MIC2196BM Micrel Inc, MIC2196BM Datasheet - Page 2

• 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

Ordering Information
Pin Configuration
Pin Description
Micrel, Inc.
September 2008
Pin Number
Part Number
MIC2196BM
MIC2196YM
1
2
3
4
5
6
7
8
Pin Name
EN/UVLO
COMP
OUTN
GND
VDD
VIN
Voltage
FB
CS
Adj.
Adj.
Pin Function
Compensation (Output): Internal error amplifier output. Connect to a capacitor or
series RC network to compensate the regulator’s control loop.
Feedback (Input): Regulates FB to 1.245V.
Enable/Undervoltage Lockout (input): A low level on this pin will power down the
device, reducing the quiescent current to under 0.5μA. This pin has two separate
thresholds, below 1.5V the output switching is disabled, and below 0.9V the device is
forced into a complete micropower shutdown. The 1.5V threshold functions as an
accurate undervoltage lockout (UVLO) with 100mV hysteresis.
The (+) input to the current limit comparator. A built in offset of 100mV between CS
and GND in conjunction with the current sense resistor sets the current limit threshold
level. This is also the (+) input to the current amplifier.
3V internal linear-regulator output. VDD is also the supply voltage bus for the chip.
Bypass to GND with 1μF.
Ground.
High current drive for N-Channel MOSFET. Voltage swing is from ground to VIN.
R
Input voltage to the control IC. This pin also supplies power to the gate drive circuit.
Frequency
ON
EN/UVLO
400kHz
400kHz
is typically 3Ω @ 5V
COMP
CS
FB
1
2
3
4
8-Pin SOIC (M)
Temperature Range
–40°C to +125°C
–40°C to +125°C
IN
2
.
8 VIN
7
6
5
OUTN
GND
VDD
8-Pin SOIC
8-Pin SOIC
Package
Lead Finish
Standard
Pb-Free
M9999-092908
MIC2196