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参数资料
| 型号： | NCL30105GEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/22页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL 80V 350 FOR LED DRV |
| 设计资源： | NCL30105GEVB Gerber Files NCL30105GEVB BOM NCL30105GEVB Schematic |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 350mA |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 60V |
| 已供物品： | 板 |
| 已用 IC / 零件： | NCL30105 |
| 其它名称： | NCL30105GEVBOS |
NCL30105
VCC
V toff(open)
Vcc
UVLO
Von = V CC(on)
Voff = V CC(off)
1 = reset
ref
ok = 1, else 0
1 = reset
t start(delay)
NC
toff
DIM
V DIM(open)
R DIM
SET
Q
set current
high
= rst
toff
generator
start
pulse
SET
Q
Q
V SSTART(open)
I SSTART
S
SSTART
R
S
Q
Q
R
OVRI
Q
/ I ratio
GND
?
N fault
CS
V ILIM(fault)
t LEB(fault)
t LEB
V ILIM
t on >
t on(MAX)
Vcc
OVRI
down
up
count to N fault
DRV
Figure 2. Internal Circuit Architecture
Table 1. PIN FUNCTION DESCRIPTION
Pin
Number
1
2
3
4
5
6
7
8
Pin Name
toff
DIM
VCC
CS
DRV
GND
SSTART
NC
Function
Adjusts the Off Time
Duration
Dimming Input
Supplies the Controller
Current Sense Input
Driver Output
?
Soft ? start / Peak Current
Adjustment
Non ? connected Pin
Pin Description
A resistor to ground sets the off time duration.
This pin is used for PWM dimming or to enable/disable the controller.
An external auxiliary voltage connected to this pin supplies the controller.
This pin monitors the peak current. When the peak current reaches the
internal threshold, the DRV is turned off.
The output of the driver is connected to an external MOSFET gate.
The controller ground.
A capacitor connected to this pin sets the soft ? start duration. The voltage
of this pin adjusts the peak current set point for analog dimming.
Non ? connected pin
http://onsemi.com
3
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