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参数资料
| 型号： | MAX15002ATL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/29页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 40-TQFNEP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| PWM 型： | 电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 2.2MHz |
| 电源电压： | 5.5 V ~ 23 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 包装： | 管件 |
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MAX15002
Dual-Output Buck Controller with
Tracking/Sequencing
RATIOMETRIC TRACKING
V IN
EN1
EN/TRACK2
COINCIDENT TRACKING
V IN
EN1
V OUT1
R A
EN/TRACK2
PGOOD SEQUENCING
V IN
EN1
REG
SEL
REG
R B
P GOOD1
EN/TRACK2
V OUT2
FB2
SEL
R A
R B
REG
SEL
Figure 2. Ratiometric Tracking, Coincident Tracking, PGOOD Sequencing Configurations
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,
Maxim Integrated
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 N CL is cleared
(see Figure 3). Hiccup mode protects against a contin-
uous output short circuit.
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15002ATL+ | 功能描述:DC/DC 开关控制器 Dual-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX15002ATL+T | 功能描述:DC/DC 开关控制器 Dual-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX15003ATM+ | 功能描述:DC/DC 开关控制器 Triple-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX15003ATM+T | 功能描述:DC/DC 开关控制器 Triple-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX15003EVKIT+ | 功能描述:电源管理IC开发工具 MAX15003 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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