器件名称: 7805A
功能描述: 3-Terminal positive Voltage Regulators
文件大小: 217.88KB 共6页
简 介:7805AJ Pin Assignment
Description
The 7805A 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 essen-tially 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.
Tab
1
2
3
3-Lead Plastic TO-252 Package Code: J Pin 1: VIN Pin 2 & Tab: GND Pin 3: VOUT
7805AE Pin Assignment
Tab 3-Lead Plastic TO-220AB Package Code: E Pin 1: VIN Pin 2 & Tab: GND Pin 3: VOUT 3
Features
Output Current In Excess of 1A Output Voltage of 5V Internal Short-Circuit Current Limiting & Thermal Overload Protection Guaranteed In Extended Temperature Range
Absolute Maximum Ratings (TA=25°C)
1
2
Characteristic Input Voltage Power Dissipation Operating Temperature Storage Temperature Junction Temperature
o
Symbol VIN PD Topr Tstg Tj
Rating 40 Internally limited (Note) -30 to 85 -55 to 150 150
Unit V
o o o
C C C
Note: (1)TA=25 C, , TO-252: 1W, TO-220AB: 2.7W o (2)TC=25 C, All package: 10W
Thermal Data
Characteristic Thermal Resistance Junction-Case Thermal Resistance Junction-Ambient Symbol Rth(j-c) Rth(j-a) TO-252 12.5 125 TO-220AB 12.5 47 Unit
o o
C/W C/W
Schematic Diagram & Equivalent Circuit
Schematic Diagram
Input
1
Equivalen……
