STW4510 datasheet(27/57 Pages) STMICROELECTRONICS

部品番号	STW4510

部品情報	2 step-down DC/DC converters / 5 LDO power management

PDF	57 Pages

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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27 / 57 page

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STw4510

Functional description

27/57

Power control register @ 08h

Address:

08h

Type:

R/W

Reset:

0000_1000

Description:

3.2.9

IT generation

STw4510 has one interrupt signal: VddOK. This signal has two functions:

●

When VddOK is high, Vsdc1 and Vsdc2 output voltages are within the right range

●

When VddOK is low,

–

it means that step-up DC/DC output converter (Vsdc1 or Vsdc2) are not regulated

properly. The internal interrupt set to “1” the bit 5 of the

Application control register

2. This bit is reset after reading.

–

it means that the signal Pwren is low and sleep mode has been requested.

Address 1Fh

Address 1Eh

98765

43210

R/W

[15:10]Reserved

[4]Reserved

[3]en_monitoring

0: Disabled/ Monitoring = OFF

1: Enabled/Vsdc1 & Vsdc2 monitoring = ON (default)

[2]en_vana2

0: Vana2 in power down mode (default)

1: Vana2 enabled in high power mode

[1]Reserved

[0]EN

0: Read enabled (default)

1: Write enabled

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