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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 36/54頁 |
| 文件大小： | 1546K |
| 代理商： | TPS65023QRHARQ1 |
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t
=2
(reset)
x128x
(1V-0.25V)xC(reset)
2 A
m
()
www.ti.com
SLVS927C – MARCH 2009 – REVISED MAY 2010
LDO1 and LDO2
The LDOs in the TPS65023 are general-purpose LDOs which are stable using ceramics capacitors. The
minimum output capacitor required is 2.2 mF. The LDOs output voltage can be changed to different voltages
between 1 V and 3.3 V using the I2C interface. Therefore, they can also be used as general-purpose LDOs in
applications powering processors different from DaVinci. The supply voltage for the LDOs needs to be connected
to the VINLDO pin, giving the flexibility to connect the lowest voltage available in the system and provides the
highest efficiency.
TRESPWRON
This is the input to a capacitor that defines the reset delay time after the voltage at VRTC rises above 2.52 V.
The timing is generated by charging and discharging the capacitor with a current of 2 mA between a threshold of
0.25 V and 1 V for 128 cycles. A 1-nF capacitor gives a delay time of 100 ms.
(9)
Where:
t(reset) is the reset delay time
C(reset) is the capacitor connected to the TRESPWRON pin
VCC Filter
An RC filter connected at the VCC input is used to keep noise from the internal supply for the bandgap and other
analog circuitry. A typical value of 10 R and 1 mF is used to filter the switching spikes, generated by the dc-dc
converters. A larger resistor than 10 R should not be used because the current into VCC of up to 3 mA causes a
voltage drop at the resistor causing the undervoltage lockout circuitry connected at VCC internally to switch off
too early.
Copyright 2009–2010, Texas Instruments Incorporated
41
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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