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TLS850F2TA V50 英飞凌芯片 INFINEON 中文版规格书手册.pdf
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TLS850F2TA V50 英飞凌芯片 INFINEON 中文版规格书手册
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Data Sheet Rev. 1.0
www.infineon.com/OPTIREG-Linear 1 2018-09-06
OPTIREG™ Linear TLS850F2TAV50
Low Dropout Linear Voltage Regulator
Features
• Wide input voltage range from 3.0 V to 40 V
• Fixed output voltage 5 V
• Output voltage precision ≤ ±2 %
• Output current capability up to 500 mA
• Ultra low current consumption typ. 40 µA
• Very low dropout voltage typ. 70 mV@100 mA
• Stable with ceramic output capacitor of 1 µF
• Delayed reset at power-on: 16.5 ms
• Adjustable reset threshold down to 2.50 V
• Watchdog with fixed timing: 96 ms
• Enable, undervoltage reset, overtemperature shutdown
• Output current limitation
• Wide temperature range
• Green product (RoHS compliant)
Potential applications
• Automotive general ECUs
• Dahsboard and cluster supplies
• Powertrain and EPS applications
• Microcontroller supply for safety applications
Product validation
Qualified for automotive applications. Product validation according to AEC-Q100/101.
Description
The OPTIREG™ Linear TLS850F2TAV50 is a high performance very low dropout linear voltage regulator for 5 V
supply in a PG-TO263-7 package.
With an input voltage range of 3 V to 40 V and very low quiescent of only 40 µA, these regulators are perfectly
suitable for automotive or any other supply systems connected to the battery permanently. The
TLS850F2TAV50 provides an output voltage accuracy of 2 % and a maximum output current up to 500 mA.
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Data Sheet 2 Rev. 1.0
2018-09-06
OPTIREG™ Linear TLS850F2TAV50
Low Dropout Linear Voltage Regulator
The new loop concept combines fast regulation and very good stability while requiring only one small ceramic
capacitor of 1 µF at the output. At currents below 100 mA the device will have a very low typical dropout
voltage of only 70 mV. The operating range starts already at input voltages of only 3 V (extended operating
range). This makes the TLS850F2TAV50 also suitable to supply automotive systems that need to operate
during cranking condition.
The device can be switched on and off by the enable feature as described in Chapter 4.5.
The output voltage is supervised by the reset feature, including undervoltage reset, delayed reset at power-on
and an adjustable lower reset threshold, more details can be found in Chapter 4.7.
In addition, a watchdog circuit with fixed timing is integrated to monitor the microcontroller‘s operation.
Internal protection features like output current limitation and overtemperature shutdown are implemented
to protect the device against immediate damage due to failures like output short circuit to GND, over-current
and over-temperatures.
External components
An input capacitor C
I
is recommended to compensate line influences. The output capacitor C
Q
is necessary for
the stability of the regulating circuit. TLS850F2TAV50 is designed to be also stable with low ESR ceramic
capacitors.
Type Package Marking
TLS850F2TAV50 PG-TO263-7 850F2V50
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Data Sheet 3 Rev. 1.0
2018-09-06
OPTIREG™ Linear TLS850F2TAV50
Low Dropout Linear Voltage Regulator
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Pin assignment TLS850F2TAV50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Pin definitions and functions TLS850F2TAV50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Block description and electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Voltage regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Typical performance characteristics voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Typical performance characteristics current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5 Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.6 Typical performance characteristics enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.8 Typical performance characteristics reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.9 Standard watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.10 Typical performance characteristics standard watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2 Selection of external components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2.1 Input pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2.2 Output pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.3 Thermal considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.4 Reverse polarity protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.5 Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table of contents
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Data Sheet 4 Rev. 1.0
2018-09-06
OPTIREG™ Linear TLS850F2TAV50
Low Dropout Linear Voltage Regulator
Block diagram
1 Block diagram
Figure 1 Block diagram TLS850F2TAV50
Bandgap
Reference
GND
Q
I
Temperature
Shutdown
EN
Enable
Reset
RO/WO
RADJ
Watchdog
WI
Current
Limitation
![](https://csdnimg.cn/release/download_crawler_static/88008553/bg5.jpg)
Data Sheet 5 Rev. 1.0
2018-09-06
OPTIREG™ Linear TLS850F2TAV50
Low Dropout Linear Voltage Regulator
Pin configuration
2 Pin configuration
2.1 Pin assignment TLS850F2TAV50
Figure 2 Pin configuration
2.2 Pin definitions and functions TLS850F2TAV50
Pin Symbol Function
1I Input
It is recommended to place a small ceramic capacitor (e.g. 100 nF) to GND, close
to the IC terminals, in order to compensate line influences. See also Chapter 5.2.1
2EN Enable (integrated pull-down resistor)
Enable the IC with high level input signal;
Disable the IC with low level input signal;
3RO/WO Reset output / watchdog output (intergrated pull-up resistor to Q)
Open collector output;
Leave open if the reset and watchdog function are not needed
4GND Ground
5RADJ Reset threshold adjustment
Connect to GND to use standard value;
Connect an external voltage divider to adjust reset threshold
6WI Watchdog input (integrated pull-down resistor)
Serve Watchdog with trigger input signal (usable for microcontroller monitoring)
7Q Output voltage
Connect output capacitor C
Q
to GND close to the IC’s terminals, respecting the
values specified for its capacitance and ESR in “Functional range” on Page 7
Heat
Slug
– Heat slug
Connect to heatsink area;
Connect to GND
12345 76
I
EN
RO/WO
GND
RADJ
WI
Q
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