参数资料
型号: MIC2186BQS TR
厂商: Micrel Inc
文件页数: 4/15页
文件大小: 0K
描述: IC REG CTRLR BST FLYBK CM 16QSOP
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 440kHz
占空比: 85%
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: MIC2186BQSTR
MIC2186BQSTR-ND
MIC2186
Micrel, Inc.
Parameter
Condition
Min
Typ
Max
Units
Enable/UVLO
Enable Input Threshold
UVLO Threshold
UVLO Hysteresis
Enable Input Current
V EN/UVLO = 5V
0.6
1.4
0.9
1.5
140
0.2
1.2
1.6
5
V
V
mV
μ A
Soft Start
Soft Start Current
Current Limit
5
μ A
Current Limit Threshold Voltage
(Voltage on CSH to trip current limit)
80
100
120
mV
Error Amplifier
Error Amplifier Gain
Current Amplifier
Current Amplifier Gain
SKIP Input
20
3.7
V/V
V/V
SKIP Threshold
SKIP Input Current
V SKIP = 3V
0.6
1.4
0.1
2.2
5
V
μ A
HIDC Input
HIDC Threshold
0.6
1.4
2.2
V
Oscillator Section
Oscillator Frequency (f O )
Maximum Duty Cycle
V FB = 1.0V, V HIDC = 3V
360
400
85
440
kHz
%
V FB = 1.0V, V HIDC = 0V
50
Minimum On Time
V FB = 1.5V, V HiDC = 3V
180
ns
FREQ/2 Frequency (f O )
Frequency Foldback Threshold
Frequency Foldback Frequency
SYNC Threshold Level
SYNC Input Current
V HiDC = 3V, V FREQ/2 = 3V
Measured on FB
V HiDC = 3V, V FREQ/2 = 0V
170
0.6
200
0.3
90
1.4
0.1
230
2.2
5
kHz
V
kHz
V
μ A
SYNC Minimum Pulse Width
200
ns
SYNC Capture Range
Note 4
f O + 15 %
600
kHz
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.
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 limitations on maximum operating frequency.
M9999-042205
4
April 2005
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