參數(shù)資料
型號: TEA1211
廠商: NXP Semiconductors N.V.
英文描述: High efficiency auto-up/down DC/DC converter
中文描述: 高效率auto-up/down直流/直流轉換器
文件頁數(shù): 10/23頁
文件大?。?/td> 125K
代理商: TEA1211
2003 Oct 13
10
Philips Semiconductors
Preliminary specification
High efficiency auto-up/down
DC/DC converter
TEA1211HN
handbook, full pagewidth
MDB009
S
START
condition
9
8
2
1
clock pulse for
acknowledgement
not acknowledge
acknowledge
DATA OUTPUT
BY SLAVE
TRANSMITTER
DATA OUTPUT
BY SLAVE
RECEIVER
SCL FROM
MASTER
TRANSMITTER
Fig.9 Acknowledge on the I
2
C-bus.
7.12.5
I
2
C-
BUS PROTOCOL
7.12.5.1
Addressing
Before any data is transmitted on the I
2
C-bus, the device which should respond is addressed first. The addressing is
always carried out with the first byte transmitted after the start procedure. The (slave) address of the TEA1211HN is
0001 0000 (10h). The subaddress (or word address) is 0000 0000 (00h).
The TEA1211HN acts as a slave receiver only. Therefore the clock signal SCL is only an input signal. The data signal
SDA is a bidirectional line, enabling the TEA1211HN to send an acknowledge.
7.12.5.2
Data
The data consists of one byte, addressing the 40 voltage steps as explained in Tables 1 and 2.
Table 1
Data byte
Table 2
Translation data byte to voltage level
SUBADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 2
BIT 0
00h
0
0
CVLVL5
CVLVL4
CVLVL3
CVLVL2
CVLVL1
CVLVL0
SUBADDRESS
NAME
SIZE
(BIT)
STEP NUMBER
MIN. (V)
STEP
(V)
MAX. (V)
MIN.
MAX.
00h
CVLVL
6
0
40
1.5
0.1
5.5
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