NTE1635 Datasheet | NTE Electronics

Description : The NTE1635 is a monolithic integrated circuit in an 8- Lead SIP type package designed for use in protecting power amplifiers and speakers in various amplifier and receiver applications. Features : D Built- In Relay Driver D Single Power Source D Wide Operating Supply Range: 25V to 60V D Plus and Minus Voltage using One Pin (Both Pin3 and Pin4 Posses the Same Functions and Detect Plus and Minus Voltage) D AC Voltage Detector (Pin5) D Circuit Protection by Plus Voltage Detection is Provided by Connecting D1 Diode Externally (Pin6) D Relay- On Lag Time Adjustable by External Applications D Short Relay- Off Time (25ms Typ Under the Standard External Applications) Typical Applications: D For Speaker Protection, use Pin3 (or Pin4) to Detect Setoff of Quiescent Output DC Voltage and to Turn the Relay Off D For Power Amplifier Protection, use Pin3 (or Pin4) with an External Thermo- Sensitive Device to Detect the Temperature Increase and to Turn the Relay Off D Power Amplifier can be Protected by Detecting Overload and Turning the Relay Off with Pin6 D In case of Overload Detection by Constant- Current or by Constant- Voltage Drive using an External Diode D1, the Latch Mechanism keeps the Relay On until the Power is Switched Off D For Prevention of Pop Noise at Power Off use Pin5. AC Voltage Disappeance is Immediately Detected when the Amp’s Switch has been Off. This Minimizes the Relay- Off Time and thus can Prevent Pop Noise Generated by Mute- Off Time Lag Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Total Power Disipation (TA = +70°C), PT - - - - - - - - . . . 400m W Operating Temperature Range, Topr - - - - - - - - . - 20° to +70°C Storage Temperature Range, Tstg - - - - - - - - . . - 55° to +125°C Supply Voltage (Pin1), VCC(max) - - -...