W83310SG [WINBOND]
Bus Termination Regulator With Over Temp. & Current Limit Protection; 总线终端稳压器温度过高。和电流限制保护
| 型号： | W83310SG |
| 厂家： | 
WINBOND |
| 描述： | Bus Termination Regulator With Over Temp. & Current Limit Protection |
| 文件： | 总17页 (文件大小：435K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
W83310S/W83310SG
Winbond
Bus Termination Regulator
With
Over Temp. & Current Limit
Protection
W83310S
W83310SG
Publication Release Date: Jan. 2006
Revision 0.7
-1-
W83310S/W83310SG
W83310S
Datasheet Revision History
VERSION
ON WEB
PAGES
DATES
VERSION
MAIN CONTENTS
All versions before 0.5 are for internal use
only.
1.
2.
3
Oct./03
Oct./03
Feb./04
Jul./04
Jan./06
0.5
0.51
0.60
0.61
0.7
N.A.
3,9
12
N.A.
N.A.
N.A.
N.A
AC spec. and typical waveform update.
Add the thermal data.
4
3
Add min./typ. value of VIN.
Modify application circuit, AC characteristic
and add Pb-free part no: W83310SG.
5
2,3,11
Please note that all data and specifications are subject to change without notice. All
the trademarks of products and companies mentioned in this datasheet belong to
their respective owners.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or
systems where malfunction of these products can reasonably be expected to result in
personal injury. 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.
-2-
W83310S/W83310SG
Table of Contents-
1.
2.
3.
4.
5.
6.
7.
GENERAL DESCRIPTION ......................................................................................................... 4
FEATURES................................................................................................................................. 4
APPLICATIONS.......................................................................................................................... 4
PIN CONFIGURATION AND DESCRIPTION ............................................................................ 5
APPLICATION CIRCUIT............................................................................................................. 6
INTERNAL BLOCK DIAGRAM- W83310S................................................................................. 7
ELECTRICAL CHARACTERISTICS........................................................................................... 8
7.1
AC CHARACTERISTICS................................................................................................ 8
8.
TYPICAL OPERATING WAVEFORM......................................................................................... 9
PACKAGE DIMENSION (POWER SOP-8) .............................................................................. 15
THERMAL PERFORMANCE.................................................................................................... 16
ORDERING INFORMATION .................................................................................................... 16
HOW TO READ THE TOP MARKING...................................................................................... 16
9.
10.
11.
12.
Publication Release Date: Jan. 2006
-3-
Revision 0.7
W83310S/W83310SG
1. GENERAL DESCRIPTION
The W83310S is a linear regulator which provides achieves continuous 1.8 Amp 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 is promoted with SOP-8 power package. With W83310S design, a high integration, high
performance, and cost-effective solution is promoted.
2. FEATURES
y
y
y
y
y
y
y
y
y
y
Regulates a bi-directional power with driving and sinking capability
Provides achieve continuous 1.8Amp driving and sinking current
Power MOSFET integrated
Low external component count
Low output voltage offset
Operates with +3.3V and +2.5V control power
Current limit protection
Over temperature protection
Power package SOP-8
Low cost and easy to use
3. APPLICATIONS
y
y
y
y
DDR and DDR II Bus Termination Regulator
Active Termination Bus
SSTL-2
SSTL-3
-4-
W83310S/W83310SG
4. PIN CONFIGURATION AND DESCRIPTION
VIN
GND
NC
NC
5
inbond
VREF
VOUT
VCNTL
NC
W83310S
SYMBOL
VIN
PIN
FUNCTION
1
2
3
4
5
6
7
8
Power input pin.
Ground.
GND
VREF
VOUT
NC
Reference voltage and Chip enable.
Output voltage.
No function
VCNTL
NC
Gate drive voltage.
No function
NC
No function
Publication Release Date: Jan. 2006
Revision 0.7
-5-
W83310S/W83310SG
5. APPLICATION CIRCUIT
2.5VSTR
2.5VSTR/VCC3
U1
VIN
NC
R1
100K
C1
3.3VDL/VCC3
1000u
GND
NC
VREF
VCNTL
Q1
C2
1u
C3
1u
R3
1K
VOUT
NC
1
R2
ENABLE#
2N7002
100K
C4
C5
W83310S/SG
R4
1K
1u
1000u
Note:
R4=1 Kohm reserve for VOUT discharge or sink internal bias when VIN is not present but VCNTL is present.
R3=1 Kohm reserve for sink internal bias when VCNTL is not present but VIN is present.
-6-
W83310S/W83310SG
6. INTERNAL BLOCK DIAGRAM- W83310S
VCNTL
VIN
Current
Limit &
OTP
Control
VREF
VOUT
Logic
Circuit
GN
Publication Release Date: Jan. 2006
-7-
Revision 0.7
W83310S/W83310SG
7. ELECTRICAL CHARACTERISTICS
7.1 AC CHARACTERISTICS
W83310S
VIN=2.5V,VCNTL=3.3V,VREF=1.25V,COUT=100UF, T = 0°C TO +70°C
A
TEST
PARAMETER
SYMBOL
VOS
MIN
TYP
MAX
UNITS
CONDITIONS
-20
-20
20
20
mV
IOUT=0A
Loading: 0AÆ2.0A
Loading: 0AÆ-
Output Offset Voltage
mV
Load Regulation
-20
1.7
20
2.0A
2.5/1.8
3.3
3.63
3.63
VIN
VCNTL
V
Input Voltage Range
Operating Current of
VCNTL
Operating Current of VIN
IVCNTL
IVIN
1
1.5
1
mA
No Load(IOUT=0A)
mA
V
V
No Load(IOUT=0A)
Output=High
Output=Low
0.8
Shutdown Threshold
Trigger
0.2
VREF<0.2V
Loading=50 mA
50
uA
Shutdown Current of VIN
ISHDN
Output short to
GND
Short Current Limit
ILMT
4
A
Over Temperature
Protection
OTP
130
145
℃
Note: Load regulation is tested with a 1ms duty pulse current and measuring VOUT
.
-8-
W83310S/W83310SG
8. TYPICAL OPERATING WAVEFORM
-- Load regulation with test condition - VCTRL=3.3V; VIN=2.5V; VOUT=1.25V; 2.0Amp 1ms duty pulse
driving current. ∆V ≈ 6mV.
-- Load regulation with test condition - VCTRL=3.3V; VIN=2.5V; VOUT=1.25V; 2.0Amp 1ms duty pulse
sinking current. ∆V ≈ 2mV.
Publication Release Date: Jan. 2006
-9-
Revision 0.7
W83310S/W83310SG
-- Load regulation with test condition - VCTRL=3.3V; VIN=2.5V; VOUT=1.25V; 1.8Amp cont. driving
current. ∆V ≈ 24mV.
-- Load regulation with test condition - VCTRL=3.3V; VIN=2.5V; VOUT=1.25V; 1.8Amp cont. sinking
current. ∆V ≈ 5mV
-10-
W83310S/W83310SG
-- Power on waveform with condition: DC loading 0A; VIN Cap.: 1000uF; VOUT Cap.: 1000uF. CH1: VIN;
CH2: VOUT; CH3: VREF; CH4: Output current
-- Power on waveform with condition: DC loading 1.5Amp; VIN Cap.: 1000uF; VOUT Cap.: 1000uF.
CH1: VIN; CH2: VOUT; CH3: VREF; CH4: Output current
Publication Release Date: Jan. 2006
-11-
Revision 0.7
W83310S/W83310SG
-- Power off waveform with condition: DC loading 0A; VIN Cap.: 1000uF; VOUT Cap.: 1000uF. CH1: VIN;
CH2: VOUT; CH3: VREF; CH4: Output current
-- Power off waveform with condition: DC loading 1.5A; VIN Cap.: 1000uF; VOUT Cap.: 1000uF. CH1:
VIN; CH2: VOUT; CH3: VREF; CH4: Output current
-12-
W83310S/W83310SG
-- Current limit protection: CH1: VOUT CH3: output current
-- Current limit protection (cont.): CH1: VOUT; CH3: output current
Publication Release Date: Jan. 2006
-13-
Revision 0.7
W83310S/W83310SG
-- Short protection and over temperature protection; CH4: output current
-14-
W83310S/W83310SG
9. PACKAGE DIMENSION (POWER SOP-8)
Publication Release Date: Jan. 2006
-15-
Revision 0.7
W83310S/W83310SG
10. THERMAL PERFORMANCE
Test on Four-Layer (2S2P) JEDEC Test Board
Component Temp. (oC)
Θ jc
(oC /W)
14.7
Package
PSOP-8
Power (W)
3.05
Package
100
Die
145
Downset
79
Lead
78
Ambient
25
11. ORDERING INFORMATION
PART NUMBER
PACKAGE TYPE
W83310S
8L SOP-8
W83310SG
8L SOP-8(Pb-free package)
12. HOW TO READ THE TOP MARKING
W83
310S
316GA
W83
310SG
316GA
Left line: Winbond logo
1st & 2nd lines: W83310S, W83310SG (Pb-free package)
3rd line: Tracking code Tracking code 316 G A
316: Packages assembled in Year 03’, week 16
G: assembly house ID; O means OSE, G means GR, etc.
A: The IC version
-16-
W83310S/W83310SG
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.
Publication Release Date: Jan. 2006
-17-
Revision 0.7
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