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参数资料
| 型号： | LT1768 |
| 厂商： | Linear Technology Corporation |
| 英文描述： | High Power CCFL Controller with Multimode Dimming(大功率,冷阴极荧光灯(CCFL)控制器(电流型脉宽调制控制器)) |
| 中文描述： | 高功率CCFL控制器与多模调光（大功率，冷阴极荧光灯（CCFL）作为控制器（电流型脉宽调制控制器）） |
| 文件页数： | 2/16页 |
| 文件大小： | 208K |
| 代理商： | LT1768 |
LT1768
2
SYMBOL
I
Q
I
SHDN
PARAMETER
Supply Current
Supply Current in Shutdown
SHDN Pin Pull-Up Current
SHDN Threshold Voltage
SHDN Threshold Hysteresis
V
IN
Undervoltage Lockout
V
IN
Undervoltage Lockout
REF Voltage
REF Line Regulation
REF Load Regulation
R
MAX
Pin Voltage
R
MIN
Pin Voltage
Switching Frequency
Maximum Duty Cycle
Minimum ON Time
PROG Pin Input Bias Current
PROG Pin Voltage for Zero Lamp Current
PROG Pin Voltage for Minimum Lamp Current
PROG Pin Voltage for Maximum Lamp Current
CONDITIONS
9V< V
VIN
< 24V
V
SHDN
= 0V
V
SHDN
= 0V
V
SHDN
Off to On
MIN
TYP
7
65
7
1.26
200
7.9
7.4
5
7
10
1.25
1.26
350
93
125
100
0.5
1
4
MAX
8
100
12
1.8
300
8.2
7.5
5.1
20
20
1.275
1.30
390
UNITS
mA
G
G
μ
A
μ
A
G
4
G
0.6
100
7.2
7.1
4.9
V
G
mV
V
IN
Off to On
V
IN
On to Off
I
REF
= –1mA
V
VIN
8V to 24V I
REF
= –1mA
I
REF
–1mA to –10mA
G
V
V
V
G
V
REF
G
G
mV
mV
G
V
RMAX
V
RMIN
FSW
G
1.225
1.22
330
V
V
G
V
PROG
= 0.75V, V
SENSE
= 0V
V
PROG
= 0.75V, V
SENSE
= 0V
V
PROG
= 0.75V, V
SENSE
= 150mV
V
PROG
= 5V
(Note 2)
(Note 3)
(Note 4)
G
kHz
%
ns
nA
I
PROG
V
PROG
G
500
0.55
1.1
4.2
G
G
G
0.45
0.9
3.8
V
V
V
Input Voltage (V
IN
Pin) ............................................ 28V
SHDN Pin Voltage.................................................... 28V
FAULT Pin Voltage................................................... 28V
PROG Pin Voltage................................................... 5.5V
PWM Pin Voltage.................................................... 4.5V
C
T
Pin Voltage ........................................................ 4.5V
SENSE Pin Voltage .................................................... 1V
DIO1, DIO2 Input Current ...................................
±
50mA
R
MAX
Pin Source Current..................................... 750
μ
A
R
MIN
Pin Source Current ..................................... 750
μ
A
V
REF
Pin Source Current....................................... 10mA
Operating Junction Temperature Range ....0
°
C to 125
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering 10 sec)...................300
°
C
ORDER PART
NUMBER
Consult factory for Military grade parts.
ABSOLUTEW
(Note 1)
W
W
U
PACKAGE/ORDER IU
U
W
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C, V
VIN
= 12V, I
DIO1/2
= 250
μ
A, V
PROG
= 0V, V
PWM
= 2.5V, I
RMAX
= –100
μ
A,
I
RMIN
= –100
μ
A, unless otherwise specified.
T
JMAX
= 125
°
C,
θ
JA
= 100
°
C/W
1
2
3
4
5
6
7
8
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
16
15
14
13
12
11
10
9
PGND
DI01
DI02
SENSE
VC
AGND
C
T
PROG
GATE
V
IN
V
REF
FAULT
SHDN
R
MIN
R
MAX
PWM
LT1768CGN
LT1768IGN
The
G
denotes the specifications which apply over the full operating
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1768CGN | 功能描述:IC CTRLR CCFL SGL/MULT HP 16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| LT1768CGN#PBF | 功能描述:IC CTRLR CCFL SGL/MULT HP 16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| LT1768CGN#TR | 功能描述:IC CTRLR CCFL SGL/MULT HP 16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| LT1768CGN#TRPBF | 功能描述:IC CTRLR CCFL SGL/MULT HP 16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| LT1768IGN | 功能描述:IC CTRLR CCFL SGL/MULT HP 16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
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