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參數資料
| 型號： | TPS65182RGZR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PQCC48 |
| 封裝： | 7 X 7 MM, 0.9 MM, PLASTIC, QFP-48 |
| 文件頁數： | 6/24頁 |
| 文件大小： | 865K |
| 代理商： | TPS65182RGZR |
43 kW
10 kW NTC
7.307 kW
2.25V
10
10 bit ADC
Digital
TPS6518x
SLVSAA2C – MARCH 2010 – REVISED OCTOBER 2010
www.ti.com
Table 1. ADC Output Value vs Termperature
TEMPERATURE
TMST_VALUE[7:0]
< -10°C
1111 0110
-10°C
1111 0110
-9°C
1111 0111
...
-2°C
1111 1110
-1°C
1111 1111
0°C
0000 0000
1°C
0000 0001
2°C
0000 0010
...
25°C
0001 1001
...
85°C
0101 0101
> 85°C
0101 0101
Figure 3. NTC Bias and Measurement Circuit
I
2C BUS OPERATION
The TPS65182/TPS65182B supports a special I2C mode making it compatible with the EPSON Broadsheet
S1D13521 timing controller. Standard I2C protocol requires the following steps to read data from a register:
1. Send device slave address, R/nW bit set low (write command)
2. Send register address
3. Send device slave address, R/nW set high (read command)
4. The slave will respond with data from the specified register address.end device slave address, R/nW set high
(read command).
The EPSON Broadsheet S1D13521 controller does not support I2C writes nor I2C reads from addressed
registers, therefore the TPS65182/TPS65182B I2C interface has been modified and the reading the temperature
data is reduced to two steps:
1. Send device address, R/nW set high (read command)
2. Read the data from the slave. The slave will respond with data from TMST_VALUE register address.
14
Copyright 2010, Texas Instruments Incorporated
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