AP1201AHYA [DIODES]
Power Management Circuit,;
| 型号： | AP1201AHYA |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Power Management Circuit, |
| 文件： | 总9页 (文件大小：183K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AP1201
Single-Channel Power Distribution Switch
ꢀFeatures
ꢀGeneral Description
The AP1201 series are integrated high-side power
switch with enable, flag functions and adjustable
current-limit 0.7A to 1.25A, optimized for
self-powered and bus-powered Universal Serial
Bus (USB) applications. The AP1201 series support
the following USB requirements: each switch
channel supplies up to 700mA as required by USB
downstream devices; the switch’s low on-resistance
meets USB voltage drop requirements; fault current
is limited to typically 900mA~1.25A; and a flag
output is available to indicate fault conditions to the
local USB controller. Soft start eliminates the
momentary voltage drop on the upstream port that
may occur when the switch is enabled in
bus-powered applications.
- 100mΩ typical on-resistance
- 2.7V to 5.5V input voltage
- Adjustable current-limit 0.7A to 1.25A
(AP1201A/C)
- Fixed current-limit (1.25A) for AP1201B
- Fault flag with internal delay circuit
- 1μA typical off-state supply current
- 65μA typical on-state supply current
- Output can be forced higher than input (off-state)
- Thermal shutdown
- 2.4V typical under voltage lockout (UVLO)
- Slow turn-on (soft-start) and fast turn-off
- Enable Active-High or active-Low
- SOT23-5L, SOT23-6L and SOT89-5L packages
Additional features include thermal shutdown to
prevent catastrophic switch failure from high-current
loads, under voltage lockout (UVLO) to ensure that
the device remains off unless there is a valid input
voltage present, and 3.3V and 5V logic compatible
enable inputs.
ꢀApplications
-
-
-
USB Power Switch
Battery-charger circuits
Hot plug-in power supplies
ꢀ Pin Assignments
ꢀPin Descriptions
IN
IN
OUT
GND
EN
1
5
OUT
GND
1
5
Name
Descriptions
AP1201A
SOT23-5L
AP1201A
AP1201B
SOT23-5L
AP1201B
2
3
2
3
Enable: Logic-compatible Enable input.
(H: active high, L: active low). Do not
float.
Fault Flag: Active-low, open-drain
output. Indicates over current, UVLO,
and thermal shutdown.
EN
4
5
4
5
SET EN
FLG
FLG
GND
IN
OUT IN
GND GND
OUT
GND
EN
IN
1
1
Ground: Supply return.
2
3
2
3
GND
SET
Supply Input: Output MOSFET drain.
Also supplies IC’s internal circuitry.
Connect to positive supply.
4
1
4
EN
FLG
SOT89-5L
SOT89-5L
Switch Output: Output MOSFET
source. Typically connect to switched
side of load.
OUT
6
IN
OUT
SET
AP1201C
SOT23-6L
GND
EN
2
3
5
SET
FLG
Current limit set input. A resistor pull
high to set current-limit value (A, C
type only).
4
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.4 Feb 10, 2004
1/9
AP1201
Single-Channel Power Distribution Switch
ꢀOrdering Information
AP1201 X X X X X
Lead Free
Power Switch
Current & FLG
Enable
Package
Packing
Blank : Normal
A: Adj I ,w/o FLG
B: 1.5A fix,w FLG
C:Adj I,w FLG
L: Active-Low
W5 : SOT23-5
Blank: Tube
L : Lead Free Package
H: Active-High W6 : SOT23-6
A
: Taping
Y
: SOT89-5L
ꢀ Block Diagram
OUT
FLG
Driver
EN
Current
Limit
CS
Charge
Pump
Thermal
Shutdown
UVLO
IN
SET
ꢀ Absolute Maximum Ratings (Note 1)
Symbol
Parameter
Supply Voltage
Fault Flag Voltage
Maximum Continuous Current
Output Voltage
Control Input
Storage Temperature
Lead Temperature
ESD (HBM) Rating, (Note 2)
Rating
Unit
VIN
VFLG
IMAX
VOUT
VEN
TS
TLEAD
VESD
+7
+7
V
V
A
V
V
1.5
+7
–0.3 to +15
-65 to +150
260
o
C
o
C
4
KV
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Feb 10, 2004
2/9
AP1201
Single-Channel Power Distribution Switch
ꢀ Operating Ratings (Note 3)
Symbol
Parameter
Supply Voltage
Ambient Operating Temperature
SOT89-5, SOT23-5, SOT23-6
SOT89-5
Rating
Unit
VIN
TA
PD
+2.7 to +5.5
-40 to +85
V
o
C
Internal Limited
o
Θ
100
300
JC
C/W
o
Θ
SOT23-5, SOT23-6
JC
C/W
o
(Under Operating Conditions) V =+5V;T =25 C; unless noted.
ꢀ Electrical Characteristics
in
A
Symbol
Parameter
Conditions
Min.
Typ.
0.1
65
Max.
1
Unit
µA
µA
V
Switch off, OUT = open
(Note 4)
ICC
Supply Current
Switch on, OUT = open
(Note 4)
110
2.4
low-to-high transition(Note
4)
1.7
VIT
Enable Input Threshold
high-to-low transition(Note
4)
0.8
-1
1.4
V
± 0.01
1
100
30
IEN
CEN
Enable Input Current
Enable Input Capacitance
VEN =0V to 5.5V
1
µA
pF
mΩ
RDS(ON) Switch Resistance
VIN =5V, IOUT =500mA
RL =10Ω
120
TOND
Output Turn-On Delay
µs
Output Turn-On Rise
Time
RL =10Ω
Tr
0.75
ms
RL =10Ω
RL =10Ω
TOFFD
Tf
ILEAK
Output Turnoff Delay
1
0.15
20
µs
µs
µA
A
Output Turnoff Fall Time
Output Leakage Current
Current-Limit RLOAD=1Ω
10
1.8
--
AP1201B
AP1201B
1.0
--
1.25
1.25
Short-circuit Current
Adj Current Limit Typical
Value
A
ILIM
AP1201A/C
0.7
--
1.25
A
o
TJ increasing
TJ decreasing
VIN = 5V, IL = 10mA
VIN = 3.3V, IL = 10mA
140
130
10
Over-temperature
C
TTS
Shutdown Threshold
o
C
Ω
25
Error Flag Output
Resistance
RFO
Ω
ms
µA
V
15
2
40
5
tD
FLG Output Delay Time
1
IFOH
Error Flag Off Current
VFLAG = 5V
0.01
2.5
2.3
1
VIN = increasing
VIN = decreasing
UVLO UVLO Threshold
V
Note 1. Exceeding the absolute maximum rating may damage the device.
Note 2. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Note 3. The device is not guaranteed to function outside its operating rating.
Note 4. Off is VEN≦0.8Vand on is VEN≧2.4V for the AP1201X-H. Off is VEN≧2.4V and on is VEN≦0.8V for the AP1201X-L. The enable
input has approximately 200mV of hysteresis. See control threshold charts.
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Jan 28, 2004
3/9
AP1201
Single-Channel Power Distribution Switch
ꢀTypical Application Circuit
Power Supply
3.3V 5V
AP1201C
Downstream
USB Ports
IN
D+
D-
VBUS
SET
OUT
0.1uF
FLG
EN
0.1uF
33uF
GND
USB
Control
GND
ꢀTest Circuit
VCC=+5V
AP1201
OUT
SET
GND
IN
R1
C1
10K
FLG
EN
0.1uF
ON
OFF
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Feb 10, 2004
4/9
AP1201
Single-Channel Power Distribution Switch
ꢀ Function Description
Thermal Shutdown
Error Flag
When the chip temperature exceeds 140ºC for any
reason, the thermal shutdown function enables and
turns off MOSFET’s switch and signals the error
flag. A hysteresis of 10ºC prevents the MOSFETs
from turning back on until the chip temperature
drops to below 130ºC.
An open-drained output of an N-channel MOSFET,
the FLG output is pulled low to signal the following
fault conditions: input under-voltage, output current
limit, and thermal shutdown.
Current Limit
The current limit is set externally. It protects the
output MOSFET switches from damage due to
undesirable short circuit conditions or excess inrush
current often encountered during hot plug-in. The
low limit of the current limit threshold of the AP1201
allows a minimum current of 0.9A through the
MOSFET switches. A current limit condition will
signal the error flag. A resistor from SET to VIN
sets the current-Limit value.
Supply Filtering
A 0.1µF to 1µF bypass capacitor from IN to GND,
located near the device, is strongly recommended
to control supply transients. Without a bypass
capacitor, an output short may cause sufficient
ringing on the input (from supply lead inductance)
to damage internal control circuitry.
Transient Droop Requirements
USB supports dynamic attachment (hot plug-in) of
peripherals. A current surge is caused by the input
capacitance of downstream device. Ferrite beads
are recommended in series with all power and
ground connector pins. Ferrite beads reduce EMI
and limit the inrush current during hot-attachment
by filtering high-frequency signals.
ILIM(MAX) ~ 1.4X ILIM(TYP)
ILIM(MIN) ~ 0.8X ILIM(TYP)
AP1201 Rset
Current Limit Threshold (A)
RSET (Ω)
Typical value
Short Circuit Transient
(Vout = 5V)
(Vout = 3.3V)
0.69
Bulk capacitance provides the short-term transient
current needed during a hot-attachment event. With
a 33µF, 16V tantalum or 100µF, 10V electrolytic
capacitor mounted close to downstream connector
per port should provide transient drop protection.
10K
20K
0.71
0.92
1.01
1.05
1.10
1.15
1.19
1.22
1.25
0.90
30K
1.00
40K
1.02
60K
1.08
80K
1.11
Printed Circuit Layout
100K
200K
floating
1.16
The power circuitry of USB printed circuit boards
requires a customized layout to maximize thermal
dissipation and to minimize voltage drop and EMI.
1.20
1.23
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Jan 28, 2004
5/9
AP1201
Single-Channel Power Distribution Switch
ꢀ Marking Information
6
5
4
5
1
4
XX : Identification code
(See Appendix)
XX Y M X
XX Y M X
Y
: Year: 0-9
M
: Month: A~L
X
: Blank : normal
2
3
1
2
3
L : Lead Free Package
SOT23-6L
SOT23-5L
1
5
XX
2
3
YM X
4
SOT89-5L
Appendix
Part Number
Package
Identification Code
AP1201AL
AP1201CL
AP1201AH
AP1201CH
AP1201BL
AP1201BH
SOT23-5/SOT89-5
SOT23-6
FL
FL
FH
FH
F1
F2
SOT23-5/SOT89-5
SOT23-6
SOT23-5/SOT89-5
SOT23-5/SOT89-5
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Feb 10, 2004
6/9
AP1201
Single-Channel Power Distribution Switch
ꢀPackage Information
(1) Package Type: SOT23-5L
D
e1
1(4x)
θ
4
5
1
C
0.10
A2
A
5x
E1
E
Seating Plane
A1
2(4x)
θ
2
3
b
e
With
Plating
b1
C
C1
Gauge Plane
0.25 mm
θ
Base
Metal
L
b
L1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
1.05
0.05
1.00
0.25
0.25
0.08
0.08
2.70
2.60
1.50
0.35
Nom.
1.20
0.10
1.10
-
Max.
1.35
0.15
1.20
0.55
0.45
0.20
0.15
3.00
3.00
1.70
0.55
Min.
Nom.
0.047
0.004
0.043
-
Max.
A
A1
A2
b
b1
c
c1
D
E
E1
L
L1
e
e1
θ
θ1
θ2
0.041
0.002
0.039
0.010
0.010
0.003
0.003
0.106
0.102
0.059
0.014
0.053
0.006
0.047
0.022
0.018
0.008
0.006
0.118
0.118
0.067
0.022
0.40
-
0.016
-
0.11
2.85
2.80
1.60
0.45
0.60 Ref.
0.95 Bsc.
1.90 Bsc.
5o
0.004
0.112
0.110
0.063
0.018
0.024 Ref.
0.037 Bsc.
0.075 Bsc.
5o
0o
3o
6o
10o
7o
0o
3o
6o
10o
7o
5o
5o
8o
10o
8o
10o
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Feb 10, 2004
7/9
AP1201
Single-Channel Power Distribution Switch
ꢀ Package Information (Continued)
(2) Package Type: SOT23-6L
A
G
L
L
6
1
5
2
4
E
C
B
3
F
D (Typ.)
J (Ref.)
K (Ref.)
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
2.70
2.60
1.40
0.30
0
Nom.
2.90
2.80
1.60
0.43
0.05
-
Max.
3.10
3.00
1.80
0.55
0.10
10o
Min.
Nom.
0.114
0.110
0.063
0.017
0.002
Max.
A
B
C
D
E
F
G
H
I
0.106
0.102
0.055
0.012
0.000
0o
0.122
0.118
0.071
0.022
0.004
10o
0o
-
1.90 Ref.
1.20 Ref.
0.12 Ref.
0.37 Ref.
0.60 Ref.
0.95 Ref.
0.075 Ref.
0.047 Ref.
0.005 Ref.
0.015 Ref.
0.024 Ref.
0.037 Ref.
J
K
L
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Feb 10, 2004
8/9
AP1201
Single-Channel Power Distribution Switch
(3) Package Type: SOT89-5L
A
C
D
F
B
E
K
J
F
L
I
H
G
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
4.40
4.05
1.50
1.30
2.40
0.80
Nom.
4.50
4.15
1.60
1.40
2.50
-
Max.
4.60
4.25
1.70
1.50
2.60
-
Min.
Nom.
0.177
0.163
0.063
0.055
0.098
Max.
A
B
C
D
E
F
G
H
I
0.173
0.159
0.059
0.051
0.094
0.031
0.181
0.167
0.067
0.059
0.102
-
-
3.00 Ref.
1.50 Ref.
0.46
0.118 Ref.
0.059 Ref.
0.018
0.40
1.40
0.35
0.52
1.60
0.43
0.016
0.055
0.014
0.020
0.063
0.017
J
K
L
1.50
0.059
0.39
0.015
5o Typ.
5o Typ.
Anachip Corp.
www.anachip.com.tw
Rev.0.4 Feb 10, 2004
9/9
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