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BD3538F 数据表(PDF) 2 Page - Rohm

部件名 BD3538F
功能描述  Termination Regulators for DDR-SDRAMs
Download  11 Pages
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制造商  ROHM [Rohm]
网页  http://www.rohm.com
标志 ROHM - Rohm

BD3538F 数据表(HTML) 2 Page - Rohm

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Technical Note
BD3538F,BD3538HFN
2/10
www.rohm.com
2010.05 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Operating Conditions (Ta=25℃)
Parameter
Symbol
Ratings
Unit
Min
Max
Input Voltage
VCC
2.7
5.5
V
Termination Input Voltage
VTT_IN
1.0
5.5
V
VDDQ Reference Voltage
VDDQ
1.0
2.75
V
Enable Input Voltage
VEN
-0.3
5.5
V
No radiation-resistant design is adopted for the present product.
Electrical Characteristics (unless otherwise noted, Ta=25℃ VCC=3.3V VEN=3V VDDQ=1.8V VTT_IN=1.8V)
Parameter
Symbol
Limits
Unit
Condition
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
VTT1
VREF-30m
VREF
VREF+30m
V
ITT=-1.0A to 1.0A
Ta=0℃ to 105℃
*6
Termination Output Voltage 2
VTT2
VREF-30m
VREF
VREF+30m
V
VCC=5V, VDDQ=2.5V
VTT_IN=2.5V
ITT=-1.0A to 1.0A
Ta=0℃ to 105℃
*6
Source Current
ITT+
1.0
-
-
A
Sink Current
ITT-
-
-
-1.0
A
Load Regulation
VTT
-
-
50
mV
ITT=-1.0A to 1.0A
Line Regulation
Reg.l
-
20
40
mV
Upper Side ON Resistance 1
HRON1
-
0.45
0.9
Lower Side ON Resistance 1
LRON1
-
0.45
0.9
Upper Side ON Resistance 2
HRON2
-
0.4
0.8
VCC=5V, VDDQ=2.5V
VTT_IN=2.5V
Lower Side ON Resistance 2
LRON2
-
0.4
0.8
VCC=5V, VDDQ=2.5V
VTT_IN=2.5V
[Reference Voltage Input]
Input Impedance
ZVDDQ
70
100
130
kΩ
Output Voltage 1
VREF1
1/2×VDDQ
-18m
1/2×VDDQ 1/2
×
VDDQ
+18m
V
IREF=-5mA to 5mA
Ta=0℃ to 105℃
*6
Output Voltage 2
VREF2
1/2×VDDQ
-40m
1/2×VDDQ 1/2
×
VDDQ
+40m
V
IREF=-10mA to 10mA
Ta=0℃ to 105℃
*6
Output Voltage 3
VREF3
1/2×VDDQ
-25m
1/2×VDDQ
1/2×VDDQ
+25m
V
VCC=5V, VDDQ=2.5V
VTT_IN=2.5V
IREF=-5mA to 5mA
Ta=0℃ to 105℃
*6
Output Voltage 4
VREF4
1/2×VDDQ
-40m
1/2×VDDQ 1/2
×
VDDQ
+40m
V
VCC=5V, VDDQ=2.5V
VTT_IN=2.5V
ITT=-10mA to 10mA
Ta=0℃ to 105℃
*6
[UVLO]
Threshold Voltage
VUVLO
2.40
2.55
2.70
V
VCC : sweep up
Hysteresis Voltage
VUVLO
100
160
220
mV
VCC : sweep down
*6 Design Guarantee


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