SI9913DY

Manufacturer Part NumberSI9913DY
DescriptionMOSFET & Power Driver ICs Dual MOSFET Driver
ManufacturerVishay
TypeHigh Side/Low Side
SI9913DY datasheets

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Specifications of SI9913DY

Supply Voltage (min)4.5 VSupply Current5.5 mA
Maximum Power Dissipation830 mWMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTPackage / CaseSO-8
Bridge TypeHalf BridgeMinimum Operating Temperature- 40 C
Number Of Drivers2Number Of Outputs2
Lead Free Status / Rohs StatusLead free / RoHS Compliant  
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Half-Bridge MOSFET Driver for Switching Power Supplies
FEATURES
D 4.5- to 5.5-V Operation
D Undervoltage Lockout
D 250-kHz to 1-MHz Switching Frequency
D Synchronous Switch Enable
D One Input PWM Signal Generates Both Drive
D Bootstrapped High-Side Drive
D Operates from 4.5- to 30-V Supply
D TTL/CMOS Compatible Input Levels
D 1-A Peak Drive Current
D Break-Before-Make Circuit
DESCRIPTION
The Si9913 is a dual MOSFET high-speed driver with
break-before-make. It is designed to operate in high frequency
dc-dc switchmode power supplies. The high-side driver is
bootstrapped to handle the high voltage slew rate associated
with “floating” high-side gate drivers. Each driver is capable
of switching a 3000-pF load with 60-ns propogation delay and
25-ns transition time. The Si9913 comes with internal
break-before-make feature to prevent shoot-through current in
the external MOSFETs. A synschronous enable pin is used to
FUNCTIONAL BLOCK DIAGRAM
V
DD
D1
Level Shift
Undervoltage
IN
SYN
Document Number: 71343
S-40133—Rev. B, 16-Feb-04
APPLICATIONS
D Multiphase Desktop CPU Supplies
D Single-Supply Synchronous Buck Converters
D Mobile Computing CPU Core Power Converters
D Standard-Synchronous Converters
D High Frequency Switching Converters
enable the low-side driver. When disabled, the OUT
low.
The Si9913 is available in both standard and lead (Pb)-free 8-pin
SOIC packages for operation over the industrial operation range
(−40_C to 85_C).
AND TRUTH TABLE
BOOT
V
DC
Q
1
C
OUT
BOOT
H
OUTPUT
V
S
V
DD
OUT
L
Q
2
+
V
−
BBM
GND
Si9913
Vishay Siliconix
is logic
L
TRUTH TABLE
V
SYN
IN
V
V
S
OUTL
OUTH
L
L
L
L
L
L
L
H
L
H
L
H
L
H
L
L
H
H
L
H
H
L
L
L
L
H
L
H
L
H
H
H
L
L
L
H
H
H
L
H
www.vishay.com
1

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SI9913DY Summary of contents

  • Page 1

    ... The Si9913 is available in both standard and lead (Pb)-free 8-pin SOIC packages for operation over the industrial operation range (−40_C to 85_C). AND TRUTH TABLE BOOT OUT BOOT H OUTPUT OUT − BBM GND Si9913 Vishay Siliconix is logic L TRUTH TABLE V SYN OUTL OUTH ...

  • Page 2

    ... Si9913 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS (T Parameter Low Side Driver Supply Voltage Input Voltage on IN Synchronous Pin Voltage Bootstrap Voltage High Side Driver (Bootstrap) Supply Voltage Operating Junction Temperature Range Storage Temperature Range Power Dissipation (Note a and b) Thermal Impedance Lead Temperature (soldering 10 Sec) Notes a ...

  • Page 3

    ... BOOT BOOT S S OUT = 10 to 90% L OUT = 90 to 10% L OUT − 90 OUT − 10 50% 50% t pdh(OUTL) t f(OUTL) 90% 10 pdl OUTH) t r(OUTH) t pdh(OUTH) 90% 90% 10% Vishay Siliconix Limits Min Typ Max −0 0.4 S −0.4 0 90% 10% t r(OUTL) t pdl(OUTL) t f(OUTH) 10% Si9913 Unit Unit a V ...

  • Page 4

    ... Output drive for lower MOSFET Input power supply DD 7 BOOT Floating bootstrap supply for the upper MOSFET 8 V Floating GND for the upper MOSFET Part Number Si9913DY Si9913DY-T1 Si9913DY-T1—E3 Eval Kit Si9913DB TYPICAL WAVEFORMS Driver On Switch Delay C = Si4412DY OUT H OUT L IN Si9912 tr, tf, tpd www ...

  • Page 5

    ... See Figure 3 −6 4.0 4.5 5.0 Supply Voltage (V) Document Number: 71343 S-40133—Rev. B, 16-Feb-04 100 1000 1.5 A 5.0 5.5 6 5.5 6.0 Si9913 Vishay Siliconix Rise and Fall Time vs. C LOAD 50 See Figure r(OUTH f(OUTL r(OUTL 0 Load Capacitance (nF) V vs. Supply OUT(H− ...

  • Page 6

    ... Si9913 Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) V vs. Temperature OUT(H+) 0 See Figure 3 0.5 A −1 − −3 −4 −5 −50 − Temperature (_C) V vs. Temperature OUT(L+) 0 −1 −2 −3 − See Figure 3 −5 −50 − Temperature (_C) THEORY OF OPERATION Break-Before-Make Function The Si9913 has an internal break-before-make function to ensure that both high-side and low-side MOSFETs are not turned on at the same time ...

  • Page 7

    ... This possible. This is accomplished by making these traces as . short as possible, and also running trace and its current return path adjacent to each other OUT GND BOOT 0 SYN OUT L 4 Si9913 C2 0.1 mF Si9913 Vishay Siliconix + Si4412 L1 GND LOAD Q2 Si4412 GND GND www.vishay.com 7 ...

  • Page 8

    ... Si9913 Vishay Siliconix + OUT GND BOOT PWM SYN OUT L Si9913 GND FIGURE 2. Capacitive Load Test Circuit Used to Measure Rise and Fall Times vs. Capacitance www.vishay.com LOAD Input 5 C LOAD C8 C2 0.1 mF FIGURE OUT BOOT GND OUT SYN L ISRC Si9913 C2 0.1 mF GND Load Test Schematic Circuit Used to ...

  • Page 9

    ... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...

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