Kingbor科技有限公司
TEL : ( 86 ) 0755-26508846传真: ( 86 ) 0755-26509052
KB1365
典型性能特性
(V
IN
= V
暗淡
= 12V ,C
VCC
= 1μF ,R
SENSE
= 0.5
注意)。
连接IN和CSN之间。在T典型值
A
= + 25 ° C,除非另有
PWM调光的AT 200Hz的
( 1 %占空比)
V
IN
= 12V , L = 47μH ,
1 LED
V
暗淡
2V/div
PWM调光的扩展
(50 %占空比)
V
IN
= 24V, L = 33μH ,
4个LED
V
暗淡
2V/div
PWM调光的扩展
(50 %占空比)
V
IN
= 12V , L = 47μH ,
1 LED
V
暗淡
2V/div
0V
I
LED
200mA/div
0A
0V
I
LED
200mA/div
0A
0V
I
LED
200mA/div
0A
10µs/div
1µs/div
4µs/div
PWM调光的AT 20kHz的
(10 %占空比)
V
IN
= 24V , L = 47μH ,
4个LED
V
暗淡
2V/div
0V
I
LED
200mA/div
0A
PWM调光的AT 20kHz的
( 90 %占空比)
LED电流变化FROM SET CURRENT ( % )
V
IN
= 24V, L = 33μH ,
4个LED
V
暗淡
2V/div
0V
I
LED
200mA/div
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
I
LED
变化与温度的关系
I
LED (标称)
= 400毫安
L = 100
µH
V
IN
= 24V
V
IN
= 12V
0A
V
暗淡
= 0V
-2.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
温度(℃)
10µs/div
10µs/div
REV : 1.0
6