MIC2950 Просмотр технического описания (PDF) - Micrel

Номер в каталоге

Компоненты Описание

Список матч

MIC2950

150mA Low-Dropout Voltage Regulator

Micrel 

MIC2950/2951

+V IN

470kΩ

8

+V IN

5 ERROR

470kΩ

VOUT 1

3 SD

RESET

MIC2951

GND

FB 7

4

VOUT

R1

+ 1µF

R2

Latch Off When Error Flag Occurs

4

20mA

1N

4001

0.1µF

Micrel

+5V

4.7mA

8

VIN

VOUT 1

MIC2951

7

FB

GND

4

1N457

OUTPUT*

1

5

4

2

* HIGH FOR

360 IL < 3.5mA

MIN. VOLTAGE 4V

Open Circuit Detector for 4mA to 20mA Current Loop

8

2

39kΩ

+VIN SENSE

5 ERROR

VOUT 1

RESET

MIC2951

–

C4

3 SD

+

FB 7

39kΩ

GND

4

TAP

6

+VOUT = 5V

+

1µF

+ 6V

LEAD-

1%

100

kΩ

ACID

BATTERY

1%

1

kΩ

C1-C4

LP339

1%

1

kΩ

–

100kΩ

C1

+

<5.8V**

–

100kΩ

C2

+

<6.0V**

–

100kΩ

C3

+

<6.2V**

10kΩ

R3

1% 20kΩ

3

870 33

C1 TO C4 ARE COMPARATORS (LP339 OR EQUIVALENT)

*OPTIONAL LATCH OFF WHEN DROP OUT OCCURS. ADJUST R3 FOR C2

SWITCHING WHEN VIN IS 6.0V

**OUTPUTS GO LOW WHEN VIN DROPS BELOW DESIGNATED THRESHOLDS.

Regulator with State-of-Charge Indicator

February 1999

3-61

Share Link: