BTS7811KNT Infineon Technologies, BTS7811KNT Datasheet

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BTS7811KNT

Manufacturer Part Number
BTS7811KNT
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of BTS7811KNT

Switch Type
High Side/Low Side
Power Switch Family
BTS 7811K
Power Switch On Resistance
26/14Ohm
Number Of Outputs
4
Mounting
Surface Mount
Supply Current
8mA
Package Type
TO-263
Operating Temperature (min)
-40C
Operating Temperature (max)
150C
Operating Temperature Classification
Automotive
Pin Count
18
Lead Free Status / Rohs Status
Not Compliant
TrilithIC
Data Sheet
1
1.1
• Quad D-MOS switch
• Free configurable as bridge or quad-switch
• Optimized for DC motor management applications
• Low
• Maximum peak current: typ. 42 A @ 25 °C
• Very low quiescent current: typ. 4 µA @ 25 °C
• Small outline, thermal optimized PowerPak
• Load and GND-short-circuit-protection
• Operates up to 40 V
• Status flag for over temperature
• Open load detection in Off-mode
• Overtemperature shut down with hysteresis
• Internal clamp diodes
• PWM capability up to 25kHz
• Cross current free operation up to 13A load current (typ. value @ 12V/150°C)
• Under-voltage detection with hysteresis
Type
BTS 7811K
1.2
The BTS 7811K is part of the TrilithIC
One double high-side switch and two low-side switches. The drains of these three
vertical DMOS chips are mounted on separated leadframes. The sources are connected
to individual pins, so the BTS 7811K can be used in H-bridge- as well as in any other
configuration. The double high-side is manufactured in SMART SIPMOS
which combines low
protected high-side switch contains the control and diagnosis circuit. To achieve low
R
FET 2 logic level technology.
Data Sheet
DS ON
switch (typical values @ 25 °C)
and fast switching performance, the low-side switches are manufactured in S-
R
Features
Description
DS ON
Overview
: 26 mΩ high-side switch, 14 mΩ low-side
R
DS ON
vertical DMOS power stages with CMOS control circuit. The
Package
P-TO263-15-1
family containing three dies in one package:
1
P-TO263-15-1
Rev. 2.0, 2006-07-18
BTS 7811K
®
technology

Related parts for BTS7811KNT

BTS7811KNT Summary of contents

Page 1

... Description The BTS 7811K is part of the TrilithIC One double high-side switch and two low-side switches. The drains of these three vertical DMOS chips are mounted on separated leadframes. The sources are connected to individual pins, so the BTS 7811K can be used in H-bridge- as well as in any other configuration ...

Page 2

Pin Configuration (top view SL1 2 IL1 IH1 5 ST1 6 SH1 7 DHVS 8 GND 9 IH2 10 ST2 11 SH2 12 IL2 13 SL2 Figure 1: Pin Assignment Data ...

Page 3

... Not connected Source of low-side switch 1 Analog input of low-side switch 1 Not connected Digital input of high-side switch 1 Status of high-side switch 1; open Drain output Source of high-side switch 1 Drain of high-side switches and power supply voltage Ground of high-side switches Digital input of high-side switch 2 Status of high-side switch 2; open Drain output ...

Page 4

Functional Block Diagram 6 ST1 11 ST2 5 IH1 10 IH2 9 GND 3 IL1 13 IL2 Figure 2: Block Diagram Data Sheet DHVS 8, 17 Diagnosis Biasing and Protection Driver IN OUT ...

Page 5

... In order to use the open load detection a pull up resistor to 5V has to be connected to source of one of the high side switches. Because in ON condition this pull up resistor would connect the bridge output to the µC supply it needs to be disconnected by a transistor when the high side switch is Data Sheet R Power-MOS H-bridge ...

Page 6

... Set IH1 = IH2 = LOW (both high side switches off) • Set IL2 = LOW, IL1 = HIGH (only low side switch 1 is on) • Connect Rol (open load pull up via transistor If the load is connected properly it will pull down the voltage at SH2 to a value close to 0V. ...

Page 7

... Truthtable and Diagnosis (valid only for the High-Side-Switches) Flag Normal operation; identical with functional truth table Open load at high-side switch 1 Open load at high-side switch 2 Overtemperature high-side switch1 0 Overtemperature high-side switch2 X Overtemperature both high-side switches Undervoltage Note: * multiple simultaneous errors are not shown in this table ...

Page 8

... HS-drain current HS-input current HS-input voltage Note: * internally limited Status Output ST (Pins ST1 and ST2) Status pull up voltage Status Output current Low-Side-Switches (Pins DL1,2, IL1,2 and SL1,2) Drain- source break down voltage LS-drain current LS-drain current T = 85°C C LS-input voltage ...

Page 9

... ESD Protection (Human Body Model acc. MIL STD 883D, method 3015.7 and EOS/ ESD assn. standard S5.1 - 1993) Input LS-Switch Input HS-Switch Status HS-Switch Output LS and HS-Switch Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit. 3.2 Operating Range – ...

Page 10

... Supply current Leakage current of highside switch Leakage current through logic GND in free wheeling condition Current Consumption LS-switch Input current Leakage current of lowside switch Under Voltage Lockout (UVLO) HS-switch Switch-ON voltage Switch-OFF voltage Switch ON/OFF hysteresis Data Sheet T < 150 ° < j Symbol Limit Values min ...

Page 11

... Static path on-resistance Maximum load current for cross current free operation 7V; = 50Ω IL Gate Note: The device is regarded as cross current free if the reverse flowing charge through the high side switch is less than 1µ Figure 3: Start of Cross Conduction vs. ...

Page 12

... – 40 °C < SH1 SH2 SL1 SL2 unless otherwise specified Parameter Short Circuit of Highside Switch to GND Initial peak SC current 150µ del 12V DSH Note: Integrated protection functions are designed to prevent IC destruction under fault conditions. Protection functions are not designed for continuous or repetitive operation. ...

Page 13

... Parameter Status change after positive input slope with 1) overtemperature Status change after negative input slope with 1) overtemperature Open Load Detection in Off Condition Open Load Detection Voltage Switching Times of High Side Switch Turn-On-Time V to 90% SH Turn-Off-time V to 10% SH Slew Rate 30% SH ...

Page 14

... Gate Charge Characteristics 1) Input to source charge 1) Input to drain charge 1) Input charge total 1) Input plateau voltage Control Inputs of High Side Switches IH1, IH2 H-input voltage L-input voltage Input voltage hysterese H-input current L-input current Input series resistance Zener limit voltage Control Inputs IL1, IL2 ...

Page 15

I ST LK1 I ST1 ST1 I ST LK2 I ST2 ST2 V ST1 V STL1 I IH1 IH1 V V ST2 STZ1 V STL2 V I STZ2 IH1 IH2 V IH1 GND V IH2 I GND I LKCL I ...

Page 16

R Q 100 kΩ 100 kΩ ST1 kΩ ST2 kΩ IH1 5 IH2 10 GND 9 µP IL1 3 IL2 13 GND Figure 5: Application Circuit ...

Page 17

Package Outlines P-TO263-15-1 (Plastic Footprint Footprint Sorts of Packing You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/packages.. SMD = Surface Mounted Device Data Sheet 17 BTS 7811K Dimensions ...

Page 18

... Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system affect the safety or effectiveness of that device or system ...

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