MIC38C45BM Micrel Inc, MIC38C45BM Datasheet - Page 4

• Manufacturer Part Number: MIC38C45BM
• Description: IC CTRLR PWM CURRENT MODE 8-SOIC
• Manufacturer: Micrel Inc

Specifications of MIC38C45BM

• 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
• Topology: Boost/Buck/Flyback/Forward
• 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

MIC38C42/3/4/5
Absolute Maximum Ratings
Zener Current (V
Supply Voltage (V
Switch Supply Voltage (V
Current Sense Voltage (V
Feedback Voltage (V
Output Current, 38C42/3/4/5 (I
Storage Temperature (T
Electrical Characteristics
V
Parameter
Reference Section
Output Voltage
Line Regulation
Load Regulation
Temp. Stability
Total Output Variation
Output Noise Voltage
Long Term Stability
Output Short Circuit
Oscillator Section
Initial Accuracy
Voltage Stability
Temp. Stability
Clock Ramp
Reset Current
Amplitude
Error Amp Section
Input Voltage
Input Bias Current
A
Unity Gain Bandwidth
PSRR
Output Sink Current
Output Source Current
V
V
M9999-091107
VOL
DD
OUT
OUT
= 15V, Note 4; R
High
Low
Operation at ≥18V may require
special precautions (Note 6).
DD
DD
T
) ................................................... 30mA
), Note 6 ........................................ 20V
FB
= 11.0k; C
) .................................–0.3V to 5.5V
A
) ......................... –65°C to +150°C
D
ISNS
) ........................................... 20V
) .......................–0.3V to 5.5V
T
OUT
= 3.3nF; –40°C ≤ T
Test Conditions
T
12V ≤ V
1 ≤ I
Note 1
Line, Load, Temp., Note 1
10Hz ≤ f ≤ 10kHz, T
T
T
12 ≤ V
T
T
T
V
V
V
2 ≤ V
Note 1
12 ≤ V
V
V
V
V
A
A
A
A
A
MIN
RT/CT
COMP
FB
FB
FB
FB
FB
) ............................. 0.5A
= 25°C, I
= 125°C, 1000 hrs., Note 1
= 25°C, Note 5
= 25°C, V
= T
O
= 5.0V
= 2.7V, V
= 2.3V, V
= 2.3V, R
= 2.7V, R
≤ T
O
MIN
≤ 20mA
DD
DD
≤ 4V
peak to peak
= 2.5V
DD
A
≤ 18V, Note 6
≤ 18V
≤ T
to T
≤ 18V, I
O
RT/CT
MAX
COMP
COMP
L
L
= 1mA
MAX
= 15k to ground
= 15k to V
, Note 1
A
= 2V
O
≤ 85°C; unless noted
= 1.1V
= 5V
A
= 5µA, Note 6
= 25°C, Note 1
REF
4
Operating Ratings
Junction Temperature (T
Package Thermal Resistance
8-Pin Plastic DIP (θ
8-Pin MSOP (θ
8-Pin SOIC (θ
14-Pin Plastic DIP (θ
14-Pin SOIC (θ
JA
JA
JA
) ................................................170°C/W
) ..............................................250°C/W
) ..............................................145°C/W
JA
JA
) .......................................125°C/W
J
) ......................................90°C/W
) ......................................... 150°C
4.90
4.82
2.42
–0.5
Min
–30
7.7
7.2
0.7
49
65
60
2
5
5.00
0.04
2.50
–0.1
Typ
–80
0.2
0.2
8.4
8.4
1.9
1.0
6.8
0.1
50
52
90
14
–1
2
1
5
September 2007
–180
Max
5.10
5.18
2.58
1.0
9.0
9.5
1.1
20
25
25
55
–2
Micrel, Inc.
mV/°C
Units
%/°C
Vp-p
MHz
kHz
mV
mV
mV
mA
mA
mA
mA
mA
µV
µA
dB
dB
%
V
V
V
V
V