201944A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 15, 2012
DATA SHEET
AAT4621
PC Card Current Limit Interface and Capacitor Charger
Absolute Maximum Ratings
1
Symbol
V
CC
V
EN
V
SET
, V
OUT
I
MAX
T
J
T
LEAD
T
STG
Description
V
CC
to GND
ENIL, ENIU to GND
ISETL, ISETU, OUT to GND
Maximum Continuous Switch Current
Maximum Junction Operating Temperature Range
Maximum Soldering Temperature (at leads, 10 sec.)
Storage Temperature Range
Value
-0.3 to 6.0
-0.3 to V
CC
+ 0.3
-0.3 to V
CC
+ 0.3
2.5
-40 to +150
300
-65 to 150
Units
V
V
V
A
°C
°C
°C
Thermal Characteristics
Symbol
JA
P
D
Description
Maximum Thermal Resistance
2
Maximum Power Dissipation
2
Value
50
2
Units
°C/W
W
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions
specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.
201944A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 15, 2012
3
DATA SHEET
AAT4621
PC Card Current Limit Interface and Capacitor Charger
Electrical Characteristics
1
V
CC
= 3.0V to 5.5V, T
A
= -40°C to 85°C unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
AAT4621
V
CC
I
Q
I
QU0
I
Q(OFF)
I
SD(OFF)
V
UVLO
R
DS(ON)
I
LIMACC
I
LIMACC
I
LIM(MIN)
V
EN(L)
V
EN(H)
I
EN(SINK)
T
DEL(OFF)
V
RDY
V
RDYHYS
V
RDY(L)
I
RDY
OTMP
Description
Operation Voltage
Quiescent Current
Quiescent Current U
0
Off Supply Current
Off Switch Current
Under-Voltage Lockout
On-Resistance
Lower Current Limit Accuracy
Upper Current Limit Accuracy
Minimum Current Limit
EN Input Low Voltage
EN Input High Voltage
EN Input Leakage
Turn-Off Delay Time
System READY Trip Threshold
System READY Hysteresis
System READY Voltage Low
RDY Leakage Current
Shutdown Temperature
Conditions
Min
3.0
Typ
Max
5.5
75
75
1.0
10
3.0
100
120
220
230
1100
1150
0.4
Units
V
μA
μA
μA
μA
V
m
mA
mA
mA
V
V
μA
μs
% of V
OUT
mV
V
μA
°C
EN IL or EN IU = V
CC
, I
OUT
= 0, R
HYS
= 200k
EN IL = V
CC
, EN IU = GND, I
OUT
= 0, I
SET
=
GND, R
HYS
= 200k
EN IL = EN IU = V
CC
EN IL = EN IU = V
CC
, V
SUPERCAP
= 0
Rising edge, 1% hysteresis
V
CC
= 4.75V, R
SETL
= R
SETU
= 0k
V
CC
= 3.0V, R
SETL
= R
SETU
= 0k
R
SETL
= 249KΩ;
ΔT
A
≤
25°C
R
SETL
= 249KΩ
R
SETU
= 1.24MΩ;
ΔT
A
≤
25°C
R
SETU
= 1.24MΩ
V
CC
= 3.0V to 5.5V
V
CC
= 3.0V to 5.5V
2
V
EN
= 5.5V
V
CC
= 5V
V
OUT
rising, T
A
= 25°C
R
HYS
= 200k
I
SINK
= 1mA
V
RDY
< 5.5V, V
OUT
< 98% of V
OUT
2
40
40
0.4
0.4
2.7
50
65
200
200
1000
1000
75
180
170
900
850
1.4
0.4
98
200
1.0
1.0
0.4
1.0
145
1. The AAT4621 is guaranteed to meet performance specification over the -40°C to 85°C operating temperature range and is assured by design, characterization and correlation
with statistical process controls.
2. For V
CC
outside this range consult the Typical EN Threshold curve.
201944A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 15, 2012
DATA SHEET
AAT4621
PC Card Current Limit Interface and Capacitor Charger
Electrical Characteristics
1
V
CC
= 3.0V to 5.5V, T
A
= -40°C to 85°C unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
Description
Conditions
Min
3
ENIL or ENIU = 0V, I
OUT
= 0; R
HYS
= 200kΩ
ENIL = ENIU = High, V
OUT
= Open
ENIL = ENIU = High, V
OUT
= 0V
Rising Edge
V
CC
= 4.75V, R
SETU
= R
SETL
= 0K
V
CC
= 3.0V, R
SETU
= R
SETL
= 0K
R
SETL
= 249KΩ;
ΔT
A
≤
25°C
R
SETL
= 249KΩ
R
SETU
= 1.24MΩ;
ΔT
A
≤
20°C,
R
SETU
= 1.24MΩ ,
V
CC
= 3.0 to 5.5V
V
CC
= 3.0 to 5.5V
V
CC
= 3.0 to 5.5V
V
CC
= 3.0 to 5.5V
V
EN
= 5.5V
V
CC
= 5.0V
V
OUT
Rising, T
A
= 25°C (V
IN
= 3.3V)
R
HYS
= 200KΩ
I
SINK
= 1mA
V
RDY
< 5.5V, V
OUT
< 98% Of V
OUT
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
40
0.4
0.4
2.7
120
50
65
400
400
2000
2000
150
Typ
Max
5.5
75
1
10
3
100
120
440
460
2200
2300
0.4
0.4
Units
V
μA
μA
μA
V
mV
mΩ
mA
mA
mA
V
V
V
V
μA
μs
% of V
OUT
mV
V
μA
°C
AAT4621-1
V
CC
Operation Voltage
I
Q
Quiescent Current
I
Q(OFF)
Off Supply Current
I
SD(OFF)
Off Switch Current
Under-Voltage Lockout
V
UVLO
Hysteresis
R
DS(ON)
I
LIMACC
I
LIMACC
I
LIM(MIN)
V
EN(L)
V
EN(H)
I
EN(SINK)
T
DEL(OFF)
V
RDY
V
RDYHYS
V
RDY(L)
I
RDY
OTMP
On-Resistance
Lower Current Limit Accuracy
Upper Current Limit Accuracy
Minimum Current Limit
EN Input Low Voltage, VENLU
EN Input Low Voltage, VENLL
EN Input High Voltage, VENHU
EN Input High Voltage, VENHL
EN Input Leakage
Turn-Off Delay Time
System Ready Trip Threshold
System Ready Hysteresis
System Ready Voltage Low
RDY_ Leakage Current
Shutdown Temperature
360
340
1800
1700
1.4
1.4
0.4
98
200
1
1
0.4
1
150
15
1. The AAT4621 is guaranteed to meet performance specification over the -40°C to 85°C operating temperature range and is assured by design, characterization and correlation
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