AP22652 SWITCHES Datasheet

AP22652 Datasheet PDF, Equivalent


Part Number

AP22652

Description

PRECISION ADJUSTABLE CURRENT-LIMITED POWER SWITCHES

Manufacture

Diodes

Total Page 16 Pages
PDF Download
Download AP22652 Datasheet PDF


AP22652
AP22652/AP22653
PRECISION ADJUSTABLE CURRENT-LIMITED POWER SWITCHES
Description
The AP22652 and AP22653 are single channel precision adjustable
current-limited switches optimized for applications that require
precision current limiting, or to provide up to 2.1A of continuous load
current during heavy loads/short circuits. These devices offer a
programmable current-limit threshold between 125mA and 2665mA
(typ) via an external resistor. Current limit accuracy ±10% can be
achieved at high current-limit settings. The rise and fall times are
controlled to minimize current surges during turn on/off.
The devices have fast short-circuit response time for improved overall
system robustness. They provide a complete protection solution for
applications subject to heavy capacitive loads and the prospect of
short circuit, offering reverse current blocking and limiting, over-
current, over-temperature and short-circuit protection, as well as
controlled rise time and under-voltage lockout functionality. A
6ms deglitch capability on the open-drain Flag output prevents false
over-current reporting and does not require any external components.
The AP22652 and AP22653 limit the output current to a safe level
when the output current exceeds current-limit threshold.
Pin Assignments
EN/EN
W-DFN2020-6 (Type A1)
(Top View)
IN
GND
1
2
6 OUT
5 ILIM
EN/EN
34
SOT26
FAULT
All devices are available in SOT26 and W-DFN2020-6 (Type A1)
packages.
Applications
Set-Top Boxes
LCD TVs & Monitors
Residential Gateways
Laptops, Desktops, Servers, e-Readers, Printers, Docking
Stations, HUBs
Features
Up to 2.1A Maximum Load Current
Accurate Adjustable Current Limit, 125mA to 2665mA
±7% Accurate Adjustable Current Limit, 1.735A with RLIM = 15kΩ
Constant-Current (AP22652, AP22653) During Over-Current
Fast Short-Circuit Response Time: 5µs (Typ.)
Reverse Current Blocking During Shutdown and Reverse Current
Limiting During Enable
Operating Range: 3.0V to 5.5V
Built-In Soft-Start with 0.5ms Typical Rise Time
Over-Current, Output Over-Voltage and Thermal Protection
Fault Report (FAULT) with Blanking Time
ESD Protection: 2kV HBM, 500V CDM
Active Low (AP22652) or Active High (AP22653) Enable
Ambient Temperature Range: -40ºC to +85°C
SOT26 and W-DFN2020-6 (Type A1) Packages: Available in
“Green” Molding Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
14kV ESD Protection per IEC61000-4-2 (With External Capacitance)
UL Recognized, File Number E322375, Vol. 1
IEC60950-1 CB Scheme Certified
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP22652/AP22653
Document number: DS41186 Rev. 1 - 2
1 of 16
www.diodes.com
August 2019
© Diodes Incorporated

AP22652
Typical Applications Circuit (Note 4)
AP22652/AP22653
EN/EN
Note: 4. 120µF Output Capacitance is a Requirement of USB.
Available Options
Part Number
AP22652
AP22653
AP22652
AP22653
Channel
1
1
1
1
Enable Pin
(EN/EN)
Active Low
Active High
Active Low
Active High
Recommended Maximum
Continuous Load Current (A)
Current-Limit
Protection
2.1 Constant-Current
Package
W-DFN2020-6 (Type A1)
W-DFN2020-6 (Type A1)
SOT26
SOT26
Pin Descriptions
Pin Pin Number
I/O
Name AP22652W6-7 AP22653W6-7 AP22652FDC-7 AP22653FDC-7
Function
IN 1
1
6
Input, connect a 0.1µF or greater ceramic capacitor from
6 I IN to GND as close to IC as possible.
GND
2
2
5
5 Ground, connect to external exposed pad.
EN 3
4
I Enable input, logic low turns on power switch.
EN
3
4 I Enable input, logic high turns on power switch.
FAULT
4
4
3
Active-low open-drain output, asserted during over-
3 O current, over-temperature, or reverse-voltage conditions.
ILIM
OUT
5
6
5
6
2
1
Use external resistor to set current-limit threshold;
2 O recommended 10kΩ RLIM 210kΩ
Voltage Output Pin, connect a 0.1μF bypass capacitor
1 O and a high-value capacitor to GND, close to IC. (At least
10μF in USB application.)
Exposed
Pad
Internal connection to GND; Connect to GND externally
Pad for improved power dissipation. It should not be used as
Pad electrical ground conduction path.
AP22652/AP22653
Document number: DS41186 Rev. 1 - 2
2 of 16
www.diodes.com
August 2019
© Diodes Incorporated


Features NEW PRODUCT AP22652/AP22653 PRECISION A DJUSTABLE CURRENT-LIMITED POWER SWITCHE S Description The AP22652 and AP22653 are single channel precision adjustable current-limited switches optimized for applications that require precision cu rrent limiting, or to provide up to 2.1 A of continuous load current during hea vy loads/short circuits. These devices offer a programmable current-limit thre shold between 125mA and 2665mA (typ) vi a an external resistor. Current limit a ccuracy ±10% can be achieved at high c urrent-limit settings. The rise and fal l times are controlled to minimize curr ent surges during turn on/off. The devi ces have fast short-circuit response ti me for improved overall system robustne ss. They provide a complete protection solution for applications subject to he avy capacitive loads and the prospect o f short circuit, offering reverse curre nt blocking and limiting, overcurrent, over-temperature and short-circuit prot ection, as well as controlled rise time and under-voltage lockou.
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