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– Advanced Analog Technology, Inc. –
Page 1 of 11 V 1.0
AAT101
5
Details are subject to change without notice
3-CHANNEL PC POWER SUPPLY SUPERVISOR
FEATURES
z 3-Channel PC Power Supply Supervisor
z Over Voltage Protection for 3.3V, 5V, 12V
Output
z Under Voltage Protection for 3.3V, 5V
Output with 75 ms Enable Delay
z Fault Protection Output with Open Drain
Output
z Open Drain Power Good Output
z 300 ms Power Good Delay
z 2.3 ms ONCTL to FPO Turn Off Delay
z 38 ms ONCTL Signal De-Bounce
z 73 µs De-Bounce
z Latch Function Controlled by ONCTL and
Protection Input.
PIN CONFIGURATION
GENERAL DESCRIPTION
The AAT1015 is a 3-channel PC switching power
supply supervisor that provides Over Voltage
Protection (OVP), Under Voltage Protection
(UVP), and Power Good Indicator to monitor and
control the output of the switching power supply
system.
In addition to the implemented remote function
from external signal, i.e., On/Off Control
(ONCTL ), over voltage fault protection and under
voltage fault protection can also be directly
triggered without external voltage divider.
AAT1015 also greatly reduce the PCB board
space for power supply system.
With a minimal number of external components,
the AAT1015 offers a simple and cost effective
solution.
1
2
3
45
6
7
8
PGI
GND
FPO
ONCTL
PGO
Vcc
V5
V33
TO P VIEW
(PDIP-8 PACKAGE)
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AAT101
5
FPO (Fault Protection Output)
NORMAL=“LOW”, FAULT=“HIGH”
FPO indicates the fault condition of either Over
Voltage or Under Voltage. When a fault state
occurs, the FPO would be latched high and
combined with a low PGO output.
PGO (Power Good Output)
NORMAL=“HIGH”, FAULT=“LOW”.
A Power Good signal will be issued with 300 ms
delay after 3.3V, 5V, 12V and PGI are ready.
Power Good Output should be low before the
output voltage is out of regulation at turn-off.
OVP and UVP (Over Voltage Protection and
Under Voltage Protection)
OVP monitors 3.3V, 5V, and 12V via CC
V pin,
while UVP monitors 3.3V and 5V. OVP and
UVP levels are determined by internal voltage
dividers. The typical values are 3.9V, 6.1V,
13.8V for OVP and 2.2V, 3.5V for UVP,
respectively.
ONCTL (On/Off Control)
On/Off Control i s used to reset the latched stat e of
FPO and to externally control the switching
power supply system with a 38 ms de-bounce time.
AAT1015 offers 2.3 ms delay time after de-bounce
to trigger FPO when ONCTL switches from
low to high
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AAT101
5
PIN DESCRIPTION
Pin No Nam e I/O Description
1 PGI I Power Good Input Signal
2 GND Ground
3 FPO O Inverted Fault Protection Output, Open Drain Output Stag e
4 ONCTL I ON/OFF Control Input
5 V33 I Over and Under Voltage Protection for 3.3V
6 V5 I Over and Under Voltage Protection for 5V
7 CC
V I Supply Voltage and 12V Over Voltage Protection Input
8 PGO O Power Good Output Signal; Open Drain Output Stage
ABSOLUTE MAXIMUM RATINGS
Characteristics Symbol Value Unit
Supply Voltage CC
V 16 V
FPO Output Voltage FPO
V 16 V
PGO Output Voltage PGO
V 8 V
Supply Current CC
I 1 mA
Operating Free-Air Temperature Range C
T 20
−
to +85 oC
Storage Temperature Range storage
T 45
−
to +125 oC
RECOMMENDED OPERATING CONDITIONS
Test Condition Min Typ Max Unit
Supply Voltage, CC
V 4 15 V
Input Voltage, I
V ONCTL , V5,
V33, PGI 7 V
FPO
V 15 V
Output Voltage
PGO
V 7 V
FPO
I 30 mA
Output Sink Current, O
I (Sink)
PGO
I 10 mA
Supply Voltage Rising Time, r
t See Note 1 1 ms
Note 1: VCC slew rate must be less than 14 V/ms.
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AAT101
5
ELECTRICAL CHARACTERISTICS, VCC = 5 V (UNLESS OTHERWISE
SPECIFIED)
Over Voltage Protection and Under Voltage Protection
Parameter Test Condition Min Typ Max Unit
V33 3.7 3.9 4.1
V5 5.7 6.1 6.5
Over Voltag e
Threshold VCC 13.2 13.8 14.4
V
V33 2.0 2.2 2.4
V 5 3.3 3.5 3.7
Under-Voltage
Threshold CC
V
3.8 V
PGO and FPO Parameter Test Condition Min Typ Max Unit
LKG
I
Leakage Current (PGO) PGO = 5 V
5 A
µ
OL
V
Low Level Output Voltage
(PGO) ksin
I = 10 mA
0.4 V
LKG
I Leakage Current (FPO) V(FPO) = 5 V
5 A
µ
ksin
I = 10 mA
0.3
OL
V Low Level Output Voltage
(FPO) ksin
I = 30 mA
0.7 V
PGI and ONCTL
Parameter Test Condition Min Typ Max Unit
Input Threshold Voltage (PGI) 1.10 1.15 1.20 V
Input Pull-Up Current (ONCTL ) ONCTL = 0 V 150 A
µ
High-Level Input Voltage
(ONCTL ) 2.0 V
Low-Level Input Voltage (ONCTL ) 0.8 V
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Page 5 of 11 V 1.0
AAT101
5
ELECTRICAL CHARACTERISTICS, VCC = 5 V (UNLESS OTHERWISE
SPECIFIED)
Operating Current
Parameter Test Condition Min Typ Max Unit
CC
I
Supply Current ONCTL = 5 V 1 mA
Switching Characteristics, VCC = 5V, Top = Full Range
Parameter Test Condition Min Typ Max Unit
1d
t
PGO Delay Time 200 300 450 ms
2d
t
Under Voltage Protection
Delay Time 49 75 114 ms
3d
t
ONCTL Off to FPO Delay
1b
t+1.1 1b
t+2.3 1b
t+4.4 ms
1b
t ONCTL De-Bounce Time 24 38 57 ms
2b
t
Noise De-Bounce Time 47 73 110
s
µ
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Page 6 of 11 V 1.0
AAT101
5
BLOCK DIAGRAM
Vref
Power on Reset
Reset
VINT
VIN T =3.58 V
UVLO
PGI
Vref 300 m s
Delay
CLR
POD
Vref
73 µs
Debounce
R
73 µs
Debounce
R
75 m s
Delay
Bandgap
Reference
VBG =1.28
ONCTL
150 uA
Vcc
38 m s
Debounce
Reset
POD
Oscillator
Reset
POD
POD2
2.3 m s
Delay
CLR
Vcc
GND
V33
V5
UV5
UV33
UV5 OV5
UV33 OV33
OV12
Vref
73 µs
Debounce
R
Vref
Vref
POD POD2
R
Reset R
S
OV12
OV5
OV33
Q
S
RQ
Q
FPO
Level
Shift
PGO
Level
Shift
R
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Page 7 of 11 V 1.0
AAT101
5
TIMING CHART
Vcc
Reset
R
ONCTL
S
Q
FPO
PGI
3.3 V
5 V
12 V
PGO td1 td1 td1
tb1 tb1
Protection Occur ONCTL
OFF ONCTL
ON
PG O FF delay
AC
OFF
td3
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Page 8 of 11 V 1.0
AAT101
5
PACKAGE DIMENSION
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AAT101
5
PACKAGE DIMENSION (CONT.)
DIMENSION IN MILLIMETERS DIMENSION IN INCHES
SYMBOL MIN TYP MAX MIN TYP MAX
A 3.6 3.9 4.2 0.142 0.154 0.165
A1 0.38 ----- ----- 0.015 ----- -----
A2 3.25 3.30 3.45 0.128 0.130 0.136
B 0.36 0.46 0.56 0.014 0.018 0.022
B1 1.400 1.524 1.650 0.055 0.060 0.065
B2 0.813 0.990 1.170 0.032 0.039 0.046
C 0.20 0.25 0.33 0.008 0.010 0.013
D 9.12 9.30 9.53 0.359 0.366 0.375
E 7.62 7.87 8.26 0.300 0.310 0.325
E1 6.20 6.35 6.60 0.244 0.250 0.260
e ----- 2.54 ----- ----- 0.100 -----
L 3.18 ----- ----- 0.125 ----- -----
eB 8.38 ----- 9.40 0.330 ----- 0.370
S 0.71 0.84 0.97 0.028 0.033 0.038
NOTES:
1. CONTROLLING DIMENSION: INCH.
2. LEAD FRAM MAT ERIAL: C194.
3. PACKAGE DIMENSION EXCLUDE MOLDING FLASH.
4. AFTER SOLDER PLATING, LEAD THICKNESS WILL BE 0.013” MAX.
5. AFTER SOLDER DIPPING, LEAD THICKNESS WILL BE 0.020” MAX.
6. THE MAX. ALLOWABLE MOLDING FLASH IS 0.010”.
7. TOLERANCE: 0.010” UNLESS OTERWISE SPECIFIED.
8. OTHERWI SE DI MENSION FOLLOW ACCEPTABLE SPECS.
9. THE BOTTOM −EPIN INDENT IS MARKED AS BELOW.
10. PACKAGE DIMENSION IS IN COMPLIANCE WITH JEDEC STANDARD MS-001 AB JUL85’ ISSUE B.
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Page 10 of 11 V 1.0
AAT101
5
TAPE AND REEL
PACKING METHOD: 60PCS/TUBE, 3,000PCS/BOX, 12,000PCS/CARTON
POSITION OF THE PRODUCT
INSIDE OF THE PLASTIC TUDE
NOTE: 60PCS/T UBE
Æ TUBES ARE PLACED IN SMALL PAPER
BOXES, WITH THE WHITE PLUG FACING
THE SIDE WITH MARKING
NOTE: 50TUBES/B
MARKING FOR THE SMALL PAPER BOX
SHOULD BE POSITIONED AS SHOWN
ABOVE
NOTE: USE CLEAR TAPE TO SEAL THE SMALL
BOX INSTEAD OF QA SEAL
ÆPOSITION LABEL ON THE RIGHT
CORNER OF THE BLANK BOXES
MARKING ON THE LARGE BOX AS
SHOWN ABOVE
NOTE: 4 SMALL BOXES/LARGE BOX, WITH NO QA
SEAL
Advanced Analog Technology, Inc.
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– Advanced Analog Technology, Inc. –
Page 11 of 11 V 1.0
AAT101
5
PART MARKING
PDIP8 TOP MARKING
AAT1015
BXXXXX.X (LOT NO.)
YYWW TAIWAN
(DATE CODE: 0416->2004, WEEK 16)
NOTE: PDIP8 HAS NO BACK MARKING.
