Analog Devices ADP2291 Evaluation Board ADP2291RM-EVALZ ADP2291RM-EVALZ 数据表

产品代码
ADP2291RM-EVALZ
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页码 20
  
ADP2291
 
Rev. A | Page 11 of 20 
THERMAL SHUTDOWN  
If the ADP2291 junction temperature rises above 135°C, 
thermal shutdown occurs. Extreme junction temperatures can 
be the result of excessive current operation and/or high ambient 
temperatures.  
A 35°C temperature hysteresis is included so that the ADP2291 
does not return to operation during thermal shutdown until the 
on-chip temperature drops below 100°C.  
 
 
CONTROL
LOGIC
TIMER
TEMP
VOLTAGE
REFERENCE
GM
3V
1.2V
5V
GM
GM
TIMER
ADJ
BAT
DRV
CS
IN
SHUTDOWN
VIN_GOOD
RESTART
BAT
4.1V
BAT
2.5V
CHG
0.4V
IN
BAT
IN
3.8V
IPNP
C/10
PRECHARGE
POWER_DOWN
END_OF_CHARGE
04873-020
 
Figure 20. Functional Block Diagram