Microchip MIC4100/1/3/4 Handleiding

Microchip Niet gecategoriseerd MIC4100/1/3/4

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MIC4100/1/3/4
Family Evaluation Board
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
June 2008 M9999-061708-C
General Description
The MIC4100, MIC4101, MIC4103 and MIC4104 are a
family of high-frequency, 100V MOSFET drivers. Each part
contains a high-side and low-side driver and will drive
many switching power supply topologies. Refer to the
MIC4100/1 and MIC4103/4 specifications for detailed
information.
This evaluation board provides a platform for evaluating
any of the drivers. The evaluation board schematic is
shown in Figure 1. A 1µF, 100V ceramic capacitor is
connected between the “HV Supply Input” and “Ground”
terminals and provides high frequency decoupling on the
board. 0.1µf capacitors are used for decoupling the VDD
and HB pins of the driver. 100V, N-Channel, SO-8 FETs
are included with the board.
Specifications
Control IC (refer to board for part ID):
MIC4100/1 or MIC4103/4
Power Supply Topology:
Drives an on-board MOSFET Bridge
Recommended “HV Supply” Terminal Voltage:
8V to 100V
Maximum Recommended “VDD” Terminal Voltage:
16V
Maximum “High Side FET Source” Terminal Voltage:
100V
Maximum HI/LI/LS Terminal Voltage:
VDD
Precautions
The evaluation board does not have input reverse polarity
protection. Applying a negative voltage at the “HV Supply”
or “VDD” terminals (with respect to the GND terminal) may
permanently damage the components on the board. The
voltage on the HI and LI terminals should not exceed the
“VDD” terminal voltage.
Requirements
At a minimum, the evaluation board requires an 8V to 16V
supply to power the MIC410x driver. Another supply (up to
100V) may be used to power the MOSFETs at the “HV
Supply” terminal. A pulse generator or the output of a
PWM control IC may be connected to the HI and/or LI
terminals. The board can be used with any of the 4 driver
IC’s.
MIC4100/3: The HI and LI inputs have a CMOS-
compatible threshold. The high-side and low-side drivers
are independently controlled by the HI and LI inputs. The
inputs may be connected to separate PWM sources or can
be connected together.
MIC4101/4: Same as the MIC4100/3 but the inputs have
a TTL-compatible threshold.
Getting Started
The simplest way to observe driver operation is to connect
the “High Side FET Source” terminal to ground (or any
voltage potential under 100V) and apply a PWM signal to
the “HI” and/or “LI” input terminals. DC and AC parameters
can be measured in this configuration. The included SO-8
MOSFETs can be removed or replaced with different
FETs. D2PAK locations are provided on the back of the
board.
The source terminal of the high-side FET and drain
terminal of the low-side FET, are î‹‹oating and accessible
through the board terminals. This allows the board to be
used with different power topologies such as the
synchronous buck, half-bridge, full-bridge or two transistor
forward converter.
Micrel, Inc. MIC4100/1/3/4 Evaluation Board
June 2008 2 M9999-061808-C
Ordering Information
Part Number Description Package
MIC4100YM CMOS Input, 3Ω Pull-down 8-Pin SOIC
MIC4101YM TTL Input, 3Ω Pull-down 8-Pin SOIC
MIC4103YM CMOS Input, 1.25Ω Pull-down 8-Pin SOIC
MIC4104YM TTL Input, 1.25Ω Pull-down 8-Pin SOIC
MIC4100YM EV Evaluation Board EVB Kit
MIC4101YM EV Evaluation Board EVB Kit
Evaluation Board Schematic
3
LI
VSS
HI
VDD
HS
LO
HO
HB
VDD
1
5
7
6 4
8
2
2
3
1
2
3
1
U1
MIC4100/1YM/BM
C1
0.1µF
C2
0.1µF
J1
V
DD
C3
1µF/100V
Q1-A
OPEN
Q2-A
OPEN
5-8
1-3
4
Q2
SI4484EY
J3
J4
5-8
1-3
4
Q1
SI4484EY
J6
HV Supply
J7
High-Side FET Source
J8
Low-Side FET Source
J2
Ground
Micrel, Inc. MIC4100/1/3/4 Evaluation Board
June 2008 3 M9999-061808-C
Bill of Materials
Item Part Number Manufacturer Description Qty
C1, C2 VJ0603Y104KXXAT Vishay
(1) 0.1µF/25V, X7R, Size 0603, Ceramic Capacitor 2
C4532X7R2A105M TDK(2)
C3225X7R2A105M TDK(2)
C3
GRM55DR72A105KA01B Murata
(3)
0.1µF/100V, X7R, Ceramic Capacitor 1
Q1, Q2 Si4484EY Vishay Siliconix
(1) 100V N-Channel MOSFET 2
Q1A, Q2A Vishay Siliconix
(1) OPEN location for D2PAK FETs 2
R3 CRCW06033K83FKEA Vishay Dale
(4) 3.83k, 1%, Size 0603, Resistor 1
R4 CRCW06032K49FKEA Vishay Dale
(4) 2.49k, 1%, Size 0603, Resistor 1
MIC4100YM
MIC4101YM
MIC4103YM*
U1
MIC4104YM*
Micrel(4) Buck Controller 1
Notes:
1. Vishay: www.vishay.com
2. TDK: www.tdk.com
3. Murata: www.murata.com
4. Micrel: www.micrel.com
* User has to order IC separately

Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: MIC4100/1/3/4

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