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Winbond Bus Termination Regulator W83310S-R/N
Date: April 13, 2005
Revision: 1.0
W83310S-R/N
Table of Content1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. GENERAL DESCRIPTION......................................................................................................1 FEATURES..............................................................................................................................1 APPLICATIONS.......................................................................................................................1 PIN CONFIGURATION AND DESCRIPTION.........................................................................2 APPLICATION CIRCUIT .........................................................................................................3 INTERNAL BLOCK DIAGRAM................................................................................................5 ELECTRICAL CHARACTERISTICS .......................................................................................6 TYPICAL OPERATING WAVEFORM.....................................................................................7 PACKAGE DIMENSION........................................................................................................10 ORDERING INFORMATION.................................................................................................11 HOW TO READ THE TOP MARKING ..................................................................................11 REVISION HISTORY ............................................................................................................12
I Publication Release Date: April 13, 2005 Revision 1.0
W83310S-R/N
1. GENERAL DESCRIPTION
The W83310S-R/N is a linear regulator which provides achieves 1.5Amp bi-directional sinking and driving capability for DDR SDRAM bus terminator application. The chip simply implement a stable power supply which can track half of input power dynamically for bus terminator with a single chip; that is the chip integrates two power MOSFETs. There is no any external power device needed. The W83310S-R/N is promoted with small footprint 8-SOP 150mil package. With W83301S-R/N design, a high integration, high performance, and cost-effective solution is promoted.
2. FEATURES Regulates a bi-directional power with driving and sinking capability Provides achieve 1.5Amp driving and sinking current Power MOSFET integrated Low external component count Low output voltage offset Operates with +5V,+3.3V and +2.5V power Small package Low cost and easy to use 3. APPLICATIONS DDR Bus Termination Regulator Active Termination Bus SSTL-2 SSTL-3
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W83310S-R/N
4. PIN CONFIGURATION AND DESCRIPTION - W83310S-R
VIN GND VREF VOUT 1 2 3 4 8 VCNTL
inbond W83310S-R
7 VCNTL 6 5
SYMBOL VIN GND VREF VOUT VCNTL VCNTL VCNTL VCNTL
PIN 1 2 3 4 5 6 7 8 Power input pin.
FUNCTION Ground. Reference voltage and Chip enable. Output voltage. Gate drive voltage. Gate drive voltage. Gate drive voltage. Gate drive voltage.
- W83310S-N
N/C GND VSEN VREF 1 2 3 4 8 VTT
inbond W83310S-N
7 PVIN 6 5
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W83310S-R/N
SYMBOL N/C GND VSENSE VREF VDDQ AVIN PVIN VTT
PIN 1 2 3 4 5 6 7 8 No internal connection.
FUNCTION Ground. Feedback pin for regulating VTT. Internal reference voltage of VDDQ/2. Input for internal reference equal to VDDQ/2. Analog input pin. Power input pin. Output voltage for connection to termination resistors.
5. APPLICATION CIRCUIT - W83310S-R
2.5V
C1 1000u 3 VOU Enable# 1 2 Q 2N7002 C 1u C 1u
1 2 3 4 C
U VI GN VRE VOU
VCNT VCNT VCNT VCNT
8 7 6 5 C 1u
3.3V
W83310S-R
1000u
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W83310S-R/N
- W83310S-N
VTT U 1 2 3 4 C 1 N/ GN VSE VRE VTT PVI AVI VDD 8 7 C 6 5 C 1 1000 3.3 C 1 C 1000 2.5
VRE
W83310S-N
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W83310S-R/N
6. INTERNAL BLOCK DIAGRAM - W83310S-R VCNTL VIN
5K
VREF
5K
Control Logic
VOUT
- W83310S-N
GND VDDQ AVIN PVIN
5K
VREF
Control Logic Ci it
5K
VTT
VSEN
GND
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W83310S-R/N
7. ELECTRICAL CHARACTERISTICS
AC CHARACTERISTICS
W83310S-R VIN=2.5V,VCNTL=3.3V,VREF=1.25V,Cout=100uF, TA = 0C to +70C Parameter Output Offset Voltage Load Regulation VIN VCNTL ICNTL 0.4 0.1 ISHDN 10 Symbol VOS Min -5 Typ 0 0.8 0.8 2.5 3.3 0.5 1 % Max +5 Units mV Test Conditions IOUT=0A Loading: 0A 1.5A Loading: 0A -1.5A
Input Voltage Range Operating Current of VCNTL Shutdown Threshold Trigger Shutdown Current
V mA V V uA No Load(IOUT=0A) Output=High Output=Low VREF<0.2V Loading=0.7A
Note: Load regulation is tested with a 10ms pulse current and measuring VOUT.
W83310S-N AVIN=3.3V; PVIN=2.5V is recommended, VDDQ =2.5V,VREF=1.25V,Cout=100uF, TA = 0C to +70C Parameter Output Offset Voltage Load Regulation VDDQ Input Voltage Range Operating Current of AVIN PVIN AVIN IAVIN Symbol VOS Min -5 Typ 0 0.8 0.8 2.5 2.5 3.3 0.5 1 mA No Load(IOUT=0A) V % Max +5 Units mV Test Conditions IOUT=0A Loading: 0A 1.5A Loading: 0A -1.5A
Note: Load regulation is tested with a 10ms pulse current and measuring VTT.
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W83310S-R/N
8. TYPICAL OPERATING WAVEFORM W83310S-R VOUT offset with a 1.5A/10ms driving pulse current.
W83310S-R VOUT offset with a 1.5A/10ms sinking pulse current.
W83310S-N VTT offset with a 1.5A/10ms driving pulse current.
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W83310S-R/N
W83310S-N VTT offset with a 1.5A/10ms sinking pulse current.
- Load regulation with various sinking/driving loading
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W83310S-R/N
VOUT vs IOUT 1.25 1.248 1.246 1.244 1.242 -120 -90 -60 -30 0 30 60 90 120 IOUT(mA)
VOUT(V)
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W83310S-R/N
9. PACKAGE DIMENSION
8L SOP 150mil
SOP-8 Thermal Resistance JA 135.2/W 130.6/W
156.0/W
with 0m/s airflow
141.8/W with 1m/s airflow with 2m/s airflow with 0m/s airflow
c
8
5
E
HE
L
1
D
4
0.25 O
A Y SEATING PLANE b e A1 GAUGE PLANE
Control demensions are in milmeters .
SYMBOL A A1 b c E D e HE Y L DIMENSION IN MM MIN. MAX. 1.35 1.75 0.10 0.25 0.51 0.33 0.19 0.25 3.80 4.00 4.80 5.00 1.27 BSC 6.20 5.80 0.10 0.40 1.27 0 10 DIMENSION IN INCH MIN. MAX. 0.053 0.069 0.010 0.004 0.020 0.013 0.010 0.008 0.157 0.150 0.188 0.196 0.050 BSC 0.228 0.016 0 0.244 0.004 0.050 10
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W83310S-R/N
10. ORDERING INFORMATION
PART NUMBER W83310S-R W83310S-N PACKAGE TYPE 8PIN SOP 8PIN SOP PRODUCTION FLOW Commercial, 0C to +70C Commercial, 0C to +70C
11. HOW TO READ THE TOP MARKING
W83 310S-X 249OB
Left line: Winbond logo 1st & 2nd line: W883310S-R/N - the part number 3rd line: Tracking code Tracking code 249 O A 249: packages assembled in Year 02', week 49 O: assembly house ID; O means OSE, G means GR, etc. B: the IC version
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W83310S-R/N
12. REVISION HISTORY
VERSION 0.51 0.60 0.61 1.0 DATE 12/2002 02/2003 03/2003 4/13/2005 PAGE N.A. 3 5 12 DESCRIPTION The versions before 0.5 are only for internal reference. Recommend circuit update AC specification update Add disclaimer
Important Notice
Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Further more, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales.
Headquarters
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Winbond Electronics (H.K.) Ltd.
Unit 9-15, 22F, Millennium City, No. 378 Kwun Tong Rd., Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064
Please note that all data and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this data sheet belong to their respective owners.
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