参数资料
型号: MIC38HC45YM TR
厂商: Micrel Inc
文件页数: 4/8页
文件大小: 0K
描述: IC REG CTRLR BST FLYBK ISO 8SOIC
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 500kHz
占空比: 50%
电源电压: 7.6 V ~ 20 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
其它名称: MIC38HC45YMTR
MIC38HC45YMTR-ND
MIC38HC42/3/4/5
Absolute Maximum Ratings
Zener Current (V DD ) ................................................... 30mA
Operation at ≥ 18V may require
special precautions (Note 6).
Supply Voltage (V DD ), Note 6 ....................................... 20V
Switch Supply Voltage (V D ) .......................................... 20V
Current Sense Voltage (V ISNS ) ..................... –0.3V to 5.5V
Feedback Voltage (V FB ) ................................ –0.3V to 5.5V
Output Current, 38HC42/3/4/5 (I OUT ) .............................. 1A
Micrel, Inc.
Operating Junction Temperature (T J ) ....................... 150 ° C
Package Thermal Resistance
8-Pin Plastic DIP ( θ JA ) ....................................... 125 ° C/W
8-Pin MM8? ( θ JA ) ............................................. 250 ° C/W
8-Pin SOIC ( θ JA ) ............................................... 170 ° C/W
14-Pin Plastic DIP ( θ JA ) ....................................... 90 ° C/W
14-Pin SOIC ( θ JA ) ............................................. 145 ° C/W
Storage Temperature (T A ) ....................... –65 ° C to +150 ° C
Electrical Characteristics
V DD = 15V, Note 4 ; R T = 9.09k ? ; C T = 3.3nF; –40 ° C ≤ T A ≤ 85 ° C; unless noted
Parameter
Test Conditions
Min
Typ
Max
Units
Reference Section
Output Voltage
Line Regulation
Load Regulation
Temp. Stability
Total Output Variation
Output Noise Voltage
T A = 25 ° C, I O = 1mA
12V ≤ V DD ≤ 18V, I O = 5 μ A, Note 6
1 ≤ I O ≤ 20mA
Note 1
Line, Load, Temp., Note 1
10Hz ≤ f ≤ 10kHz, T A = 25 ° C, Note 1
4.90
4.82
5.00
2
1
0.2
50
5.10
20
25
5.18
V
mV
mV
mV/ ° C
V
μ V
Long Term Stability
Output Short Circuit
T A = 125 ° C, 1000 hrs., Note 1
–30
5
–80
25
–180
mV
mA
Oscillator Section
Initial Accuracy
Voltage Stability
Temp. Stability
Clock Ramp
Reset Current
Amplitude
T A = 25 ° C, Note 5
12 ≤ V DD ≤ 18V, Note 6
T MIN ≤ T A ≤ T MAX , Note 1
T A = 25 ° C, V RT/CT = 2V
T A = T MIN to T MAX
V RT/CT peak to peak
49
7.7
7.2
52
0.2
0.04
8.4
8.4
1.9
55
1.0
9.0
9.5
kHz
%
%/ ° C
mA
mA
Vp-p
Error Amp Section
Input Voltage
Input Bias Current
A VOL
Unity Gain Bandwidth
PSRR
Output Sink Current
Output Source Current
V OUT High
V OUT Low
V COMP = 2.5V
V FB = 5.0V
2 ≤ V O ≤ 4V
Note 1
12 ≤ V DD ≤ 18V
V FB = 2.7V, V COMP = 1.1V
V FB = 2.3V, V COMP = 5V
V FB = 2.3V, R L = 15k to ground
V FB = 2.7V, R L = 15k to V REF
2.42
65
0.7
60
2
–0.5
5
2.50
–0.1
90
1.0
14
–1
6.8
0.1
2.58
–2
1.1
V
μ A
dB
MHz
dB
mA
mA
V
V
M9999-042205
4
April 2005
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