LP2950ACN-L-3.3 Просмотр технического описания (PDF) - Signal Processing Technologies

Номер в каталоге

Компоненты Описание

производитель

LP2950ACN-L-3.3

100mA Low Dropout Voltage Regulators

Signal Processing Technologies 

TYPICAL APPLICATIONS (continued)

+ 6V

SEALED

LEAD-

120kΩ

1.5kΩ

ACID

BATTERY

SOURCE FB

SPX385

1N457

FOR 5.5 V

400kΩ

100kΩ

Figure 5. Low Battery disconnect

LP2950/LP2951

3

SD

8

+V IN

1

V OUT

LP2951

SENSE

2

GND

4

MAIN V+

+

1µF

MEMORY V+

20kΩ

NI-CAD

BACKUP

BATTERY

39kΩ ..

RESET

8

5 __+_V_I_N_

ERROR

2

SENSE

1

VOUT

-

LP2951

3

C4

SD

7

+

FB

39kΩ ..

GND

TAP

4

6

+VOUT = 5V

+

1uF

1% 100kΩ ..

-

C1

+

6V

LEAD-

1kΩ ..

ACID

1%

BATTERY

-

C2

+

100kΩ ..

100kΩ ..

<5.8V**

1% 1kΩ .. -

C3

+

10k Ω ..

R3

1% 20k Ω ..

100kΩ ..

<6.0V**

<6.2V**

* OPTIONAL LATCH OFF WHEN DROPOUT OCCURS. ADJUST R3 FOR C2 SWITCHING WHEN

VIN IS 6.0V

* OUTPUTS GO LOW WHEN V IN DROPS BELOW DESGNATED THRESHHOLDS

Figure 6. Regulator with State-of Charge Indicator

Rev. 8/10/01

LP2950/51 100mA Low Dropout Voltage Regulators

10

©Copyright 2001 Sipex Corporation

Share Link: