AS1121-BQFT austriamicrosystems, AS1121-BQFT Datasheet - Page 2

• Manufacturer Part Number: AS1121-BQFT
• Description: IC LED DRIVER 16-CH 30V 32-TQFN
• Manufacturer: austriamicrosystems

Specifications of AS1121-BQFT

• Constant Current: Yes
• Internal Driver: Yes
• Type - Primary: Backlight, General Purpose
• Type - Secondary: Color
• Mounting Type: *
• Topology: PWM
• Number Of Outputs: 16
• Voltage - Supply: 3.1 V ~ 3.6 V
• Voltage - Output: 1.5 V ~ 30 V
• Package / Case: *
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency: -
• Other names: AS1121-BQFTTR

AS1121
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 1. Pin Descriptions
www.austriamicrosystems.com/LED-Driver-ICs
Pin Number
12,13,28
25, 27
14:21
4:11
22
23
24
26
29
30
31
32
33
1
2
3
OUT8:OUT15
Thermal Pad
OUT0:OUT7
Pin Name
GSCLK
MODE
XERR
IREF
SDO
VCC
GND
OEN
CLK
SDI
N/C
PD
LD
Serial Data Shift Clock
Serial Data Input
Mode Select input with internal pulldown
MODE = GND: Selects greyscale mode
MODE = V
Constant-Current Outputs 0:7
Constant-Current Outputs 8:15
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
Reference Current Terminal
Power Supply Voltage
This pins must not be connected
Power Down
0 = normal operation mode
1 = power down mode
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
Thermal Pad. This pin must be connected to GND to ensure normal operation.
MODE
OUT0
OUT1
OUT2
OUT3
OUT4
CLK
SDI
CC
: Selects dor correction mode
1
2
3
4
5
6
7
8
CC
), the dot correction register receives new data.
AS1121
Revision 1.00
Thermal
Pad
(see Setting Greyscale Brightness on page 11)
33
(see Setting Dot Correction on page 10)
Description
24 GSCLK
23 SDO
22 XERR
21 OUT15
20 OUT14
19 OUT13
18 OUT12
17 OUT11
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