HT45B0C
MOSFET Gate Driver
Technical Document
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Features
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Three low side and high side MOSFET driver
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Low side drive supply range from 9V~20V with low
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Input logic supply range from 4.5V~5.5V
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Low voltage protection function
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24-pin SKDIP/SOP package
voltage protection
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High side driver output maximum voltage is 80V
General Description
The devices are for power MOSFET gate drivers, which
interface directly to driver the power MOSFET. There
are three high side drivers and three low side drivers to
driver six N-channel power MOSFET.
The high side driver operates up to 80 Volts. The input
logic power is from VDD, so it can easy to interface with
microcontroller.
Block Diagram
V D D
A T L
3 0 k
9
V
S S
V D A T
H ig h S id e D r iv e r
L e v e l
S h ifte r
D r iv e r
A T
V S A T
L o w
L e v e l
S h ifte r
S id e D r iv e r
D r iv e r
A B
V S S
V
3 0 k
9
A B L
D D
L o g ic
C ir c u it
V M
L o w V o lta g e
P r o te c tio n
V D D
V D B T
H ig h S id e D r iv e r
L e v e l
S h ifte r
D r iv e r
B T
V S B T
L o w
L e v e l
S h ifte r
S id e D r iv e r
D r iv e r
B B
V S S
B T L
3 0 k
9
V
S S
V
3 0 k
9
B B L
D D
L o g ic
C ir c u it
V M
V D D
V D C T
H ig h S id e D r iv e r
C T L
3 0 k
9
V
S S
L e v e l
S h ifte r
L o g ic
C ir c u it
D r iv e r
C T
V S C T
V
3 0 k
9
C B L
D D
V M
L o w
L e v e l
S h ifte r
S id e D r iv e r
D r iv e r
C B
V S S
Rev. 1.00
1
December 21, 2006
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
