.0
3.5
Source resistance of
analog status output
RQStA
30
Delay time of status
tdStA/D
10
Delay time of output
protection
tdSQ1-6
10
15
Status Output Digital (StD)
Pull-up resistance
Saturation voltage
Semiconductor Group
RStD
VStDSat
10
20
8
TLE 4226 G
Test Circuit
S1 in position 1: all outputs can be activated (position 1) or deactivated (position 2) by S2
S1 in position 2: preferred state
Semiconductor Group
9
TLE 4226 G
Application Circuit
*) The capacitance depends on the inductance and current load of the supply.
Semiconductor Group
10
TLE 4226 G
Permissible Load Inductance versus Load
Current
Shorted Load Current IQ5, 6 versus Output
Voltage (Outputs 5 and 6)
Note:
While switching the maximum inductive loads, the maximum temperature Tj of 150 ˚C may be briefly exceeded.
The IC will not be destroyed by this, but the restrictions concerning useful life should be observed.
Semiconductor Group
11
TLE 4226 G
Timing Diagrams
Signals of Inputs and Outputs of Switches 1 to 6
Normal Function (no Error)
Semiconductor Group
12
TLE 4226 G
Signals of Inputs and Outputs of Switches 1 to 4
Shorted Load to Supply Voltage of Load Circuit
Signals of Inputs and Outputs of Switches 5 and 6
Shorted Load to Supply Voltage of Load Circuit
Semiconductor Group
13
TLE 4226 G
Signals of Inputs and Outputs of Switches 5 and 6
Shorted Load to Ground
Semiconductor Group
14
TLE 4226 G
Package Outlines
GPS05144
P-DSO-24-3
(Plastic Dual Small Outline Package)
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”.
SMD = Surface Mounted Device
Semiconductor Group
15
Dimensions in mm