Protection Switch. AOZ1327DI Datasheet

AOZ1327DI Switch. Datasheet pdf. Equivalent

AOZ1327DI Datasheet
Recommendation AOZ1327DI Datasheet
Part AOZ1327DI
Description Protection Switch
Feature AOZ1327DI; AOZ1327DI ECPower™ 20V 20mΩ Protection Switch with True Reverse Current Blocking General Descriptio.
Manufacture Alpha & Omega Semiconductors
Datasheet
Download AOZ1327DI Datasheet




Alpha & Omega Semiconductors AOZ1327DI
AOZ1327DI
ECPower™ 20V 20mΩ Protection Switch
with True Reverse Current Blocking
General Description
The AOZ1327DI power switch is intended for applications
that require circuit protections. The input operating voltage
ranges between 3.4V and 22V, making it ideal for USB
Type-C power delivery applications. The VIN terminal is
rated as 28V Absolute Maximum. The AOZ1327DI provides
under-voltage lockout, over-voltage and over-temperature
protection function. The over-voltage protection threshold is
selectable through the POVP pin. The internal soft-start
circuitry controls inrush current due to highly capacitive
loads. The slew rate can be adjusted using an external
capacitor.
The AOZ1327DI has True Reverse-Current Blocking
(TRCB) protection to avoid undesired reverse-current from
VOUT to VIN at all time.
The AOZ1327DI is available in a thermally enhanced 3mm
x 3mm DFN-12 package which can operate over -40°C to
+85°C temperature range.
Features
20mtypical ON resistance
8A continuous current
20A peak current for 10ms @ 2% duty cycle
3.4V to 22V operating input voltage
VIN, VOUT are rated 28V Abs max.
True reverse current blocking
Selectable over-voltage protection
Programmable soft-start
VIN Under-voltage lockout
VIN and VOUT over-voltage lockout
Thermal shutdown protection
±4kV HBM ESD rating
IEC 61000-4-2: ±8kV on VIN
IEC 61000-4-5: 40V on VOUT, No Capacitor
3mm x 3mm DFN-12L package
Applications
Thunderbolt/USB Type-C PD power
switch
Portable devices
Notebook/desktop computers
Monitors
Docking station/dongles
Typical Application
VBUS
USB 
Connector 
GND
Isolated
Thermal
Pad
TVS
Diode
EXP
VIN VOUT
CIN
For 24V OVP POVP
SS
AOZ1327DI
PD 
Controller
ENB
GND
FLTB
COU T
Charger
CSS
5V
RFLTB
Rev. 1.2 April 2020
www.aosmd.com
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Alpha & Omega Semiconductors AOZ1327DI
AOZ1327DI
Ordering Information
Part Number
AOZ1327DI-01
AOZ1327DI-02
Fault Recovery
Auto-Restart
Latch-Off
Temperature Range
-40°C to +85°C
-40°C to +85°C
Package
DFN3x3-12L
DFN3x3-12L
Environmental
RoHS
RoHS
All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards.
Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information.
Pin Configuration
VOUT
VOUT
POVP
FLTB
ENB
GND
Exposed
Pad
VIN
`
VIN
NC
NC
NC
SS
DFN3x3-12L
(Top Transparent View)
Pin Description
Pin Number
1, 2
3
4
5
6
7
8, 9, 10
11, 12
Pin Name
VOUT
POVP
FLTB
ENB
GND
SS
NC
VIN
EXP
EXP
Pin Function
Output pins. Connect to internal load.
Over voltage protection pin. Connect POVP to GND for 24V or leave open for 5.8V OVP.
Fault Indicator, Open-drain output. Active Low when fault condition occurs.
Enable logic input. Active-low.
Ground.
Soft-start pin. Connect a capacitor CSS from SS to GND to set the soft-start time.
No connect. Leave these pins float.
Connect to adapter or power input.
Exposed Thermal Pad. It is the common drain node of the internal back-back sink switches
and it must be electrically isolated. Solder to a metal surface directly underneath EXP and
connect to floating Cu thermal pads on multiple PCB layers through VIAs. For best thermal
performance make the floating Cu pads as large as possible and connect to EXP with multi-
ple VIAs
Rev. 1.2 April 2020
www.aosmd.com
Page 2 of 16



Alpha & Omega Semiconductors AOZ1327DI
AOZ1327DI
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the
device.
Parameter
VIN, VOUT to GND
ENB, SS, FLTB, POVP to GND
Junction Temperature (TJ)
Storage Temperature (TS)
ESD Rating HBM All Pins
IEC 61000-4-2: VIN
Rating
-0.3V to +28V
-0.3V to +6V
+150°C
-65°C to +150°C
±4kV
±8kV
Recommend Operating Ratings
The device is not guaranteed to operate beyond the Maximum
Operating Ratings.
Parameter
VIN, VOUT to GND
ENB, FLTB to GND
POVP, SS to GND
Switch Current (ISW)
Peak Switch Current (ISW_PK)
10ms @ 2% Duty Cycle
Ambient Temperature (TA)
Package Thermal Resistance
3x3 DFN-12 (JA)
Rating
3.4V to 22V
0 to 5.5V
0 to 3V
0A to 8A
20A
-40°C to +85°C
36°C/W
Electrical Characteristics
TA = 25°C, VIN = 20V, ENB = 0V, POVP = 0V, unless otherwise specified.
Symbol
Parameter
Conditions
VVIN
VUVLO
VUVLO_HYS
VOVLO
VOVLO_HYS
tDELAY_OVP
IVIN_ON
IVIN_OFF
IVOUT_OFF
RON_20V
RON_5V
VENB_H
VENB_L
IENB_BIAS
VFLTB_LO
VTRCB
tTRCB
tD_ON
tON
tREC
TSD
TSD_HYS
Input Supply Voltage
Under-voltage Lockout Threshold
Under-voltage Lockout Hysteresis
Over-voltage Lockout Threshold
Over-voltage Lockout Hysteresis
Switch Turn-off Delay upon
Overvoltage
Input Quiescent Current
Input Shutdown Current
Output Leakage Current
Switch ON-Resistance
ENB Pin Input High Threshold
ENB Pin Input Low Threshold
ENB Pin Input Pull-down Current
FLTB Pin Pull-down Voltage
TRCB Threshold
TRCB Delay Time
Turn-On Delay Time
ENB to VOUT (10%)
Turn-On Rise Time
Auto restart interval
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
VIN rising
POVP = GND, VIN rising
POVP OpenVIN rising
VVIN-VOVLO = 500mV
IVOUT = 0
IVOUT = 0, ENB = 5V
VOUT = 20V, VIN = 0V, ENB = 5V
IVOUT = 1A
VIN = 5V, IVOUT = 1A
ENB rising
ENB falling
ENB = 1.8 V
FLTB sinking 3mA
VOUT-VIN
VOUT-VIN = VTRCB +500mV
From ENB falling edge to VOUT
reaching 10% of VIN. COUT = 68µF,
CSS = 5.6nF
VOUT from 10% to 90%
COUT = 68uF, CSS = 5.6nF
AOZ1327DI-01
Min.
3.4
3.0
23.0
5.5
0.6
Typ.
300
24.0
5.8
350
1
550
18
18
20
21
26
500
Max.
22
3.35
25.0
6
Units
V
V
mV
V
mV
µs
µA
35 µA
35 µA
m
m
1.4 V
V
10 µA
0.3 V
mV
ns
20 ms
1.9 ms
64 ms
140 C
30 C
Rev. 1.2 April 2020
www.aosmd.com
Page 3 of 16







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