MIC38C42BM Micrel Inc, MIC38C42BM Datasheet - Page 6
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MIC38C42BM
Manufacturer Part Number
MIC38C42BM
Description
IC CTRLR PWM CURRENT MODE 8-SOIC
Manufacturer
Micrel Inc
Datasheet
1.MIC38C42YN.pdf
(11 pages)
Specifications of MIC38C42BM
Duty Cycle
96%
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Voltage - Supply
9 V ~ 20 V
Buck
Yes
Boost
Yes
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
Frequency-max
500kHz
Number Of Pwm Outputs
1
On/off Pin
No
Adjustable Output
No
Switching Freq
500KHz
Operating Supply Voltage (max)
20V
Output Current
500A
Synchronous Pin
No
Rise Time
40ns
Fall Time
30ns
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MIC38C42BM
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
MIC38C42/3/4/5
Typical Characteristics
M9999-091107
100
1.2
1.0
0.8
0.6
0.4
0.2
1x10
10
0
1
vs. Error Amplifier Output
0
OSCILLATOR FREQUENCY (Hz)
ERROR AMPLIFIER OUTPUT (V)
Current Sense Amplifier
1.8nF
4
Oscillator Frequency
V
DD
4.7nF
125°C
Configuration
= 15V
2
10nF
-50°C
4
1x10
25°C
200pF
5
470pF
6
1nF
5x10
8
5
100
120
100
10
80
60
40
20
1x10
MIC38C42/43 Output Dead Time
1
0
-60 -30
Current vs. Temperature
Short-Circuit Reference
vs. Oscillator Frequency
10nF
4
V
DD
V
4.7nF
DD
TEMPERATURE (°C)
= 15V
FREQUENCY (Hz)
= 15V
0
30
6
1x10
60
18nF
5
1nF
90 120 150
470pF
200pF
1x10
6
-10
-15
9.0
8.8
8.6
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
25
20
15
10
-5
5
0
-60 -30
0.0
Current vs. Temperature
V
C
Oscillator Discharge
D
L
= 1nF
0.2
= 15V
Output Waveform
TEMPERATURE (°C)
0
MIC38C4x
0.4
TIME (µs)
30
60
0.6
V
V
September 2007
DD
OSC
90 120 150
= 15V
= 2V
0.8
Micrel, Inc.
1.0