SC604AIMLTR Semtech, SC604AIMLTR Datasheet - Page 6

• Manufacturer Part Number: SC604AIMLTR
• Description: IC,Laser Diode/LED Driver,LLCC,16PIN,PLASTIC
• Manufacturer: Semtech

Specifications of SC604AIMLTR

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 1 - LED Enable Logic
Notes:
(1) The sequencing of Enable and logic state CTRL{2,1,0} = [1, 1, 1] will affect quiescent state current. I
CTRL{2,1,0} transitions to [1, 1, 1]. I
1] is to be used for an extended period of time, it is recommended that Enable = High when change to the [1, 1, 1] state to achieve the lower I
POWER MANAGEMENT
Block Diagram
2005 Semtech Corp.
C
T
R
0
0
0
0
1
1
1
1
L
2
EN
VOUT
VIN
6
7
1
C
o
n
Schmitt Buffer
r t
C1+
C
8
l o
T
R
0
0
1
1
0
0
1
1
n I
C1-
9
L
p
1
Q
mAhXLife
u
= 400µA if Enable transitions high after CTRL{2,1,0} transitions to [1, 1, 1]. If Enable = high and CTRL{2,1,0}= [1, 1,
C2-
s t
10
[1x, 1.5x, 2x]
(
) 1
C2+
11
250kHz
Oscillator
& Delay Clk
TM
Fractional Charge Pump
ILED4
C
13
T
R
0
0
0
0
1
1
1
1
L
0
Mode Select
[1x, 1.5x, 2x
Startup, Shutdown]
ILED3
14
L
O
O
O
O
O
O
E
O
O
6
F F
F F
F F
F F
F F
F F
D
N
N
4
Current Brightness Control
Current Sense FETs
and Amplifier(s)
Ouput Selection
Logic
ILED2
15
L
O
O
O
O
O
E
O
O
O
F F
F F
F F
F F
F F
D
N
N
N
3
O
u
Q
p t
= 100µA if Enable transitions high before
t u
t S
ILED1
16
t a
Current Set Detect
1.22V Bandgap
Voltage
Schmitt Buffer
Schmitt Buffer
Schmitt Buffer
s u
L
O
O
O
O
E
O
O
O
O
F F
F F
F F
F F
D
N
N
N
N
2
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SC604A
12
5
3
4
2
CTRL0
GND
CTRL1
CTRL2
ISET
L
O
O
O
O
E
O
O
O
O
F F
F F
F F
F F
D
N
N
N
N
Q
1
level.