PDF《其朋半导体股份有限公司》

其朋半导体股份有限公司 (Preliminary) CDT3460 CHIP DESIGN TECHNOLOGY INC.

VER. 1.0 October 6,

2004 z Features ? 单灯 LED 模拟烛灯闪烁 ? 内建振荡电阻 z Pad Description NO. PIN_NAME I/O TYPE FUNCTION

1 VDD P 电源正端输入

2 OSCI I 内建振荡

3 VSS P 电源负端输入

4 TEST B 测试 PIN

5 LOUT O Source LED 输出, 正输出接 NPN 电晶体 z Block Diagram Input port VDD TEST VSS CNT END Detector Duty OSC Output port Address Decoder ROM1 ROM2 LOUT 其朋半导体股份有限公司 (Preliminary) CDT3460 CHIP DESIGN TECHNOLOGY INC. VER. 1.0 October 6,

2004 z Absolute Maximum Ratings Symbol Parameter Min. Max. Units VDD DC Supply Voltage 2.0 5.0 V VIN Input Voltage -0.3 VDD+0.3 V PD Power dissipation 1.5 W TA Operating Temperature

0 70 ℃ TS Storage Temperature -55

150 ℃ *Note:Stresses above those listed may cause permanent damage to the devices. z Recommended Operating Conditions Symbol Parameter Condition Min. Typ. Max. Units VDD Supply Voltage 1.8

3 5 V VIH Input High Voltage 0.7 VDD VDD+0.3 V VIL Input Low Voltage -0.3 0.3 VDD V z Electrical Characteristics ( Ta = 25℃,VDD = VB = 3V) Symbol Parameter Condition Min. Typ. Max. Units IDD1 Operating Current @VDD = 3V, no load

100 μA VLB Low battery Voltage V FOSC Frequency

35 KHz IOL Sink Current of low level at VOL=1V

35 mA

346002 LED VSS VDD (CDT3460-02)

1 2

3 T0-92 包装

346002 LED VSS VDD

1 2

3 346002 LED VSS VDD

1 2

3 其朋半导体股份有限公司 (Preliminary) CDT3460 CHIP DESIGN TECHNOLOGY INC. VER. 1.0 October 6,

2004 z Functional Description 此模拟烛灯IC 可模拟真实烛灯忽明忽暗的闪烁,可模拟的闪烁动作如下;

(1). 在闪烁周期固定下,共计有17 种Duty 可变化;

为0/16 Duty(即全灭)、 1/16 Duty、 2/16 Duty、 15/16 Duty、 16/16 Duty(即全?)(2). 可将17 种Duty 变化的闪烁动作,组合成最多63 个区段,而在单一区段内, 所指定的Duty 闪烁,最多可闪烁32 次.zApplication Circuit VDD VSS OSCI CDT3460 R1 R2

104 A : 0,

0 B :

1000 ,

990 CHIP SIZE :

1080 *

1070 u LOUT TEST (160,870) (115,110) (330,110) (565,110) (885,110)