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参数资料
| 型号： | MAX5053BEUA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/13页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST ISO PWM 8-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 290kHz |
| 占空比： | 76% |
| 电源电压： | 10.8 V ~ 24 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
Current-Mode PWM Controllers with an Error
Amplifier for Isolated/Nonisolated Power Supplies
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +12V (for MAX5052, V IN must first be brought up to 23.6V for startup), 10nF bypass capacitors at V IN and V CC , C NDRV = 0,
V UVLO = +1.4V, V FB = +1.0V, V COMP = floating, V CS = 0V, typical values are measured at T A = +25°C, T A = -40°C to + 85°C, unless
otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
V CS
262
291
320
mV
CS Input Bias Current
Propagation Delay From
Comparator Input to NDRV
I CS
t PWM
V CS = 0V
50mV overdrive
-2
60
+2
μA
ns
Switching Frequency
Maximum Duty Cycle
f SW
D MAX
MAX505_A
MAX505_B
230
262
50
75
290
50.5
76
kHz
%
V IN CLAMP VOLTAGE
V IN Clamp Voltage
V INC
2mA sink current, MAX5052 only (Note 3)
24.1
26.1
29.0
V
ERROR AMPLIFIER
Voltage Gain
Unity-Gain Bandwidth
Phase Margin
FB Input Offset Voltage
R LOAD = 100k ?
R LOAD = 100k ? , C LOAD = 200pF
R LOAD = 100k ? , C LOAD = 200pF
80
2
65
3
dB
MHz
degrees
mV
COMP Pin Clamp Voltage
Source Current
Sink Current
High
Low
2.2
0.4
0.5
0.5
3.5
1.1
V
mA
mA
Reference Voltage
V REF
(Note 2)
1.218
1.230
1.242
V
Input Bias Current
COMP Short-Circuit Current
THERMAL SHUTDOWN
Thermal-Shutdown Temperature
Thermal Hysteresis
DIGITAL SOFT-START
Soft-Start Duration
Reference Voltage Steps During
Soft-Start
Reference Voltage Step
8
130
25
15,872
31
40
50
nA
mA
°C
°C
clock
cycles
steps
mV
Note 1: All devices are 100% tested at T A = +85°C. All limits over temperature are guaranteed by characterization.
Note 2: V REF is measured with FB connected to the COMP pin (see Functional Diagram ).
Note 3: The MAX5052 is intended for use in universal input power supplies. The internal clamp circuit is used to prevent the boot-
strap capacitor (C1 in Figure 1) from charging to a voltage beyond the absolute maximum rating of the device when
EN/UVLO is low. The maximum current to V IN (hence to clamp) when UVLO is low (device in shutdown) must be externally
limited to 2mA, max. Clamp currents higher than 2mA may result in clamp voltage higher than 30V, thus exceeding the
absolute maximum rating for V IN . For the MAX5053, do not exceed the 24V maximum operating voltage of the device.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5053BEUA+ | 功能描述:电流型 PWM 控制器 w/Error Amplifier RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5053BEUA+T | 功能描述:电流型 PWM 控制器 w/Error Amplifier RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5053BEUA-T | 功能描述:电流型 PWM 控制器 w/Error Amplifier RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5054 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:4A, 20ns, Dual MOSFET Drivers |
| MAX5054_10 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:4A, 20ns, Dual MOSFET Drivers |
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