SiP4613A, SiP4613B Datasheet

Product is End of Life 12/2014
SiP4613A, SiP4613B
Vishay Siliconix
Protected 1-A High-Side Load Switch
DESCRIPTION
FEATURES
SiP4613A, SiP4613B 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.
• 1 A continuous output current
SiP4613A, SiP4613B has a low shutdown supply current,
which is reduced to less than 1 µA. A flag output CL is
available to indicate fault conditions such as output short
and thermal protection.
• Undervoltage lockout
• 2.4 V to 5.5 V supply voltage range
RoHS
• User settable current limit level
COMPLIANT
• Low quiescent current
• Thermal shutdown protection
• 4 kV ESD rating-HBM
In addition to current limit, the SiP4613A, SiP4613B is
protected by undervoltage lockout and thermal shutdown.
APPLICATIONS
• Peripheral ports
The SiP4613A, SiP4613B 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.
• Hot swap
• Notebook computers
• PDAs
TYPICAL APPLICATION CIRCUIT
2.4 V to 5.5 V
IN
CIN
CL
1 µF
RCL
5K
CL
OUT
Load
SiP4613A
SiP4613B
COUT
0.47 µF
Enable
SET
ON/ON
GND
RSET
GND
Document Number: 69998
S-82461-Rev. B, 06-Oct-08
GND
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SiP4613A, SiP4613B
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS all voltages referenced to GND = 0 V
Parameter
VIN, VON, VON
IMAX
Storage Temperature
Operating Junction Temperature
Limit
Unit
- 0.3 to 6
2
- 65 to 150
- 40 to 150
V
A
°C
°C
420
mW
131
°C/W
Power Dissipationa, PowerPAK TSC75-6
b
Thermal Impedance (ΘJA) , PowerPAK TSC75-6
Notes:
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
IN
Operating Temperature Range
Limit
Unit
2.4 to 5.5
- 40 to 85
V
°C
SPECIFICATIONSa
Parameter
Symbol
Test Conditions Unless Specified
IN = 5 V, TA = - 40 °C to 85 °C
Limits
Min.a
Typ.b
Max.a
Unit
5.5
V
Power Supplies
Supply Voltage
VIN
Quiescent Current
IQ
2.4
IN = 5 V, ON/ON = Active, lOUT = 0 A
100
Shutdown Current
ISD
IN = 5 V, ON/ON = Inactive
1
Switch Off Current
IS(off)
IN = 5 V, ON/ON = Inactive, VOUT = 0 V, TA = 25 °C
1
µA
Enable Inputs
ON/ON High
VIH
ON/ON Low
VIL
ON/ON Leakage Current
ILH
Turn Off Time
tOFF
Turn On Time
tON
IN = 2.4 V to 5.5 V
1.5
0.5
ON/ON = 5 V
1
0.5
5
55
120
IN = 5 V, TA = 25 °C
150
225
IN = 3 V, TA = 25 °C
180
250
0.5
0.625
IN = 5 V, RL = 10 Ω
V
µA
µs
Output
On-Resistance
Current Limit
Minimum Current Limit
RDS
IL
RSET = 6.81 kΩ
0.375
IL(min)
Output Short Circuit Current
ISH
RSET = 6.81 kΩ
tRESP
IN = 5 V
UVLO Threshold
VUVLO
Rising Edge
UVLO Hysteresis
VHYST
0.350
0.5
A
mA
125
Current Limit Response Time
mΩ
0.650
A
µs
4
Undervoltage Lockout
1.8
2.4
0.05
V
Thermal Shutdown
Thermal Shutdown Threshold
Hysteresis
T
THYST
165
20
°C
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: 69998
S-82461-Rev. B, 06-Oct-08
SiP4613A, SiP4613B
Vishay Siliconix
PIN CONFIGURATION, ORDERING INFORMATION
OUT
IN
IN
OUT
GND
CL
CL
GND
ON/ON
SET
ON/ON
SET
Bottom View
Top View
TSC75-6 PACKAGE
ORDERING INFORMATION
Part Number
SiP4613ADVP-T1-E3
SiP4613BDVP-T1-E3
XX = Lot Code
W = Work week Code
Marking
Temperature Range
Package
M3XXX
M4XXX
- 40 °C to 85 °C
- 40 °C to 85 °C
PowerPAK TSC75-6
PowerPAK TSC75-6
PIN DESCRIPTION
Pin Number
Name
Function
1
2
3
OUT
GND
SET
4
ON/ON
5
6
CL
IN
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 SiP4613A to turn on the switch, active high to turn off SiP4613A
Active high on the SiP4613B to turn on the switch, active low to turn off SiP4613B
CL pin will go low if SiP4613 is operating in current limited condition
Input supply voltage and switch input
FUNCTIONAL BLOCK DIAGRAM
nW/L
IN
OUT
CL
Under
Voltage
Lockout
W/L
Thermal
Shutdown
SET
ON/ON
Reference
Voltage
GND
Figure 1. SiP4613A/B Block Diagram
Document Number: 69998
S-82461-Rev. B, 06-Oct-08
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SiP4613A, SiP4613B
Vishay Siliconix
DETAILED DESCRIPTION
The SiP4613A, SiP4613B 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
PMOS switch and regulating its current back down to ILIMIT.
Setting the Current Limit Level
Setting the current limit level on the SiP4613A, SiP4613B
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 SiP4613A, SiP4613B 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 1/0.80
= 1.25 coefficient needs to be added to the calculations.
Knowing the maximum load current required, the value of
RSET is calculated as follows.
It then follows that assuming an ambient temperature of
70 °C, the maximum power dissipation will be limited to about
419 mW.
There is CL pin designed to indicate the current limit status of
SiP4613. A typical 5 kΩ resistor is required to connect
between CL pin and IN pin. In the event of the output over
load, the current limit flag pin CL will go low to indicate the
current limit status of the device. Figure 2 shows the voltage
on CL pin go low after output short.
VOUT (500 mV/div)
CL (500 mV/div)
VOUT = 2.4 V
RSET = 6.81 kΩ
50 µs/div
Figure 2
RSET = RSET coefficient/ILIMIT
where ILIMIT = (ILOAD x 1.25) x 1.20 and RSET coefficient is
3460 for a 500 mA current limit. For typical RSET coefficient
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
SiP4613A, SiP4613B 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 increase in VIN - VOUT will cause the chip to dissipate
more heat. The power dissipation for the SiP4613A,
SiP4613B can be expressed as
The voltage signal in CL pin is not only used to indicate the
output short circuit status. It is also used to indicate the
thermal protection status of the device. Once the thermal
protection is activated in the severe output short circuit
condition, the voltage signal on the CL pin will run into the
thermal protection cycling. Figure 3 shows the voltage
waveform of CL pin after activation of the thermal protection
circuit due to the severe short circuit status of the device’s
output.
VOUT = 5.5 V
RSET = 6.81 kΩ
VOUT (2 V/div)
CL (2 V/div)
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 SiP4613A, SiP4613B will shut down until it has cooled
down to 145 °C, before starting up again. As can be seen in
the figure below, the SiP4613A, SiP4613B will continue to
cycle on and off until the load is reduced or the part is turned
off (see figure 4 on next page).
The maximum power dissipation in any application is
dependant on the maximum junction temperature,
TJ(MAX) = 125 °C, the junction-to-ambient thermal resistance
for the TSC75-6 package, θJ-A = 131 °C/W, and the ambient
temperature, TA, which may be formulaically expressed as:
P (max) =
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4
TJ (max) - TA
θJ- A
=
20 ms/div
Figure 3
The thermal protection is the final protection to the device.
The device will be completely shut down including the open
drain current limit indicator pin CL until the device
temperature drop below 145 °C.
125 - TA
131
Document Number: 69998
S-82461-Rev. B, 06-Oct-08
SiP4613A, SiP4613B
Vishay Siliconix
Reverse Voltage
The SiP4613A, SiP4613B 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.
RSET = 3.32 kΩ
VOUT = (1 V/div)
IOUT (500 mA/div)
20 ms/div
Figure 4. Current Over load Condition. Load Switch turned on with 0.1 Ω load at time = 0 ms.
Document Number: 69998
S-82461-Rev. B, 06-Oct-08
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SiP4613A, SiP4613B
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
40
70
35
Quiescent Current (µA)
Quiescent Current (µA)
60
50
40
30
20
10
30
25
20
15
10
5
0
0
- 40
10
60
110
160
0
1
2
4
5
6
VIN - Input Voltage (V)
Temperature (°C)
Quiescent Current vs. Input Voltage
Quiescent Current vs. Temperature
6
3
250
VOUT = 5.5 V
I OUT = 100 mA
220
5
VOUT = 3.9 V
3
R DS(on) - (mΩ)
VOUT (V)
4
VOUT = 2.4 V
190
VIN = 3 V
160
2
130
1
100
VIN = 5 V
RSET = 6.81 kΩ
70
- 40
0
0
0 .1
0 .2
0 .3
0 .4
0 .5
0 .6
0 .7
- 20
0
20
40
60
80
100
120
Temperature (°C)
IOUT (V)
RDS(on) vs. Temperature
Output Voltage vs. Output Current
1
10.0
Off Switch Current (µA)
Off Supply Current (µA)
10-1
10-2
10-3
1.0
0.1
0.01
10-5
10-6
- 40
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- 20
0
20
40
60
80
100
120
0.001
- 40
- 20
0
20
40
60
80
100
Temperature (°C)
Temperature (°C)
Off Supply Current vs. Temperature
Off Switch Current vs. Temperature
120
Document Number: 69998
S-82461-Rev. B, 06-Oct-08
SiP4613A, SiP4613B
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
120
1
VIN = 3 V
Turn-On Time (µS)
Turn-On Time (µS)
100
80
VIN = 5 V
60
40
VIN = 5 V
0.5
VIN = 3 V
20
0
- 40
- 20
0
20
40
60
80
0
- 40
100
- 20
0
20
40
60
Temperature (°C)
Temperature °C)
Turn-On vs. Temperature
RL = 10 Ω, CL = 0.47 µF
Turn-Off vs. Temperature
RL = 10 Ω, CL = 0.47 µF
1.01
80
100
100
1.00
0.99
0.97
RSET (kΩ)
VIH and VIL (V)
0.98
0.96
0.95
VIH
10
VIL
0.94
0.93
0.92
0.91
2.5
3.0
3.5
4.0
4.5
5.0
5.5
1
0.1
6.0
1
10
VIN - Input Voltage (V)
ILIMIT (A)
VIH and VIL vs. VIN
RSET vs. ILIMIT
4
4 .0
3.9
RSET = 8 kΩ
VIN - VOUT = 0.5 V
3
2
3.7
Current Limit (%)
RSET ILIMIT Product (kV)
3.8
3.6
3.5
3.4
3.3
1
0
-1
-2
3.2
-3
3.1
3 .0
0
0 .2 5
0 .5
ILIMIT (A)
RSET Coefficient vs. ILIMIT
Document Number: 69998
S-82461-Rev. B, 06-Oct-08
0 .7 5
-4
- 40
- 20
0
20
40
60
80
100
120
Temperature (°C)
Current Limit vs. Temperature
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SiP4613A, SiP4613B
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
250
250
IIN = 100 mA
VOUT = 5 V
200
R DS(on) - (mΩ)
R DS(on) - (mΩ)
200
150
100
50
- 40
VOUT = 5 V
150
100
50
0
- 20
0
20
40
60
80
100
120
0
100 200 300 400 500 600 700 800 900 1000
Temperature (°C)
lIN (mA)
RDS(on)_reverse vs. Temperature
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
20 µs/div
Turn On
Turn Off
VIN (1 V/div)
VIN (1 V/div)
IOUT = (1 A/div)
IOUT = (2 A/div)
VOUT (1 V/div)
VOUT (1 V/div)
10 µs/div
Short Circuit through 0.3 Ω, Vin = 3.3 V
10 µs/div
Short Circuit through 0.3 Ω, Vin = 5 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?69998.
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Document Number: 69998
S-82461-Rev. B, 06-Oct-08
Package Information
Vishay Siliconix
PowerPAK ® TSC75-6L (Power IC only)
D1
Exposed pad
e
b
D
Pin4
Pin 5
Pin6
K
E
PPAK TSC75
(1.6 x 1.6 mm)
E1
Exposed pad
K
L
Pin3
Pin 2
Pin1
e1
K2
Pin 1 Dot
By Marking
K2
Top View
Bottom View
A
C
A1
Side View
MILLIMETERS
INCHES
DIM
Min
Nom
Max
Min
Nom
Max
A
0.50
0.55
0.65
0.020
0.022
0.026
A1
0
-
0.05
0
-
0.002
b
0.20
0.25
0.30
0.008
0.010
0.012
C
0.10
0.15
0.20
0.006
0.008
0.010
D
1.55
1.60
1.65
0.0061
0.063
0.065
D1
0.95
1.00
1.05
0.037
0.039
0.041
E
1.55
1.60
1.65
0.061
0.063
0.065
E1
0.55
0.60
0.65
0.022
0.024
0.026
e
0.50 BSC
e1
0.020 BSC
1.00 BSC
0.039 BSC
K
0.15
-
-
0.006
K2
0.20
-
-
0.008
L
0.20
0.25
0.30
0.008
-
-
0.010
0.012
ECN: S-61919-Rev. A, 02-Oct-06
DWG: 5955
Document Number: 74416
02-Oct-06
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Revision: 02-Oct-12
1
Document Number: 91000