Datasheet
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Decoder
Disable
0000
Discover 1
0001
Discover 2
0010
V Sample
0011
Legacy
0100
Classify
0101
Rup/Pwr
0110
C Sample
0111
AC LO
1001
AC HI
1010
Rdwn
1000
I Sample
1011
T Sample
1100
Power Down
Measure Chnl I
(18mS)
Measure Chnl V
(18 ms)
Apply 2.5mA
(Vmax 18) to
Chnl
Apply AC
LOVoltage
Measure Chnl I
(18mS)
Measure Die
Temperature
(18mS)
Reset all
Functions
Apply 4.4V
(Imax5mA)
To Chnl
Measure Chnl I
(18mS)
Apply 8.8V
(Imax5mA)
To Chnl
Measure Chnl V
(18mS)
Apply 18V
(Imax 100mA)
To Chnl
Measure Chnl I
(18mS)
RampPwr
1.4A/mSec
Enable
OVR I , Ovr V
& Und V
Comparators
Meas ure Chnl I
(31 Sampl es)
Store Value I
Reg
Ramp Down
Measure Chnl V
(18mS)
Apply AC HI
Voltage
Measure Chnl V
(18mS)
Control Register
I2C
Store Value
Discovery I Reg
Set Done Bit
Store Value
Discovery I Reg
Store Value
V Reg
Store Value
V Reg
Store Value
I Reg
4mSDelay
Start A2D
4 ms Delay
Start A2D
Set Done Bit
Pwr Off
Set Done Bit
Store Value
V Reg
Store Value
V Reg
Set Done Bit
Store Value
Temp Reg
Enable
Control
Enable
Control
Enable
Diff Amp
Av 0.107
Enable
Control
Enable
Control
Latch State
Power On
Wait for Next
Function Call
Set Done Bit Set Done Bit
Set Done Bit
Set Done Bit
Set Done Bit
Wait for Next
Function Call
Set Done Bit
Clear On Read
Wait for Next
Function Call
Set Done Bit Set Done Bit
Wait for Next
Function Call
Set Done Bit
Notes:
1. Each Function State remains set until a new function is
called. Example Function 1 - Port Voltage remains at 4.4
V and Resistor Register value is held.
2. Times shown are typical and set by R
BIAS
, and C
T
.
3. Poll for and verify A/D done indication prior to sending
next function call.
Wait for Next
Function Call
Wait for Next
Function Call
Wait for Next
Function Call
If 0111
Repeat
Wait for Next
Function Call
Wait for Next
Function Call
Wait for Next
Function Call
Wait for Next
Function Call
Wait for Next
Function Call
Wait for Next
Function Call
Meas ure Chnl V
(1 Sample) Store
Val ue V Reg
TPS2384
SLUS634D – NOVEMBER 2004 – REVISED MARCH 2007
POWER MANAGEMENT MODE FUNCTIONAL DESCRIPTION (continued)
Figure 9.
21
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