B2026-2M [ETC]
Dual-Channel Power Distribution Switch; 双通道配电开关
| 型号： | B2026-2M |
| 厂家： | 
ETC |
| 描述： | Dual-Channel Power Distribution Switch |
| 文件： | 总3页 (文件大小：87K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Bay Linear
Inspire the Linear Power
Dual-Channel Power Distribution Switch
B2025/2076
Advance Information
Description
Features
•
•
•
•
•
•
•
•
•
2.7V to 5.5V Input
Under voltage Lockout
The Bay Linear B2026 & B2076 are a dual high-side power
switch recommended for general Propose self-powered and
bus-powdered universal serial for bus (USB) application
conforming to USB requirements. These devices include
thermal shutdown which in fault modes reduces the current
consumptions.
1µA Typical off-State Supply Current
500mA Minimum Continuous Load Current
B2076 with Circuit Breaker Mode
Logic Compatible Input
Thermal Shutdown & Short Circuit protection
Pin Compatible with B2526
Additional features such as thermal shutdown to prevent
catastrophic switch failure from excessively high current
loads, under voltage lockout (UVLO) to ensure that the device
remains off unless there is a valid input voltage present. These
device it includes internal current limits. The 2026/76 offer a
soft-start circuit for limit the inrush current and Fault status
output flag for time over current and thermal shutdown status.
Replacement for MIC2026/76
Applications
•
•
•
•
•
•
•
USB Host and self-Powered Hubs
USB Power Management
Battery-Charger Circuits
Hot Plug-In Power Supplies
Bus-Powered Hubs
Notebooks/PDA
ACPI power distribution
Bay Linear B2026/76 are available in 8-pin Dip and 8-pin
SOIC packages.
Package Information
Ordering Information
Package
Enable
Active High
Active Low
SO-8
B2026-1M
B2076-1M
B2026-1P
B2076-1P
B2026-2M
B2076-2M
B2026-2P
B2076-2P
SO-8
8 DIP
8 DIP
SO-8/8-DIP
8
7
5
Out (A)
IN
EN (A)
FLAG (A)
FLAG (B)
EN (B)
1
2
3
4
8
7
6
5
VOUT (A)
Logic
Charge
Pump
EN (A)
FLG (A)
1
2
BAY
B2026/76
V
IN
GND
OUT (B)
Logic
Charge
Pump
FLB (B)
EN (B)
3
4
V
Out (B)
Top View
6
GND
Bay Linear, Inc 2418Armstrong St., Livermore CA USA 9550
Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B2026/76
ABSOLUTE MAXIMUM RATINGS
OPERATING RATING
Supply Voltage…………………………………..+.6V
Fault Flag Voltage……………………………….+.6V
Fault Flag Current……………………………..25mA
Output Voltage……………………………………6V
Output Current……………………Internally Limited
Enable Input……………………………-0.3V to +3V
Storage Temperature………………-65°C to +150°C
Lead Temperature (Soldering 5 sec.)………….260°C
Supply Voltage...............................................+2.7V to +5.5V
Ambient Operating Temperature.................... -40°C to +85°C
Thermal Resistance
SOIC.................................................................. 160°C/W
DIP..................................................................... 105°C/W
ELECTRICAL CHARACTERISTICS
Parameters
at VIN = 5V, Ta=25°C, unless otherwise specified. (Note 1)
Typ
Min
Max
Units
Conditions
Supply Current
Switch Off, OUT = Open VENA=VEMB≤0.8V
0.75
0.75
100
100
1.7
5
Switch Off, OUT = Open VENA=VEMB≥2.4V
Switch On, OUT = Open VENA=VEMB≤0.8V
Switch On, OUT = Open VENA=VEMB ≥2.4V
Low to High Transition
5
µA
160
160
Enable Input Threshold
2.4
1
V
High to Low Transition, (Note1)
VEN = 0V to 5.5V
1.45
± 0.01
1
0.8
-1
Enable Input Current
Enable Input Capacitance
Switch Resistance
µA
pF
VIN = 5V
IOUT = 500mA, Each Switch
90
140
170
5
mΩ
VIN = 3.3V IOUT = 500mA, Each Switch
RL = 10Ω, CL=1µf
100
1.3
Output Turn-On Delay
Output Turn-On Rise Time
Output Turn-Off Delay
Output Turn-Off Fall Time
Output Leakage Current
Continuous Load Current
Short Circuit Current Limit
Current Limit Threshold
Over current Flag Response Delay
ms
ms
µs
µs
µA
A
1.15
35
32
4.9
RL = 10Ω, CL=1µf
RL = 10Ω, CL=1µf
100
100
10
RL = 10Ω, CL=1µf
Each output (output disabled)
Each output
0.5
0.9
1.0
3.0
3.0
20
Each output (enable into load), VOUT = 0V
0.5
1.5
1.25
1.25
7.0
A
A
Ramped Load applied to enable output, VOUT ≤ 4.0V
VIN=5V, apply VOUT=0V UNTIL FLAG LOW
VIN=3.3V, apply VOUT=0V UNTIL FLAG LOW
VOUT=0V to IOUT=ILIMIT
ms
Short Circuit Response Time
Error Flag Off Current
UVLO Threshold
µs
µA
VFLAG = 5V
0.01
2.2
1
2.7
2.5
VIN = Increasing
2.4
V
VIN = Decreasing
2.15
2.15
Bay Linear, Inc 2418Armstrong St., Livermore CA USA 9550
Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
- These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations, computer simulations and/
Advance Information
or initial prototype evaluation.
- These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are subject to change upon the
Preliminary Information
completion of the full characterization over the specified temperature and supply voltage ranges.
The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit design or permit any
industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any industrial property right resulting from the use of
the contents shown in the data book. Typical parameters can and do vary in different applications. Customer’s technical experts must validate all operating parameters
including “ Typical” for each customer application.
LIFE SUPPORT AND NUCLEAR POLICY
Bay Linear products are not authorized for and should not be used within life support systems which are intended for surgical implants
into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without the specific
written consent of Bay Linear President.
Bay Linear, Inc 2418Armstrong St., Livermore CA USA 9550
Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
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