BD3538F datasheet(4/20 Pages) ROHM

Part #	BD3538F

Description	Termination Regulators for DDR-SDRAMs

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Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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TSZ02201-0J2J0A900980-1-2

02.Nov.2015 Rev.001

www.rohm.com

TSZ22111・15・001

BD3538F

BD3538HFN

Electrical Characteristics

(Unless otherwise noted, Ta=25°C VCC=3.3V VEN=3V VVDDQ=1.8V VVTT_IN=1.8V)

Parameter

Symbol

Limit

Unit

Conditions

Min

Typ

Max

Standby Current

IST

-

0.5

1.0

mA

VEN=0V

Bias Current

ICC

-

2

4

mA

VEN=3V

[Enable]

High Level Enable Input Voltage

VENHIGH

2.3

-

5.5

V

Low Level Enable Input Voltage

VENLOW

-0.3

-

+0.8

V

Enable Pin Input Current

IEN

-

7

10

µA

VEN=3V

[Termination]

Termination Output Voltage 1

VVTT1

VVREF-30m

VVREF

VVREF+30

m

V

IVTT=-1.0A to +1.0A

Ta=0°C to 105°C (Note 9)

Termination Output Voltage 2

VVTT2

VVREF-30m

VVREF

VVREF+30

m

V

VCC=5V, VVDDQ=2.5V

VVTT_IN=2.5V

IVTT=-1.0A to +1.0A

Ta=0°C to 105°C (Note 9)

Source Current

IVTT+

1.0

-

A

Sink Current

IVTT-

-

-1.0

A

Load Regulation

∆VVTT

-

50

mV

IVTT=-1.0A to +1.0A

Line Regulation

Reg.l

-

20

40

mV

Upper Side ON-Resistance 1

RHRON1

-

0.45

0.9

Ω

Lower Side ON-Resistance 1

RLRON1

-

0.45

0.9

Ω

Upper Side ON-Resistance 2

RHRON2

-

0.4

0.8

Ω

VCC=5V, VVDDQ=2.5V

VVTT_IN=2.5V

Lower Side ON-Resistance 2

RLRON2

-

0.4

0.8

Ω

VCC=5V, VVDDQ=2.5V

VVTT_IN=2.5V

[Reference Voltage Input]

Input Impedance

ZVDDQ

70

100

130

kΩ

Output Voltage 1

VVREF1

1/2 x VVDDQ

-18m

1/2 x

VVDDQ

1/2 x

VVDDQ

+18m

V

IREF=-5mA to +5mA

Ta=0°C to 105°C (Note 9)

Output Voltage 2

VVREF2

1/2 x VVDDQ

-40m

1/2 x

VVDDQ

1/2 x

VVDDQ

+40m

V

IREF=-10mA to +10mA

Ta=0°C to 105°C (Note 9)

Output Voltage 3

VVREF3

1/2 x VVDDQ

-25m

1/2 x

VVDDQ

1/2 x

VVDDQ

+25m

V

VCC=5V, VVDDQ=2.5V

VVTT_IN=2.5V

IVREF=-5mA to +5mA

Ta=0°C to 105°C (Note 9)

Output Voltage 4

VVREF4

1/2 x VVDDQ

-40m

1/2 x

VVDDQ

1/2 x

VVDDQ

+40m

V

VCC=5V, VVDDQ=2.5V

VVTT_IN=2.5V

IVTT=-10mA to +10mA

Ta=0°C to 105°C (Note 9)

[UVLO]

Threshold Voltage

VUVLO

2.40

2.55

2.70

V

VCC : sweep up

Hysteresis Voltage

∆VUVLO

100

160

220

mV

VCC : sweep down

(Note 9) No tested on outgoing inspection

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