BL1551

BL1551—Single SPDT Analog Switch
2.7Ω
Ω Low Voltage SPDT Analog Switch in 6-pin SOT363
Features
Description
Wide Power Supply Range: 1.8V to 5.5V
The BL1551 is a Single Wide-Bandwidth, fast single-
High Bandwidth: 300MHz
pole double-throw (SPDT) CMOS switch featuring an
High Off-Isolation:
On-Resistance of 2.7 ohm at VCC=5.0V and wide
84dB at 1MHz
power supply range from 1.8V to 5.5V. It can be used
51dB at 10MHz
as an analog switch or as a low-delay bus switch.
On-Resistance: 2.7Ω(typ) at 5.0V
Fast Switching Time
The 300MHz high bandwidth performance supports
the high frequency application.
Break-before-make function for both parts eliminates
ton = 12.0ns; toff = 5.0ns
signal disruption during switching from preventing
TTL/CMOS Compatible
Break-Before-Make Switching
Rail-to-Rail Signal Range
Operation Temperature Range:
both switches being enabled simultaneously.
Block Diagram
-40℃ to 85℃
BL1551
Lead (Pb) Free SOT363-6 Package
A1
1
6
ENB
GND
2
5
VCC
A2
3
4
B
Applications
Wireless Handsets
MP3 Players
Portable Electronic Devices
Relay Replacement
PDAs
Audio & Video Signal Routing
PCMCIA Cards
Computer Peripherals
Modems
Function Table
Pin Configuration
ENB VCC
6
5
B
ENB
Function
1
A1 Connected to B
0
A2 Connected to B
4
Pin Description
ASSS
1
2
3
A1 GND A2
SSS: production id
http://www.belling.com.cn
-1-
Pin Name
Type
Description
VCC
PWR
Power Supply
GND
Ground
Ground
B
Input/Output
Data Port
A1
Input/Output
Data Port
A2
Input/Output
Data Port
ENB
Input
Logic Control Signal
Total 10 Pages
BL1551—Single SPDT Analog Switch
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Units
DC Supply Voltage
VCC
-0.3
6
V
DC Switch Voltage
VA1/ VA2/ VB
-0.3
VSUP + 0.3
V
DC Input Voltage
VENB
-0.3
VSUP + 0.3
V
Continuous Current
I(A1/A2/B)
-200
+200
mA
Peak Current(1)
IPEAK(A1/A2/B)
-300
+300
mA
TA
-40
85
℃
Operating Temperature Range
Notes:
(1) Pulsed at 1ms, 50% duty circle
(2) Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device.
These are stress ratings only and operations of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
(3) Control input(VENB) must be held HIGH or LOW, and mustn’t be floated.
RECOMMENDED OPERATING CONDITIONS
DC Supply Voltage (VCC) …………………………………………….1.8V to 5.5V
Switch Input Voltage (VS) ………………………………………………...0V to VCC
Control Input Voltage (VENB)……………………………………………. 0V to VCC
Operation Temperature (TA)……………………………………..-40℃ to +85℃
ORDERING INFORMATION
MODEL
PINPACKAGE
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
BL1551
SOT363 - 6
- 40°C to +85°C
Asss (1)
PACKAGE
OPTION
Tape and Reel, 3000
WHERE(1):
“sss” IS 3 DIGITS PRODUCTION ID
SIZE OF ALL OTHER CHARACTERS = 20 mil
COLOUR:
LASER MARKING
http://www.belling.com.cn
-2-
Total 10 Pages
BL1551—Single SPDT Analog Switch
DC ELECTRICAL CHARACTERISTICS ＠ +2.7V Supply
Parameter
Symbol
Conditions
Guaranteed Limit
Min. Typ.(1) Max.
Unit
Analog Switch
Analog Signal Range
VA1/VA2/VB
0
VCC
V
A1 On-Resistance
RON(A1)
VCC = 2.7V; IB =-10mA ; VA1=1.5V
5.5
Ω
RON(A2)
VCC = 2.7V; IB =-10mA ; VA2 =1.5V
5.5
Ω
A1 On-Resistance Flatness
(2)
RFLAT(A1)
VCC = 2.7V; IB =-10mA ; VA1 =1.5V
2.3
Ω
A2 On-Resistance Flatness
(2)
RFLAT(A2)
VCC = 2.7V; IB =-10mA ; VA2 =1.5V
2.3
Ω
A2 On-Resistance
On-Resistance Match Between
Channels
(3)
A1 or A2 Off Leakage Current
B On Leakage Current
△RON
VCC = 2.7V; IB =-10mA ;
VA2 /VA1=1.5
IOFF(A1) or
VCC = 3.6V; VA1 or VA2 = 3V, 0.3V;
IOFF(A2)
VB = 0.3V, 3 V
ION(B)
VCC = 3.6V; VA1 or VA2 = 3.3V, 0.3V;
VB = 0.3V, 3.3 V or floating
0.15
1
Ω
0.01
1
uA
0.01
1
uA
Digital I/O
Input Voltage High
VIH
Minimum High Level Input Voltage
Input Voltage Low
VIL
Maximum Low Level Input Voltage
Input Leakage Current
IENB
VENB = 0 or Vcc
1
V
0.01
0.5
V
1
uA
Note:
(1) Typical characteristics are at +3V supply and +25°C
(2) Flatness is defined as the difference between the maximum and minimum value of on resistance as
measured over the specified analog signal ranges.
(3) △RON= RON(MAX) - RON(MIN), between A1 and A2 .
http://www.belling.com.cn
-3-
Total 10 Pages
BL1551—Single SPDT Analog Switch
DYNAMIC CHARACTERISTICS ＠ +2.7V Supply
Parameter
Symbol
Conditions
Guaranteed Limit
Min. Typ. (1) Max.
Unit
AC ELECTRICAL CHARACTERISTICS
Turn-On Time
tON
Turn-Off Time
tOFF
Break-Before-Make Time
tBBM
VCC = 2.7V; VA1 or VA2 = 1.5V, RL =
300Ω; CL = 35pF, VIH=1.5V,VIL=0V
VCC = 2.7V; VA1 or VA2 = 1.5V, RL =
300Ω; CL = 35pF, VIH=1.5V,VIL=0V
VCC = 2.7V; VA1 or VA2 = 1.5V,
RL = 300Ω; CL = 35pF
17.0
ns
9.0
ns
15.0
ns
NC OFF Capacitance
COFF(A1)
f = 1MHz
5.5
pF
NO OFF Capacitance
COFF(A2)
f = 1MHz
5.5
pF
NC ON Capacitance
CON(A1)
f = 1MHz
15.5
pF
NO ON Capacitance
CON(A2)
f = 1MHz
15.5
pF
300
MHz
ADDITIONAL APPLICATION CHARACTERISTICS
3dB Bandwidth
Off Isolation
(2)
f3dB
VIso
Signal = 0dBm, RL = 50Ω, CL = 5pF
RL = 50Ω, CL = 5pF,
f = 1MHz
-84
dB
Signal = 0dBm
f =10MHz
-51
dB
Supply
Power Supply Range
Vcc
1.8
5.5
Note:
(1) Typical characteristics are at +3V supply and 25°C
(2) Off Channel Isolation = 20log10 [(VA1\A2)/VB]
http://www.belling.com.cn
-4-
Total 10 Pages
V
BL1551—Single SPDT Analog Switch
DC ELECTRICAL CHARACTERISTICS ＠ +5.0V Supply
Parameter
Symbol
Conditions
Guaranteed Limit
Min. Typ.(1) Max.
Unit
Analog Switch
Analog Signal Range
VA1/VA2/VB
0
VCC
V
A1 On-Resistance
RON(A1)
VCC = 5.0V; IB =-10mA ; VA1=3.5V
2.7
Ω
RON(A2)
VCC = 5.0V; IB =-10mA ; VA2 =3.5V
2.7
Ω
A1 On-Resistance Flatness
(2)
RFLAT(A1)
VCC = 5.0V; IB =-10mA ; VA1=3.5V
0.8
Ω
A2 On-Resistance Flatness
(2)
RFLAT(A2)
VCC = 5.0V; IB =-10mA ; VA2 =3.5V
0.8
Ω
0.15
Ω
A2 On-Resistance
On-Resistance Match Between
Channels
(3)
A1 or A2 Off Leakage Current
B On Leakage Current
△RON
VCC = 5.0V; IB =-10mA ;
VA2 /VA1=3.5
IOFF(A1) or VCC = 5.5V; VNO or VNC = 4.5V, 1.0V;
IOFF(A2)
ION(B)
VCOM = 1.0V, 4.5 V
VCC = 5.5V; VA1 or VA2 = 4.5V, 1.0V;
VB = 1.0V, 4.5 V or floating
0.01
1
uA
0.01
1
uA
Digital I/O
Input Voltage High
VIH
Minimum High Level Input Voltage
Input Voltage Low
VIL
Maximum Low Level Input Voltage
Input Leakage Current
IENB
VENB = 0 or Vcc
1
V
0.01
0.5
V
1
uA
Note:
(1) Typical characteristics are at +5.0V supply and +25°C
(2) Flatness is defined as the difference between the maximum and minimum value of on resistance as
measured over the specified analog signal ranges.
(3) △RON= RON(MAX) - RON(MIN), between A1 and A2 .
http://www.belling.com.cn
-5-
Total 10 Pages
BL1551—Single SPDT Analog Switch
DYNAMIC CHARACTERISTICS ＠ +5.0V Supply
Parameter
Symbol
Conditions
Guaranteed Limit
Min. Typ. (1) Max.
Unit
AC ELECTRICAL CHARACTERISTICS
Turn-On Time
tON
Turn-Off Time
tOFF
Break-Before-Make Time
tBBM
VCC = 5.0V; VA1 or VA2 = 3.0V, RL =
300Ω; CL = 35pF, VIH=1.5V,VIL=0V
VCC = 5.0V; VA1 or VA2 = 3.5V, RL =
300Ω; CL = 35pF, VIH=1.5V,VIL=0V
VCC = 5.0V; VA1 or VA2 = 3.5V,
RL = 300Ω; CL = 35pF
12.0
ns
5.0
ns
8.5
ns
NC OFF Capacitance
COFF(A1)
f = 1MHz
5.5
pF
NO OFF Capacitance
COFF(A2)
f = 1MHz
5.5
pF
NC ON Capacitance
CON(A1)
f = 1MHz
15.5
pF
NO ON Capacitance
CON(A2)
f = 1MHz
15.5
pF
300
MHz
ADDITIONAL APPLICATION CHARACTERISTICS
3dB Bandwidth
Off Isolation
(2)
f3dB
VIso
Signal = 0dBm, RL = 50Ω, CL = 5pF
RL = 50Ω, CL = 5pF,
f = 1MHz
-84
dB
Signal = 0dBm
f =10MHz
-51
dB
Supply
Power Supply Range
Vcc
1.8
5.5
Note:
(1) Typical characteristics are at +5.0V supply and 25°C
(2) Off Channel Isolation = 20log10 [(VA1\A2)/VB]
http://www.belling.com.cn
-6-
Total 10 Pages
V
BL1551—Single SPDT Analog Switch
TEST SETUP CIRCUITS
10mA
V1
VCC
BL1551
VCC
B
VA1 or VA2
0.1uF
VA2 or VA1
Ron=V1/ 10mA
GND
Figure1. Test Circuit for On Resister
VCC
DC=VCC/ 2
AC=1
50 ohm
VCC
BL1551
B
A1 or A2
VOUT
VCC
0.1uF
CL=5pF
50 ohm
GND
ENB
GND
Figure2. Test Circuit for Bandwidth
VCC
DC=VCC/ 2
AC=1
50 ohm
VCC
BL1551
B
A1 or A2
VOUT
VCC
0.1uF
CL=5pF
50 ohm
GND
ENB
GND
Figure3. Test Circuit for Off Isolation
http://www.belling.com.cn
-7-
Total 10 Pages
BL1551—Single SPDT Analog Switch
VCC
A2 or A1
VCC
BL1551
B
A1 or A2
VOUT
300 ohm
VCC
0.1uF
CL =35pF
GND
ENB
GND
50%
VENB
50%
90%
10%
VOUT
tON
tOFF
Test Circuit 4. Test Circuit for Switch Times
VCC
A2 or A1
A1 or A2
VCC
BL1551
B
VOUT
300 ohm
VCC
0.1uF
CL =35pF
GND
ENB
GND
VENB
50%
VOUT
tD
Test Circuit 5. Test Circuit for Break-Before-Make Time Delay, tD
http://www.belling.com.cn
-8-
Total 10 Pages
BL1551—Single SPDT Analog Switch
PACKAGE OUTLINE DIMENSIONS (SOT363-6)
SOT363-6
D
e1
e
E1
b
A1
A2
A
E
θ
0.20
L
http://www.belling.com.cn
C
L1
-9-
Total 10 Pages
BL1551—Single SPDT Analog Switch
Symbol
A
A1
A2
b
c
D
E
E1
e
e1
L
L1
θ
http://www.belling.com.cn
Dimensions in Millimeters
Min
Max
0.900
1.100
0.000
0.100
0.900
1.000
0.150
0.350
0.080
0.150
2.000
2.200
1.150
1.350
2.150
2.450
0.650TYP
1.200
1.400
0.525REF
0.260
0.460
0°
8°
- 10 -
Dimensions in Inches
Min
Max
0.035
0.043
0.000
0.004
0.035
0.039
0.006
0.014
0.003
0.006
0.079
0.087
0.045
0.053
0.085
0.096
0.026TYP
0.047
0.055
0.021REF
0.010
0.018
0°
8°
Total 10 Pages