AS1112BQFT austriamicrosystems, AS1112BQFT Datasheet - Page 2

• Manufacturer Part Number: AS1112BQFT
• Description: IC, LED DRIVER, CONSTANT CURRENT, TQFN32
• Manufacturer: austriamicrosystems

Specifications of AS1112BQFT

• Led Driver Application: LED Displays, LED Signboards And Display Backlights
• No. Of Outputs: 16
• Output Current: 80mA
• Output Voltage: 15V
• Input Voltage: 3V To 5.5V
• Topology: Constant Current
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AS1112
Data Sheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 2. Pin Descriptions
www.austriamicrosystems.com
Pin Number
12,13,28
14:21
4:11
22
23
24
25
26
27
29
30
31
32
33
1
2
3
MODE
OUT0
OUT1
OUT2
OUT3
OUT4
CLK
SDI
1
2
3
4
5
6
7
8
OUT8:OUT15 Constant-Current Outputs 8:15
OUT0:OUT7 Constant-Current Outputs 0:7
Thermal Pad Thermal Pad. This pin must be connected to GND to ensure normal operation.
Pin Name
GSCLK
XTEST
MODE
XERR
TEST
SDO
GND
OEN
CLK
I
V
N/C
N/C
SDI
PD
REF
LD
CC
AS1112
Thermal
Pad
Serial Data Shift Clock
Serial Data Input
Mode Select input with internal pulldown
MODE = GND: Selects greyscale mode
MODE = V
Error Output
0 = LED open detection or overtemperature condition is detected.
1 = Normal operation.
Serial Data Output
Greyscale Clock. Reference clock for greyscale PWM control
Test Pin This pin must be connected to GND (AS1112) to ensure normal operation.
Test Pin This pin must be connected to V
Reference Current Terminal
Power Supply Voltage
This pin must not be connected.
Power Down input with internal pulldown (AS1112)
0 = normal operation mode
1 = powerdown mode
Not Connected (AS1112B)
Ground
Blank Outputs
0 = OUTn outputs are controlled by the greyscale PWM control.
1 = OUTn outputs are forced off; the greyscale counter is reset.
Data Latch. The internal connections are switched by pin MODE.
For LD (MODE = GND), the greyscale register receives new data.
For LD (MODE = V
33
CC
24 GSCLK
23 SDO
22 XERR
21 OUT15
20 OUT14
19 OUT13
18 OUT12
17 OUT11
: Selects dot correction mode
CC
), the dot correction register receives new data.
Revision 1.04
MODE
OUT0
OUT1
OUT2
OUT3
OUT4
CLK
SDI
Description
1
2
3
4
5
6
7
8
(see Setting Greyscale Brightness on page
CC
(see Setting Dot Correction on page
(AS1112B) to ensure normal operation.
AS1112B
Thermal
Pad
33
24 GSCLK
23 SDO
22 XERR
21 OUT15
20 OUT14
19 OUT13
18 OUT12
17 OUT11
11).
2 - 18
12).