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参数资料
| 型号： | MAX17500AEVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION FOR MAX17500 |
| 标准包装： | 1 |
| 主要目的： | DC/DC 转换器 |
| 输出及类型： | 2，隔离 |
| 输出电压： | 5V，15V |
| 电流 - 输出： | 1.5A，100mA |
| 输入电压： | ±36 V ~ 72 V |
| 稳压器拓扑结构： | 回扫 |
| 频率 - 开关： | 350kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX17500A |
Current-Mode PWM Controllers with
Programmable Switching Frequency
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +12V (for MAX17500, bring V IN up to 23.6V for startup), 10nF bypass capacitors at IN and V CC , R12 = 15k ? (MAX17499A/
MAX17500A), R12 = 7.5k ? (MAX17499B/MAX17500B), R15 = 1k ? , C6 = 100nF (see the Typical Application Circuit), NDRV = open,
V UVLO/EN = +1.4V, V FB = +1.0V, COMP = open, V CS = 0V, T A = -40°C to +125°C, unless otherwise noted. Typical values are at T A =
+25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Oscillator Frequency Range
Oscillator Frequency Accuracy
f OSC
f OSC = 200kHz to 800kHz
f OSC = 50kHz to 2500kHz
50
-10
-20
2500
+10
+20
kHz
%
NDRV Switching Frequency
(Note 4)
Maximum Duty Cycle
f SW
D MAX
MAX17499A/MAX17500A, f SW = f OSC /2
MAX17499B/MAX17500B, f SW = f OSC /4
MAX17499A/MAX17500A
MAX17499B/MAX17500B
25
12.5
50
75
625
625.0
kHz
%
Note 1: All devices are 100% tested at T A = +125°C. All limits over temperature are guaranteed by characterization.
Note 2: The MAX17500 is intended for use in universal input power supplies. The internal clamp circuit at IN is used to prevent the
bootstrap capacitor (C1 in Figure 1) from charging to a voltage beyond the absolute maximum rating of the device when
UVLO/EN is low (shutdown mode). Externally limit the maximum current to IN (hence to clamp) to 2mA maximum when
UVLO/EN is low. Clamp currents higher than 2mA may result in a clamp voltage higher than 30V, thus exceeding the
absolute maximum rating for IN. For the MAX17499, do not exceed the 24V maximum operating voltage of the device.
Note 3: V REF is measured with FB connected to COMP (see the Functional Diagram).
Note 4: The oscillator in the MAX17499A/MAX17500A is capable of operating up to 2500kHz. However, the NDRV switching fre-
quency is limited to operate up to 625kHz. Thus, the oscillator frequency for the MAX17499A/MAX17500A must be limited to
1250kHz (maximum).
Typical Operating Characteristics
(V UVLO/EN = +1.4V, V FB = +1V, COMP = open, V CS = 0V, T A = +25°C, unless otherwise noted.)
BOOTSTRAP UVLO WAKE-UP LEVEL
vs. TEMPERATURE
BOOTSTRAP UVLO SHUTDOWN LEVEL
vs. TEMPERATURE
UVLO/EN WAKE-UP THRESHOLD
vs. TEMPERATURE
21.8
MAX17500 V IN RISING
10.3
MAX17500 V IN FALLIN G
1.236
UVLO/EN RISING
21.7
21.6
21.5
21.4
21.3
10.1
9.9
9.7
9.5
9.3
1.234
1.232
1.230
1.228
1.226
1.224
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17500AEVKIT+ | 功能描述:电流型 PWM 控制器 w/Prog Switch Frequency 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 |
| MAX17500BAUB+ | 功能描述:电流型 PWM 控制器 电流型 PWM 控制器 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 |
| MAX17500BAUB+T | 功能描述:电流型 PWM 控制器 电流型 PWM 控制器 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 |
| MAX17500BEUB+ | 功能描述:电流型 PWM 控制器 w/Prog Switch Frequency 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 |
| MAX17500BEUB+T | 功能描述:电流型 PWM 控制器 w/Prog Switch Frequency 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 |
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