参数资料
型号: MIC2184YQS TR
厂商: Micrel Inc
文件页数: 5/12页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 16-QSOP
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 440kHz
占空比: 100%
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-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
其它名称: MIC2184YQSTR
MIC2184YQSTR-ND
MIC2184
Micrel, Inc.
Parameter
Condiion
Min
Typ
Max
Units
Soft Start
Soft Start Current
Current Limit
5
μ A
Current Limit Threshold Voltage
Voltage on CSH-CSL to trip current limit
100
mV
Error Amplifier
Error Amplifier Gain
Current Amplifier
Current Amplifier Gain
Oscillator Section
20
3.0
V/V
V/V
Oscillator Frequency (f O )
360
400
440
kHz
Maximum Duty Cycle
Minimum On Time
V FB = 1.0V
V FB = 1.5V
100
185
%
ns
Freq/2 Frequency (f O )
Frequency Foldback Threshold
V FREQ/2 = 5V
Measured on FB
170
200
0.3
230
kHz
V
Frequency Foldback Frequency
90
kHz
SYNC Threshold Level
SYNC Input Current
SYNC Minimum Pulse Width
0.6
200
1.4
0.1
2.2
5
V
μ A
ns
SYNC Capture Range
Note 5
f O +15 %
600
kHz
FreqOut Output
FreqOut Frequency
FreqOut Current Drive
Note 6
Sink
Source
f O / 2
8
–6
kHz
mA
mA
Gate Drivers
Rise/Fall Time
C L = 3300pF
50
ns
Output Driver Impedance
Source; V IN P = 12V
Sink; V IN P = 12V
Source; V IN P = 5V
Sink; V IN P = 5V
1.8
1.6
2.6
2.4
4
3.5
?
?
?
?
Note 1:
Note 2.
Note 3.
Note 4:
Note 5:
Note 6:
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when
operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction
temperature, 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 I(V IN P) vs. V IN P.
See application information for limitations on maximum operating frequency.
The frequency on FreqOut is half the frequency of the oscillator, or half the frequency of the external Sync signal.
April 2005
5
M9999-042205
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