AAT4901IJS-1-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT4901IJS-1-T1 Datasheet - Page 8

• Manufacturer Part Number: AAT4901IJS-1-T1
• Description: Buffered Power Full-Bridge
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Options
AAT4901-1
H-bridge configuration with two enables. Enable B is
active high and enables the H-bridge output. Enable A
toggles the H-bridge outputs A and B in anti-phase. In
steady state, this can provide forward/reverse motor
drive signals.
AAT4901-2
H-bridge configuration with two enables. Enable A and
Enable B are in anti-phase and provide forward/reverse
and braking.
AAT4901-3
Dual independent half-bridge configuration with four
enables. Function similar to 2 x AAT4900.
AAT4901-4
H-bridge with two enables. Enable A and Enable B are in
anti-phase and toggle the H-bridge outputs A and B in
anti-phase respectively. In steady state, this can provide
forward/reverse motor drive signals to adjust the motor
speed by various duty cycles.
Timing Diagram
8
FastSwitch
TM
V_ENA
V_OUTA
V_ENB
V_OUTB
T
T
ON-DLY-R
ON-DLY-F
50%
50%
10%
90%
Figure 1: AAT4901-4 Timing Diagram.
T
T
ON-DLY-F
ON-DLY-R
50%
50%
w w w . a n a l o g i c t e c h . c o m
90%
10%
50%
T
HIZ_GND
AAT4901-1/-4 Logic Table
AAT4901-2 Logic Table
AAT4901-3 Logic Table
ENA
50%
(OFF)
(OFF)
0
1
0
1
Hi Z
Hi Z
ENA
ENA/C
T
0
1
0
1
-1
ON-DLY-R
0
1
0
1
ENB
0
0
1
1
50%
ENB
ENA
Buffered Power Full-Bridge
0
0
1
1
PRODUCT DATASHEET
0
1
1
0
T
HIZ_IN
ENB/D
-4
50%
0
0
1
1
ENB
(OFF)
(OFF)
Hi Z
Hi Z
0
1
0
1
AAT4901
T
OUTA
ON-DLY-F
GND
Hi Z
IN
IN
OUTA
GND
Hi Z
Hi Z
IN
4901.2008.03.1.0
OUTA/B
GND
Hi Z
Hi Z
OUTB
IN
GND
Hi Z
OUTB
IN
IN
GND
Hi Z
Hi Z
IN