AS1109-BQFT austriamicrosystems, AS1109-BQFT Datasheet - Page 9

• Manufacturer Part Number: AS1109-BQFT
• Description: IC DRIVER LED 4-BIT CC 16-QFN
• Manufacturer: austriamicrosystems
• Type: General Purposer

Specifications of AS1109-BQFT

• Constant Current: Yes
• Topology: 8-Bit Shift Register, PWM
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: General Purpose
• Frequency: 50MHz
• Voltage - Supply: 3 V ~ 5.5 V
• Voltage - Output: 15V
• Mounting Type: Surface Mount
• Package / Case: 16-WQFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 100mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -

AS1109
Datasheet - D e t a i l e d D e s c r i p t i o n
The 8-bit data register will latch the data of the shift register at each rising edge of LD. This data is then used to drive the current generator output
drivers to switch on the corresponding LEDs as OEN goes low.
Timing Diagrams
This section contains timing diagrams referenced in other sections of this data sheet.
Figure 10. Normal Mode Timing Diagram
Figure 11. Output Delay Timing Diagram
www.austriamicrosystems.com/LED-Driver-ICs/AS1109
OUTNx
OUTN0
OUTN1
OUTN7
SDO
OEN
CLK
SDI
OEN
LD
50%
50%
t
SU(D)
t
H(D)
t
W(CLK)
t
SU(L)
50%
50%
50%
t
P1
50%
OEN Low = Output Enabled
t
W(L)
Revision 1.20
50%
t
P2
50%
t
H(L)
50%
50%
t
P3
50%
t
t
OF
W(OE)
90%
50%
t
STAG
10%
7
X
t
STAG
50%
OUTNx High = Output Off
OUTNx Low = Output On
10%
90%
t
50%
P3
t
OR
t
50%
STAG
7
X
t
STAG
50%
50%
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