LT1186F 查看數據表（PDF） - Linear Technology
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LT1186F Datasheet PDF : 16 Pages
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LT1186F
BLOCK DIAGRAM
LT1186F DAC Programmable CCFL Switching Regulator
VCC
BAT ROYER
12
14
13
SHUTDOWN 6
SHUTDOWN
2.4V
REGULATOR
UNDER-
VOLTAGE
LOCKOUT
THERMAL
SHUTDOWN
200kHz
OSC
+
CCFL
–
V1
0.465V
Q5
1×
Q3
2×
Q4 Q7
5× 9×
R4
0.1Ω
LOGIC
–+
D2
6V
gm
R3
1k
Q6
2×
Q11
COMP
Q8
1×
Q9
Q10
3×
2×
D1
CCFL
VSW
16
DRIVE
Q1
ANTI-
SAT
+
CURRENT
AMP
–
GAIN = 4.4
R1
0.125Ω
2
ICCFL
POWER-ON
RESET
CLK 7
DIN 9
CS 8
5
AGND
3
15
DIO
BULB
LATCH
AND
LOGIC
UP ONLY/
UP/DN
VOLTAGE
REFERENCE
SHDN
LATCH
AND
LOGIC
MODE SELECT
0 = PULSE
1 = SPI
4
CCFL
VC
8-BIT
SHDN CURRENT
DAC
8
1
CCFL
PGND
11 IOUT
50µA
FULL SCALE
CONTROL
LOGIC
CLK
8-BIT COUNTER/REGISTER
UP/DN
8
8
CLK
9-BIT SHIFT REGISTER
Q9
DO(LSB)
10 DOUT
LT1186F • BD
10
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