|
|
PDF SI9912DY-T1 Data sheet ( Hoja de datos )
| Número de pieza | SI9912DY-T1 | |
| Descripción | Half-Bridge MOSFET Driver for Switching Power Supplies | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SI9912DY-T1 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
Si9912
Vishay Siliconix
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 Shutdown Quiescent Current <5 mA
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
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
DESCRIPTION
The Si9912 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 Si9912 comes with an internal
break-before-make feature to prevent shoot-through current in
the external MOSFETs. A shutdown pin is used to enable the
driver. When disabled, the quiescent current of the driver is
less than 5 mA.
The Si9912 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).
FUNCTIONAL BLOCK DIAGRAM AND TRUTH TABLE
VDD
D1
Level Shift
Undervoltage
SD
IN
BOOT
VDC
Q1
OUTH
VS
CBOOT
OUTPUT
TRUTH TABLE
VS SD IN VOUTL VOUTH
LL L
L
L
LLH
L
L
LH L
H
L
VDD
LHH
L
H
OUTL
Q2
HL
L
HL H
L
L
L
L
HH L
L
L
HH H
L
H
+
− VBBM
GND
Document Number: 71311
S-40134—Rev. B, 16-Feb-04
www.vishay.com
1
1 page  
Si9912
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
IDD Supply Current vs. Frequency
30
See Figure 1
10
Rise and Fall Time vs. CLOAD
50
See Figure 2
40 tr(OUTH)
30 tf(OUTL)
tf(OUTH)
20
tr(OUTL)
10
1
1
0
−1
10 100
Frequency (kHz)
VOUT(H+) vs. Supply
0.5 A
1000
−2
1A
−3
−4 See Figure 3
1.5 A
−5
3.0 3.5 4.0 4.5 5.0 5.5
Supply Voltage (V)
0
0.5 A
−1
1A
−2
−3
VOUT(L+) vs. Supply
1.5 A
6.0
−4
−5 See Figure 3
2A
−6
4.0
4.5 5.0 5.5
Supply Voltage (V)
6.0
Document Number: 71311
S-40134—Rev. B, 16-Feb-04
0
0.3
13
Load Capacitance (nF)
10
VOUT(H−) vs. Supply
5
See Figure 3
4
2A
3
2
1A
1 0.5 A
1.5 A
0
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Supply Voltage (V)
VOUT(L−) vs. Supply
2.5
See Figure 3
2.0
1.5
1.0
0.5
0.0
4.0
2A
1.5 A
1A
0.5 A
4.5 5.0 5.5
Supply Voltage (V)
6.0
www.vishay.com
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SI9912DY-T1.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SI9912DY-T1 | Half-Bridge MOSFET Driver for Switching Power Supplies | Vishay Siliconix |
| SI9912DY-T1-E3 | Half-Bridge MOSFET Driver for Switching Power Supplies | Vishay Siliconix |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |