ATA6140

Features:

• Temperature and Voltage Compensated Frequency (Fully Integrated Oscillator)
• Warning Indication of Lamp Failure by Means of Frequency Doubling
• Voltage Dependence of the Indicator Lamps also Compensated for Lamp Failure
• Relay Output with High Current Capability and Low Saturation Voltage
• Frequency Doubling only During Direction Mode
• Temperature Compensated Threshold for Lamp Failure Detection
• Overvoltage and Undervoltage Shut Down of the Relay Outputs
• Quiescent Current I 10 µA (Switches Open)
• EMI Protection According to ISO TR 7637/1, Test Level 4 (Exclusive Load Dump)
• Reversed Battery Protection by Means of a Serial Resistor and Relay Coil Connected
• Load Dump Protection 80 V with External Protection Components
• 12 V/24 V Application
• Package: SO16



Pinout




Specifications

Parameters	Symbol	Value	Unit
Supply voltage, pin 6 VVS 6 to 40 V	VVS	6 to 40	V
Ambient temperature range	Tamb	-40 to +105	°C
Junction temperature	TJ	-40 to +150	°C
Storage temperature range	Tstg	-55 to +150	°C

Description

The integrated circuit ATA6140 is used in relay-controlled automotive flashers. With two output stages, each side of the vehicle is controlled separately. A left and a right direction indicator input with only a small control current makes switch contacts for small loads possible. The separate hazard warning input simplifies the construction of the hazard switch. Lamp outage is indicated by frequency doubling during direction mode. Thanks to the extreme low current consumption the ATA6140 can be connected to the battery directly.