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RAA220002 Datasheet

Dual Synchronous Rectified Buck MOSFET Driver

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Datasheet
RAA220002
Dual Synchronous Rectified Buck MOSFET Driver
The RAA220002 is a dual high frequency MOSFET
driver designed to drive upper and lower power
N-channel MOSFETs in a synchronous rectified buck
converter topology.
The RAA220002’s upper and lower gates are both
driven to an externally applied voltage, which provides
the ability to optimize applications involving trade-offs
between gate charge and conduction losses.
An advanced adaptive shoot-through protection is
integrated to prevent both the upper and lower
MOSFETs from conducting simultaneously and to
minimize dead time. The RAA220002 has a 10kΩ
integrated high-side gate-to-source resistor to prevent
self turn-on due to high input bus dV/dt.
The RAA220002’s overvoltage protection feature is
operational while VCC is below the POR threshold.
The PHASE node is connected to the gate of the
low-side MOSFET (LGATE) through a 30kΩ resistor,
limiting the output voltage of the converter close to the
gate threshold of the low-side MOSFET. This is
dependent on the current being shunted, which
provides some protection to the load if the upper
MOSFET(s) becomes shorted.
Applications
• High light-load efficiency voltage regulators
• Core regulators for advanced microprocessors
• High current DC/DC converters
Features
• Dual independent MOSFET driver suitable for
multi-phase DC/DC applications
• Dual MOSFET drives for synchronous rectified
bridge
• Advanced adaptive zero shoot-through protection
○ PHASE detection
○ LGATE detection
○ Auto-zero of rDS(ON) conduction offset effect
• Low standby bias current
• 36V internal bootstrap switcher
• Bootstrap capacitor overcharging prevention
• Integrated high-side gate-to-source resistor to
prevent self turn-on due to high input bus dV/dt
• Pre-POR overvoltage protection for start-up and
shutdown
• Power rail undervoltage protection
• Expandable bottom copper pad for enhanced heat
sinking
• Thin Dual Flat No-lead (TDFN) package
• Near chip-scale package footprint; improves PCB
efficiency and thinner in profile
• Pb-free (RoHS compliant)
Related Literature
For a full list of related documents, visit our website:
RAA220002 device page
PWM0
PHASE0
10k
UGATE0
BOOT0
VCC12
LGATE0
5V
40k
22.4k
5V
40k
22.4k
Shoot-
30k
Through
Protection
POR/
Control
Logic
Shoot-
Through
Protection
30k
PWM1
PHASE1
10k
UGATE1
BOOT1
VCC12
LGATE1
GND
Figure 1. Block Diagram
R16DS0007EU0100 Rev.1.00
Jul.8.19
Page 1 of 17


Renesas Electronics Components Datasheet

RAA220002 Datasheet

Dual Synchronous Rectified Buck MOSFET Driver

No Preview Available !

RAA220002
1. Overview
1.1 Typical Applications
3.3V
1µF
10µF
EN0
PG0
VCC
VCCS
12V
0.1µF
VINSEN
PSYSIN
SVCLK
SVDATA
nSVALERT
PSYSCRIT#
nVRHOT
CFP
PMSCL
PMSDA
nPMALERT
ADDR
PG1
EN1
RAA229001
RGND0
VSEN 0
TEMP0
3300pF
47pF 22k
PWM0
CS0
CSRTN0
RAA220002
PWM0
PHASE0
VIN
UGATE0
BOOT0
12V
VCC12
LGATE0
GND
12V
VCC12
PHASE1
VIN
UGATE1
BOOT1
PWM1
CS1
CSRTN1
PWM2
CS2
CSRTN2
PWM1
LGATE1
RAA220002
PWM0
PHASE0
VIN
UGATE0
BOOT0
12V
VCC12
LGATE0
GND
12V
VCC12
PHASE1
VIN
UGATE1
BOOT1
PWM3
CS3
CSRTN3
PWM4
CS4
CSRTN4
PWM1
LGATE1
RAA220002
PWM0
PHASE0
VIN
UGATE0
BOOT0
12V
VCC12
LGATE0
GND
12V
VCC12
PHASE1
VIN
UGATE1
BOOT1
PWM5
CS5
CSRTN5
PWM1
LGATE1
PWM6
CS6
CSRTN6
RAA220002
PWM0
PHASE0
VIN
UGATE0
12V
VCC12
GND
12V
VCC12
BOOT0
LGATE0
PHASE1
VIN
UGATE1
BOOT1
PWM7
CS7
CSRTN7
TEMP1
PWM1
47pF 22k
LGATE1
RGND1
VSEN 1
3300pF
Figure 2. Intel Application 6+2 with Dual Driver
1. Overview
NTC 10k
COUT
VCORE
NTC 10k
COUT
VGT
R16DS0007EU0100 Rev.1.00
Jul.8.19
Page 2 of 17



Part Number RAA220002
Description Dual Synchronous Rectified Buck MOSFET Driver
Maker Renesas
Total Page 3 Pages
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RAA220002 Datasheet PDF





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