AAT1232 Advanced Analog Technology, Inc., AAT1232 Datasheet - Page 13

• Manufacturer Part Number: AAT1232
• Description: 24V 100mA Step-Up Converter
• Manufacturer: Advanced Analog Technology, Inc.

S
AnalogicTech's S
etary high-speed single-wire interface available
only from AnalogicTech.
records rising edges of the EN/SET input and
decodes into 16 different states. Each state corre-
sponds to a voltage setting on the FB2 pin.
S
The S
Data can be clocked-in at speeds up to 1MHz. After
data has been submitted, EN/SET is held high to
latch the data for a period T
sequently changed to the predetermined voltage.
When EN/SET is set low for a time greater than
T
1232.2006.12.1.3
OFF
2
2
Cwire Serial Interface
Cwire Serial Interface Timing
, the AAT1232 is disabled. When disabled, the
(SEL = High)
2
Cwire serial interface has flexible timing.
V
10.0
12.0
15.0
16.0
18.0
20.0
24.0
12.0
15.0
16.0
18.0
15.0
16.0
18.0
18.0
20.0
24.0
24.0
OUT
-
-
-
-
-
-
-
Table 1: SEL Pin Voltage Control Resistor Values (1% resistor tolerance).
2
Cwire serial interface is a propri-
(SEL = Low)
The S
LAT
V
. The output is sub-
10.0
12.0
15.0
16.0
18.0
20.0
24.0
10.0
10.0
10.0
10.0
12.0
12.0
12.0
15.0
15.0
15.0
18.0
OUT
-
-
-
-
-
-
-
2
Cwire interface
R1 (kΩ Ω )
36.5
44.2
57.6
61.9
69.8
78.7
95.3
78.7
95.3
75.0
76.8
76.8
78.7
90.9
93.1
93.1
121
127
143
162
196
143
115
118
118
R3 = 4.99kΩ Ω
register is reset to the default value, which sets the
FB2 pin to 0.6V if EN is subsequently pulled high.
EN/SET
Rising
Edges
Table 2: S
24V 100mA Step-Up Converter
1
2
3
4
5
6
7
8
R2 (kΩ Ω )
0.562
3.32
1.65
1.24
3.01
2.49
1.65
3.32
2.49
1.24
2.49
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.60 (Default)
Voltage (V)
Reference
2
Cwire Voltage Control Settings
FB2
0.64
0.68
0.72
0.76
0.80
0.84
0.88
(SEL = Low).
R1 (kΩ Ω )
147
182
232
249
280
316
383
316
383
487
511
590
649
787
301
309
309
316
374
374
374
464
475
475
576
EN/SET
Rising
Edges
R3 = 20.0kΩ Ω
10
12
13
14
15
16
11
9
AAT1232
R2 (kΩ Ω )
Voltage (V)
Reference
13.0
6.65
4.99
2.21
12.1
10.0
6.65
13.3
10.0
4.99
10.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FB2
0.92
0.96
1.00
1.04
1.08
1.12
1.16
1.20
13