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参数资料
| 型号： | MIC3838YMM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR ISO PWM 10-MSOP |
| 标准包装： | 2,500 |
| PWM 型： | 电流/电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1MHz |
| 占空比： | 50% |
| 电源电压： | 2 V ~ 14 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： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC3838YMMTR MIC3838YMMTR-ND |
MIC3838/3839
Micrel
Parameter
Condition
Min
Typ
Max
Units
Undervoltage Lockout Section
Start Threshold
Minimum Operating Voltage
After Start
Hysteresis
MIC3838, Note 11
MIC3839
MIC3838
MIC3839
MIC3838
MIC3839
11.5
4.1
7.6
3.9
3.5
0.1
12.5
4.3
8.3
4.1
4.2
0.2
13.5
4.5
9
4.3
5.1
0.3
V
V
V
V
V
V
Soft Start Section
COMP Rise Time
FB = 1.8V, Rise from 0.5V to 3V
2.5
20
ms
Overall Section
Startup Current
Operating Supply Current
V DD < Start Threshold (MIC3839)
FB = 0V, Ramp = I LIM = 0V, Notes 11, 12
130
1.5
260
2
μ A
mA
V DD Zener Shunt Voltage
I DD = 10mA, Note 13
13
14
15
V
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
Note 7.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Maximum operating voltage is equal to the V DD (zener) shunt voltage. When operating at or near the shunt voltage, care must be taken to limit
the V DD pin current less than the 20mA V DD maximum current rating.
Specification for packaged product only.
Measured at RC.
COMP pin is internally clamped to 3.65V(typ.). COMP pin source current is measured at V COMP = 3.0V to avoid interferring with clamp.
Minimum source current is higher as V COMP approaches V CLAMP .
Note 8.
Gain is defined by A =
? V COMP
? V CS
, 0 ≤ V CS ≤ 0.4V.
Note 9.
Parameter measured at trip point of latch with FB at 0V
Note 10. The internal current sink on the Ramp and I LIM pin are designed to discharge an external filter capacitor. It is not intended to be a DC sink
path. Internal discharge FET should be able to discharge the Volt-Sec clamp and feed-forward circuits in the figure below within 50ns.
Note 11. For MIC3838, set V DD above the start threshold before setting at 10V.
Note 12. Does not include current in the external oscillator network.
Note 13. Start threshold and Zener Shunt threshold track one another.
April 2005
5
MIC3838/3839
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC3839 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Flexible Push-Pull PWM Controller |
| MIC3839BMM | 功能描述:IC REG CTRLR ISO PWM 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 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 ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| MIC3839BMM TR | 功能描述:IC REG CTRLR ISO PWM 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 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 ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| MIC3839YMM | 功能描述:DC/DC 开关控制器 Push-Pull DC/DC Controller (Lead Free) 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 |
| MIC3839YMM TR | 功能描述:DC/DC 开关控制器 Push-Pull DC/DC Controller (Lead Free) 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 |
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