MIC38C43BM Micrel Inc, MIC38C43BM Datasheet - Page 3
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MIC38C43BM
Manufacturer Part Number
MIC38C43BM
Description
IC CTRLR PWM CURR MODE HP 8SOIC
Manufacturer
Micrel Inc
Datasheet
1.MIC38C42YN.pdf
(11 pages)
Specifications of MIC38C43BM
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
96%
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MIC38C43BM
Manufacturer:
S
Quantity:
6 230
Part Number:
MIC38C43BM
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
MIC38C43BM-TR
Manufacturer:
MIC
Quantity:
20 000
Company:
Part Number:
MIC38C43BMTR
Manufacturer:
HINT
Quantity:
51
MIC38C42/3/4/5
Pin Configuration
Pin Description
September 2007
Pin Number
N, M, MM
1
2
3
4
5
6
7
8
C O M P
R T / C T
I S N S
F B
Pin Number
-1BN, -1BM
1
2
3
4
8-Pin MSOP (MM)
10
12
13
14
11
1
2
3
4
5
6
7
8
9
8-Pin SOIC (M)
8-Pin DIP (N)
MIC38C4x
Pin Name
8
7
6
5
COMP
RT/CT
PGND
AGND
VREF
ISNS
GND
OUT
VDD
NC
NC
NC
VD
NC
FB
V R E F
VDD
OUT
GND
Pin Function
Compensation: Connect external compensation network to modify the error
amplifier output.
Not internally connected.
Feedback (Input): Error amplifier input. Feedback is 2.5V at desired output
voltage.
Not internally connected.
Current Sense (Input): Current sense comparator input. Connect to current
sensing resistor or current transformer.
Not internally connected.
Timing Resistor/Timing Capacitor: Connect external RC network to select
switching frequency.
Ground: Combined analog and power ground.
Power Ground: N-channel driver transistor ground.
Analog Ground: Controller circuitry ground.
Power Output: Totem-pole output.
Power Supply (Input): P-channel driver transistor supply input. Return to
power ground (PGND).
Analog Supply (Input): Controller circuitry supply input. Return to analog
ground (AGND).
Not internally connected.
5V Reference (Output): Connect external RC network.
3
14-Pin SOIC (-1BM)
14-Pin DIP (-1BN)
M9999-091107
Micrel, Inc.