Buffered Power Half-Bridge
Typical Characteristics
Operating Current vs. Input Voltage
(F
S
= 1MHz)
7
6
5
4
3
2
1
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
AAT4900
Operating Current vs. Switching Frequency
10.000
1.000
0.100
0.010
0.001
0.000
0.0
Operating Current (mA)
Operating Current (mA)
V
IN
= 5V
V
IN
= 3V
0.1
1
10
100
1000
10000
Input Voltage (V)
Frequency (kHz)
Operating Current vs. Temperature
(F
S
= 1MHz)
Operating Current (mA)
Operating Current (mA)
12
10
8
6
4
2
0
-40
-20
0
20
40
60
80
100
120
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
-40
Operating Current vs. Temperature
(F
S
= 1MHz)
V
IN
= 3.1V
V
IN
= 5.5V
V
IN
= 2.7V
V
IN
= 4.3V
-20
0
20
40
60
80
100
120
Temperature (°C)
Temperature (°C)
High Side R
DS(ON)
vs. Output Current
0.22
0.21
0.20
0.19
0.18
0.17
0.16
0.15
0.14
0.13
0.12
0.11
0.10
0.20
Low Side R
DS(ON)
vs. Output Current
0.16
V
IN
= 2.7V
0.15
0.14
V
IN
= 2.7V
R
DS(ON)
(Ω)
R
DS(ON)
(Ω)
0.13
0.12
0.11
0.10
V
IN
= 5.5V
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
2.20
0.09
0.08
0.2
V
IN
= 5.5V
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2.2
Output Current (A)
Output Current (A)
4900.2006.05.1.3
5
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
