SIP4612BDVP-T1-E3 [VISHAY]
Protected 1-A High-Side Load Switch; 受保护的1 -A高端负载开关
| 型号： | SIP4612BDVP-T1-E3 |
| 厂家： | 
VISHAY |
| 描述： | Protected 1-A High-Side Load Switch |
| 文件： | 总10页 (文件大小：376K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SiP4612A/B
Vishay Siliconix
Protected 1-A High-Side Load Switch
DESCRIPTION
FEATURES
SiP4612A/B is a protected highside power switch. It is
designed to operate from voltages ranging from 2.4 V to
5.5 V and handle a continuous current of 1 A. The user
settable current limit protects the input supply voltage from
excessive load currents that might cause a system failure.
SiP4612A/B has a low quiescent current of 11 µA and in
shutdown the supply current is reduced to less than 1 µA.
In addition to current limit, the SiP4612A/B is protected by
undervoltage lockout and thermal shutdown.
•
•
•
1 A continuous output current
2.4 V to 5.5 V supply voltage range
User settable current limit level
RoHS
COMPLIANT
• Low quiescent current
•
•
Undervoltage lockout
Thermal shutdown protection
• 4 kV ESD Rating-HBM
APPLICATIONS
The SiP4612A/B is available in a lead (Pb)-free 6-pin
PowerPAK® TSC75-6 for operation over the industrial
temperature range of - 40 °C to 85 °C.
•
•
•
Peripheral ports
Hot swap
Notebook computers
• PDAs
TYPICAL APPLICATION CIRCUIT
IN
OUT
2.4 to 5.5 V
Enable
Load
SiP4612A/B
C
IN
C
OUT
0.47 µF
1 µF
SET
ON/ON
GND
R
SET
GND
GND
Document Number: 74481
S-80971-Rev. B, 24-Apr-08
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1
SiP4612A/B
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS all voltages referenced to GND = 0 V
Parameter
VIN, VON, VON
IMAX
Limit
Unit
V
- 0.3 to 6
2
A
Storage Temperature
- 65 to 150
- 40 to 150
420
°C
°C
mW
Operating Junction Temperature
Power Dissipationa, PowerPAK TSC75-6
b
131
°C/W
Thermal Impedance (ΘJA
Notes:
)
, PowerPAK TSC75-6
a. Derate 7.6 mW/°C above TA = 70 °C.
b. Device mounted with all leads soldered or welded to PC board.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE all voltages referenced to GND = 0 V
Parameter
Limit
Unit
V
IN
2.4 to 5.5
- 40 to 85
Operating Temperature Range
°C
a
SPECIFICATIONS
Test Conditions Unless Specified
Limits
Min.a Typ.b Max.a
Unit
IN = 5 V, TA = - 40 to 85 °C
Parameter
Symbol
Power Supplies
Supply Voltage
Quiescent Current
Shutdown Current
Switch Off Current
Enable Inputs
ON/ON High
VIN
IQ
2.4
5.5
25
1
V
IN = 5 V, ON/ON = Active, lOUT = 0 A
IN = 5 V, ON/ON = Inactive
11
ISD
µA
IS(off)
IN = 5 V, ON/ON = Inactive, VOUT = 0 V, TA = 25 °C
1
VIH
VIL
1.5
IN = 2.4 V to 5.5 V
ON/ON = 5 V
V
µA
µs
ON/ON Low
0.5
1
ON/ON Leakage Current
Turn Off Time
ILH
tOFF
tON
0.5
55
5
IN = 5 V, RL = 10 Ω
Turn On Time
120
Output
IN = 5 V, TA = 25 °C, lOUT = 100 mA
IN = 3 V, TA = 25 °C, lOUT = 100 mA
RSET = 6.81 kΩ
150
180
0.5
85
225
250
On-Resistance
RDS
mΩ
Current Limit
IL
A
0.375
0.625
Minimum Current Limit
Current Limit Response Time
Undervoltage Lockout
UVLO Threshold
IL(min)
tRESP
mA
µs
IN = 5 V
4
VUVLO
VHYST
Rising Edge
1.8
2.4
V
UVLO Hysteresis
0.05
Thermal Shutdown
Thermal Shutdown Threshold
Hysteresis
T
165
°C
THYST
20
Notes:
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum (- 40 °C to 85 °C).
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
c. Guaranteed by design.
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Document Number: 74481
S-80971-Rev. B, 24-Apr-08
SiP4612A/B
Vishay Siliconix
PIN CONFIGURATION, ORDERING INFORMATION
OUT
IN
IN
OUT
GND
SET
NC
NC
GND
SET
ON/ON
ON/ON
Bottom View
Top View
TSC75-6 Package
ORDERING INFORMATION
Parameter
Marking
M1WXX
M2WXX
Temperature Range
- 40 °C to 85 °C
Package
SiP4612ADVP-T1-E3
SiP4612BDVP-T1-E3
PowerPAK TSC75-6
PowerPAK TSC75-6
- 40 °C to 85 °C
XX = Lot Code
W = Work week Code
PIN DESCRIPTION
Pin Number
Name
OUT
GND
SET
Function
1
2
3
Switch output
Ground pin
Current limit level set pin. The level is determinied by the value of a resistor connected from this pin to GND
Shutdown pin. ON/ON, active low on the SiP4612A to turn on the switch, active high to turn off SiP4612A
Active high on the SiP4612B to turn on the switch, active low to turn off SiP4612B
4
ON/ON
5
6
NC
IN
No connection
Input supply voltage and switch input
FUNCTIONAL BLOCK DIAGRAM
nW/L
IN
OUT
-
+
W/L
Under
Voltage
Lockout
Thermal
Shutdown
SET
+
-
ON/ON
Reference
Voltage
GND
Figure 1. SiP4612A/B Block Diagram
Document Number: 74481
S-80971-Rev. B, 24-Apr-08
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3
SiP4612A/B
Vishay Siliconix
DETAILED DESCRIPTION
increase in VIN - VOUT will cause the chip to dissipate more
heat. The power dissipation for the SiP4612A/B can be
expressed as
The SiP4612A/B limits load current by sampling the pass
transistor current and passing that through an external
resistor, RSET. The voltage across RSET, VSET, is then
compared with an internal reference voltage, VREF. In the
event that load current surpasses the set limit current, VSET
will exceed VREF causing the pass transistor gate voltage to
increase, thereby reducing the gate to source voltage of the
P = ILOAD x (VIN - VOUT
)
Once this exceeds the maximum power dissipation of the
package, the die temperature will rise. When the die
temperature exceeds an over-temperature limit of 165 °C,
the SiP4612A/B will shut down until it has cooled down to
145 °C, before starting up again. As can be seen in the figure
below, the SiP4612A/B will continue to cycle on and off until
the load is reduced or the part is turned off (See Figure 2).
The maximum power dissipation in any application is
dependant on the maximum junction temperature,
PMOS switch and regulating its current back down to ILIMIT
.
Setting the Current Limit Level
Setting the current limit level on the SiP4612A/B requires
some care to ensure the maximum current required by the
load will not trigger the current limit circuitry. The minimum
current limit threshold should be determined by taking the
maximum current required by the load, ILOAD, and adding
25 % headroom. The SiP4612A/B has a current limit
tolerance of 25 %, which is largely a result of process
variations from part to part, and also temperature and
VIN/VOUT variances. Thus, to ensure that the actual current
limit is never below the desired current limit a 1/0.75 = 1.33
coefficient needs to be added to the calculations. Knowing
the maximum load current required, the value of RSET is
calculated as follows.
T
= 125 °C, the junction-to-ambient thermal resistance
J(MAX)
for the TSC75-6 package, θJ-A = 131 °C/W, and the ambient
temperature, TA, which may be formulaically expressed as:
T (max) − TA
125 − TA
131
J
P(max) =
=
θJ−A
It then follows that assuming an ambient temperature of
70 °C, the maximum power dissipation will be limited to about
419 mW.
RSET = RSET coefficient/ILIMIT
where ILIMIT = (ILOAD x 1.33) x 1.25 and RSET coefficient is
3460 for a 500 mA current limit. For typical RSET coefficient
Reverse Voltage
The SiP4612A/B is designed to control current flowing from
IN to OUT. If the voltage on OUT is raised higher than IN
current will flow from OUT to IN but the current limit function
will not be available, as can be inferred from the block
diagram in Figure 1. Thus, in applications were OUT is used
to charge IN, careful considerations must be taken to limit
current through the device and protect it from becoming
damaged.
values given
a limit current refer to the "Typical
Characteristics" section.
Operation at Current Limit and Thermal Shutdown
In the event that a load higher than ILIMIT is demanded of the
SiP4612A/B, the load current will stay fixed at the current
limit established by RSET. However, since the required
current is not supplied, the voltage at OUT will drop. The
RSET = 3.32 kΩ
VOUT = (1 V/div)
IOUT (500 mA/div)
20 ms/div
Figure 2. Current Over load Condition. Load Switch turned on with 0.1 Ω load at time = 0 ms.
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Document Number: 74481
S-80971-Rev. B, 24-Apr-08
SiP4612A/B
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
20
20
15
10
5
16
12
8
4
0
0
- 40 - 20
0
20
40
60
80
100 120
0
1
2
3
4
5
6
V
- Input Voltage (V)
IN
Temperature (°C)
Quiescent Current vs. Temperature
Quiescent Current vs. Input Voltage
250
220
190
160
130
100
70
6
5
4
3
2
1
0
V
= 5 V, R
= 6.81 kΩ
SET
I
= 100 mA
OUT
OUT
V
= 3 V
IN
V
IN
= 5 V
V
= 4.2 V, R
= 4.32 kΩ
OUT
SET
- 40 - 20
0
20
40
60
80
100 120
0
0.5
1
1.5
2
I
(A)
Temperature (°C)
DS(on) vs. Temperature
OUT
R
Output Current vs. VOUT
10.0
1.0
10.0
1.0
0.1
0.01
0.1
0.01
0.001
0.001
- 40 - 20
0
20
Temperature (°C)
Off Switch Current vs. Temperature
40
60
80
100 120
- 40 - 20
0
20
Temperature (°C)
Off Supply Current vs. Temperature
40
60
80
100 120
Document Number: 74481
S-80971-Rev. B, 24-Apr-08
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5
SiP4612A/B
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
120
1.0
0.75
0.50
0.25
0.0
100
80
60
40
20
0
V
IN
= 3 V
V
= 5 V
= 3 V
IN
V
IN
= 5 V
V
IN
- 40
- 20
0
20
40
60
80
100
- 40
- 20
0
20
40
60
80
100
Temperature (°C)
Turn-On vs. Temperature
Temperature (°C)
Turn-Off vs. Temperature
RL = 10 Ω, CL = 0.47 µF
R
L = 10 Ω, CL = 0.47 µF
1.01
1.00
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
100
10
1
V
IH
V
IL
0.1
1
10
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
I
(A)
LIMIT
V
IN
- Input Voltage (V)
V
IH and VIL vs. VIN
RSET vs. ILIMIT
4
3
5
R
= 8 kΩ
SET
V
IN
- V
OUT
= 0.5 V
2
4
3
2
1
0
- 1
- 2
- 3
- 4
- 40 - 20
0
20
40
60
80
100 120
0.00
0.25
0.50
(A)
0.75
1.00
Temperature (°C)
Current Limit vs. Temperature
I
LIMIT
RSET Coefficient vs. ILIMIT
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Document Number: 74481
S-80971-Rev. B, 24-Apr-08
SiP4612A/B
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
250
250
200
150
100
50
I
V
= 500 mA
IN
= 5 V
OUT
200
150
100
50
V
OUT
= 5 V
0
0
100 200 300 400 500 600 700 800 900 1000
(mA)
- 40 - 20
0
20
Temperature (°C)
RDS(on)_reverse vs. Temperature
40
60
80
100 120
l
IN
RDS(VOUT-IN) vs. Current
TYPICAL WAVEFORMS
VOUT (1 V/div)
VOUT (1 V/div)
IOUT = 500 mA
IOUT = 500 mA
ON (1 V/div)
ON (1 V/div)
20 µs/div
Turn On
20 µs/div
Turn Off
V
IN (1 V/div)
V
IN (1 V/div)
IOUT = (2 A/div)
VOUT (1 V/div)
IOUT = (2 A/div)
VOUT (1 V/div)
1 µs/div
Short Circuit through 0.3 Ω, Vin = 3.3 V
1 µs/div
Short Circuit through 0.3 Ω, Vin = 5 V
Document Number: 74481
S-80971-Rev. B, 24-Apr-08
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SiP4612A/B
Vishay Siliconix
TYPICAL WAVEFORMS
VOUT 500 mV/div
VOUT
IOUT
IOUT 200 mA/div
100 µs/div
Current Limit
IN = 3.7 V, RSET = 4.32 kΩ, IOUT: 100 mA to 800 mA
V
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see http://www.vishay.com/ppg?74481.
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Document Number: 74481
S-80971-Rev. B, 24-Apr-08
Package Information
Vishay Siliconix
PowerPAK® TSC75-6L (Power IC only)
D1
Exposed pad
e
b
D
Pin4
Pin 5 Pin6
K
K
PPAK TSC75
(1.6 x 1.6 mm)
E1
E
Exposed pad
L
Pin3
Pin 2
e1
Pin1
K2
K2
Pin 1 Dot
By Marking
Top View
Bottom View
A
C
A1
Side View
MILLIMETERS
INCHES
DIM
A
Min
0.50
0
Nom
0.55
-
Max
0.65
0.05
0.30
0.20
1.65
1.05
1.65
0.65
Min
0.020
0
Nom
0.022
-
Max
0.026
0.002
0.012
0.010
0.065
0.041
0.065
0.026
A1
b
0.20
0.10
1.55
0.95
1.55
0.55
0.25
0.15
1.60
1.00
1.60
0.60
0.50 BSC
1.00 BSC
-
0.008
0.006
0.0061
0.037
0.061
0.022
0.010
0.008
0.063
0.039
0.063
0.024
0.020 BSC
0.039 BSC
-
C
D
D1
E
E1
e
e1
K
0.15
0.20
0.20
-
-
0.006
0.008
0.008
-
K2
L
-
0.25
0.30
0.010
0.012
ECN: S-61919-Rev. A, 02-Oct-06
DWG: 5955
Document Number: 74416
02-Oct-06
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Legal Disclaimer Notice
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 11-Mar-11
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