FN7678.0 September 3, 2010 Thermal Protection and Monitoring An on-chip temperature sensor provides two thresholds of temperature monitoring. I" />
參數(shù)資料
型號(hào)： D2-24044-MR
廠商： Intersil
文件頁(yè)數(shù)： 4/20頁(yè)
文件大?。?/td> 0K
描述： IC DGTL AMP AUDIO PWR D 38HTSSOP
標(biāo)準(zhǔn)包裝： 50
系列： D2Audio™
類型： D 類
輸出類型： 2-通道（立體聲）或 4 通道（四路）
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 30W x 2 @ 8 歐姆
電源電壓： 9 V ~ 26 V
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 38-HTSSOP
封裝/外殼： 38-TFSOP （0.173"，4.40mm 寬）裸露焊盤(pán)
包裝： 管件
12
FN7678.0
September 3, 2010
Thermal Protection and Monitoring
An on-chip temperature sensor provides two thresholds
of temperature monitoring.
If the device reaches the lower threshold, the nOVRT
output is asserted, providing warning indication to an
external controller. The low threshold setting provides
indication only, and does not have any effect on device
operation.
The lower high-temperature threshold (warning) is
set at approximately +125°C.
If the device reaches the higher threshold, it will drive all
four nERRORA-D outputs low (active) and shut down the
device, in addition to asserting the nOVRT output. This
shutdown in non-latching, and operation will resume
automatically when temperature returns to normal.
The higher high-temperature threshold (over-temp)
is set at approximately +140°C.
Power Supply Voltage Monitoring
Undervoltage monitors are included for the output drive
(HVDD) supply voltage, the on-chip generated gate drive
(REG5V) supply voltage, and the low-level PWMVDD
supply voltage. Detection occurs at approximately 2.5V
for PWMVDD, approximately 4V for the gate drive supply,
and approximately 7V for the HVDD supply. (Limits are
listed in the electrical specification tables starting on
If any of the monitored voltages drop below their
threshold, the device shuts down its outputs and asserts
all four of the nERROR outputs. Operation resumes
normally after the undervoltage condition is cleared.
D2-24044
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