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DA9072 Datasheet(PDF) 48 Page - Dialog Semiconductor

Part # DA9072
Description  Ultra-Low Quiescent Current PMIC
PDF  113 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA9072 Datasheet(HTML) 48 Page - Dialog Semiconductor

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DA9072
Ultra-Low Quiescent Current PMIC
Datasheet
Revision 3.0
14-Jun-2021
CFR0011-120-00
48 of 113
© 2021 Dialog Semiconductor
RIN_N
SYS_FLT
RIN_N_WAKE1
RIN_N_WAKE2
RIN_N_RST
ROUT_N
tINTR
tINTR
tINTR
tRST_D
tWAKE2
tRST
tWAKE1
(don’t care)
Figure 31: RIN_N Pushbutton Reset Timer Timing Diagram
The RESET behavior is configurable with the options shown in Table 40.
Table 40: RIN_N Reset Timer Configuration
Bits
Configuration Description
RIN_N_RST_REC
0x0010 [1:0]
0: RESET event has no effect
1: Enter Ship mode at RESET
2: Enter Hi-Z mode at RESET
PWR_CYC_MODE
0x0012 [1]
0: Power cycle triggered by VDD_PWR insertion / removal
1: Power cycle triggered by RESET timer when VDD_PWR present
RIN_N_RST_ROUT_EN
0x0010 [3:2]
0: Disable ROUT_N toggle at RESET
1: Enable ROUT_N toggle at RESET
2: Enable ROUT_N toggle at RESET only when VDD_PWR is present
The RIN_N timer can also be used to exit Ship mode. A WAKE1 event triggers Ship mode exit, with
WAKE2 and RESET being ignored.
If ROUT_N is enabled, a RESET event causes the ROUT_N output to toggle low for 400 ms (typ).
ROUT_N is an open-drain output, pull up this pin to the logic rail with a 1 k
Ω to 100 kΩ resistor.
4.8.5
System Status Register
The System Status register (0x0002) indicates the status of four system functions:
•
BUCK: High = enabled with no faults
•
Charge Status: Ready, Charge in Progress, Charge Done, or Fault
•
MODE: Logic state of the MODE pin
•
Power Cycle: High indicates that a power cycle has occurred
Only the power cycle bit shows previous events and is read-clear. The others are READ only,
reflecting the current status.
4.8.6
I2C Programming
DA9072 includes an I2C compatible interface which allows READ/WRITE access to all registers. The
interface is disabled in some modes and is configurable, see Table 41.



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