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NTE1635

Integrated Circuit Speaker Protector/Voltage/Temperature/Overload

NTE Electronics 

Absolute Maximum Ratings (Cont’d): (TA = +25°C unless otherwise specified)

Supply Current (Pin3, Note 1), I3(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3mA

Supply Current (Pin4, Note 1), I4(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3mA

Supply Voltage (Pin5), V5(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10V

Supply Current (Pin6), I6(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3mA

Supply Voltage (Pin7, Note 2), V7(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V

Supply Current (Pin7, Note 2), I7(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25mA

Supply Voltage (Pin8), V8(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Less than Pin7

Supply Current (Peak, Pin8), I8(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA

Note 1. Positive current denotes input current at Pin3 and Pin4, Negative current denotes output current

Note 2. V7(max) = 8V is derived when driven by a constant voltage source without any resistance.

When applying current to V7 throught a resistance VCC the maximum value of input current

to Pin7 should be used instead of the above values.

Electrical Characteristics: (VCC = +45V unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Threshold Voltage at Pin3,

Positive Side

+Vth(3) Apply positive voltage to Pin3 through an ex- 0.89 1.20 1.61 V

ternal resistance (56kΩ). Measure Pin3 volt-

age while Pin1 voltage changes from low (1V)

to high (45V) during the above process.

Threshold Voltage at Pin3,

Negative Side

–Vth(3) Apply negative voltage to Pin3 through an ex- –1.86 –1.20 –0.84 V

ternal resistance (56kΩ). Measure Pin3 volt-

age while Pin1 voltage changes from low (1V)

to high (45V) during the above process.

Threshold Voltage at Pin4,

Positive Side

+Vth(4) Apply positive voltage to Pin4 through an ex- 0.89 1.20 1.61 V

ternal resistance (56kΩ). Measure Pin4 volt-

age while Pin1 voltage changes from low (1V)

to high (45V) during the above process.

Threshold Voltage at Pin4,

Negative Side

–Vth(4) Apply negative voltage to Pin4 through an ex- –1.86 –1.20 –0.84 V

ternal resistance (56kΩ). Measure Pin4 volt-

age while Pin1 voltage changes from low (1V)

to high (45V) during the above process.

Threshold Voltage at Pin6

Vth(6) Apply voltage to Pin6 through D1. Measure 0.90 1.15 1.40 V

voltage on Pin6 while Pin1 voltage changes

from low (1V) to high (45V) during the above

process.

Threshold AC Voltage at Pin5 VAC(on) Apply AC voltage to Pin5 through D2. Mea- – 2.5 – Vrms

sure AC voltage on Pin5 while Pin1 voltage

changes from low (1V) to high (45V) during

the above process.

Threshold Voltage at Pin5

Vth(5) Apply voltage to Pin5 directly. Measure volt- –1.8 –1.2 0

V

age on Pin5 when Pin1 voltage change from

low (1V) to High (45V) during the above pro-

cess.

Current Drain at Pin7

I(7) Measure Pin7 input current when turning 16.5 18.5 20.5 mA

relay on.

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