W83301R

Data Sheet Revision History

Pages Dates Version

Version

on Web

Main Contents

N.A.

01/Feb.

0.5

N.A.

All of the versions before 0.50 are for internal use.

2 4,5

01/MAY 0.6 N.A. Application circuit Update

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.

Confidential

Revision

0.6

W83301R

Preliminary

1. General Description

The W83301R is an ACPI-compliant controller for microprocessor and other

computer applications. In substance, the part can mainly operate in alternative
configurations mode A and B mode A provides a switch controller to generate a 5V

voltage from ATX power supply, a linear controller STR1 (2.5V

DUAL

), and a bus

termination controller 1.25 V

DUAL

for high speed bus such as RDRAM/DDRAM

current sinking and sourcing; and mode B provides a switch controller to generate a
5V

voltage from ATX power supply and three linear controllers for specific voltage

regulations that is STR1 (2.5V

DUAL

), STR2 (3.3V

DUAL

) and STR3 (1.8 V

DUAL

), all of the

outputs can simply configured by V

SET0

, V

SET1

. Besides, the W83301R also can

provide extra voltage up to 0.2V in each regulator output for more performance. In
order to reduce the customer's cost, and simplify the circuit design, the W83301R
integrates a charge-pump engine into the chip to provide higher driving voltage for
single N-channel MOSFETs, that is the W83301R, can drive only N-channel
MOSFETs for all applications. In the other hand, the W83301R also offer PWOK and
over current detection to protect each output and soft-start protects all linear
controllers from rush current attack. The W83301R is available in a 20-pin SOP
package.

2.Features

Provides alternative configurations for flexible applications

Mode A

Provide a switch controller to generate 5V

DUAL

Linear controller STR12.5V

DUAL

(RDRAM/DDRAM application)

Bus termination controller 1.25V

DUAL

for high speed bus termination

application to sinking and sourcing redundant current

Mode B

Provide a switch controller to generate 5V

DUAL

Linear controller STR1 2.5V

DUAL

(Clock Gen. Application)

Linear controller STR2 3.3 V

DUAL

(SDRAM Application)

Linear controller STR3 1.8V

DUAL

(Chipset Application)

Provide a switch to enable/disable 5V

output in S5 state via 5V

DLEN

pin for USB

application

Supports SDRAM/RDRAM/DDRAM ACPI-STR Functions

Drives all N-Channel MOSFETs

Power-Up Softstart for all controllers

Up to 0.2V incremental voltage on STR1/STR2 for over-clock application.

Under-Voltage Fault Monitor

Soft-Start function

20-Pin SOP Package

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Revision

0.6

W83301R

Preliminary

4.Pin Description

SYMBOL PIN

FUNCTION

Mode A: BT Current Source. Connect this pin to the gate of a suitable N-channel
MOSFET for driving bus termination regulator output.

STR

DRV2

/BT

DRV

Mode B: STR2 Driver. Connect this pin to the gate of a suitable N-channel
MOSFET for driving STR2 output.
Mode A: BT Sense. Connect this pin to the bus termination regulator output.

STR

SEN2

/BT

SEN

Mode B: STR2 Sense. Connect this pin to the STR2 output.
Mode A: BT Current Sink. This pin is used to drive a N-channel MOSFET to sink
the redundant current in the high-speed bus.

STR

DRV3

/BT

SINK

Mode B: STR3 Driver. Connect this pin to the gate of a suitable N-channel
MOSFET for driving STR3 output.
Mode A: Function Reserved. Pull up this pin to +5VSB through a 1.5 Kohm
resistor.

STR

SEN3

Mode B: STR3 Sense. Connect this pin to the STR3 output.

GND 5

Power Ground. Connect this pin to ground.

Vcc 6

Power Vcc. Input 5VSB supply.

C1 7

Charge Pump Cap. Attach flying capacitor between this pin and C2 to generate
internally used high voltage from 5V power supply.

C2 8

Charge Pump Cap. Attach flying capacitor between this pin and C1 to generate
internally used high voltage from 5V power supply.

ChrPmp 9

Charge Pump output. This pin produces voltage doubled 5V supply by charge-
pumping. Bypass with a 0.1uF capacitor.

DLEN

# 10

5VDL Enable. Control 5V

voltage output. Pull-up internally.

S5# 11

S5 Status. Control signal governing the soft off state S5. Pull-up internally.

S3# 12

S3 Status. Control signal governing the soft off state S3. Pull-up internally.

SET1

Voltage Selection 1. Combine with VSET2 to select operation mode and output
voltages of STR regulators.

SET0

Voltage Selection 0. Combine with VSET1 to select operation mode and output
voltages of STR regulators.

DLSB

5VSB Output Control. Connect this pin to the gate of a N-MOSFET to output
5VSB power to 5V

DRV

5V Output Control. Connect this pin to the gate of a N-MOSFET to output 5V
power to 5V

PWOK 17

Power OK. Open collector input/output. Used to indicate the ready of 5Vin supply. If
any STR supply (only STR1 in mode A) occurs over current and induce under-
voltage, PWOK will be pull down.

SS 18

Soft-Start. Attach a capacitor (0.033u) to this pin to determine the softstart rate. A
ramp generated by charging this capacitor with internal soft-start current (18uA) is
used to clamp the voltage rising slew rate of STR regulators and 5V

. Soft starting

avoids too much rush current during voltage setup.

STR

SEN1

STR1 Sense. Connect this pin to the STR1 output.

STR

DRV1

STR1 Driver. Connect this pin to the gate of a suitable N-channel MOSFET for
driving STR1 output.

Confidential

Revision

0.6

W83301R

Preliminary

5. Application Circuit

Figure 2. Mode A (DDR Mode) Application Circuit

Mode

VSET0

VSET1

STR1

Bus Termination Controller

0V 0V 2.5V

DUAL

1.25V

DUAL

0V NC 2.6V

DUAL

1.30V

DUAL

DDR

0V 5V 2.7V

DUAL

1.35V

DUAL

3.3Vdual

5VSB

3.3Vdual

5VSB

PWOK

5VDLEN

SLP_S5#

VSET1

MOSFET N

1000u

0.1u

MOSFET N

1000u

MOSFET N

0.1u

5VDLEN

5VSB

PWOK

STRdrv1

STRsen1

STRdrv2

STRsen2

STRdrv3

STRsen3

ChrPmp

GND

5VDRV

5VDLSB

VSET0

VSET1

MOSFET N

1.5k

0.1u

2.5V

1.25V

5VDUAL

(chipset)

Connect VSET0 and VSET1 as following table to
set operation mode and output voltage

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Revision

0.6

W83301R

Preliminary

5. Application Circuit

Figure 3. Mode B (SDRAM Mode) Application Circuit

3.3Vdual

5VSB

5VDUAL

3.3Vdual

5VSB

PWOK

5VDLEN

SLP_S5#

VSET1

MOSFET N

1000u

C11

0.1u

C10

0.1u

MOSFET N

1000u

MOSFET N

0.1u

5VDLEN

5VS
B

PWOK

STRdrv1

STRsen1

STRdrv2

STRsen2

STRdrv3

STRsen3

Chr
Pm
p

GN
D

5VDRV

5VDLSB

VSET0

VSET1

MOSFET N

1000u

0.1u

2.5V

3.3V

5VDUAL

1.8V

(chipset)

Connect VSET0 and VSET1 as following table
to set operation mode and output voltage

Mode

VSET0

VSET1

STR1

STR2

STR3

5V 5V

2.5V

DUAL

3.3V

DUAL

1.8V

DUAL

5V NC

2.6V

DUAL

3.4V

DUAL

1.8V

DUAL

SDRAM

5V 0V

2.7V

DUAL

3.5V

DUAL

1.8V

DUAL

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Revision

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W83301R

Preliminary

7.Functional Description

7.1 Mode Selection

The W83301R supports two modes for customer's multi-applications, as shown as

Table1, the mode A and mode B can selected via VSET0 pin. If this pin connects to 5V,
the chip will operate under mode A, otherwise the chip will operate under mode B when
VSET0 connects to ground.

Both mode A and B supports a linear switch to generate an ACPI-compliant 5V

voltage from ATX power supply 5V/5V

according to S5# and S3# signals. And user

also can turn off the whole 5V

output in S5 state via 5V

DLEN

# pin if needed.

Under the mode A operation, the chip provide a linear controller STR1 that drives a

N-channel MOSFET Q3 (refer to figure) to generate a regulated voltage 2.5V

DUAL

from an

external power source 3.3V

DUAL

, the 2.5 V

DUAL

is provide for RDRAM/DDRAM ACPI

suspend to RAM application. And In order to simply the circuit design and reduce
customer's cost, the W83301R also integrate a bus termination controller BT driving two
external N-channel MOSFETs (Q4, Q5) to generate a specific ACPI-compliant voltage
according to a half of STR1 output for sourcing and sinking bus redundant current.

Under the mode B operation, the chip provide three linear controllers, that is STR1-

2.5V

DUAL

, STR2- 3.3 V

DUAL

, and STR3- 1.8V

DUAL

, all of the three outputs drive a N-

channel MOSFET (Q3, Q4, and Q5) to generate an ACPI-compliant voltage by different
applications. Such as STR1- 2.5V

DUAL

for clock generator application, STR2- 3.3 V

DUAL

for SDRAM application, and STR3- 1.8V

DUAL

chipset application.

Besides, as shown in Table 1 the W83301R also provide a tri-state pin VSET1 to bias

an extra voltage up to 0.2V in each output for more performance but under mode A
operation, the BT output voltage will generated according to a half of STR1 output set by
VSET1.

Table 1. W83301R Control Table

Mode VSET0 VSET1

STR1

Bus Termination Controller

Remark

0V 0V

2.5V

DUAL

1.25V

DUAL

0V NC

2.6V

DUAL

1.30V

DUAL

0V 5V

2.7V

DUAL

1.35V

DUAL

-STR1 output for RDRAM/DDRAM voltage
-Bus Termination Controller for memory bus
redundant current sinking and sourcing.

Mode VSET0 VSET1

STR1

STR2

STR3

Remark

5V 5V

2.5V

DUAL

3.3V

DUAL

1.8V

DUAL

5V NC

2.6V

DUAL

3.4V

DUAL

1.8V

DUAL

5V 0V

2.7V

DUAL

3.5V

DUAL

1.8V

DUAL

-STR1 output for Clock Gen. voltage
-STR2 output for SDRAM voltage
-STR3 output for Chipset voltage

Confidential

Revision

0.6

W83301R

Preliminary

7.2 ACPI State Control

In order to meet the ACPI specification, the W83301R implement a state machine as

shown as Figure 5 to generate ACPI-compliant power state transition.

There are only five states in the state machine cause the W83301R only focus on the

memory ACPI control, and the five states are G3 (Mechanical-Off State), S0 (Full-Power
State), S3 (Sleeping State-Suspend to RAM), S5

(Soft-Off State), S5

Off

and all of these

states changed to the other according to the condition of S3#, S5# and 5V

DLEN

#. On the

other hand, cause of the W83301R allows customer to disable/enable the 5V

DUAL

output

in S5 state via 5V

DLEN

# pin, there are two states, S5

and S5

Off

, corresponding to S5

state. A soft ramp-up mechanism is needed to protect the 5V

output from the rush

current attack during the S5

Off

to S5

state

transition. Same as the 5V

output, the

W83301R also provides soft ramp-up mechanism during S5

to S0 state transition in

each STR output.

In the state machine, when the power on, and the 5V input from power supply arrive

4.5V, the chip will enter S5

Off

first from G3, and ramp-up into S5

state by two

conditions, the one is when 5V

DLEN

#=0 under standby power supply to resume the 5V

output, the other one is S3#=1 and S5#=1 the system will enter S1 state.

During S5

state, the chip will return back to S5

Off

when the customer wants

disabling the 5V

output (5V

DLEN

#=1) to save some power. And the chip will drive all

outputs into S0 state will S3#=1 and S5#=1.

When the system under the S0 state, the system should enter the S3-sleeping

(S3#=0, S5#=1) or S5-soft off (S5#=0) state when the system idle for a long time or user
power-off.

When the system suspend to RAM, the system will be wakeup and enter S0-full

power state by (S3#=1, S5#=1,PWOK=1), or get into S5-sleeping soft off state by
(S5#=0)

Table 2. W83301R Outputs Table

State

STR1

STR2

STR3

LUV Activity *

G3 Off Off

Off Off No

S5 (5V

Off)

Off

S5 (5V

On)

(Driven by

DLSB

)

Off Off Off No

(Driven by

DRV

)

On On On Yes

(Driven by

DLSB

)

On On On Yes

*When the STR2 & STR3 configured as bus termination controller, only STR1 has linear under voltage
function.

Confidential

Revision

0.6

W83301R

Preliminary

7.3 Charge Pump

In order to simply the design circuit and provide a good-price solution for customer,

the W83301R integrate with a switched-capacitor voltage doubler charge pump to
provide a higher driving voltage (Up to 10 volt) and can drive a single N-channel
MOSFETs in each output.

7.4 Power OK

The W83301R use a bi-direction Power OK signal to ensure the system can work

normally. When the system jump from state S3 to state S0, the W83301R will monitor the
input signal from PWOK pin to ensure that external system power is OK and then switch
each outputs into S0 stage; In the other hand, the W83301R will pull down the Power OK
signal to inform the system that a over current and induce under-voltage occurred.

7.5 Soft-Start

During `S5off' to `S5on' and `S5on' to `S0' state transitions, the 5Vdual and STR

voltages need to ramp up from 0 to their set values respectively. The charging current
flowing to output capacitors must be limited to avoid supply drop-off.

In W83301R, an internal 18 uA current source (Iss) charges an external capacitor

(Css) to generate a linear ramp-up voltage on SS pin (Vss). The Vss slews from 0 to
about 9V during the above-mentioned state transitions, and the Vss slew rate is used to
clamp the ramp-up rate of 5Vdual and STR output voltages. This output clamping allows
power-ups free of supply drop-off events.

Since the outputs are ramped up in a constant slew-rate, the current dedicated to

charge any output capacitor can be calculated with the following formula:

COUT

= Iss x (Cout / Css)

Some technique is included in W83301R to further reduce the total charging current:

In Mode B configuration, the start-up of ramp-up time STR3 (1.8V) will be advanced from
that of STR1 to reduce the overlap time of charging. And in Mode A configuration, the
bus-terminator is input clamped, and its output voltage slew-rate, so as its charging
current, will be limited to half of that of STR1.

Note that, too slow ramp-up rate is not recommended. If so, the state transition

mentioned above will be prolonged to much. Before Vss ramps up to its upper limit
(about 9V), the state transition will not be completed and will not go into next state.

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Revision

0.6

W83301R

Preliminary

8.Electrical Characteristics

8.1 ABSOLUTE MAXIMUM RATINGS

Stresses greater than those listed in this table may cause permanent damage to the

device. Precautions should be taken to avoid application of any voltage higher than the
maximum rated voltages to this circuit. Subjection to maximum conditions for extended
periods may affect reliability. Unused inputs must always be tied to an appropriate logic
voltage level (Ground or Vdd).

Symbol Parameter

Rating

Vss, V

Voltage on any pin with respect to GND

- 0.5 V to + 7.0 V

ChrPmp

- 0.5 V to + 12.0 V

Hi-V Pins

Pin# 1,2,3,4,8,15,16,18,19,20

GND-0.3 V to V

Chr-Pmp

+ 0.3V

Lo-V Pins

Pin# 7,10,11,12,13,14,17

GND-0.3 V to Vcc + 0.3V

STG

Storage Temperature

- 65

°C to + 150°C

Ambient Temperature

- 55

°C to + 125°C

Operating Temperature

°C to + 70°C

8.2 AC CHARACTERISTICS

Vcc=5V

± 5 %, T

= 0

°C to +70°C

Parameter Symbol

Min

Typ

Max

Units

Test

Conditions

Vcc SUPPLY CURRENT

Norminal Supply Current

5VSB

6 mA

POWER-ON RESET

Rising V

5VSB

Threshold

4.3

Chr_Pmp

> 8.5V

5VSB

Hysteresis

1 V

Rising V

Chr_Pmp

Threshold

8.5

5VSB

> 4.3V

Chr_Pmp

Hysteresis

1 V

SOFT-START

Soft-Start Current

Iss

18 uA

upper limit

9 V

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Revision

0.6

W83301R

Preliminary

8.2 AC CHARACTERISTICS (Continued)

Vcc=5V

± 5 %, T

= 0

°C to +70°C

Parameter Symbol

Min

Typ

Max

Units

Test

Conditions

STR1 lINEAR REGULATOR
Nominal Output Voltage

2.5 V VSET0=0V,

VSET1=0V

or VSET0=5V,VSET1=5V

Nominal Output Voltage

2.6 V VSET0=0V,

VSET1=NC

or VSET0=5V,VSET1=NC

Nominal Output Voltage

2.8

VSET0=0V, VSET1=5V

or VSET0=5V,VSET1=0V

Regulation

STR

SEN1

Under-Voltage Falling

Threshold

80 %

MAX STR

DRV1

Output

Voltage

I(STR

DRV1

) < 0.1mA

STR2 LINEAR
REGULATOR

Nominal Output Voltage

3.3 V VSET0=5V,VSET1=5V

Nominal Output Voltage

3.4 V VSET0=5V,VSET1=NC

Nominal Output Voltage

3.5

VSET0=5V,VSET1=0V

Regulation

STR

SEN1

Under-Voltage Falling

Threshold

80 %

MAX STR

DRV1

Output

Voltage

I(STR

DRV1

) < 0.1mA

STR3 LINEAR
REGULATOR

Nominal Output Voltage

1.8 V VSET0=5V

Regulation

STR

SEN1

Under-Voltage Falling

Threshold

83 %

MAX STR

DRV1

Output

Voltage

I(STR

DRV1

) < 0.1mA

BUS TERMINATOR

Nominal Output Voltage /
V

STRSEN1

50 %

VSET0=0V

Regulation

5VDUAL SWITCH
CONTROLLER

DRV

Output High Voltage

Cload=3000p

DRV

Sourcing Current

Cload=3000p

DRV

Sinking Current

400

Cload=3000p

DLSB

Output High Voltage

Cload=3000p

DLSB

Sourcing Current

Cload=3000p

DLSB

Sinking Current

230

Cload=3000p

S3#,S5#,5VDLEN#, PWOK,CHARGE PUMP

Confidential

Revision

0.6

W83301R

Preliminary

Input Logic High

2.2

Input Logic Low

0.8

PWOK Output Inpedence

150

ohm

LUV active

Charge Pump Frequency

200

KHz

9.Package Specification

20L SSOP-209 mil

0.002

0.197

0.291

7.80

7.40

8.20

5.30

6.90

5.00

5.60

7.50

7.20

2.00

1.85

0.323

0.307

0.073

0.079

0.220

0.272

0.295

0.283

0.209

MIN

DIMENSION IN

SYMBO

DIMENSION IN

MIN

MAX.

0.05

0.009

0.015

0.004

0.010

0.021

0.030

0.050

0.004

0.22

0.38

0.09

0.25

0.65

0.025

0.55

0.75

1.25

0.10

0.95

0.037

1.75

1.65

0.065

0.069

A2 A

SEATING PLANE

DTEAIL A

DETAIL A

SEATING PLANE

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Revision

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W83301R

Preliminary

10.Ordering Information

Part Number

Package Type

Production Flow

W83301R

20-PIN SSOP

Commercial, 0

°C to +70°C

11.How to Read the Top Marking

1st line: Winbond logo

2nd line: W883301R the part number

3rd line: Tracking code Tracking code 106 O B 1 1039050-21NA
106: packages made in Year 01', week 6
O: assembly house ID; O means OSE, G means GR, ...
A: the IC version
1: wafers manufactured in Winbond FAB I
1039050-21NA: wafer production series number

Headquarters

No. 4, Creation Rd. III

Science-Based Industrial Park
Hsinchu, Taiwan

TEL: 886-35-770066
FAX: 886-35-789467

www: http://www.winbond.com.tw/

Taipei Office

11F, No. 115, Sec. 3, Min-Sheng East Rd.
Taipei, Taiwan

TEL: 886-2-7190505

FAX: 886-2-7197502
TLX: 16485 WINTPE

Winbond Electronics (H.K.) Ltd.

Rm. 803, World Trade Square, Tower II
123 Hoi Bun Rd., Kwun Tong

Kowloon, Hong Kong

TEL: 852-27516023-7
FAX: 852-27552064

Winbond Electronics
(North America) Corp.

2730 Orchard Parkway

San Jose, CA 95134 U.S.A.
TEL: 1-408-9436666

FAX: 1-408-9436668

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.
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 sale.

W83301R

1060B11039050-21NA

inbond

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: W83301R

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: W83301R