參數(shù)資料
型號(hào)： TPS65023QRHARQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PQCC40
封裝： 6 X 6 MM, GREEN, PLASTIC, MO-220VJJD-2, VQFN-40
文件頁(yè)數(shù)： 35/54頁(yè)
文件大?。?/td> 1546K
代理商： TPS65023QRHARQ1
VDCDC3
DCDC3_EN
DEFDCDC3
AGND
PGND
L3
R1
R2
VO
L
CO
VCC
VINDCDC3
CI
1 F
m
10R
V(bat)
VOUT
DEFDCDCx
=V
x
R1+R2
R2
R1=R2x
VOUT
VDEFDCDCx
-R2
()
SLVS927C – MARCH 2009 – REVISED MAY 2010
www.ti.com
Output Voltage Selection
The DEFDCDC1, DEFDCDC2, and DEFDCDC3 pins are used to set the output voltage for each step-down
converter. See Table 7 for the default voltages if the pins are pulled to GND or to VCC. If a different voltage is
needed, an external resistor divider can be added to the DEFDCDCx pin as shown in Figure 36.
The output voltage of VDCDC1 is set with the I2C interface. If the voltage is changed from the default, using the
DEFCORE register, the output voltage only depends on the register value. Any resistor divider at DEFDCDC1
does not change the voltage set with the register.
Table 7.
PIN
LEVEL
DEFAULT OUTPUT VOLTAGE
VCC
1.6 V
DEFDCDC1
GND
1.2 V
VCC
3.3 V
DEFDCDC2
GND
1.8 V
VCC
3.3 V
DEFDCDC3
GND
1.8 V
Using an external resistor divider at DEFDCDCx:
Figure 36. External Resistor Divider
When a resistor divider is connected to DEFDCDCx, the output voltage can be set from 0.6 V up to the input
voltage V(bat). The total resistance (R1+R2) of the voltage divider should be kept in the 1-MR range in order to
maintain a high efficiency at light load.
V(DEFDCDCx) = 0.6 V
(8)
VRTC Output
It is recommended that a 4.7-mF (minimum) capacitor be added to the VRTC pin.
40
Copyright 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS65023-Q1
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TPS65023QRSBRQ1 功能描述:電池管理 Auto Cat 6Ch Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65023RSBG4 制造商:Texas Instruments 功能描述:
TPS65023RSBR 功能描述:電池管理 6Ch Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65023RSBRG4 功能描述:電池管理 6Ch Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65023RSBT 功能描述:電池管理 6-Channel Power Management IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
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