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FAN53418M 데이터시트 PDF




Fairchild Semiconductor에서 제조한 전자 부품 FAN53418M은 전자 산업 및 응용 분야에서
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부품번호 FAN53418M 기능
기능 Synchronous DC-DC MOSFET Driver
제조업체 Fairchild Semiconductor
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FAN53418M 데이터시트, 핀배열, 회로
FAN53418
Synchronous DC-DC MOSFET Driver
www.fairchildsemi.com
Features
• Drives N-channel High-Side and Low-Side MOSFETs in
a synchronous buck configuration
• Internal Adaptive “Shoot-Through” Protection
• High Switching Frequency (> 500kHz)
– 30ns Output Rise/Fall Times w/3000pF load
– 20ns Propagation Delay
• 12V High-Side and 12V Low-Side Drive
• OD input for Output Disable – allows for synchronization
with PWM controller
• SOIC-8 Package
Applications
• Multi-phase VRM/VRD regulators for Microprocessor
Power
• High Current/High Frequency DC/DC Converters
• High Power Modular Power Supplies
General Description
The FAN53418 is a high frequency, dual MOSFET driver
specifically designed to drive two power N-Channel
MOSFETs in a synchronous rectified buck converter.
These drivers combined with a FAN53168 Multi-Phase Buck
PWM controller and power MOSFETs form a complete core
voltage regulator solution for advanced microprocessors.
The FAN53418 drives both the upper and lower gates in a
synchronous rectifier to +12V. The upper gate drive imple-
ments bootstrapping with only an external capacitor and
diode required. This reduces implementation complexity
and allows the use of higher performance, cost effective,
N-Channel MOSFETs.
The output drivers in the FAN53418 have the capacity to
efficiently switch power MOSFETs at frequencies over
500kHz. Each driver is capable of driving a 3000pF load
with a ~20ns propagation delay and ~30ns transition time.
Adaptive shoot-through protection is integrated to prevent
both MOSFETs from conducting simultaneously. Addition-
ally an Output Disable function is included to synchronize
the driver with the PWM controller. The FAN53418 is
rated for operation from 0°C to +85°C and is available in a
low-cost SOIC-8 package.
Basic Application
+12V
D1 1 BST
CBST
DRVH 8
2 IN
SW 7
FAN54318
3 OD
PGND 6
4 VCC
C VCC
DRVL 5
Q1 C VIN
L1
Q2
Figure 1. Basic Application Circuit
REV. 1.0.0 6/11/03




FAN53418M pdf, 반도체, 판매, 대치품
FAN53418
Electrical Specications
(Vcc = 12V, and TA = 0°C to +85°C, VBST = 4V to 26V, unless otherwise noted.)
The • denotes specifications which apply over the full operating temperature range.
Parameter
Input Supply
Supply Voltage Range
Supply Current
OD Input
Input High Voltage
Input Low Voltage
Input Current
Propagation Delay Time2
PWM Input
Input High Voltage
Input Low Voltage
Input Current
High-Side Driver
Output Resistance,
Sourcing Current
Output Resistance,
Sinking Current
Transition Times2
Symbol
VCC
ISYS
VIH(OD)
VIL(OD)
IIL(OD)
tpdl(OD)
tpdh(OD)
VIH(PWM)
VIL(PWM)
IIL(PWM)
trDRVH
Propagation Delay2,3
Low-Side Driver
Output Resistance,
Sourcing Current
Output Resistance,
Sinking Current
Transition Times2
Propagation Delay2,3
tfDRVH
tpdhDRVH
tpdlDRVH
trDRVL
tfDRVL
tpdhDRVL
tpdlDRVL
Conditions
Min.
BST = 12V, IN = 0V
• 4.15
See Figure 2
See Figure 2
• 2.8
• -1
• 3.5
• -1
VBST – VSW = 12V
VBST – VSW = 12V
See Figure 3, VBST – VSW = 12V,
CLOAD=3nF
See Figure 3, VBST – VSW = 12V,
CLOAD=3nF
See Figure 3, VBST – VSW = 12V
See Figure 3, VBST – VSW = 12V
See Figure 3, CLOAD = 3nF
See Figure 3, CLOAD = 3nF
See Figure 3
See Figure 3
Typ.
3
15
20
1.8
1.0
35
20
40
20
1.8
1.0
25
21
30
10
Max. Units
13.2 V
6 mA
V
0.8 V
+1 µA
30 ns
40 ns
V
0.8 V
+1 µA
3.0
2.5
45 ns
30 ns
65 ns
35 ns
3.0
2.5
35 ns
30 ns
60 ns
20 ns
Notes:
1. All limits at operating temperature extremes are guaranteed by design, characterization and statistical quality control.
2. AC Specifications guaranteed by design/characterization – NOT tested in production.
3. For propagation delays “tpdh” refers to low-to-high signal transition and “tpdl” refers to high-to-low signal transition.
4 REV. 1.0.0 6/11/03

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FAN53418M 전자부품, 판매, 대치품
Typical Characteristics (Continued)
FAN53418
Supply Curreny vs. Frequency
DRVL Output Voltage vs. Supply Voltage
Supply Current vs. Temperature
REV. 1.0.0 6/11/03
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관련 데이터시트

부품번호상세설명 및 기능제조사
FAN53418

Synchronous DC-DC MOSFET Driver

Fairchild Semiconductor
Fairchild Semiconductor
FAN53418M

Synchronous DC-DC MOSFET Driver

Fairchild Semiconductor
Fairchild Semiconductor

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