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 HSMC
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HI-SINCERITY MICROELECTRONICS CORP. Spec. No. : IC200405 Issued Date : 2004.04.01 Revised Date : 2006.01.19 Page No. : 1/12 H78XXAJ / BJ, H78XXAI / BI, H78XXANE / BNE, H78XXAE / BE HSMC Product Specification H78XX Series 3-TERMINAL POSITIVE VOLTAGE REGULATORS Description The H78XX series can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each employs internal current limiting, thermal shut-down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. Features • Output Current In Excess of 1A • Output Voltages of 5V, 6V, 8V, 9V, 12V • Internal Short-Circuit Current Limiting & Thermal Overload Protection • Guaranteed In Extended Temperature Range Absolute Maximum Ratings (T A=25°C) Characteristic Symbol Rating Unit Input Voltage V IN 40 V Power Dissipation P D Internally limited (Note) Operating Temperature T opr -30 to 85 oC Storage Temperature T stg -55 to 150 oC Junction Temperature T j 150 oC Note: (1)TA=25 oC, TO-251: 1W, TO-252: 1W, SOT-82: 2.1W, TO-220AB: 2.7W (2)TC=25 oC, All package: 10W Thermal Data Characteristic Symbol TO-252 TO-251 SOT-82 TO-220AB Unit Thermal Resistance Junction-Case R th(j-c) 12.5 12.5 12.5 12.5 oC/W Thermal Resistance Junction-Ambient R th(j-a) 125 125 60 47 oC/W Schematic Diagram & Equivalent Circuit H78XX Series Pin Assignment Schematic Diagram Equivalent Circuit 1 2 3 Tab 1 2 3 1 3 2 Starting Circuit Reference Voltage Current Generator Error Amplifier SOA Protection Thermal Protection Series Pass Element Output GND Input 1 2 3 Tab 3-Lead Plastic TO-251 Package Code: I Pin 1: VIN Pin 2 & Tab: GND Pin 3: VOUT 3-Lead Plastic TO-252 Package Code: J Pin 1: VIN Pin 2 & Tab: GND Pin 3: VOUT 1 2 3 Tab 3-Lead Plastic SOT-82 Package Code: NE Pin 1: VIN Pin 2: GND Pin 3: VOUT 3-Lead Plastic TO-220AB Package Code: E Pin 1: VIN Pin 2 & Tab: GND Pin 3: VOUT VOUT VIN |
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