参数资料
型号: MIC2185BM TR
厂商: Micrel Inc
文件页数: 4/15页
文件大小: 0K
描述: IC REG CTRLR BST PWM CM 16-SOIC
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 440kHz
占空比: 95%
电源电压: 2.9 V ~ 14 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
其它名称: MIC2185BMTR
MIC2185BMTR-ND
MIC2185
Micrel, Inc.
Parameter
Condition
Min
Typ
Max
Unit
Soft Start
Soft Start Current
Current Limit
5
μA
Current Limit Threshold Voltage
Voltage on CSH to trip current limit
100
mV
Error Ampli?er
Error Ampli?er Gain
Current Ampli?er
Current Ampli?er Gain
SKIP Input
20
3.7
V/V
V/V
SKIP Threshold
SKIP Input Current
Oscillator Section
V SKIP = 3V
0.6
1.4
0.1
2.2
5
V
μA
Oscillator Frequency (f S )
Maximum Duty Cycle
Minimum On Time
FREQ/2 frequency (f S )
Frequency Foldback Threshold
Frequency Foldback Frequency
SYNC Threshold Level
SYNC Input Current
V FB = 1.0V
V FB = 1.5V
V FREQ/2 =3V
Measured at FB pin
V FREQ/2 =0V
360
170
0.6
400
85
180
200
0.3
90
1.4
0.1
440
230
2.2
5
kHz
%
ns
V
kHz
V
μA
SYNC Minimum Pulse Width
200
ns
SYNC Capture Range
Gate Drivers (OUTN and OUTP)
Rise/Fall Time
Driver Non-overlap Time
Output Driver Impedance
Note 4
C L = 3300pF
V IN P = 12V
V IN P = 5V
Source; V IN P = 12V
Sink; V IN P = 12V
Source; V IN P = 5V
Sink; V IN P = 5V
f O +15 %
50
70
90
4
3
5
5
600
8
7
11
11
kHz
ns
ns
ns
Ω
Ω
Ω
Ω
Note 1.
Note 2.
Note 3.
Note 4.
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical speci?cations do not apply when
operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction tempera-
ture, T J(max) , the junction-to-ambient thermal resistance, θ JA , and the ambient temperature, T A .
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended.
See application information for limitations on maximum operating frequency.
MIC2185
4
October 2005
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