SI9910 Vishay Siliconix, SI9910 Datasheet

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SI9910

Manufacturer Part Number
SI9910
Description
Adaptive Power MOSFET Driver1
Manufacturer
Vishay Siliconix
Datasheet

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DESCRIPTION
The Si9910 Power MOSFET driver provides optimized gate
drive signals, protection circuitry and logic level interface. Very
low quiescent current is provided by a CMOS buffer and a
high-current emitter-follower output stage. This efficiency
allows operation in high-voltage bridge applications with
“bootstrap” or “charge-pump”
techniques.
The non-inverting output configuration minimizes current
drain for an n-channel “on” state. The logic input is internally
diode clamped to allow simple pull-down in high-side drives.
Document Number: 70009
S-40707—Rev. G, 19-Apr-04
1. Patent Number 484116.
FEATURES
D dv/dt and di/dt Control
D Undervoltage Protection
D Short-Circuit Protection
FUNCTIONAL BLOCK DIAGRAM
INPUT
V
DD
V
DS
Delay
2-ms
D t
D Low Quiescent Current
D CMOS Compatible Inputs
Adaptive Power MOSFET Driver
Undervoltage/
Overcurrent
rr
Protection
floating power supply
Shoot-Through Current Limiting
V
SS
Fault protection circuitry senses an undervoltage or output
short-circuit condition and disables the power MOSFET.
Addition of one external resistor limits maximum di/dt of the
external Power MOSFET. A fast feedback circuit may be used
to limit shoot-through current during t
time) in a bridge configuration.
The Si9910 is available in 8-pin plastic DIP and SOIC
packages, and are specified over the industrial, D suffix (−40
to 85_C) temperature range. In SOIC-8 packaging both
standard and lead (Pb)-free options are available.
D Compatible with Wide Range of MOSFET Devices
D Bootstrap and Charge Pump Compatible
(High-Side Drive)
PULL-DOWN
PULL-UP
DRAIN
I
SENSE
* Typical Values
1
*100 kW
*250 W
R3
R2
C1
Vishay Siliconix
rr
*2 to 5 pF
(diode reverse recovery
*0.1 W
R1
www.vishay.com
Si9910
1

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SI9910 Summary of contents

Page 1

... Power MOSFET. A fast feedback circuit may be used to limit shoot-through current during t time bridge configuration. The Si9910 is available in 8-pin plastic DIP and SOIC packages, and are specified over the industrial, D suffix (−40 to 85_C) temperature range. In SOIC-8 packaging both standard and lead (Pb)-free options are available. ...

Page 2

... Si9910 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltages Referenced to V Pin SS V Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DD Pin Pin Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

... OUT PIN CONFIGURATIONS AND ORDERING INFORMATION PDIP INPUT DRAIN 4 Top View Part Number Si9910DY Si9910DY-T1 Si9910DY-T1—E3 Si9910DJ Si9910DJ-T1 Document Number: 70009 S-40707—Rev. G, 19-Apr-04 90 PULL-UP 8 Pull-DOWN INPUT DRAIN 5 SENSE ORDERING INFORMATION Temperature Range −40 to 85_C ...

Page 4

... Si9910 is in the low state. The Si9910 will not respond to a high input signal until the voltage on the bootstrap capacitor is sufficient to fully enhance the power MOSFET gate. For more details, please refer to for source-referenced Application Note AN705 ...

Page 5

... APPLICATION CIRCUIT V ( INPUT C3 OSC Q2 CMOS Logic C4 R5 INPUT C2 = Bootstrap Cap C3 = Chargepump Cap FIGURE 1. High-Voltage Half-Bridge with Si9910 Drivers Document Number: 70009 S-40707—Rev. G, 19-Apr- Si9910 Vishay Siliconix DRAIN C1 PULL-UP R2 PULL-DOWN Q1 I SENSE R1 V R3’ ...

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