參數(shù)資料
型號： MAX15003
廠商： Maxim Integrated Products, Inc.
英文描述： Triple-Output Buck Controller with Tracking/Sequencing
中文描述： 三輸出buck控制器，提供跟蹤/排序功能
文件頁數(shù)： 17/32頁
文件大?。?/td> 945K
代理商： MAX15003
M
Triple-Output Buck Controller with
Tracking/Sequencing
______________________________________________________________________________________
17
Error Amplifier
The output of the internal error transconductance
amplifier (COMP_) is provided for frequency compen-
sation (see the Compensation Design Guidelines sec-
tion). The inverting input is FB_ and the output COMP_.
The error transamplifier has an 80dB open-loop gain
and a 10MHz GBW product.
Output Short-Circuit Protection
(Hiccup Mode)
The current-limit circuit employs a valley current-limiting
algorithm that either uses a shunt or the synchronous
MOSFET’s on-resistance as the current-sensing ele-
ment. Once the high-side MOSFET turns off, the volt-
age across the current-sensing element is monitored. If
this voltage does not exceed the current-limit threshold,
the high-side MOSFET turns on normally at the start of
the next cycle. If the voltage exceeds the current-limit
threshold just before the beginning of a new PWM
cycle, the controller skips that cycle. During severe
overload or short-circuit conditions, the switching fre-
quency of the device appears to decrease because the
on-time of the low-side MOSFET extends beyond a
clock cycle.
If the current-limit threshold is exceeded for more than
eight cumulative clock cycles (N
CL
), the device shuts
down (both DH and DL are pulled low) for 4096 clock
cycles (hiccup timeout) and then restarts with a soft-
start sequence. If three consecutive cycles pass with-
out a current-limit event, the count of NCL is cleared
(see Figure 3). Hiccup mode protects against a contin-
uous output short circuit.
COINCIDENT TRACKING
PGOOD SEQUENCING
EN/TRACK2
SEL
REG
V
IN
EN1
RATIOMETRIC TRACKING
R
A
R
B
R
A
R
B
R
C
R
D
V
IN
EN1
PGOOD1
EN/TRACK2
REG
V
IN
EN1
V
OUT2
FB2
V
OUT3
FB3
V
OUT1
EN/TRACK2
EN/TRACK3
R
C
R
D
EN/TRACK3
SEL
SEL
REG
PGOOD2
EN/TRACK3
REG
Figure 2. Ratiometric Tracking, Coincident Tracking, PGOOD Sequencing Configurations
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參數(shù)描述
MAX15003ATM+ 功能描述:DC/DC 開關(guān)控制器 Triple-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX15003ATM+T 功能描述:DC/DC 開關(guān)控制器 Triple-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX15003EVKIT+ 功能描述:電源管理IC開發(fā)工具 MAX15003 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MAX15004AAUE/V+ 功能描述:電流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX15004AAUE/V+T 功能描述:電流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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