SP2526EN-2 [SIPEX]
+3.0V to +5.5V USB Power Control Switch; + 3.0V至+ 5.5V USB电源控制开关
| 型号： | SP2526EN-2 |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | +3.0V to +5.5V USB Power Control Switch |
| 文件： | 总18页 (文件大小：192K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
SP2526
+3.0V to +5.5V USB Power Control Switch
■ Compliant to USB Specifications
■ 80µA On-State Supply Current
■ 1µA Shutdown Current
■ Output Can Be Forced Higher Than
Input (Off-State)
■ +3.0V to +5.5V Input Voltage Range
■ Two Independent Power Switches
■ Two Error Flag Outputs, Open Drain
■ 2.7V Undervoltage Lockout
■ Thermal Shutdown
■ 500mA Minimum Continuous Load
Current Per Switch
■ 1.25A Short Circuit Current Limit
■ 140mΩ Maximum On-Resistance
■ 1ms Soft-Start Power Up
■ Active-High Version: SP2526-1
■ Active-Low Version: SP2526-2
DESCRIPTION
The SP2526 device is a dual +3.0V to +5.5V USB Supervisory Power Control Switch ideal for
self-poweredandbus-poweredUniversalSerialBus(USB)applications. Eachswitchhaslow
on-resistance (80mΩ typical) and can supply 500mA minimum. The fault currents are limited
to 2.0A typical and the flag output pin for each switch is available to indicate fault conditions
to the USB controller. The 1ms soft start will eliminate any momentary voltage droop on the
upstream port that may occur when the switch is enabled in bus-powered applications. The
thermal shutdown feature will prevent damage to the device when subjected to excessive
current loads. The undervoltage lockout feature will ensure that the device will remain off
unless there is a valid input voltage present.
1
2
3
8
ENA
FLGA
FLGB
OUTA
7 IN
6
SP2526
GND
ENB 4
5
OUTB
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifica-
tions below is not implied. Exposure to absolute maxi-
mum rating conditions for extended periods of time
may affect reliability.
Supply Voltage......................................-0.3V, +6.0V
Operating Temperature.....................-40˚C to +85˚C
Storage Temperature......................-65˚C to +150˚C
Power Dissipation Per Package
8-pin NSOIC
(derate 6.14mW/OC above+70OC).................500mW
8-pin PDIP
(derate 11.8mW/OC above+70OC)...............1000mW
SPECIFICATIONS
Unless otherwise noted, the following specifications apply for VIN = +5.0V, TA = 25°C.
PARAMETER
Operating Voltage Range, VIN
Supply Current, IIN
MIN. TYP. MAX. UNITS
CONDITIONS
3.0
5.5
V
0.05
80
5.0
160
enable off, no output load
enable on, no output load
µA
Enable Input Threshold
Voltage
2.1
1.9
2.4
low to high transition
high to low transition
V
0.8
Enable Input Current
0.01
0.01
1
1
VEN = VOH(min) = 2.4V
VEN = VOL(max) = 0.8V
µA
Enable Input Capacitance
Switch Resistance
1
80
0.5
1
pF
mΩ
ms
ms
µs
µs
µA
A
140
3.3V<VIN < 5.0V,IL<500mA
RL=10Ω each output
Output Turn-On Delay
Output Turn-On Rise Time
Output Turn-Off Delay
Output Turn-Off Fall Time
Output Leakage Current
Current Limit Threshold
Short-Circuit Current Limit
RL=10Ω each output
1
20
20
RL=10Ω each output
1
RL=10Ω each output
.02
2.0
0.75
10
each output
2.8
1.25
each output, Ramped load applied to enable output
each output, VOUT = 0V
0.5
A
Over-Temperature Shutdown
Threshold
135
125
increasing temperature
decreasing temperature
OC
Error Flag Output Resistance
10
15
25
40
V
IN = 5V,IL = 10mA
Ω
µA
V
VIN = 3.3V,IL = 10mA
Error Flag Off Current
UVLO Threshold
0.01
1
VFLAG = 5V
2.7
2.6
3.0
VIN increasing, TMIN to TMAX ,VIN decreasing, TMIN to TMAX
2.5
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
2
1
2
3
8
ENA
FLGA
FLGB
OUTA
7 IN
6
SP2526
GND
ENB 4
5
OUTB
PIN ASSIGNMENTS
Pin 1 — ENA — Enable Input for MOSFET
SwitchA. Thisinputpinisactivehighforthe
SP2526-1 and active low for the SP2526-2.
Pin 5 — OUTA — Output for MOSFET Switch
Channel A. This is the output pin of the
MOSFET source of channel A, typically
connected to the switched side of the load.
Pin 2 — FLGA — Fault Flag Output for Switch
Channel A. This open drain output pin pulls
low to indicate overcurrent, undervoltage
lockout, and thermal shutdown conditions.
Pin 6 — GND — Ground reference. Supply
return.
Pin 7 — IN — Supply Input. This input pin is
connected to the MOSFET drain of both
switches. Connect +3.0V to +5.5V to this
input pin. The voltage at this input pin also
supplies the internal circuitry.
Pin 3 — FLGB — Fault Flag Output for Switch
Channel B. This open drain output pin pulls
low to indicate overcurrent, undervoltage
lockout, and thermal shutdown conditions.
Pin 4 — ENB — Enable Input for MOSFET
SwitchB. Thisinputpinisactivehighforthe
SP2526-1 and active low for the SP2526-2.
Pin 8 — OUTB — Output for MOSFET Switch
Channel B. This is the output pin of the
MOSFETsourceofchannelB,typicallycon-
nected to the switched side of the load.
.
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
3
Input and Output
FEATURES
The independent solid state MOSFET switches
connect the USB +5.0V supply voltage at the IN
pin to the OUTA and OUTB pins when enabled
by logic signals at ENA and ENB. The IN pin is
thepowersupplyconnectiontothedeviceandthe
drain of the output MOSFET switches.
Features of the SP2526 device include current
limiting, a +2.7V undervoltage lockout, over-
temperature shutdown, error flag output, soft
start, a switch-on resistance of 100mΩ over the
entire supply range, and a supply current of
100µA. The SP2526-1 device has an active-
high enable. The SP2526-2 device has an
active-low enable.
Typically, the current will flow through the
switches from IN to OUTA and OUTB towards
the load. If VOUT is greater than V when a switch
is enabled, the current will flowINfrom OUTA or
OUTB to the IN pin because the MOSFET chan-
nels are bidirectional when switched on.
THEORY OF OPERATION
TheSP2526isadualintegratedhigh-sidepower
switch optimized for self-powered and bus-
powered Universal Serial Bus (USB) applica-
tions. Thereareoperationalconditionsthatwill
enable or disable one or more of the output
MOSFET switches, depending on the type of
hazard. Certain conditions will activate the
open-drainerrorflagtransistorsforcingtheflag
outputs to ground. The SP2526 provides the
following functions:
Under normal operating condition, the MOSFET
switches will present 100mΩ maximum resis-
tance when closed. The output MOSFETs and
drivercircuitryaredesignedtoallowtheMOSFET
source to be externally forced to a higher voltage
than the drain when the switch is off.
Fault Flag Conditions
Fault conditions disable one or both MOSFET
switches, depending on the type of fault. FLGA
and FLGB are N-channel, open-drain MOSFET
outputs. The active low fault flag occurs when
one of the following conditions exist:
1) Independent Solid State Switches: Indepen-
dent MOSFET switches connect the IN pin to
the OUTA and OUTB pins when enabled by
logic signals at the ENA and ENB control pins.
1. Undervoltage
2. Overcurrent
3. Overtemperature
2) Fault Flag Conditions: Both the FLGA and
FLGBpinsareN-channel,open-drainMOSFET
outputs capable of sinking a 10mA load to
typically 100mV above ground.
Undervoltage Lockout
This voltage lockout mechanism prevents the
MOSFET switches from turning on until VIN is
greater than +2.7V.
3) Undervoltage Lockout: The lockout mecha-
nism monitors the input voltage and will enable
theMOSFETswitchesonlywhenthevoltageat
the VIN pin is greater than +2.7V.
After the switch turns on, if the voltage at VIN
dropsbelow+2.6V,thelockoutcircuitryshutsoff
both switches and signals the FLGA and FLGB
fault flags. In the undervoltage lockout state, the
FLGA and FLGB pins will be asserted. This
detection functions only when at least one
MOSFET switch is enabled.
4) Current Limiting Threshold: A current
limiting threshold prevents damage to the de-
vice and external load.
5) Thermal Shutdown: This mechanism pro-
tects the SP2526 and signals a fault condition if
the die temperature exceeds 135OC (typical).
This function has 10OC of hysteresis that pre-
vents the MOSFET switches from turning on
until the die temperature drops to 125OC (typi-
cal).
Output Current Limiting
The SP2526 has a preset current-limit threshold.
These switch control circuits will implement
current limiting which prevents damage to the
SP2526 and the external load while allowing a
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
4
GND
GND
GND
Figure 1. Internal Block Diagram for the SP2526
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
5
V
IN
0.1µF
7
IN
Ferrite
Bead
100kΩ
SP2526
100kΩ
8
OUTA
1
2
ENA
FLGA
RL
CL
ILOAD
*
3
4
FLGB
ENB
Ferrite
Bead
5
OUTB
6
GND
*For current limit response characteristics
Figure 2. Test Circuit for the SP2526
VIN
0.1µF
7
IN
Ferrite
Bead
100kΩ
100kΩ
SP2526
VBUS
D+
8
OUTA
1
2
ENA
USB
FLGA
CL
D-
Port 1
GND
3
4
FLGB
ENB
Ferrite
Bead
5
OUTB
6
GND
USB
Controller
D+
D-
SP5301
Ferrite
Bead
VBUS
D+
USB
Port 2
CL
D-
GND
Ferrite
Bead
D+
D-
SP5301
Figure 3. Typical Application Circuit for the SP2526
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
6
minimum current of 0.5A to be delivered.
The delay between a current limit fault and
thermal shutdown will vary with ambient tem-
perature, board layout, and load impedance, but
is typically several hundred milliseconds. A
designer
can command a USB controller to recognize the
fault and disable the appropriate channel within
this time.
The SP2526 MOSFET switches will exhibit
very low resistance (<100mΩ) or voltage drop
until the current limit is reached. The fold back
current is the current that is delivered into a short
circuit at the output.
If the SP2526 MOSFET switch is enabled into a
heavy load or short-circuit, the switch will im-
mediately go into a constant-current mode, re-
ducing the output voltage. The respective fault
flag will pull low until the condition is removed.
TYPICAL APPLICATIONS
Bypass Capacitors
A 0.1µF to 1.0µF bypass capacitor from the IN
pin to the GND pin is recommended to control
power supply transients. Refer to Figure 4.
Without a bypass capacitor, an output short may
cause sufficient ringing and damage the device.
Without a bypass capacitor, excessive supply
lead inductance is also a concern.
When a heavy load is connected to the SP2526
switch output, a large transient current may flow
until the current limiting circuitry responds.
The SP2526 will provide a low resistance switch
(100mΩ) between the input and output pins.
This low resistance will be maintained with
increasingcurrentuntilthe2.2Alimitisreached.
If load current exceeds this limit, the switch will
increase its resistance. The foldback current
(500mA minimum) is reached when there is a
short applied to the output. The 100mΩ switch
resistance is guaranteed for all load currents,
increasing or decreasing, that are below 500mA.
Input or output transients must not exceed the
absolute maximum supply voltage of VIN(MAX)
=
+6.0V even for a short duration to avoid risk of
damage to the device.
Transient Overcurrent Filter
When the SP2526 is enabled, large values of
capacitance at the output of the device will cause
inrushcurrenttoexceedtheshortcircuitcurrent-
limit threshold of the device and assert a flag
fault condition for FLGA and/or FLGB. The
duration of this time will depend on the size of
the output capacitance. During the capacitance
charging time, the device enters into foldback
mode. As the capacitance is charged, the current
decreases below the current-limit threshold and
the fault flags that are present at the FLGA and/
or FLGB pins will then be deasserted.
Thermal Shutdown
Under nominal load conditions, the switch resis-
tance is very low and internal power dissipation
is low. Under short circuit conditions, current is
limited and internal power dissipation is higher
but not extreme. Under intermediate loadcondi-
tions, both the voltage across the switch and the
current through the switch are at intermediate
values and internal power dissipation is highest.
In this last condition, the die temperature will
reach the thermal limit and the switches in both
channels will be shut off. As the die subse-
quently cools, the switch will turn on again. If
the load is not removed, the device will thermal
cycle in this manner to protect itself from dam-
age.
In USB applications, it is required that output
bulk capacitance is utilized to support hot-plug
occurences. When the SP2526 is enabled, the
flag may go active for about 1ms due to inrush
current exceeding the current-limit setpoint.
Additionally,duringhot-plugevents,inrushcur-
rents may also cause the fault flags at the FLGA
and/or FLGB pins to go active. Since these
conditions are not valid overcurrent faults, the
USBcontrollermustignorethefaultflagsduring
theseevents. Topreventthis, a1msRCfiltercan
be implemented as shown in Figure 5. Alterna-
Thermal shutdown is asserted if the die tempera-
ture exceeds 135OC and will not release until the
die termperature drops below 125OC. Thermal
shutdown will disable both output MOSFET
switches and force both FLGA and FLGB fault
flags low.
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
7
tively, a 1ms debounce routine may be pro-
grammed into the USB logic controller, elimi-
nating the need for the RC filter.
4) Each MOSFET switch channel can supply
500mA as required by USB downstream devices;
Soft Start Condition
5) Soft start eliminates any momentary voltage
drops on the upstream port that may occur when
the switches are enabled in bus-powered applica-
tions.
The soft start feature of the SP2526 is imple-
mented by holding the output turn-on rise time
to 1ms. When off, the device has high imped-
ance MOSFET channels that slowly become
low impedance as the device powers on. This
preventsaninrushcurrentfromcausingvoltage
drops that result from charging a capacitive
load and can pull the USB voltage bus below
specified levels. This satisfies the USB voltage
droop requirements for bus-powered applica-
tions. Refer to the circuit in Figure 6.
Refer to Table 1 for a USB compliance summary
of the SP2526. Additional features include the
following:
6) An Undervoltage Lockout ensures that the
device remains off unless there is a valid input
supply voltage present;
TheSP2526canprovideinrushcurrentlimiting
for applications with large load capacitances
7) +3.3V and +5.0V logic compatible enable
inputs;
where C
> 10µF. Refer to the circuit in
Figure 7BfUoLrKa configuration that will meet USB
transient regulation specifications with large
load capacitances.
8) Thermal Shutdown prevents the possiblity of
catastrophic switch failure from high-current
loads;
Enable Input
8) The device is available in both active-high and
active-low versions.
The ENA and ENB control pins must be driven
to a logic high or logic low for a clearly defined
signal input. Floating these control lines may
cause unpredictable operation.
Refer to Figures 8 to 26 for typical performance
characteristics of the SP2526.
USB Compliance
The SP2526 is ideal for self-powered and bus-
powered Universal Serial Bus (USB) applica-
tions. A USB port provides a +5.0V bus and
ground return line in addition to a twisted pair
for data.
The SP2526 will comply with the following
USB requirements:
1) The fault current is well below the UL 25VA
safety requirements;
2) The Flag Outputs are available to indicate
fault conditions to USB controllers;
3) The MOSFET switches' low on-resistance
meets USB voltage drop requirements;
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
8
USB
Controller
VIN
OVERCURRENT
SP2526
ENA
FLGA
FLGB
ENB
1
2
3
4
8
7
OUTA
IN
VIN
0.1µF to 1.0µF
6
5
GND
10kΩ
10kΩ
OUTB
SP2526
ENA
FLGA
FLGB
ENB
1
2
3
4
8
7
OUTA
IN
6
5
GND
0.1µF
OUTB
Figure 4. Bypass Capacitor at the Supply Pins
Figure 5. An RC Filter for Overcurrent Faults
USB Requirement
Inrush current limiting required
SP2526 Compliant Feature
Soft start turns on in 1ms
Suspend State of <500µA Required
Suspend Current of 1µA maximum
Bus powered hubs must have 350mV maximum
drop from cable plug to port
Switch on resistance of 140mΩ maximum
(translates to 70mV at 500mA)
Voltage supplied to host or hub port is +4.75V to +5.25V Operating range of +3.0V to +5.5V
A device that draws bus power must have a stable
supply within 100ms of VBUS reaching +4.4V
Turns on in 1ms
Over-current reporting capability required
Open drain fault flags
Table 1. USB Protocol Compliance of the SP2526 device
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
9
USB
Controller
USB Powered Hub
USB
Cable
Downstream
USB Device
USB
Cable
SP2526
ENA
FLGA
FLGB
ENB
1
2
3
4
8
7
OUTA
IN
V
BUS
USB Host
GND
0.1µF
CBULK
6
5
GND
4.7µF
OUTB
Figure 6. Soft Start Circuit Configuration for a Single Channel USB-powered Application with the SP2526
USB
Controller
USB Peripheral
OUTA
PORT A
GND
USB
Cable
SP2526-2
ENA
FLGA
FLGB
ENB
1
2
3
4
8
OUTA
IN
GND
7
V
BUS
0.1µF
CBULK
PORT B
OUTB
6
5
GND
4.7µF
USB Host
GND
OUTB
CBULK
Figure 7. Soft Start Circuit Configuration for SP2526 Applications with Large Load Capacitances
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
10
PERFORMANCE CHARACTERISTICS
VIN = +5.0V, single MOSFET switch section, and TAMB = +25OC unless otherwise noted.
Output On-Resistance vs. Temperature
Output On-Resistance vs. Supply Voltage
100
96
92
88
84
80
120
110
100
90
Vcc=5V
80
70
60
-40
-20
0
20
40
60
80
100
2.5
3
3.5
4
4.5
5
5.5
6
Temperature (°C)
Supply Voltage (V)
Figure 9. Output On-Resistance vs. Temperature
Figure 8. Output On-Resistance vs. Supply Voltage
UVLO Threshold Voltage
vs. Temperature
Enable Threshold Voltage vs. Supply Voltage
2.3
2.88
2.86
2.1
2.84
Rising
Enable Voltage Rising
1.9
1.7
1.5
1.3
1.1
0.9
2.82
2.8
2.78
2.76
2.74
Enable Voltage Falling
2.72
Falling
2.7
2.68
2.5
3
3.5
4
4.5
5
-40
-20
0
20
40
60
80
100
Supply Voltage (V)
Temperature (°C)
Figure 11. Control Threshold vs. Supply Voltage
Figure 10. Undervoltage Threshold Voltage vs.
Temperature
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
11
PERFORMANCE CHARACTERISTICS (continued)
VIN = +5.0V, single MOSFET switch section, and TAMB = +25OC unless otherwise noted.
Supply Current vs. Supply Voltage
Offstate Supply Current
vs. Supply Voltage
120
1.8
1.6
110
1.4
100
1.2
1.0
90
0.8
80
0.6
0.4
70
0.2
60
0.0
3
3.5
4
4.5
5
5.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
Supply Voltage (V)
Figure 13. Off-state Supply Current vs. Supply Voltage
Figure 12. On-state Supply Current vs. Supply Voltage
Offstate Supply Current
Supply Current vs. Temperature
vs. Temperature
5.0
100
4.5
4.0
Vcc=5V
95
Switches Enabled
Vcc=5V
3.5
Switches Disabled
3.0
2.5
2.0
1.5
1.0
0.5
0.0
90
85
80
75
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Temperature (°C)
Temperature (°C)
Figure 15. Off-state Supply Current vs. Temperature
Figure 14. On-state Supply Current vs. Temperature
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
12
PERFORMANCE CHARACTERISTICS (continued)
VIN = +5.0V, single MOSFET switch section, and TAMB = +25OC unless otherwise noted.
Enable Threshold Voltage
vs. Temperature
2.5
SP2526 Rev B
Vcc=5V
VIN
Enable Voltage Rising
2.3
RL = 35Ω
CL = 10µF
2.1
VOUT
1.9
FLAG
Enable Voltage Falling
IOUT
1.7
200mA/Div
1.5
-40
-20
0
20
40
60
80
100
Temperature (°C)
Figure 17. Input Voltage Response
Figure 16. Control Threshold vs. Temperature
FLAG
EN
FLAG
RL 35Ω
CL = 10µF
VOUT
VOUT
IOUT
IOUT
Figure 19. Turn-on/Turn-off Characteristics Where
RL= 35Ω and CL = 10µF
Figure 18. Current-Limit Response With a Ramped
Load
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
13
PERFORMANCE CHARACTERISTICS (continued)
VIN = +5.0V, single MOSFET switch section, and TAMB = +25OC unless otherwise noted.
SP2526 Rev B
SP2526 Rev B
EN
EN
RL = 35Ω
CL = 150µF
FLAG
VOUT
IOUT
FLAG
VOUT
IOUT
200mA/ Div
0.5A/DIV
Figure 20. Turn-on/Turn-off Characteristics where RL =
35Ω and CL = 150µF
Figure 21. Short Circuit Response (Enable into Short
Circuit)
SP2526 Rev B
FLAG
FLAG
VOUT
VOUT
IOUT
IOUT
1A/DIV
Figure 22. Short Circuit Response (Short Applied To
Output)
Figure 23. Short Circuit Transient Response (Short
Applied To Output)
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
14
PERFORMANCE CHARACTERISTICS (continued)
VIN = +5.0V, single MOSFET switch section, and TAMB = +25OC unless otherwise noted.
SP2526 Rev B
5
EN
4.5
4
RL = 1Ω
FLAG
3.5
3
VOUT
2.5
2
VIN = 5
1.5
IOUT
1
1A/DIV
0.5
0
0
0.5
1
1.5
2
2.5
3
3.5
I
OUT
Figure 25. Current Limit Response (Pulsed Load
applied at Output)
Figure 24. Short Circuit Response (Enable into Short
Circuit)
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
15
PACKAGE: PLASTIC
SMALL OUTLINE (SOIC)
(NARROW)
E
H
h x 45°
D
A
Ø
A1
L
e
B
DIMENSIONS (Inches)
Minimum/Maximum
(mm)
8–PIN
14–PIN
0.053/0.069
16–PIN
A
A1
B
D
E
0.053/0.069
(1.346/1.748) (1.346/1.748) (1.346/1.748)
0.053/0.069
0.004/0.010
(0.102/0.249
0.004/0.010
(0.102/0.249) (0.102/0.249)
0.004/0.010
0.014/0.019
(0.35/0.49)
0.013/0.020 0.013/0.020
(0.330/0.508) (0.330/0.508)
0.189/0.197
(4.80/5.00)
0.337/0.344 0.386/0.394
(8.552/8.748) (9.802/10.000)
0.150/0.157 0.150/0.157
0.150/0.157
(3.802/3.988) (3.802/3.988) (3.802/3.988)
e
0.050 BSC
(1.270 BSC)
0.050 BSC
(1.270 BSC)
0.050 BSC
(1.270 BSC)
H
h
0.228/0.244
0.228/0.244
0.228/0.244
(5.801/6.198) (5.801/6.198) (5.801/6.198)
0.010/0.020
(0.254/0.498) (0.254/0.498) (0.254/0.498)
0.010/0.020
0.010/0.020
L
0.016/0.050 0.016/0.050 0.016/0.050
(0.406/1.270) (0.406/1.270) (0.406/1.270)
Ø
0°/8°
(0°/8°)
0°/8°
(0°/8°)
0°/8°
(0°/8°)
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
16
PACKAGE: PLASTIC
DUAL–IN–LINE
(NARROW)
E1
E
D1 = 0.005" min.
(0.127 min.)
A1 = 0.015" min.
(0.381min.)
D
A = 0.210" max.
(5.334 max).
C
A2
Ø
L
B1
B
e
= 0.300 BSC
(7.620 BSC)
e = 0.100 BSC
(2.540 BSC)
A
ALTERNATE
END PINS
(BOTH ENDS)
DIMENSIONS (Inches)
Minimum/Maximum
(mm)
16–PIN
18–PIN
8–PIN
14–PIN
20–PIN
22–PIN
0.115/0.195
(2.921/4.953)
0.115/0.195
(2.921/4.953)
0.115/0.195
0.115/0.195
0.115/0.195
(2.921/4.953)
0.115/0.195
(2.921/4.953)
A2
(2.921/4.953) (2.921/4.953)
0.014/0.022
(0.356/0.559)
0.014/0.022
(0.356/0.559)
0.014/0.022
0.014/0.022
0.014/0.022
(0.356/0.559)
0.014/0.022
(0.356/0.559)
B
(0.356/0.559) (0.356/0.559)
0.045/0.070
0.045/0.070
0.045/0.070 0.045/0.070
0.045/0.070
0.045/0.070
B1
C
(1.143/1.778)
(1.143/1.778)
(1.143/1.778) (1.143/1.778)
(1.143/1.778)
(1.143/1.778)
0.008/0.014
(0.203/0.356)
0.008/0.014
(0.203/0.356)
0.008/0.014 0.008/0.014
0.008/0.014
(0.203/0.356)
0.008/0.014
(0.203/0.356)
(0.203/0.356) (0.203/0.356)
0.980/1.060 1.145/1.155
0.880/0.920
(22.352/23.368)
0.780/0.800
(19.812/20.320)
0.355/0.325
(9.017/10.160) (18.669/19.685)
0.735/0.775
D
(24.892/26.924) (29.083/29.337)
0.300/0.325
0.300/0.325
0.300/0.325 0.300/0.325
0.300/0.325
0.300/0.325
E
(7.620/8.255)
(7.620/8.255)
(7.620/8.255) (7.620/8.255)
0.240/0.280 0.240/0.280
(7.620/8.255)
(7.620/8.255)
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
E1
L
(6.096/7.112) (6.096/7.112)
0.115/0.150
(2.921/3.810)
0.115/0.150
(2.921/3.810)
0.115/0.150 0.115/0.150
(2.921/3.810) (2.921/3.810)
0.115/0.150
(2.921/3.810)
0.115/0.150
(2.921/3.810)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
Ø
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
17
ORDERING INFORMATION
Model
Temperature Range
Package Types
SP2526-1EN ................................................... -40°C to +85°C ................................................... 8-pin NSOIC
SP2526-1EN/TR.............................................. -40°C to +85°C ........................... (Tape & Reel) 8-pin NSOIC
SP2526-2EN ................................................... -40°C to +85°C ................................................... 8-pin NSOIC
SP2526-2EN/TR.............................................. -40°C to +85°C ........................... (Tape & Reel) 8-pin NSOIC
Co rp o ra tio n
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation
Headquarters and
Sales Office
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: sales@sipex.com
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.
Rev. 8/21/01
SP2526 +3.0V to +5.5V USB Power Control Switch
© Copyright 2001 Sipex Corporation
18
相关型号：
SP2555NUTG
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LITTELFUSE
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