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LMC7660IN Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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LMC7660IN Datasheet(HTML) 2 Page - National Semiconductor (TI) |
2 / 12 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 10.5V Input Voltage on Pin 6, 7 (Note 2) −0.3V to (V + + 0.3V) for V + < 5.5V (V + − 5.5V) to (V+ + 0.3V) for V + > 5.5V Current into Pin 6 (Note 2) 20 µA Output Short Circuit Duration (V + ≤ 5.5V) Continuous Power Dissipation (Note 3) Dual-In-Line Package 1.4W Surface-Mount Package 0.6W T J Max (Note 3) 150˚C θ JA (Note 3) Dual-In-Line Package 90˚C/W Surface-Mount Package 160˚C/W Storage Temp. Range −65˚C ≤ T ≤ 150˚C Lead Temperature (Soldering, 5 sec.) 260˚C ESD Tolerance (Note 7) ± 2000V Electrical Characteristics (Note 4) Symbol Parameter Conditions Typ LMC7660IN/ Units Limits LMC7660IM Limit (Note 5) I s Supply Current R L = ∞ 120 200 µA 400 max V +H Supply Voltage R L = 10 kΩ, Pin 6 Open 3 to 10 3 to 10 V Range High (Note 6) Voltage Efficiency ≥ 90% 3to10 V +L Supply Voltage R L = 10 kΩ, Pin 6 to Gnd. 1.5 to 3.5 1.5 to 3.5 V Range Low Voltage Efficiency ≥ 90% 1.5 to 3.5 R out Output Source I L = 20 mA 55 100 Ω Resistance 120 max V = 2V, I L = 3 mA 110 200 Ω Pin 6 Short to Gnd. 300 max F osc Oscillator 10 kHz Frequency P eff Power Efficiency R L = 5kΩ 97 95 % 90 min V o eff Voltage Conversion R L = ∞ 99.9 97 % Efficiency 95 min I osc Oscillator Sink or Pin 7 = Gnd. or V + 3µA Source Current Note 1: Absolute Maximum ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its rated operating conditions. See Note 4 for conditions. Note 2: Connecting any input terminal to voltages greater than V+or less than ground may cause destructive latchup. It is recommended that no inputs from sources operating from external supplies be applied prior to “power-up” of the LMC7660. Note 3: For operation at elevated temperature, these devices must be derated based on a thermal resistance of θja and Tj max, Tj = TA + θja PD. Note 4: Boldface numbers apply at temperature extremes. All other numbers apply at TA = 25˚C, V + = 5V, C osc = 0, and apply for the LMC7660 unless otherwise specified. Test circuit is shown in Figure 1 . Note 5: Limits at room temperature are guaranteed and 100% production tested. Limits in boldface are guaranteed over the operating temperature range (but not 100% tested), and are not used to calculate outgoing quality levels. Note 6: The LMC7660 can operate without an external diode over the full temperature and voltage range. The LMC7660 can also be used with the external diode Dx, when replacing previous 7660 designs. Note 7: The test circuit consists of the human body model of 100 pF in series with 1500 Ω. www.national.com 2 |
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