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MPQ18021HS-A-LF-Z

P1-P3P4-P6P7-P9P10-P12
MPQ18021A―100V, 2.5A, HIGH-FREQUENCY HALF-BRIDGE GATE DRIVER
MPQ18021A Rev. 1.0 www.MonolithicPower.com 10
12/10/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
REFERENCE DESIGN CIRCUITS
Half-Bridge Converter
In half-bridge converter topology, the MOSFETs
are alternately driven with some dead time
between signals. Therefore, INH and INL are
driven with alternating signals from the PWM
controller. The input voltage can go up to 100V in
this application.
Input Voltage
Up to 100V
Secondary
Circuit
DRVL
DRVL
INL
INH
VDD
VDDDRVL
VSS
INL
INH SW
DRVH
BST
9V -18V
4
3
2
18
7
6
5
Figure 4: Half-Bridge Converter
Two-Switch Forward Converter
In two-switch forward converter topology, both
MOSFETs turn on and off together. The input
signals (INH and INL) come from the PWM
controller, which senses the output voltage (and
output current if current-mode control is used).
The Schottky diodes clamp the reverse swing of
the power transformer and must be rated at the
input voltage. The input voltage can go up to
100V in this circuit.
INH
5
6
7
8
1
2
3
4
INL
DRVL
INH
INL
VSS
DRVL
VDD
BST
DRVH
SW
DRVL
Secondary
Circuit
VDD
Input Voltage
Up to 100V
9V - 18V
Figure 5: Two-Switch Forward Converter
MPQ18021A―100V, 2.5A, HIGH-FREQUENCY HALF-BRIDGE GATE DRIVER
MPQ18021A Rev. 1.0 www.MonolithicPower.com 11
12/10/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
Active-Clamp Forward Converter
In active-clamp forward converter topology, the
MOSFETs are driven alternately. The high-side
MOSFET and the capacitor C
reset
, losslessly reset
the power transformer.
This topology lends itself well to run at duty
cycles exceeding 50%. Therefore, the input
voltage for this application may not be able to go
to 100V.
Input Voltage
4
3
2
1
8
7
6
5
DRVL
DRVL
INL
INH
Creset
VDD
VDD
BST
DRVH
SWINH
INL
VSS
DRVL
9V - 18V
Secondary
Circuit
Figure 6: Active-Clamp Forward Converter
MPQ18021A―100V, 2.5A, HIGH-FREQUENCY HALF-BRIDGE GATE DRIVER
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MPQ18021A Rev. 1.0 www.MonolithicPower.com 12
12/10/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
PACKAGE INFORMATION
SOIC8
0.016(0.41)
0.050(1.27)
0
o
-8
o
DETAIL "A"
0.010(0.25)
0.020(0.50)
x 45
o
SEE DETAIL "A"
0.007
5
0.009
8
0.150(3.80)
0.157(4.00)
PIN 1 ID
0.050(1.27)
BSC
0.013(0.33)
0.020(0.51)
SEATING PLANE
0.004(0.10)
0.010(0.25)
0.189(4.80)
0.197(5.00)
0.053(1.35)
0.069(1.75)
TOP VIEW
FRONT VIEW
0.228(5.80)
0.244(6.20)
SIDE VIEW
14
85
RECOMMENDED LAND PATTERN
0.213(5
0.063(1.60)
0.050(1.27)
0.024(0.61)
NOTE:
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN
BRACKET IS IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLA
S
PROTRUSIONS OR GATE BURRS.
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD
F
OR PROTRUSIONS.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER F
O
SHALL BE 0.004" INCHES MAX.
5) DRAWING CONFORMS TO JEDEC MS-012,
V
ARIATI
O
6) DRAWING IS NOT TO SCALE.
0.010(0.25) BSC
GAUGE PLANE
P1-P3P4-P6P7-P9P10-P12

MPQ18021HS-A-LF-Z

Mfr. #:
Buy MPQ18021HS-A-LF-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Gate Drivers 100V 2.5A High Freq. Half-Bridge Driver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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