AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
具有浪涌保护功能的过压保护负载开关
特性
概要
浪涌保护
IEC 61000-4-5: >100V
集成 Rdson 仅 28m(typ.)的 nFET 开关
4.5A 连续电流能力
过压保护（OVP）默认阈值
AW32801: 5.95V
AW32805: 6.8V
AW32809: 9.98V
AW32812: 14V
过压保护阈值可调范围 4～20V
IN 端系统级 ESD 保护
AW328xx 系列是具有防浪涌功能的 OVP 芯
片，芯片内部在 IN 端并联了钳位电路，能够抑制
高达 100V 的浪涌电压。
AW328xx 内部集成了 Rdson 仅 28m（typ.）
的 nFET 负载开关。当 IN 端电压超过 OV 阈值，
直通功率管迅速关断，防止 OUT 端所连接的器件
被过压损坏。IN 端直流耐压达到 29V。
AW328xx 系列过压保护阈值默认为 5.95V
（ AW32801 ）、 6.8V （ AW32805 ）、 9.98V
（AW32809）、14V（AW32812），也可通过在
IEC 61000-4-2 接触放电：±8kV
IEC 61000-4-2 空气放电：±15kV
OVLO 引脚外接分压电阻调节，可调范围 4～20V.
AW328xx 具有漏端开路输出信号ACOK，当
输入最大直流耐压 29V
过压关断响应时间仅 125ns(typ.)
VIN_UVLO < VIN < VIN_OVLO 且 NMOS 功率管开启后，
过温保护（OTP）
ACOK会被拉低，指示芯片正常工作，否则ACOK输
欠压关断（UVLO）
出为高阻态。
纤小的 1.34mm x 1.78mm WLCSP-12 封装
AW328xx 内置过温保护，防止芯片过热烧毁。
AW328xx 采用纤小的 1.34mm x 1.78mm
应用
WLCSP-12 封装，符合 RoHS 规范，占板面积小。
智能手机
平板电脑
5～20V 充电接口
典型应用图
USB
Port
CIN
0.1µF
50V
Charger
OUT
IN
R1
R2
AW32805
OVLO
AW32809
AW32812
AW32801
EN
VIO
COUT
1µF
35V
Battery
PMIC
10kΩ
ACOK
Controller
GND
电阻 R1 和 R2 用于调整 OVP 阈值，使用默认 OVP 阈值时 OVLO 接地。
手册中提到的所有商标所有权归其各自的拥有者所有
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1
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
Over-Voltage Protection Load Switch with Surge Protection
FEATURES
GENERAL DESCRIPTION
Surge protection
IEC 61000-4-5: > 100V
Integrated low Rdson nFET switch: typical 28m
4.5A continuous current capability
Default Over-Voltage Protection (OVP) threshold
AW32801: 5.95V
AW32805: 6.8V
AW32809: 9.98V
AW32812: 14V
OVP threshold adjustable range: 4V to 20V
Input system ESD protection
IEC 61000-4-2 Contact discharge: ±8kV
IEC 61000-4-2 Air gap discharge: ±15kV
Input maximum voltage rating: 29VDC
Fast turn-off response: typical 125ns
Over-Temperature Protection (OTP)
Under-Voltage Lockout (UVLO)
1.34mm × 1.78mm WLCSP-12 package
The AW328xx family OVP load switch features
surge protection, an internal clamp circuit protects
the device from surge voltages up to 100V.
The AW328xx features an ultra-low 28m (typ.)
Rdson nFET load switch. When input voltage
exceeds the OVP threshold, the switch is turned off
very fast to prevent damage to the protected
downstream devices. The IN pin is capable of
withstanding fault voltages up to 29VDC.
The default OVP threshold is 5.95V (AW32801),
6.8V (AW32805), 9.98V (AW32809) and 14V
(AW32812), the OVP threshold can be adjusted
from 4V to 20V through external OVLO pin.
The device features an open-drain output ACOK,
when VIN_UVLO < VIN < VIN_OVLO and the switch is
on, ACOK will be driven low to indicate a good
power input, otherwise it is high impedance.
APPLICATIONS
This device features over-temperature protection
that prevents itself from thermal damaging.
The AW328xx is available in a RoHS compliant
12-bump 1.34mm × 1.78mm WLCSP.
Smartphones
Tablets
5V to 20V Charging Ports
TYPICAL APPLICATION CIRCUIT
USB
Port
CIN
0.1µF
50V
Charger
OUT
IN
R1
R2
AW32805
OVLO
AW32809
AW32812
AW32801
EN
VIO
COUT
1µF
35V
Battery
PMIC
10kΩ
ACOK
Controller
GND
R1 and R2 are used for OVP threshold adjustment, to use default OVP threshold, connect OVLO to ground.
All the trademarks mentioned in the document are the property of their owners.
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2
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
DEVICE COMPARISON TABLE
VIN_OVLO (V)
Condition
Min.
Typ.
Max.
VIN_OVLO
hysteresis (mV)
AW32805
VIN rising
6.66
6.80
6.94
150
AW32809
VIN rising
9.78
9.98
10.18
210
AW32812
VIN rising
13.7
14.0
14.3
300
AW32801
VIN rising
5.83
5.95
6.07
100
Device
PIN CONFIGURATION AND TOP MARK
Marking
Pin Configuration (TOP VIEW)
A
1
2
3
4
EN
OUT
OUT
GND
A
GND
B
GND
C
B
ACOK
OUT
IN
C
OVLO
IN
IN
1
2
3
4
28XX
YYYY
28XX – AW32801/AW32805/AW32809/AW32812
YYYY – Production tracking code
PIN DEFINITION
Pin
Name
A1
Type
Description
Input
Enable pin, active low
B1
ACOK
Output
C1
OVLO
Input
C2, C3, B3
IN
Supply
Switch input and device power supply
A2, A3, B2
OUT
Output
Switch output
A4, B4, C4
GND
Supply
Device ground
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Power good flag, active-low, open-drain
OVP threshold adjustment pin
3
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
FUNCTIONAL BLOCK DIAGRAM
OUT
IN
Clamp
Detect
Gate Driver &
Charge pump
OVLO
VIN Divider
Selection
OV comp
Logic Control
ACOK
UV&OT comp
Oscillator
Bandgap
& Ibias
EN
GND
ORDERING INFORMATION
Part Number
Temperature
Package
Marking
Delivery Form
AW32801CSR
-40°C – 85°C
1.340mm × 1.780mm × 0.575mm
WLCSP-12
2801
Tape and Reel
3000pcs/Reel
AW32805CSR
-40°C – 85°C
1.340mm × 1.780mm × 0.575mm
WLCSP-12
2805
Tape and Reel
3000pcs/Reel
AW32809CSR
-40°C – 85°C
1.340mm × 1.780mm × 0.575mm
WLCSP-12
2809
Tape and Reel
3000pcs/Reel
AW32812CSR
-40°C – 85°C
1.340mm × 1.780mm × 0.575mm
WLCSP-12
2812
Tape and Reel
3000pcs/Reel
AW328xx
Shipping
R: Tape & Reel
Package Type
CS: CSP
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4
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
ABSOLUTE MAXIMUM RATINGS
Symbol
Min.
Max.
Unit
Input voltage
0.3
29
V
VOUT
Output voltage
-0.3
VIN + 0.3
V
VOVLO
OVLO voltage
-0.3
29
V
ACOK voltage
-0.3
6
V
voltage
-0.3
6
V
4.5
A
VIN
ACOK
Parameter
(NOTE 1)
Condition
IIN
Switch current
TA
Ambient temperature
-40
85
°C
TJ
Junction temperature
-40
150
°C
TSTG
Storage temperature
-55
150
°C
TLEAD
Soldering temperature
At leads, 10 seconds
260
°C
Thermal
resistance
from
(NOTE 2)
junction to ambient
In free air
85
°C/W
Input surge protection
IEC61000-4-5 test with 2
equivalent series resistance
JA
Surge
Continuous current
100
V
NOTE1: Conditions out of those ranges listed in “absolute maximum ratings” may cause permanent damages to the device.
In spite of the limits above, functional operation conditions of the device should within the ranges listed in “recommended
operating conditions”. Exposure to absolute-maximum-rated conditions for prolonged periods may affect device reliability.
NOTE2: Thermal resistance from junction to ambient is highly dependent on PCB layout.
ESD RATINGS
Symbol
VESD
Parameter
Condition
Value
Unit
IEC61000-4-2 system ESD on
IN pin
Contact discharge
±8
kV
±15
kV
±4
kV
Charged Device Model
Air gap discharge
All pins, per MIL-STD-883J Method
3015.9
All pins, per JEDEC EIA/JESD22-C101F
±1.5
kV
Machine Model
All pins, per JEDEC EIA/JESD22-A115
±400
V
Human Body Model
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5
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
ELECTRICAL CHARACTERISTICS
TA = -40°C to 85°C unless otherwise noted. Typical values are guaranteed for VIN = 5V, CIN = 0.1F, IIN≤
4.5A and TA = 25℃.
Symbol
Description
Test Conditions
VIN_CLAMP
Input clamp voltage
IIN = 10mA
VIN
Input voltage range
Rdson
Min.
Typ.
Max.
30.3
2.5
Units
V
20
V
Switch on resistance
VIN = 5V, IOUT = 1A, TA = 25°C
28
37
m
IQ
Input quiescent current
VIN = 5V, IOUT = 0A
65
100
A
IIN_OVLO
Input current at
over-voltage condition
VOVLO = 3V, VIN = 5V, VOUT =
0V
69
110
A
OVLO set threshold
2.5V < VIN < 20V
1.16
1.20
1.24
V
VOVLO_RNG
OVP threshold adjustable
range
2.5V < VIN < 20V
4
20
V
VOVLO_SEL
External OVLO select
threshold
VIN rising
IOVLO
OVLO pin leakage current
VOVLO = VOVLO_TH
COUT
Output load capacitance
VOVLO_TH
0.3
Hysteresis
0.42
0.50
0.1
-0.1
V
0.1
A
100
F
Protection
AW32805
AW32809
VIN_OVLO
Default OVP trip level
AW32812
AW32801
VIN_UVLO
UVLO trip level
VIN rising
6.66
6.80
VIN falling
6.51
6.65
VIN rising
9.78
9.98
VIN falling
9.57
9.77
VIN rising
13.7
14.0
VIN falling
13.4
14.7
VIN rising
5.83
5.95
VIN falling
5.73
5.85
6.94
10.18
14.3
V
6.07
VIN rising
2.25
2.4
VIN falling
2.10
2.2
V
TSDN
Shutdown temperature
130
°C
TSDN_HYS
Shutdown temperature
hysteresis
20
°C
Digital Logical Interface
VOL
AK ACOK
ACOK output low voltage
ISINK = 1mA
ACOK leakage current
VIO = 5V, ACOK de-asserted
VIH
input high voltage
VIL
input low voltage
AK
leakage current
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-0.5
0.4
V
0.5
A
1.2
= 5V
6
-1
V
0.5
V
10
A
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
ELECTRICAL CHARACTERISTICS (CONTINUED)
TA = -40°C to 85°C unless otherwise noted. Typical values are guaranteed for VIN = 5V, CIN = 0.1F, IIN≤
4.5A and TA = 25℃.
Symbol
Description
Test Conditions
Min.
Typ.
Max.
Units
Timing Characteristics (Figure 1)
tDEB
Debounce time
From VIN > VIN_UVLO to 10%
VOUT,
low
15
ms
tSTAT
Start-up time
From VIN > VIN_UVLO to ACOK
low,
low
30
ms
tON
Switch turn-on time
RL = 100, CL = 22F, VOUT
from 10% VIN to 90% VIN
1
ms
tOFF
Switch turn-off time
RL = 100CL = 0F, VIN >
VIN_OVLO to VOUT stop rising
125
ns
TIMING DIAGRAM
OVP trip level
VIN
tDEB
tDEB
VOUT
tON
tON
tOFF
VEN
VACOK
tSTART
tSTART
Figure 1 . Timing diagram
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7
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
TYPICAL CHARACTERISTICS
VIN = 5V, VEN = 0V, VOVLO = 0V, CIN = 0.1F, COUT = 1F, and TA = 25℃ unless otherwise specified.
Normalized Rdson vs. Output Current
Normalized Rdson vs. Temp. (IOUT = 1A)
3.0
2.0
Normalized to TA = 25°
C
Normalized Rdson
Normalized Rdson
2.5
Normalized to IOUT = 1A
2.0
1.5
1.0
1.5
1.0
0.5
0.5
0.0
0.0
-40
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
-15
Output Current (A)
60
85
Input Supply Current vs. Supply Voltage
300
Input Supply Current (A)
3.0
2.5
Normalized Rdson
35
Temperature (°C)
Normalized Rdson vs. Input Voltage (IOUT = 1A)
Normalized to VIN = 5V
2.0
1.5
1.0
0.5
0.0
–40°
C
250
25°
C
200
85°
C
150
100
50
0
0
2
4
6
8 10 12 14 16 18 20
0
5
10
15
20
25
30
Input Voltage (V)
Input Voltage (V)
Normalized Internal OVP Threshold vs. Temp.
Normalized External OVLO Set OVP Threshold vs. Temp.
1.10
Normalized Threshold Voltage
Normalized Threshold Voltage
10
Normalized to TA = 25°
C
1.05
1.00
0.95
0.90
1.10
Normalized to TA = 25°
C
1.05
1.00
0.95
0.90
-40
-15
10
35
60
85
-40
Temperature (°C)
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-15
10
35
60
85
Temperature (°C)
8
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
TYPICAL CHARACTERISTICS (CONTINUED)
VIN = 5V, VEN = 0V, VOVLO = 0V, CIN = 0.1F, COUT = 1F, and TA = 25℃ unless otherwise specified.
Normalized Debounce Time vs. Temp.
Over-Voltage Response (AW32805)
8V
Normalized Debounce Time
2.00
VIN
5V / div
5V
Normalized to TA = 25°
C
1.50
VOUT
5V / div
1.00
ACOK
2V / div
0.50
IOUT
100mA / div
0.00
-40
-15
10
35
60
85
10µs / div
Temperature (°C)
Power-up (COUT = 1F, 100mA load)
Power-up (COUT = 100F, 100mA load)
VIN
5V / div
VIN
5V / div
VOUT
5V / div
VOUT
5V / div
ACOK
2V / div
ACOK
2V / div
IOUT
100mA / div
IOUT
500mA / div
5ms / div
5ms / div
108V Surge Without Device
108V Surge With Device (AW32805)
VIN
10V / div
VOUT
10V / div
IIN
20A / div
20V / div
10µs / div
20µs / div
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Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
FUNCTIONAL DESCRIPTION
Device Operation
If the AW328xx is enabled and the input voltage is between UVLO and OVP threshold, the internal charge
pump begins to work after debounce time, the gate of the nFET switch will be slowly charged high till the switch
is fully on. ACOK will be driven low about 30ms after VIN valid, indicating the switch is on with a good power
input. If the input voltage exceeds the OVP trip level, the switch will be turned off in about 125ns. If
is
pulled high, or input voltage falls below UVLO threshold, or over-temperature happens, the switch will also be
turned off.
Surge Protection
The AW328xx integrates a clamp circuit to suppress input surge voltage. For surge voltages between VIN_OVLO
and VIN_CLAMP, the switch will be turned off but the clamp circuit will not work. For surge voltages greater than
VIN_CLAMP, the internal clamp circuit will detect surge voltage level and discharge the surge energy to ground.
The device can suppress surge voltages up to 100V.
Over-Voltage Protection
If the input voltage exceeds the OVP rising trip level, the switch will be turned off in about 125ns. The switch will
remain off until VIN falls below the OVP falling trip level.
OVP Threshold Adjustment
If OVLO pin is not grounded, and by connecting external resistor divider to OVLO pin as shown in the typical
application circuit, between IN and GND, the OVP threshold can be adjusted as following:
O
O
O
O
The adjustment range is 4V to 20V. When the OVLO pin voltage VOVLO exceeds VOVLO_SEL(0.42V typical), VOVLO
is compared with the reference voltage VOVLO_TH (1.2V typical) to judge whether input supply is over-voltage.
For example, if we select R1 = 51k and R2 = 12.4k, then the new OVP threshold calculated from the above
formula is 6.14V.
Output
The device features an open-drain output ACOK, it should be connected to the system I/O rail through a
pull-up resistor. If the device is enabled and VIN_UVLO < VIN < VIN_OVLO, ACOK will be driven low indicating the
switch is on with a good power input. If OVP, UVLO, or OT occurs, or
is pulled high, the switch will be
turned off and ACOK will be pulled high.
USB On-The-Go (OTG) Operation
If VIN = 0V and OUT is supplied by OTG voltage, the body diode of the load switch conducts current from OUT
to IN and the voltage drop from OUT to IN is approximately 0.7V. When VIN > VIN_UVLO, internal charge pump
begins to open the load switch after debounce time. After switch is fully on, current is supplied through switch
channel and the voltage drop from OUT to IN is minimum.
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Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
TAPE AND REEL INFORMATION
CARRIER TAPE
NOTE:
1. Unit: mm;
5
11
2. Surface resistivity: 10 to 10 ohms/sq;
3. Restriction criterion of hazardous substance for packing material follow GP-M001.
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11
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
REEL
pin1
Unit: mm.
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12
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
PACKAGE DESCRIPTION
BOTTOM VIEW
TOP VIEW
e2
E
e3
Ball
A1
C
B
12X Ø0.268±0.020
e1
D
A
1
Symbol
A
A1
A2
SIDE VIEW
2
3
NOM
0.575
0.195
A
A2
A3
A1
A3
D
E
e1
0.340
0.040
1.340
1.780
0
e2
e3
0.200
0.400
4
Tolerance
±0.055
±0.020
±0.025
±0.010
±0.025
±0.025
NA
NA
NA
Unit: mm
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Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AW32801/AW32805/
AW32809/AW32812
Dec. 2016 V1.0
DISCLAIMER
Information in this document is believed to be accurate and reliable. However, Shanghai AWINIC Technology
Co., Ltd (AWINIC Technology) does not give any representations or warranties, expressed or implied, as to the
accuracy or completeness of such information and shall have no liability for the consequences of use of such
information.
AWINIC Technology reserves the right to make changes to information published in this document, including
without limitation specifications and product descriptions, at any time and without notice. Customers shall obtain
the latest relevant information before placing orders and shall verify that such information is current and
complete. This document supersedes and replaces all information supplied prior to the publication hereof.
AWINIC Technology products are not designed, authorized or warranted to be suitable for use in medical,
military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an AWINIC
Technology product can reasonably be expected to result in personal injury, death or severe property or
environmental damage. AWINIC Technology accepts no liability for inclusion and/or use of AWINIC Technology
products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own
risk.
Applications that are described herein for any of these products are for illustrative purposes only. AWINIC
Technology makes no representation or warranty that such applications will be suitable for the specified use
without further testing or modification.
All products are sold subject to the general terms and conditions of commercial sale supplied at the time of order
acknowledgement.
Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance
or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or
intellectual property rights.
Reproduction of AWINIC information in AWINIC data books or data sheets is permissible only if reproduction is
without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. AWINIC
is not responsible or liable for such altered documentation. Information of third parties may be subject to
additional restrictions.
Resale of AWINIC components or services with statements different from or beyond the parameters stated by
AWINIC for that component or service voids all express and any implied warranties for the associated AWINIC
component or service and is an unfair and deceptive business practice. AWINIC is not responsible or liable for
any such statements.
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