MIC2196BM Micrel Inc, MIC2196BM Datasheet - Page 6

• Manufacturer Part Number: MIC2196BM
• Description: IC PWM BST FLYBCK CM 8SOIC
• Manufacturer: Micrel Inc

Specifications of MIC2196BM

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 440kHz
• Duty Cycle: 85%
• Voltage - Supply: 2.9 V ~ 14 V
• Buck: No
• Boost: Yes
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (3.9mm Width)
• Frequency-max: 440kHz
• Input Voltage: 14V
• Frequency: 400kHz
• Power Dissipation Pd: 285mW
• Supply Voltage Range: 2.9V To 14V
• Digital Ic Case Style: SOIC
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Functional Diagram
Micrel, Inc.
September 2008
V
IN
EN/UVLO
COMP
V
DD
3
2
5
fs/4
Osc
Corrective
Ramp
V
DD
Control
100k
Amplifier
Figure 1. MIC2196 Block Diagram
C
Error
DECOUP
gm = 0.0002
Overcurrent Reset
PWM
Comparator
On
Gain = 20
GND
GND
6
V
Bias
IN
fs/4
8
V
REF
Gain = 3.7
6
Frequency
Foldback
V
V
REF
DD
0.11V
Overcurrent
Comparator
0.3V
C
IN
OUTN
7
CS
4
V
2
fb
L1
R
SENSE
D1
C
OUT
R1
R2
V
M9999-092908
OUT
MIC2196