參數(shù)資料
型號(hào)： LX1692IDW
廠商： MITSUMI ELECTRIC
英文描述： Full Bridge Resonant CCFL Controller
中文描述： 全橋諧振CCFL控制器
文件頁(yè)數(shù)： 5/15頁(yè)
文件大小： 280K
代理商： LX1692IDW
LX1692
P
RODUCTION
D
ATA
S
HEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright
2004
Rev. 1.1, 2/9/2006
W
M
.
C
Full Bridge Resonant CCFL Controller
TM
E L E C T R I C A L C H A R A C T E R I S T I C S
Unless otherwise specified, the following specifications apply over the operating ambient temperature -20
°
C
≤
T
A
≤
70
°
C except where
otherwise noted and the following test conditions:.
LX1692
Typ
Parameter
Symbol
Test Conditions
Min
Max
Units
`
`
`
`
`
`
POWER
Power Supply Input Voltage
Power Supply Output Voltage
VDDP
VDD_A
VDDP = 4.5V to 5.5V, I Load = 5mADC
C
AOUT
= C
= C
COUT
= C
DOUT
=2000pF,
f
LAMP
= 62.5kHz
4.5
3.8
5.5
4.2
V
V
4.0
VDDP
Operating Current
I
BB
10
15
mA
ENABLE INPUT
ENABLE Logic Threshold
ENABLE threshold Hysteresis
ENABLE High
ENABLE Low
Sleep Mode Current
Input Resistance
UNDER VOLTAGE LOCKOUT
UVLO Threshold VDDP
UVLO Hysteresis
BRIGHTNESS CONTROL
BRITE_A Voltage Range
Full Brightness BRITE_A Input
Full Darkness BRITE_A Input
Full Darkness BRITE_A input Offset V
DARKFULL_OS
V
R_BR_D
= VDDA, BRITE_A = 0V
BRITE_D Voltage Range
V
R_BR_D
Full Brightness BRITE_D Input
V
BR_FULL _D
Full Darkness BRITE_D Input
V
DARK_FULL_D
V
R_BR_A
= VDDA
BURST RAMP GENERATOR
Ramp Valley Voltage
V
RVV
Ramp Peak Voltage
V
RPV
Ramp Frequency
F
Ramp
Burst Duty Cycle Range
BRITE_D to DIMPWM Jitter
J
BDD
Burst PWM min Duty Resolution
DR
BST
LAMP FREQUENCY GENERATOR
Lamp Frequency Range
F
LAMP
Max Lamp Strike Frequency
F
LAMP_STK
V
TH_EN
V
H_EN
V
EN_HIGH
V
EN_LOW
I
DD_SLEEP
R
ENR
V
ENABLE
= 0V
1.6
2.4
0
1.85
500
20
100
2.0
VDDP
0.8
50
V
mV
V
V
μA
K
V
TH_UVLO_P
V
H_UVLO
Rising edge
3.8
4.2
V
mV
200
V
R_BR_A
V
BR_FULL _A
V
DARK_FULL_A
V
R_BR_D
= VDDA
V
R_BR_D
= VDDA, T
A
=25
°
C
0
VDDP
2.1
0.55
VDDP
2.63
0.67
V
V
V
V
V
V
V
1.9
0.35
0.4
2.37
0.43
2
0
0.45
2.5
0.55
V
R_BR_A
= VDDA, T
A
= 25°C
V
R_BR_A
= VDDA
C_BST = 10nF, I_R = 40K
C_BST = 10nF, BRITE_D = 2.4V
0.43
2.37
230
0
0.55
2.5
250
1
0.67
2.63
270
100
3
1
V
V
Hz
%
μs
%
Lamp is not ignited
Lamp Ignited, Run Mode, T
A
= 25
°
C, I_R = 40K,
C_R = 100pF
4.5 > VDDP < 5.5V, T
A
= 25
°
C
VDDP = 5.5V
30
150
150
KHz
KHz
Lamp Run Ramp Frequency
F
LAMP_RUN
60.6
62.5
64.4
KHz
Lamp Run Ramp Frequency
Regulation
Ramp Valley Voltage
Ramp Peak Voltage
Ramp PWM Jitter
VIN_SNS RAMP
F
LAMP_REG
±0.5
±
0.1
1
% / V
%/
°
C
V
V
μs
VL
RVV
VL
RPV
LFJ
0.2
2.0
`
Ramp Peak Clamp Voltage
V
RPCV
VIN = 8V, C_P = C_R = 100pF, R_P = TBD,
VDDP = 5V
5
VDDP+0
.9
18
V
VIN_SNS Discharge Current
I
VRVV
7
12.5
mA
E
L
E
C
T
R
I
C
A
L
S
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