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DA9131 Datasheet(PDF) 21 Page - Renesas Technology Corp

Part # DA9131
Description  High-Performance, Dual-Channel DC-DC Converter for Mobile and Portable Applications
PDF  58 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

DA9131 Datasheet(HTML) 21 Page - Renesas Technology Corp

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DA9131
High-Performance, Dual-Channel DC-DC
Converter for Mobile and Portable Applications
Datasheet
Revision 2.1
25-May-2022
CFR0011-120-00
21 of 57
© 2022 Renesas Electronics
4.1.7
Thermal Protection
DA9131 is protected from internal overheating by thermal shutdown.
There are two kinds of flags concerning thermal protection, thermal warning and thermal critical. The
warning flag is asserted when TJ > TWARN and the critical flag is asserted when TJ > TCRIT. When the
critical flag is asserted, Buck1 and Buck2 are shut down immediately.
Table 12: Thermal Protection Control Registers
Category
Register Name
Description
Status
TEMP_WARN
Asserted as long as the thermal warning threshold is reached
TEMP_CRIT
Asserted as long as the thermal shutdown threshold is reached
IRQ event
E_TEMP_WARN
TEMP_WARN caused event
E_TEMP_CRIT
TEMP_CRIT caused event
IRQ mask
M_TEMP_WARN
TEMP_WARN event IRQ mask
M_TEMP_CRIT
TEMP_CRIT event IRQ mask
M_VR_HOT
TEMP_WARN status IRQ mask
Figure 10: Thermal Protection Operation
Warning Flag
TCRIT
Junction
Temperature
TWARN
Critical Flag
IRQ
IRQ
Buck1 and Buck2 Shutdown
Buck Enable
I2C Bus
Write
1
to CH<x>_EN



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