參數(shù)資料
型號: TPS65023QRSBRQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, PQCC40
封裝: 5 X 5 MM, GREEN, PLASTIC, WQFN-40
文件頁數(shù): 38/54頁
文件大?。?/td> 1546K
代理商: TPS65023QRSBRQ1
VCC/VINDCDC1
DCDC1_EN
VDCDC1
1.20V
VCC/VINDCDC1
DCDC1_EN
I2CBus
DEF_CORE
VDCDC1
??
0x1F
0x11
0x10
??
0x1E
0x1F
0x10
1.20V
1.225V
1.20V
PullDCDC1_ENHigh
WriteDEF_COREto0x10
WriteCON_CTRL [7]to1
WriteDEF_COREto0x10
PullDCDC1_ENHigh
VCC/VINDCDC1
DCDC1_EN
HOT_RESET
VDCDC1
1.225V
1.20V
1.225V
1.20V
www.ti.com
SLVS927C – MARCH 2009 – REVISED MAY 2010
Workaround 1: Tie DCDC1_EN to VINDCDC1 (Figure 38)
Figure 38. Workaround 1
Workaround 2: Write the correct voltage to the DEF_CORE register via I2C. This can be done before or after the
converter is enabled. If written before the enable, the only bit changed is DEF_CORE[0]. The voltage will be 1.2
V, however, when the enable is pulled high (Figure 39).
Figure 39. Workaround 2
Workaround 3: Generate a HOT_RESET after enabling DCDC1 (Figure 40)
Figure 40. Workaround 3
Copyright 2009–2010, Texas Instruments Incorporated
43
Product Folder Link(s): TPS65023-Q1
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