- 您现在的位置：买卖IC网 > PDF目录20877 > LT3517EUF#TRPBF (Linear Technology)IC LED DRIVER AUTOMOTIVE 16-QFN PDF资料下载
参数资料
| 型号： | LT3517EUF#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER AUTOMOTIVE 16-QFN |
| 标准包装： | 2,500 |
| 系列： | True Color PWM™ |
| 恒定电流： | 是 |
| 恒定电压： | 是 |
| 拓扑： | PWM，降压（降压），升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 250kHz ~ 2.5MHz |
| 电源电压： | 3 V ~ 30 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
LT3517
PIN FUNCTIONS
SW: Switch Pin. Minimize trace at this pin to reduce EMI.
V IN : Input Supply Pin. Must be locally bypassed.
SHDN : Shutdown Pin. Tie to 1.5V or higher to enable
device or 0.4V or less to disable device.
V REF : Reference Output Pin. This pin can supply up to
100μA.
RT : Switching Frequency Adjustment Pin. Set switching
frequency using a resistor to GND (see Typical Performance
Characteristics for values). For SYNC function, choose
the resistor to program a frequency 20% slower than the
SYNC pulse frequency. Do not leave this pin open.
SYNC: Frequency Synchronization Pin. Tie an external
clock signal here. R T resistor should be chosen to pro-
gram a switching frequency 20% slower than SYNC pulse
frequency. Synchronization (power switch turn-on) occurs
a fixed delay after the rising edge of SYNC. Tie the SYNC
pin to ground if this feature is not used.
SS: Soft-Start Pin. Place a soft-start capacitor here. Leave
the pin open if not in use.
PWM: Pulse Width Modulated Input Pin. Signal low turns
off channel, disables the main switch and makes the TG
pin high. Tie the PWM pin to V REF pin or SHDN pin if not
used. There is an equivalent 50k resistor from PWM pin
to ground internally.
CTRL: LED Current Adjustment Pin. Sets voltage across
sense resistor between ISP and ISN. Connect directly to
V REF for full-scale threshold of 100mV, or use signal values
between GND and 1V to modulate LED current. Tie the CTRL
pin to the V REF pin if not used.
VC: g m Error Amplifier Output Pin. Stabilize the loop with
an RC network or compensating C.
FB: Voltage Loop Feedback Pin. Works as overvoltage
protection for LED drivers. If FB is higher than 1V, the
main switch is turned off.
TGEN: Top Gate Enable Input Pin. Tie to 1.5V or higher
to enable the PMOS driver function. Tie the TGEN pin to
ground if TG function is not used. There is an equivalent
40k resistor from TGEN pin to ground internally.
ISN: Current Sense (–) Pin. The inverting input to the
current sense amplifier.
ISP: Current Sense (+) Pin. The noninverting input to the
current sense amplifier. Also serves as positive rail for
TG pin driver.
TG: Top Gate Driver Output. An inverted PWM sig-
nal drives series PMOS device between V ISP and
(V ISP – 7V). An internal 7V clamp protects the PMOS gate.
Leave TG unconnected if not used.
GND: Exposed Pad (QFN Package). Solder paddle directly
to ground plane.
3517fg
6
For more information www.linear.com/LT3517
相关PDF资料 |
PDF描述 |
|---|---|
| P51-2000-S-G-MD-4.5V-000-000 | SENSOR 2000PSI 1/8-27NPT .5-4.5V |
| P51-1500-S-Z-D-4.5V-000-000 | SENSOR 1500PSI 1/4-18NPT .5-4.5V |
| REC3-4815SRW/H6/A/SMD/CTRL-R | CONV DC/DC 3W 36-72VIN 15VOUT |
| REC5-2415DRWZ/H2/A/SMD/CTRL | CONV DC/DC 5W 9-36VIN +/-15VOUT |
| P51-1500-A-I-M12-4.5OVP-000-000 | SENSOR 1500PSI 7/16-20UNF 4.5V |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3517HFE#PBF | 功能描述:IC LED DRIVR AUTOMOTIVE 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:True Color PWM™ 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LT3517HFE#TRPBF | 功能描述:IC LED DRIVR AUTOMOTIVE 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:True Color PWM™ 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LT3517HFE-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Full-Featured LED Driver with 1.5A Switch Current |
| LT3517HFE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Full-Featured LED Driver with 1.5A Switch Current |
| LT3517HUF#PBF | 功能描述:IC LED DRIVER AUTOMOTIVE 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:True Color PWM™ 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
发布紧急采购，3分钟左右您将得到回复。