AS3722 datasheet(72/199 Pages) AMSOSRAM

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[v1-01] 2015-Sep-07

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AS3722 − Detailed Descriptions- System Functions

corresponding status bit (temp_sdX_shutdown) can only be

cleared by reading the register. It’s possible to generate an

interrupt (mask able) on reaching both the alarm and the

shutdown level.

Figure 67:

Temperature Supervision Characteristics

Temperature Supervision Characteristic: Shows the key electrical parameter of the over-temperature

supervision.

Current Supervision

All LDO’s and DCDC step downs have an integrated over-current

protection.

When a regulator runs into its current limit, the output voltage

will drop and trigger a “low voltage” interrupt when hitting the

threshold (-5% for SD0-6).

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Talarm0

ov_temp_alarm0 rising

threshold

109

ºC

Talarm1

ov_temp_alarm1 rising

threshold

113

128

ºC

Tshutdown

ov_temp_shutdown

rising threshold

125

140

155

ºC

Thyst

ov_temp_110/140

hysteresis

5ºC

TSDx_alarm

temp_sdX_alarm rising

threshold

110

1125

ºC

TSDx_shutdown

temp_sdX_shutdown

rising threshold

125

140

155

ºC

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