KA75250ZTA [ROCHESTER]

1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3, TO-92, 3 PIN;


型号：	KA75250ZTA
厂家：	Rochester Electronics
描述：	1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3, TO-92, 3 PIN
文件：	总11页 (文件大小：757K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

www.fairchildsemi.com

KA75XXX

Voltage Detector

Features

Description

• Detecting against error operations at the power ON/OFF.

The KA75250/KA75270/KA75290/KA75310/KA75330/

KA75360/KA75390/KA75420/KA75450 prevents error of

system from supply voltage below normal voltage level at

the time the power on and instantaneous power off in sys-

tems.

•

Resetting function for the low voltage microprocessor.

Checking low battery

TO-92

1. Input 2. GND 3. Output

Internal Block Diagram

INPUT

1:TO-92

3:SOT-89

OUT

3:TO-92

1:SOT-89

V_REF

GND

2:TO-92

2:SOT-89

Rev. 1.0.2

KA75XXX

Absolute Maximum Rating (T =25°C)

Characteristic

Symbol

Value

Unit

Supply Voltage

Vcc

0.3 ~ + 15.0

2.5/2.7/2.9/3.1

3.3/3.6/3.9/4.2/4.5

Detecting Voltage

DET

Hysteresis Voltage

°C

HYS

OPR

Operating Temperature

Storage Temperature

- 25 ~ + 85

- 50 ~ + 150

200

STG

°C

Power Dissipation

%/ °C

Detecting Voltage Temperature Coefficient

∆V

DET

/∆T

R = 200Ω, +0.01

Electrical Characteristics (T =25°C)

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Unit

KA75250

KA75270

KA75290

KA75310

KA75330

KA75360

KA75390

KA75420

KA75450

2.35

2.55

2.75

2.95

3.15

3.45

3.75

4.05

4.35

2.5

2.7

2.9

3.1

3.3

3.6

3.9

4.2

4.5

2.65

2.85

3.05

3.25

3.45

3.75

4.05

4.35

4.65

R =200Ω

≤ 0.4V

Detecting Voltage

DET

Low Output Voltage

Output Leakage Current

Hysteresis Voltage

R =200Ω

0.4

0.1

=15V

LKG

R =200Ω

100

HYS

Detecting Voltage Temperature

Coefficient

∆V

DET

/∆T

R =200Ω

±0.01

%/°C

Circuit Current(at on time)

Circuit Current(at off time)

Threshold Operating Voltage

" L"± Transmission Delay Time

" H"± Transmission Delay Time

-0.05V

=5.25V

300

500

1.0

CCL

CC DET(MIN)

CCH

R =200Ω, V ≤ 0.4V

0.8

TH(OPR)

R =1.0kΩ, C =100pF

0.6

R =1.0kΩ, C =100pF

CC DET(MIN)

-0.05V,

Output Current (at on time)

OLI

T =25°C

- 0.05V

CC DET(MIN)

OLII

T = -25 ~ + 85°C

KA75XXX

TEST CIRCUIT 1.

INPUT

OUTPUT

KA75XXX

10u

10V

GND

TEST CIRCUIT 2.

INPUT

R_L

KA75XXX

OUTPUT

0.1u

50V

10u

50V

INPUT PULSE

GND

TEST CIRCUIT 3.

INPUT

R_L

LED

V_CC

KA75XXX

OUTPUT

GND

KA75XXX

Application Circuit

INPUT

R_L

Vcc

CPU

GND

V_CC

KA75XXX

OUTPUT

RESET

GND

KA75XXX

Mechanical Dimensions

Package

Dimensions in millimeters

TO-92

+0.25

–0.15

4.58

0.46 ±0.10

+0.10

–0.05

1.27TYP

0.38

[1.27 ±0.20

]

[1.27 ±0.20]

3.60 ±0.20

(R2.29)

KA75XXX

Ordering Information

Product Number

KA75250Z

KA75270Z

KA75290Z

KA75310Z

KA75330Z

KA75360Z

KA75390Z

KA75420Z

KA75450Z

Package

Operating Temperature

TO-92

-25 ~ +85°C

KA75XXX

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY

LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER

DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body,

or (b) support or sustain life, and (c) whose failure to

perform when properly used in accordance with

instructions for use provided in the labeling, can be

reasonably expected to result in a significant injury of the

user.

2. A critical component in any component of a life support

device or system whose failure to perform can be

reasonably expected to cause the failure of the life support

device or system, or to affect its safety or effectiveness.

www.fairchildsemi.com

4/28/01 0.0m 001

Stock#DSxxxxxxxx

2001 Fairchild Semiconductor Corporation

Product Folder - Fairchild P/N KA75250Z - Voltage Detector (2.5V)

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