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TLE6215G
Vehicle Stability ICs
Smart Two Channel Low-Side Switch
Features Product SummaryPower limitation· Overtemperature protectionOverload protection· Short circuit protectionDiagnostic feedback· Overvoltage protectionµC compatible input·
Electrostatic discharge (ESD) protection
ApplicationAll kinds of resistive and inductiveloads (relays,electromagnetic valves)µC compatible power switch· Solenoid control switch in automotive and industrial
control systems
General descriptionDouble channel Low-Side-Switch in Smart Power Technology (SPT) with
two seperate inputs and two open drain DMOS output stages. The TLE 6215 G is fully protected byembedded protection functions and designed for automotive and industrial applications.
Block DiagramVbb
Load 1
Load 2
Block Diagram of Open Load Detection
Maximum Ratings for Tj = – 40°C to 150°CVVAmA
K/W
Ambient thermal conditions Case = Pin 5 to 8 and 17 to 20.Additionally the pins not connected (N.C.) have to be connected to the ground plane used as
Pin Definitions and Functions Pin Configuration(top view)
Electrical Characteristics
1. Power Supply (VS)Supply current (Outputs ON) VS = 40 V
VS £ 18 V
2. Power Outputs
3. Digital Inputs (IN1, IN2, ENA)VµA
4. Digital Status Outputs (ST1, ST2), open Drain See timing diagram, resitive load condition; VS ³ 9 V This parameter will not be tested but assured by design
Electrical Characteristics
5. Diagnostic Functions
Application DescriptionThis IC is specially designed to drive inductive loads (relays, electromagnetic valves). Integrated
clamp-diodes limit the output voltage peak when switching off an inductive load.
For the detection of errors there are two status outputs, which monitor the following errors by logic
levels:thermal overload,open and short load to ground in active an inactive mode,- overloading of output (also shorted load to supply) in active mode.
Circuit Description
Input CircuitsThe control and enable inputs, all active high, consist of Schmitt triggers with hysteresis. All inputs areconnected with pull-down current sources. Not connected inputs are interpreted as "low“.
Switching StagesThe power outputs consist of a DMOS power transistor with open drain. The output stages are short-
load-protected throughout the operating range. Integrated clamp-diodes limit voltage spikes produced
when inductive loads are discharged.
Protective CircuitThe outputs are protected against current overload. There is no protection against reverse polarity of
the supply voltage.
VDSC is the output voltage of the other channel used for open load compare detection
