SIP41110 Vishay Siliconix, SIP41110 Datasheet

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SIP41110

Manufacturer Part Number
SIP41110
Description
(SIP41109 / SIP41110) Half-Bridge N-Channel MOSFET Driver for DC/DC Conversion
Manufacturer
Vishay Siliconix
Datasheet
DESCRIPTION
The SiP41109 and SiP41110 are high-speed half-bridge
MOSFET drivers for use in high frequency, high current,
multiphase dc-to-dc synchronous rectifier buck power
supplies. They are designed to operate at switching
frequencies up to 1 MHz. The high-side driver is bootstrapped
to allow driving n-channel MOSFETs.
They feature adaptive shoot-through protection to prevent
simultaneous conduction of the external MOSFETs. There are
two options available for the voltage of the high-side and
Document Number: 73023
S-51104—Rev. A, 13-Jun-05
FEATURES
D PWM With Tri-State Enable
D 12-V Low-Side Gate Drive (SiP41109)
D 8-V Low-Side Gate Drive (SiP41110)
D Undervoltage Lockout
D Internal Bootstrap Diode
D Switching Frequency Up to 1 MHz
D 30-ns Max Propagation Delay
D Drive MOSFETs In 5- to 48-V Systems
D Adaptive Shoot-Through Protection
TYPICAL APPLICATION CIRCUIT
+5 to 48 V
Half-Bridge N-Channel MOSFET Driver for DC/DC Conversion
+12 V
GND
Controller
PVcc
PWM
(Tri-State)
New Product
SiP41109/41110
GND
V
CC
APPLICATIONS
D Multi-Phase DC/DC Conversion
D High Current Low Voltage DC/DC Converters
D High Frequency DC/DC Converters
D Mobile and Desktop Computer DC/DC Converters
D Core Voltage Supplies for PC Micro-Processors
low-side drivers. In the SiP41109, the regulator supplies gate
drive voltage to the high-side driver and V
low-side driver. in the SiP41110, the regulator supplies the
high- and low-side gate drive voltage.
The SiP41109
lead (Pb)-free 8-pin SOIC package for operation over the
industrial operating range (−40 _C to 85 _C).
PHASE
UGATE
LGATE
BOOT
and SiP41110 are assembled in a
SiP41109/41110
Vishay Siliconix
CC
www.vishay.com
supplies the
V
GND
OUT
1

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SIP41110 Summary of contents

Page 1

... D Mobile and Desktop Computer DC/DC Converters D Core Voltage Supplies for PC Micro-Processors low-side drivers. In the SiP41109, the regulator supplies gate drive voltage to the high-side driver and V low-side driver. in the SiP41110, the regulator supplies the high- and low-side gate drive voltage. The SiP41109 and SiP41110 are assembled in a lead (Pb)-free 8-pin SOIC package for operation over the industrial operating range (− ...

Page 2

... SiP41110 PWM = Open PWM mA 25_C − V − BOOT BOOT PHASE PHASE SiP41110 SiP41110 PVCC PVCC SiP41109 SiP41109 PVCC PVCC 130_C −40 to 85_C Limits Min Typ ...

Page 3

... BOOT PHASE SiP41110 LOAD 10% − 90%, V − BOOT PHASE SiP41109 LOAD 10% − 90%, V − BOOT PHASE SiP41110 LOAD 10% − 90%, V − BOOT PHASE SiP41109 LOAD See Timing Waveforms See Timing Waveforms DRV 13.2 V ...

Page 4

... V PHASE LGATE 5 ORDERING INFORMATION Temperature Range −40 to 85_C −40 to 85_C Eval Kit Temperature Range SiP41109DB −40 to 85_C −40 to 85_C SiP41110DB 90% 10 90% 10% t d(on)H TRUTH TABLE PWM UGATE LGATE Tri-State L L Marking 41109 41110 ...

Page 5

... If the PWM is left open, the pin is held to 2 internal voltage divider, thus forcing the tri-state condition. Low-Side Driver In the SiP41109, the low-side driver voltage is supplied the SiP41110, the low-side driver voltage is supplied During shutdown, LGATE is held low. CC High-Side Driver ...

Page 6

... BOOT and PHASE is below the specified voltage. Thermal Protection If the die temperature rises above 165_C, the thermal protection disables the drivers. The drivers are re-enabled after the die temperature has decreased below 140_C. 200 kHz vs. C vs. Frequency (SiP41110) CC LOAD 100 ...

Page 7

... Figure 2. PWM Signal vs. HS Gate, LS Gate and PHASE (Rising) 40 ns/div Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. http://www.vishay.com/ppg?73023. Document Number: 73023 S-51104— ...

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