參數(shù)資料
型號(hào)： TPS2306EVM-001
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： TPS2306 Dual Sequencing Hot Swap Power Manager Evaluation Module and Interface Card(雙序列熱交換電源管理器件TPS2306的評(píng)估板與接口卡)
中文描述： TPS2306熱插拔雙測(cè)序電源管理評(píng)估模塊和接口卡（雙序列熱交換電源管理器件TPS2306的評(píng)估板與接口卡）
文件頁(yè)數(shù)： 15/19頁(yè)
文件大?。?/td> 462K
代理商： TPS2306EVM-001
SLUU094
15
TPS2306 Dual Sequencing Hot Swap Power Manager
If resistors R7 and R17 are left at the original values of 10 k
, equation 1 becomes:
RONB
VUP
VRAMP
VUP
10 k
For ramp-down sequencing, resistors R11 (for Channel 1) and R22 (for Channel 2) can be changed to adjust
the threshold at which the controlled channel turns off when its turnoff condition is a function of the other
channel
’
s output status. The value of R11 or R22 (R
OFFB
in the equation below) is given by equation 3.
VDN
VOFF
ROFFB
VDN
ROFFA
Where:
V
DN
= the DNx comparator reference voltage, nominally 0.5 V
V
OFF
= the desired voltage of the turnoff control channel at which the controlled channel gate drive should
be turned off
R
OFFA
= the top leg of the resistor divider, R10 or R21
If resistors R10 and R21 are left at the original value of 10 k
, equation 3 becomes:
ROFFB
VDN
VOFF
VDN
10 k
The TPS2306 data sheet specifies the minimum and maximum ramp comparator thresholds, shown in Table 9
for quick reference. Once the desired ramp dividers are determined from equations 1 and 3, the minimum and
maximum ON and OFF thresholds should be checked against the supply tolerances to ensure proper
sequencing operation over the input supply voltage range.
Table 9. Ramp-Up and Ramp-Down Comparator Specifications
PARAMETER
MIN
TYP
MAX
UNITS
VUP, rampup trip level threshold
VDN, rampdown trip level threshold
1.35
1.50
1.65
V
0.35
0.50
0.65
V
4.4
Setting the Constant-Current Mode Output Level
During an output start-up sequence, the TPS2306 linearly controls the magnitude of the output current sourced
to the loads. This maximum linear mode current, refered to as IMAX, can be set by the user with external
programming resistors. This allows flexibility in controlling the rate at which the load capacitance is charged to
steady-state levels. The current limits of the two channels can be set independently of each other. For the
TPS2306 EVM, the current limit programming resistors are R14 (to set the reference current), R3 (for
Channel 1) and R4 (for Channel 2).
(2)
(3)
(4)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS230QP 制造商:Texas Instruments 功能描述:
TPS2310IPW 功能描述:熱插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2310IPWG4 功能描述:熱插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2310IPWR 功能描述:熱插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2310IPWRG4 功能描述:熱插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
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