參數(shù)資料
型號(hào): TPS65040ZQER
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 8-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA71
封裝: 5 X 5 MM, 0.50 MM PITCH, GREEN, PLASTIC, MICRO, BGA-71
文件頁(yè)數(shù): 58/73頁(yè)
文件大?。?/td> 1928K
代理商: TPS65040ZQER
SUB
BANDGAP
MAIN
BANDGAP
PowerSupply
Voltage
Detecter
COVREF1
0.01uF
VBN1
VREF1
VREF2
GND1
SBG_EN
MBG_EN
Bias
Current
BuckBoost
DC/DCConverter
LDOs,PAVREF,
AFCDAC
r[PSCNTDC/DC]
CCLK
CDATA
CSTB
SerialInterface
SBG_ENandMBG_EN
comefromthecontrol
logicblock.
COVREF2
0.1uF
SLVS708B – NOVEMBER 2006 – REVISED APRIL 2007
Figure 82. Reference Block Diagram
See the following tables for bandgap information:
Table 18– Sub Bandgap Power-Up Condition
Table 19– Main bandgap Power-Up Condition (REG_EN=VIO1V8=Hi)
Table 20– Main Bandgap Power-Down Condition (REG_EN=VIO1V8=Hi)
Table 21– External Pin Control
Table 22– VREF1/VREF2 BG Buffer Power-Up Condition
Table 18. Sub Bandgap Power-Up Condition
PIN
CONDITION
MBG(1)
SBG(2)
REG_EN
Low
OFF
High
ON
(1)
MBG: Main Bandgap
(2)
SBG: Sub Bandgap
61
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