NTE1979

NTE1979 Integrated Circuit Negative 3 Terminal Voltage Regulator, –8V, 100mA Description: The NTE1979 is a 3–terminal fixed negative output voltage regulatgor in a TO92 type package designed for use in power circuits with current capacity up to 100mA. Stabilized fixed output voltage is obtained from unstable DC input voltage without the use of external components. Features: D No External Components D Output Current in Excess of 100mA D Built–In Short–Circuit Current Limiting D Built–In Thermal Overload Protection Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –35V Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +80°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Note 1. When TJ exceeds +150°C, the internal circuit cuts off the output. Electrical Characteristics: (TA = +25°C, VI = –14V, IO = 40mA, Ci = 2µF, Co = 1µF unless otherwise specified) Parameter Output Voltage Output Voltage Tolerance Line Regulation Symbol VO VO REGIN REGL TJ = +25°C VI = –11V to –23V, IO = 1mA to 70mA, TJ = 0° to +125°C VI = –10V to –24V, TJ = +25°C VI = –11V to –21V, TJ = +25°C Load Regulation IO = 1mA to 100mA, TJ = +25°C IO = 1mA to 40mA, TJ = +25°C Test Conditions Min –7.68 –7.6 – – – – Typ –8.0 – – – 15 7 Max –8.32 –8.4 160 80 80 40 Unit V V mV mV mV mA Note 2. The specified condition TJ = +25°C means that the test should be carried out with the test time so short (within 10ms) that the drift in characteristic value due to the rise in chip junction temperature can be ignored. Electrical Characteristics (Cont’d): Parameter Bias Current Input Bias Current Fluctuation Symbol IBIAS ∆IBIAS(L) Output Noise Voltage Ripple Rejection Ratio Minimum I/O Voltage Difference Output Short Circuit Current Output Voltage Temperature Coefficient Vno RR VDIF(min) IO(Short) ∆VO/TA (TA = +25°C, VI = –14V, IO = 40mA, Ci = 2µF, Co = 1µF unless otherwise specified) Test Conditions TJ = +25°C IO = 1mA to 40mA, TJ = +25°C f = 10Hz to 100kHz, TA = +25°C VI = –11V to –21V, f = 120Hz, TA = +25°C TJ = +25°C VI = –35V, TJ = +25°C IO = 5mA, TJ = 0° to +125°C Min – – – – 54 – – – Typ 3 – – 52 – 0.8 200 –0.6 Max 5 0.5 0.1 – – – – – Unit mA mA mA µV dB V mA mV/°C ∆IBIAS(IN) VI = –11V to –23V, TJ = +25°C Note 2. The specified condition TJ = +25°C means that the test should be carried out with the test time so short (within 10ms) that the drift in characteristic value due to the rise in chip junction temperature can be ignored. .135 (3.45) Min .210 (5.33) Max Seating Plane .500 (12.7) Min Common VIN VOUT .021 (.445) Dia Max .100 (2.54) .050 (1.27) .105 (2.67) Max .205 (5.2) Max .165 (4.2) Max .105 (2.67) Max