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SC1205 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 1 Page - Semtech Corporation

๋ถ€ํ’ˆ๋ช… SC1205
์ƒ์„ธ๋‚ด์šฉ  HIGH SPEED SYNCHRONOUS POWER MOSFET DRIVER
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์ œ์กฐ์‚ฌ  SEMTECH [Semtech Corporation]
ํ™ˆํŽ˜์ด์ง€  http://www.semtech.com
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SC1205 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 1 Page - Semtech Corporation

 
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SC1205
HIGH SPEED SYNCHRONOUS POWER
MOSFET DRIVER
ยฉ 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
PRELIMINARY - December 7, 1999
1
BLOCK DIAGRAM
PIN CONFIGURATION
Top View
(SO-8)
DESCRIPTION
The SC1205 is a cost effective Dual MOSFET Driver
designed for switching High and Low side Power
MOSFETs. Each driver is capable of driving a
3000pF load in 20ns rise/fall time and has a 20ns max
propagation delay from input transition to the gate of
the power FETโ€™s. An internal Overlap Protection Cir-
cuit prevents shoot-through from Vin to GND in the
main switching and synchronous MOSFETโ€™s. The
Overlap Protection circuit ensures the Bottom FET
does not turn on until the Top FET source has reached
a voltage low enough to prevent cross-conduction.
The high current drive capability (2A peak) allows fast
switching, thus reducing switching losses at high
(1MHz) PWM frequencies. The high voltage CMOS
process allows operation from 5-25 Volts at top MOS-
FET drain, thus making SC1205 suitable for battery
powered applications. Connecting Enable pin (EN) to
logic low shuts down both drives and reduces operat-
ing current to less than 10uA.
An Under-Voltage-Lock-Out circuit is included to guar-
antee that both driver outputs are low when the 5V
logic level is less than or equal to 4.4V (typ) at supply
ramp up (4.35V at supply ramp down). An Internal
temperature sensor shuts down all drives in the event
of overtemperature. SC1205 is fabricated utilizing
CMOS technology for low quiescent current. The
SC1205 is offered in a standard SO-8 package.
FEATURES
โ€ข Fast rise and fall times (15ns typical with 3000pf
load)
โ€ข 2Amp peak drive current
โ€ข 14ns max Propagation delay (BG going low)
โ€ข Adaptive Non-overlapping Gate Drives provide
shoot-through protection
โ€ข Floating top drive switches up to 25V
โ€ข Under-Voltage lock-out
โ€ข Overtemperature protection
โ€ข Less than 10uA supply current when EN is low
โ€ข Low cost
APPLICATIONS
โ€ข High Density sunchronous power supplies
โ€ข Motor Drives/Class-D amps/Half bridge drivers
โ€ข High frequency (to 1.2 MHz) operation allows use
of small inductors and low cost caps in place of
electrolytics
โ€ข Portable computers
โ€ข Battery powered applications
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DEVICE
(1)
PACKAGE
TEMP. RANGE (T
J)
SC1205CS
SO-8
0 - 125ยฐC
ORDERING INFORMATION
Note:
(1) Add suffix โ€˜TRโ€™ for tape and reel.


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