AAT4621_12 Datasheet, PDF (9/17 Pages) Skyworks Solutions Inc. – PC Card Current Limit Interface and Capacitor Charger

Typical Characteristics
Hard Short Circuit
(V_CC = 3.3V)
4
V_CC
2
V_OUT
0
I_OUT
DATA SHEET
AAT4621
PC Card Current Limit Interface and Capacitor Charger
Hard Short Circuit
(V_CC = 5V)
6
4
V_CC
2
V_OUT
0
1.5
1.5
1.0
1.0
0.5
I_OUT
0.5
0.0
0.0
Time (20ms/div)
Time (20ms/div)
Soft Short Circuit with 5Ω Series Impedance
(V_CC = 3.3V)
6
5
4
V_CC and V_OUT
3
0.6
I_OUT
0.4
0.2
0.0
Time (2ms/div)
Soft Short Circuit with 5Ω Series Impedance
(V_CC = 5V)
6
5
V_CC and V_OUT
4
1.0
I_OUT
0.8
0.6
0.4
0.2
0.0
Time (2ms/div)
Charging Profile
(I_LIMIT = 150mA; V_CC = 4.5V; C_O = 0.55F)
6
4
V_OUT
2
0
0.15
0.10
I_OUT
0.05
0.00
Time (5s/div)
Charging Profile
(I_LIMIT = 1A; V_CC = 4.5V; C_O = 0.55F)
6
Thermal Foldback
4
V_OUT
2
1.0
0
0.8
0.6
0.4
I_OUT
0.2
0.0
Time (1s/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201944A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 15, 2012
9