công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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LM4857 bảng dữ liệu(PDF) 7 Page - National Semiconductor (TI) |
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LM4857 bảng dữ liệu(HTML) 7 Page - National Semiconductor (TI) |
7 / 38 page Absolute Maximum Ratings (Notes 1, 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 6.0V Storage Temperature −65˚C to +150˚C Input Voltage −0.3V to V DD +0.3V Power Dissipation (Note 3) Internally Limited ESD Susceptibility (Note 4) 2000V ESD Susceptibility (Note 5) 200V Junction Temperature (T J) 150˚C Thermal Resistance θ JA (TLA30CZA) (Note 10) 62˚C/W θ JA (SPA28A) (Note 12) 42˚C/W θ JC (SPA28A) 3˚C/W Operating Ratings Temperature Range T MIN ≤ T A ≤ T MAX −40˚C ≤ T A ≤ +85˚C Supply Voltage 2.7V ≤ V DD ≤ 5.5V 2.5V ≤ I2CV DD ≤ 5.5V Audio Amplifier Electrical Characteristics V DD = 5.0V (Notes 1, 2) The following specifications apply for V DD = 5.0V, unless otherwise specified. Limits apply for TA = 25˚C. Symbol Parameter Conditions LM4857 Units (Limits) Typical (Note 6) Limits (Notes 7, 8) I DD Supply Current V IN = 0V, No load; LD5 = RD5 = 0 (Note 9) Mode 1, 6, 11 6 9.5 mA (max) Mode 4, 5, 9, 10, 14, 15 5 8 mA (max) Mode 2, 3, 7, 8, 12, 13 13 21 mA (max) I SD Shutdown Current Output mode 0 (Note 9) 0.2 3 µA (max) LM4857SP Speaker; THD+N = 1%; f = 1kHz; 4 Ω BTL 1.6 W P O Output Power Speaker; THD+N = 1%; f = 1kHz; 8 Ω BTL 1.2 0.9 W (min) Headphone; THD+N = 1%; f = 1kHz; 32 Ω SE 75 60 mW (min) Earpiece; THD+N = 1%; f = 1kHz; 32 Ω BTL, CD4 = 0 100 80 mW (min) Earpiece; THD+N = 1%; f = 1kHz; 32 Ω BTL, CD4 = 1 135 mW THD+N Total Harmonic Distortion Plus Noise LD5=RD5=0 Speaker; P O= 400mW; f = 1kHz; 8 Ω BTL 0.05 % Headphone; P O= 15mW; f = 1kHz; 32 Ω SE 0.04 % Earpiece; P O= 15mW; f = 1kHz; 32 Ω BTL, CD4 = 0 0.05 % Line Out, V O=1VRMS; f = 1kHz; 5k Ω SE 0.009 % V OS Offset Voltage Speaker; LD5 = RD5 = 0 5 40 mV (max) Earpiece; LD5 = RD5 = 0 5 30 mV (max) www.national.com 7 |
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