ChongMing Group (HK) Int'l Co., Ltd
CHONGMING GROUP (HK) INT'L CO., LTD.
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1A Positive 3 terminal voltage regulator KA7809ETU , Thermal Overload Protection
Description
The KA78XXE/KA78XXAE series of three-terminal positive regulator are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications. Each type 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.
Internal Block Diagram
| Parameter | Symbol | Value | Unit |
|
Input Voltage (for VO = 5V to 18V) (for VO = 24V) |
VI VI |
35 40 |
V V |
| Thermal Resistance Junction-Cases (TO-220) | RθJC | 5 | °C/W |
| Thermal Resistance Junction-Air (TO-220) | RθJA | 65 | °C/W |
| Operating Temperature Range (KA78XXE/AE/ER) | TOPR | 0 ~ +125 | °C |
| Storage Temperature Range | TSTG | 65 ~ +150 | °C |