rt9600 ETC-unknow, rt9600 Datasheet

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rt9600

Manufacturer Part Number
rt9600
Description
Synchronous-rectified Buck Mosfet Drivers
Manufacturer
ETC-unknow
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
rt9600CS
Manufacturer:
RICHTEK/立錡
Quantity:
20 000
Part Number:
rt9600CS
Manufacturer:
RichTek
Quantity:
12 011
General Description
The RT9600 is a high frequency, dual MOSFET
driver specifically designed to drive two power N-
Channel MOSFETs in a synchronous-rectified buck
converter topology. This driver combined with the
RT9237/RT9241 series of Multi-Phase Buck PWM
controller form a complete core-voltage regulator
solution for advanced microprocessors.
The RT9600 drives both the lower/upper gate in a
synchronous-rectifier bridge with 12V. Independent
driving of upper gate through PVCC pin is
achievable. This drive-voltage flexibility provides the
advantage of optimizing applications involving trade-
offs between switching losses and conduction losses.
The output drivers in the RT9600 can efficiently
switch power MOSFETs at frequency up to 500KHz.
Switching frequency above 500KHz has to take into
account the thermal dissipation of SOP-8 package.
RT9600 is capable of driving a 3000pF load with a
30ns rise time. RT9600 implements bootstrapping on
the upper gate with only an external capacitor
required. This reduces implementation complexity
and allows the use of higher performance, cost
effective, N-Channel MOSFETs. Adaptive shoot-
through protection is integrated to prevent both
MOSFETs from conducting simultaneously.
Ordering Information
RT9600
DS9600-00 August, 2002
Operating temperature range
Package type
S : SOP-8
C: Commercial standard
Synchronous-Rectified Buck MOSFET Drivers
Preliminary
Features
Applications
Pin Configurations
(Plastic SOP-8)
RT9600CS
Drives Two N-Channel MOSFETs
Adaptive Shoot-Through Protection
Internal Bootstrap Device
Supports High Switching Frequency
Small SOP-8 Package
Dual Gate-Drive Voltages for Optimal Efficiency
Tri-State Input for Bridge Shutdown
Supply Under Voltage Protection
Core Voltage Supplies for Intel Pentium
High Frequency Low Profile DC-DC Converters
High Current Low Voltage DC-DC Converters
− Fast Output Rise Time
Athlon
Part Number
TM
Microprocessors
UGATE
BOOT
PWM
GND
Pin Configurations
1
2
3
4
TOP VIEW
RT9600
www.richtek.com
8
7
6
5
4, AMD
PHASE
PVCC
VCC
LGATE
1

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rt9600 Summary of contents

Page 1

... MOSFETs at frequency up to 500KHz. Switching frequency above 500KHz has to take into account the thermal dissipation of SOP-8 package. RT9600 is capable of driving a 3000pF load with a 30ns rise time. RT9600 implements bootstrapping on the upper gate with only an external capacitor required. This reduces implementation complexity and allows the use of higher performance, cost effective, N-Channel MOSFETs ...

Page 2

... Connect this pin to the source of the high-side MOSFET and the drain of the low-side 8 PHASE MOSFET Function Block Diagram V CC PWM Typical Application Circuit 10Ω +12V 6 VCC 7 PVCC µ F RT9600 3 PWM PWM www.richtek.com 2 Preliminary Pin Function PVCC Control Logic Shoot- through Protect Internal 5V 500K 500K ...

Page 3

... Min Typ = 12V, PVCC -- 5.2 = 20Ω = 12V, PVCC -- 3.7 = 20Ω 9.1 9.6 7.5 8.1 = 12V -- 1.5 = 12V -- 1.45 = 12V -- 1 1.9 -- 3 RT9600 + 0.3V BOOT + 0.3V PVCC Max Units 8.5 V Ω -- Ω 2 Ω -- Ω 1 µ continued www.richtek.com 3 ...

Page 4

... UGATE Turn-Off Propagation Delay LGATE Turn-Off Propagation Delay Shutdown Window Operation Descriptions The RT9600 is designed to drive both high side and low side N-channel MOSFET through externally input PWM control signal. It has power on protection function which held UGATE and LGATE low before V up across the rising threshold voltage ...

Page 5

... SOP Plastic Package RT9600 H M Dimensions In Inches Min Max 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.047 0.053 0.007 0.010 0.004 ...

Page 6

... RT9600 RICHTEK TECHNOLOGY CORP. Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 www.richtek.com 6 Preliminary RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com DS9600-00 August, 2002 ...

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