Datasheet > 7918

7918

更新时间： 2024-11-14 18:04:27

品牌	Logo	应用领域
合科泰 - HOTTECH		/
页数	文件大小	规格书
10页	947K
描述
TO-252

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中文翻译

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数据手册

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7918 数据手册

79xx

PLASTIC-ENCAPSULATE VOLTAGE REGULATORS

FEATURES

 Maximum Output Current IO: 1.5A

 Output Voltage VO: -5,-6,-8,-9,-10,-12,-15,-18,-20,-24 V

 Continuous Total Dissipation

PD: 1.25 W (Ta= 25 ℃ )

 Surface Mount device

SCHEMATIC DIAGRAM

Gnd

TO-252

2.0 k

8.0 k

1.0 k

3.6 k

1.2 k

4.0 k

1.6 k

10 k

20 pF

10 pF 10 k

240

20 k 20 k

2.0 k

0.3

1.1 k

750

This device contains 26 active transistors.

MECHANICAL DATA



Case: TO-252

Case Material: Molded Plastic. UL flammability

Classification Rating: 94V-0

Weight: 0.055 grams (approximate)

MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)

Parameter

Symbol

Value

Unit

-35

=-5~-18V

V_O

=-20~-24V

V_O

Input Voltage

V_i

-40

Internally Limited

Total Dissipation

Thermal Resistance from Junction to Ambient

Thermal Resistance from Junction to Case

R_θJA

R_θJc

°C/W

°C

5.0

opr

0~+125

Operating Temperature

TSTG

-65 ~+125

°C

Storage Temperature Range

TEST CIRCUIT(Typical Applications)

78 series

GND

OUT

+Vo

+Vin

COM

-Vin

2.2µF

1µF

0.33uF

0.1uF

C^O

C^I

Note : In the above positive and negative

power supply application, D1 and D2

should be connected. If D1 and D2

are not connected, either of positive

or negative power supply circuit may

not turns on.

- V^I

Input

- V^O

Output

79XX

0.1uF

COM

Figure 1.Negative Fixed output regulator

OUT

-Vo

79 series

Figure 2.Positive/Negative Voltage Supply

Notes:

(1) To specify an output voltage, substitute voltage value for "XX "

(2) Required for stability. For value given, capacitor must be solid tantalum. If aluminium electronics are used, at least ten times value

shown should be selected. CI is required if regulator is located an appreciable distance from power supply filter.

(3) To improve transient response. If large capacitors are used, a high current diode from input to output (1N400l or similar)

should be introduced to protect the device from momentary input short circuit.

1 / 10

E-mail:hkt@heketai.com

12 3 4 5 6 7...10

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79185-013	AMPHENOL	获取价格	Board Connector, 26 Contact(s), 2 Row(s), Male, Right Angle, Solder Terminal,
79185-014	AMPHENOL	获取价格	Board Connector, 28 Contact(s), 2 Row(s), Male, Right Angle, Solder Terminal,
79185-015	AMPHENOL	获取价格	Board Connector, 30 Contact(s), 2 Row(s), Male, Right Angle, Solder Terminal
79185-016	AMPHENOL	获取价格	Board Connector, 32 Contact(s), 2 Row(s), Male, Right Angle, Solder Terminal
79185-017	AMPHENOL	获取价格	Board Connector, 34 Contact(s), 2 Row(s), Male, Right Angle, Solder Terminal

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