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| AAT4621_12 Datasheet, PDF (4/17 Pages) Skyworks Solutions Inc. – PC Card Current Limit Interface and Capacitor Charger | |||
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DATA SHEET
AAT4621
PC Card Current Limit Interface and Capacitor Charger
Electrical Characteristics1
VCC = 3.0V to 5.5V, TA = -40°C to 85°C unless otherwise noted. Typical values are at TA = 25°C.
Symbol
AAT4621
VCC
IQ
IQU0
IQ(OFF)
ISD(OFF)
VUVLO
RDS(ON)
ILIMACC
ILIMACC
ILIM(MIN)
VEN(L)
VEN(H)
IEN(SINK)
TDEL(OFF)
VRDY
VRDYHYS
VRDY(L)
IRDY
OTMP
Description
Operation Voltage
Quiescent Current
Quiescent Current U0
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
EN IL or EN IU = VCC, IOUT = 0, RHYS = 200kï
EN IL = VCC, EN IU = GND, IOUT = 0, ISET =
GND, RHYS = 200kï
EN IL = EN IU = VCC
EN IL = EN IU = VCC, VSUPERCAP = 0
Rising edge, 1% hysteresis
VCC = 4.75V, RSETL = RSETU = 0k
VCC = 3.0V, RSETL = RSETU = 0k
RSETL = 249KΩ; ÎTA ⤠25°C
RSETL = 249KΩ
RSETU = 1.24MΩ; ÎTA ⤠25°C
RSETU = 1.24MΩ
VCC = 3.0V to 5.5V2
VCC = 3.0V to 5.5V2
VEN = 5.5V
VCC = 5V
VOUT rising, TA = 25°C
RHYS = 200kï
ISINK = 1mA
VRDY < 5.5V, VOUT < 98% of VOUT
Min Typ Max Units
3.0
5.5
V
40
75
μA
40
75
μA
0.4 1.0
μA
0.4
10
μA
2.7 3.0
V
50 100
mï
65 120
180 200 220
170 200 230
mA
900 1000 1100
mA
850 1000 1150
75
mA
0.4
V
1.4
V
1.0
μA
0.4 1.0
μs
98
200
% of VOUT
mV
0.4
V
1.0
μA
145
°C
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 VCC outside this range consult the Typical EN Threshold curve.
Skyworks Solutions, Inc. ⢠Phone [781] 376-3000 ⢠Fax [781] 376-3100 ⢠sales@skyworksinc.com ⢠www.skyworksinc.com
4
201944A ⢠Skyworks Proprietary Information ⢠Products and Product Information are Subject to Change Without Notice. ⢠May 15, 2012
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