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PDF MIK3715N Data sheet ( Hoja de datos )
| Número de pieza | MIK3715N | |
| Descripción | COMPLEMENTARY SWITCH FET DRIVERS | |
| Fabricantes | MIKRON | |
| Logotipo |  |
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DATA SHEET
03 NOVEMBER 2003
NO. 00022
REV 1-03
REPLACEMENT OF:
UC 3714
UC 3715
MIK371x family • COMPLEMENTARY SWITCH FET DRIVERS
MIK371x family
COMPLEMENTARY SWITCH FET DRIVERS
CONTENTS
DESCRIPTION
FEATURES
PIN CONNECTION AND DESCRIPTION
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
TYPICAL CHARACTERISTICS
TIME RELATIONSHIPS
T1 DELAY, T2 DELAY vs. RT
ICC vs. SWITCHING FREQUENCY
ICC VS. RT WITH OPPOSITE RT = 50K
T1 DEADBAND VS. TEMPERATURE AUX TO PWR
T2 DEADBAND VS. TEMPERATURE PWR TO AUX
TYPICAL APPLICATIONS
TYPICAL APPLICATION WITH TIMED DELAYS
Page
1
1
2
2
3
3
4
4
4
4
4
5
5
5
5
CONTENTS
Page
USING THE TIMER INPUT FOR ZERO-VOLTAGE
SENSING
SELF-ACTUATED SLEEP MODE WITH THE ABSENCE OF
AN INPUT PWM SIGNAL. WAKE UP OCCURS WITH
THE FIRST PULSE WHILE TURN-OFF IS DETERMINED
BY THE (RTO CTO) TIME CONSTANT
5
5
USING AS A COMPLEMENTARY SYNCHRONOUS
RECTIFIER SWITCH DRIVER WITH N-CHANNEL FETS
SYNCHRONOUS RECTIFIER APPLICATION WITH A
CHARGE PUMP TO DRIVE THE HIGH-SIDE N-CHANNEL
BUCK SWITCH
TYPICAL FORWARD CONVERTER TOPOLOGY WITH
ACTIVE RESET PROVIDED BY THE MIK3714 DRIVING
AN N-CHANNEL SWITCH (Q1) AND A P-CHANNEL
AUXILIARY SWITCH (Q2)
5
5
5
PHYSICAL DIMENSIONS AND MARKING
DIAGRAMS
6
DIP-8
6
SOP-8
6
ORDERING INFORMATION
6
DESCRIPTION
The MIK3714 and the MIK3715 are two families of high
speed drivers. These are designed to provide drive
waveforms for complementary switches.
Complementary switch configurations are commonly
used in synchronous rectification circuits and active
clamp/reset circuits, which can provide zero voltage
switching. In order to facilitate the soft switching
transitions, independently programmable delays
between the two output waveforms are provided on
these drivers. The delay pins also have true zero
voltage sensing capability which allows immediate
activation of the corresponding switch when zero
voltage is applied. These devices require a PWM-type
input to operate and can be interfaced with
commonly available PWM controllers.
In the MIK3714 series, the AUX output is inverted to
allow driving a P-channel MOSFET. In the MIK3715
series the two outputs are configured in a true
complementary fashion.
FEATURES
• Single Input (PWM and TTL Compatible)
• High Current Power FET Driver, 1.0A Source/2A
Sink
• Auxiliary Output FET Driver, 0.5A Source/1A Sink
• Time Delays Between Power and Auxiliary
Outputs Independently Programmable from 50 ns
to 500 ns
• Time Delay or True Zero-Voltage Operation
Independently Configurable for Each Output
• Switching Frequency to 1MHz
• Typical 50 ns Propagation Delays
• ENBL Pin Activates 220 µA Sleep Mode
• Power Output is Active Low in Sleep Mode
• Synchronous Rectifier Driver
1
1 page  
MIK371x family • COMPLEMENTARY SWITCH FET DRIVERS
TYPICAL CHARACTERISTICS (CONTINUED)
T1 DEADBAND VS. TEMPERATURE AUX TO PWR
600
T2 DEADBAND VS. TEMPERATURE PWR TO AUX
600
500 RT1 = 100k
500
400
300 RT1 = 50k
200
400
RT2 = 100k
300
RT2 = 50k
200
100
RT1 < 6k
0
-75 -50
RT1 = 10k
-25 0 25
TEMPERATURE (ºC)
50
75
100
RT2 < 6k
0
-75 -50
RT2 = 10k
-25 0 25
TEMPERATURE (ºC)
50
75
TYPICAL APPLICATIONS
TYPICAL APPLICATION WITH TIMED DELAYS
Vcc ! •
Vcc PWM
MIK3714/15
INPUT Vcc
•
Main
•
Power
Switch
UC3823
UC3842
MIK3842
etc.
T1 PWR
T2 AUX
Bypass
Capacitor
GND VREF
ENBL GND
RT1 RT2
•
Auxiliary
•
ZVS
Switch
GND ! •
••
USING THE TIMER INPUT FOR ZERO-VOLTAGE SENSING
MIK3714/15
T1 PWR
!!!
•
•
•
3V THRESHOLD
RT
SELF-ACTUATED SLEEP MODE WITH THE ABSENCE OF AN INPUT PWM SIGNAL
USING AS A COMPLEMENTARY SYNCHRONOUS RECTIFIER SWITCH DRIVER
WITH N-CHANNEL FETS
Vcc! •
Vcc OUT • VPWM
PWM
#PWM Control
Input Signals
Controller
D1
••
MIK3714/15
INPUT Vcc
T1 PWR
T2 AUX
ENBL GND
RT0
50k
•
CT0 RT1 RT2
0.01µF
••
•
! PWR
! AUX
WAKE UP OCCURS WITH THE FIRST PULSE WHILE TURN-OFF
IS DETERMINED BY THE (RTO CTO) TIME CONSTANT
SYNCHRONOUS RECTIFIER APPLICATION WITH A CHARGE PUMP TO DRIVE THE
HIGH-SIDE N-CHANNEL BUCK SWITCH
VIN !
MIK3715
Vcc
PWR
AUX
GND
• • Q1 • •
•
C2
•
C1
•
•
•
RG
•
•
•
••
Q2
••
L0
••
D0 C0 RL
GND !
••
• ••
TYPICAL FORWARD CONVERTER TOPOLOGY WITH ACTIVE RESET PROVIDED
BY THE MIK3714 DRIVING AN N-CHANNEL
SWITCH (Q1) AND A P-CHANNEL AUXILIARY SWITCH (Q2)
VIN !
MIK3715
Vcc
PWR
AUX
GND
• • • Q1 • •
D1
D2
•
•
D3
C2
•
C1
•
•
Q2
••
L0
••
D0 C0
VIN
!
Vcc
!
D2 L0
••
!
••
D3 C0
PWM
!
RL
ENABLE
!
MIK3714
INPUT Vcc
T1 PWR
T2 AUX
ENBL GND
C3
C2
•
D1
•
Q2
••
•
•
Q1
••
•
•!
RT1 RT2
••
•
GND !
•
• ••
VIN is limited to 10V as Vcc will rise to approximately 2VIN
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MIK3715N.PDF ] | |
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