AP2311 Datasheet PDF - Diodes Incorporated

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AP2311
Diodes Incorporated

Part Number AP2311
Description 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH
Page 18 Pages


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AP2301/AP2311www.DataSheet4U.com
2.0A SINGLE CHANNEL CURRENT-LIMITED POWER
SWITCH
Description
Pin Assignments
The AP2301 and AP2311 are single channel current-limited
integrated high-side power switches optimized for Universal
Serial Bus (USB) and other hot-swap applications. The family
of devices complies with USB standards and is available with
both polarities of Enable input.
The devices have fast short-circuit response time for
improved overall system robustness, and have integrated
output discharge function to ensure completely controlled
discharging of the output voltage capacitor. They provide a
complete protection solution for applications subject to heavy
capacitive loads and the prospect of short circuit, and offer
reverse current blocking, over-current, over-temperature and
short-circuit protection, as well as controlled rise time and
under-voltage lockout functionality. A 7ms deglitch capability
on the open-drain Flag output prevents false over-current
reporting and does not require any external components.
All devices are available in SO-8, MSOP-8-EP and
DFN3030E-8 packages.
Features
• Single channel current-limited power switch
• Output discharge function
• Fast short-circuit response time: 2µs
• 2.5A accurate current limiting
• Reverse current blocking
• 70mon-resistance
• Input voltage range: 2.7V – 5.5V
• Built-in soft-start with 0.6ms typical rise time
• Over-current and thermal protection
• Fault report (FLG) with blanking time (7ms typ)
• ESD protection: 2KV HBM, 300V MM
• Active low (AP2301) or active high (AP2311) enable
• Ambient temperature range: -40ºC to 85°C
• SO-8, MSOP-8-EP and DFN3030E-8: Available in
“Green” Molding Compound (No Br, Sb)
• Lead Free Finish / RoHS Compliant (Note 1)
• UL Recognized, File Number E322375
• IEC60950-1 CB Scheme Certified
( Top View )
GND 1
8 NC
IN 2
7 OUT
IN 3
6 OUT
EN 4
5 FLG
SO-8
GND
IN
IN
EN
1
2
3
4
( Top View )
MSOP-8-EP
8 NC
7 OUT
6 OUT
5 FLG
( Top View )
GND 1
IN 2
IN 3
EN 4
8 NC
7 OUT
6 OUT
5 FLG
DFN3030E-8
Applications
• LCD TVs & Monitors
• Set-Top-Boxes, Residential Gateways
• Laptops, Desktops, Servers, e-Readers
• Printers, Docking Stations, HUBs
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
AP2301/AP2311
Document number: DS32241 Rev. 1 - 2
1 of 18
www.diodes.com
June 2010
© Diodes Incorporated



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Typical Application Circuit
AP2301/AP2311www.DataSheet4U.com
2.0A SINGLE CHANNEL CURRENT-LIMITED POWER
SWITCH
Enable Active High
Power Supply
2.7V to 5.5V
10k
IN
0.1uF
OUT
FLG
ON
OFF
EN GND
Load
0.1uF
120uF
Available Options
Part Number Channel
AP2301
AP2311
1
1
Enable pin
(EN)
Active Low
Active High
Recommended
maximum continuous
load current (A)
Typical current
limit (A)
2.0A
2.5A
Package
SO-8
MSOP-8-EP
DFN3030E-8
Pin Descriptions
Pin Name
GND
IN
EN
FLG
OUT
NC
Exposed Pad
Pin Number
1
2, 3
4
5
6, 7
8
-
Descriptions
Ground
Voltage input pin; connect a 0.1µF or larger ceramic capacitor from IN to GND
as close as possible. (all IN pins must be tied together externally)
Enable input, active low (AP2301) or active high (AP2311)
Over-temperature and over-current fault reporting with 7ms deglitch; active low
open-drain output. FLG is disabled for 7ms after turn-on.
Voltage output pin (all OUT pins must be tied together externally)
No internal connection; recommend tie to OUT pins
Recommend connecting to the GND externally for improved power dissipation
AP2301/AP2311
Document number: DS32241 Rev. 1 - 2
2 of 18
www.diodes.com
June 2010
© Diodes Incorporated



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Functional Block Diagram
AP2301/AP2311www.DataSheet4U.com
2.0A SINGLE CHANNEL CURRENT-LIMITED POWER
SWITCH
Current
IN Sense
UVLO
Discharge
Control
EN
Driver
Current
Limit
Thermal
Sense
Deglitch
OUT
FLG
GND
Absolute Maximum Ratings
Symbol
Parameter
Ratings
ESD HBM
Human Body Model ESD Protection
2
ESD MM
Machine Model ESD Protection
300
VIN Input Voltage
6.5
VOUT
Output Voltage
VIN + 0.3
VEN , VFLG
Enable Voltage
6.5
Notes:
Iload Maximum Continuous Load Current
Internal Limited
TJmax
Maximum Junction Temperature
150
TST Storage Temperature Range (Note 2)
-65 to 150
2. UL Recognized Rating from -30°C to 70°C (Diodes qualified TST from -65°C to 150°C)
Recommended Operating Conditions
Symbol
VIN
IOUT
TA
Parameter
Input voltage
Output Current
Operating Ambient Temperature
Min Max
2.7 5.5
0 2.0
-40 85
Unit
KV
V
V
V
V
A
°C
°C
Unit
V
A
°C
AP2301/AP2311
Document number: DS32241 Rev. 1 - 2
3 of 18
www.diodes.com
June 2010
© Diodes Incorporated



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AP2301/AP2311www.DataSheet4U.com
2.0A SINGLE CHANNEL CURRENT-LIMITED POWER
SWITCH
Electrical Characteristics (TA = 25oC, VIN = +5.0V, CIN = 0.1μF, CL = 1μF, unless otherwise stated)
Symbol
Parameter
Test Conditions (Note 3)
Min Typ. Max Unit
VUVLO Input UVLO
ΔVUVLO Input UVLO Hysteresis
VIN rising
VIN decreasing
1.6 2.0 2.4
50
V
mV
ISHDN Input Shutdown Current
Disabled, OUT = open
0.1 1
μA
IQ Input Quiescent Current
Enabled, OUT = open
60 100 μA
ILEAK Input Leakage Current
Disabled, OUT grounded
0.1 1
μA
IREV Reverse Leakage Current
RDS(ON) Switch on-resistance
ILIMIT
Over-Load Current Limit
(Note 4)
Disabled, VIN= 0V, VOUT= 5V, IREV at VIN
VIN = 5V, IOUT= 2.0A
TA = 25oC
-40oC TA 85oC
VIN = 3.3V, IOUT= 2.0A
TA = 25oC
-40oC TA 85oC
VIN= 5V, VOUT= 4.5V
-40oCTA 85oC
0.01 1
70 84
105
90 108
135
2.0 2.5 2.85
μA
m
A
ITrig Current limiting trigger threshold Output Current Slew rate (<100A/s)
ISHORT Short-Circuit Current Limit
Enabled into short circuit
2.5 A
2.75 A
TSHORT Short-circuit Response Time VOUT = 0V to IOUT = ILIMIT (OUT shorted to ground)
2
μs
VIL EN Input Logic Low Voltage
VIH EN Input Logic High Voltage
VIN = 2.7V to 5.5V
VIN = 2.7V to 5.5V
0.8 V
2V
ILEAK-EN EN Input leakage
VIN = 5V, VEN = 0V and 5.5V
0.01 1
μA
ILEAK-O
TD(ON)
TR
TD(OFF)
TF
RFLG
Output leakage current
Output turn-on delay time
Output turn-on rise time
Output turn-off delay time
Output turn-off fall time
FLG output FET on-resistance
Disabled, VOUT= 0V
CL= 1μF, Rload= 5
CL= 1μF, Rload= 5
CL= 1μF, Rload= 5
CL= 1μF, Rload= 5
IFLG = 10mA
0.5 1
0.1
0.6 1.5
0.1
0.05 0.1
20 40
μA
ms
ms
ms
ms
IFOH FLG Off Current
VFLG= 5V
0.01 1
μA
TBlank FLG blanking time
Assertion or deassertion due to overcurrent and
over-temperature condition
4
7 15 ms
TDIS Discharge time
CL= 1μF, VIN = 5V, disabled to VOUT < 0.5V
RDIS Discharge resistance (Note 4) VIN = 5V, disabled, IOUT= 1mA
0.6 ms
100
TSHDN Thermal Shutdown Threshold Enabled
140 °C
THYS Thermal Shutdown Hysteresis
20 °C
SO-8 (Note 5)
θJA
Thermal
Ambient
Resistance
Junction-to-
MSOP-8-EP
(Note
6)
DFN3030E-8 (Note 6)
96 °C/W
92 °C/W
84 °C/W
Notes:
3. Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account
separately.
4. The discharge function is active when the device is disabled (when enable is de-asserted or during power-up power-down when
VIN < VUVLO). The discharge function offers a resistive discharge path for the external storage capacitor for limited time.
5. Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad layout.
6. Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to
bottom layer ground plane.
AP2301/AP2311
Document number: DS32241 Rev. 1 - 2
4 of 18
www.diodes.com
June 2010
© Diodes Incorporated



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Diodes Incorporated
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