參數(shù)資料
型號: TPS62400QDRCQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PDSO10
封裝: 3 X3 MM, PLASTIC, SON-10
文件頁數(shù): 15/41頁
文件大?。?/td> 1319K
代理商: TPS62400QDRCQ1
DATA IN
Start
DATA OUT
ACK
RFA
A1
A0
D4
D3
D2
D1
D0
DA7
0
DA6
1
DA5
0
DA4
0
DA3
1
DA2
1
DA1
1
DA0
0
Device Address
DATABYTE
EOS
Start
EOS
Start
DA7
0
t
Start
Mode,Static
HighorLow
Mode,Static
HighorLow
DATA IN
t
Start
T
EOS
T
EOS
DA0
0
RFA
0
D0
1
AddressByte
DATA Byte
TPS62400-Q1, TPS62401-Q1
TPS62402-Q1, TPS62403-Q1
SLVSA67 – FEBRUARY 2010
www.ti.com
The device enters forced PWM mode operation immediately whenever the MODE/DATA pin turns to high level.
The device also stays in forced PWM mode during the entire protocol reception time.
With a falling edge on the MODE/DATA pin the device starts bit decoding. If the MODE/DATA pin stays low for at
least ttimeout, the device gets an internal timeout and Power Save Mode operation is enabled.
A protocol sent within this time is ignored because the falling edge for the Mode change is first interpreted as
start of the first bit. In this case it is recommended to send the protocol first, and then change at the end of the
protocol to Power Save Mode.
Figure 34. EasyScale Protocol Overview
Table 3. EasyScale Bit Description
BYTE
BIT
NAME
TRANSMISSION
DESCRIPTION
NUMBER
DIRECTION
Device
7
DA7
IN
0 MSB device address
Address
6
DA6
IN
1
Byte
5
DA5
IN
0
4
DA4
IN
0
4Ehex
3
DA3
IN
1
2
DA2
IN
1
DA1
IN
1
0
DA0
IN
0 LSB device address
Databyte
7(MSB)
RFA
IN
Request For Acknowledge, if high, Acknowledge condition will applied by the device
6
A1
Address Bit 1
5
A0
Address Bit 0
4
D4
Data Bit 4
3
D3
Data Bit 3
2
D2
Data Bit 2
1
D1
Data Bit 1
0(LSB)
D0
Data Bit 0
ACK
OUT
Acknowledge condition active 0, this condition will only be applied in case RFA bit is
set. Open drain output, Line needs to be pulled high by the host with a pullup
resistor.
This feature can only be used if the master has an open drain output stage. In case
of a push pull output stage Acknowledge condition may not be requested!
Figure 35. EasyScale Protocol Without Acknowledge
22
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s) :TPS62404-Q1
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