MIC38HC45YM Micrel Inc, MIC38HC45YM Datasheet - Page 6
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MIC38HC45YM
Manufacturer Part Number
MIC38HC45YM
Description
Monolithic SMPS Controller ( )
Manufacturer
Micrel Inc
Datasheet
1.MIC38HC43YM_TR.pdf
(8 pages)
Specifications of MIC38HC45YM
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
50%
Voltage - Supply
7.6 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
1000A
Synchronous Pin
No
Rise Time
20ns
Fall Time
15ns
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-1519-5
MIC38HC45YM
MIC38HC45YM
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MIC38HC45YM
Manufacturer:
MICREL
Quantity:
51
MIC38HC42/3/4/5
Typical Characteristics
M9999-042205
100
1.2
1.0
0.8
0.6
0.4
0.2
0.0
10
1x10
1
0
ERROR AMPLIFIER OUTPUT (V)
OSCILLATOR FREQUENCY (Hz)
vs. Error Amplifier Output
4.7nF
Current Sense Amplifier
4
V
Oscillator Frequency
DD
10nF
125°C
= 15V
2
Configuration
-50°C
1x10
4
25°C
200pF
5
470pF
6
1nF
1.8nF
1x10
8
6
100
120
100
10
80
60
40
20
1x10
1
0
Time vs. Oscillator Frequency
MIC38C/HC42/43 Output Dead
-60 -30
Current vs. Temperature
10nF
4
Short-Circuit Reference
V
DD
V
4.7nF
DD
TEMPERATURE (°C)
= 15V
FREQUENCY (Hz)
= 15V
0
30 60 90 120 150
6
1x10
18nF
5
1nF
470pF
200pF
1x10
6
9.0
8.8
8.6
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
-10
-15
25
20
15
10
-5
5
0
-60 -30
0.0
Current vs. Temperature
V
C
D
L
Oscillator Discharge
0.2
= 1nF
= 15V
Output Waveform
TEMPERATURE (°C)
0
MIC38C4x
0.4
TIME (µs)
30 60 90 120 150
0.6
V
V
DD
OSC
= 15V
= 2V
0.8
Micrel, Inc.
April 2005
1.0