其朋半導體股份有限公司 Chip Design Technology 91 年 3 月 1 日 CDT5430 P. 1 VOLTAGE DETECTOR IC ■ THE CDT5430 SERIES 1. 2. 3. 4. Non-adjusting voltage detector by using CMOS Technology. 1.5 – 6.0VDC operating range. The detecting voltage is fixed internally, and can be changed by new masking. Composed of Standard Voltage Source, a Comparator, a Hysteresis Circuit, And an Output Driver. 5. Output Structure is an N-ch Open-Drain Output. 6. Normally LED is OFF. It will turn on when voltage is low. 7. With ±0.1V Voltage Compensation Design by Pad Bonding Option ■ FEATURES ■ PACKAGE z z Chip Form T0-92 SOT-89 z Low Power Consumption Low Temperature Coefficient Built-in Hysteresis Characteristic Built-in High-Stability Reference Source ■ APPLICATIONS z z z Battery Checker z Level Selector z Power Failure Detector z Micro Computer Reset z Battery Backup of Memories ■ ■ z PRODUCTS LIST Part No. CDT5430-01 CDT5430-02 CDT5430-03 CDT5430-04 CDT5430-05 Tolerance : ±3.5% Max. Hys.Width Mark Min. Typ. 2.22V 2.45V 2.300V 2.545V 2.38V 2.64V 0.115V 0.128V A2300 A2545 PIN ARRANGEMENT A. Chip form B. T0-92 (Front View) + LED VDD JP1 VSS JP2 CDT5430 CHIP SIZE:1080 x 950μM IC substrate to VSS C. SOT-89 (Front View) 2545 2545 (IC=CDT5430-3) C5430 LED 1 2 3 LED VDD VSS (Bottom View) LED VDD ■ z (IC=CDT5430-3) 1 LED 2 3 VSS VDD (Bottom View) VSS Voltage Compensation LED JP1 + VDD = －0.1V JP2 + VSS = ＋0.1V CDT5430 --- 1 VSS VDD CDT5430 P. 2 VOLTAGE DETECTOR ■ CDT5430 規格 Part No. Tolerance : ±3.5% Min. Typ. Max. Hys.Width Mark CDT5430-01 ■ µM X Y LED 139 713 CDT5430-02 2.22V 2.300V 2.38V 0.115V A2300 VDD 339 713 CDT5430-03 2.45V 2.545V 2.64V 0.128V A2545 JP1 499 713 CDT5430-04 VSS 683 713 CDT5430-05 JP2 843 713 CDT5430 打線方法 (注意: IC 底座接 VSS) A. CDT5430-02 偵測電壓 = 2.2V + LED VDD JP1 ● VSS JP2 ● ● LED CDT5430-02 VDD JP1 ● VSS JP2 + LED C5430 LED ● 偵測電壓 = 2.4V + LED C5430 ● C5430 ● 偵測電壓 = 2.3V ● LED CDT5430-02 VDD JP1 VSS JP2 CDT5430-02 CHIP SIZE:1080 x 950μM CHIP SIZE:1080 x 950μM CHIP SIZE:1080 x 950μM IC substrate to VSS IC substrate to VSS IC substrate to VSS B. CDT5430-03 偵測電壓 = 2.45V + LED VDD JP1 ● VSS JP2 CDT5430-03 ● LED ● VDD JP1 ● VSS JP2 + LED C5430 ● 偵測電壓 = 2.65V + LED C5430 LED ● C5430 ● 偵測電壓 = 2.545V ● LED VDD JP1 VSS JP2 CDT5430-03 CDT5430-03 CHIP SIZE:1080 x 950μM CHIP SIZE:1080 x 950μM CHIP SIZE:1080 x 950μM IC substrate to VSS IC substrate to VSS IC substrate to VSS CDT5430 --- 2 CDT5430 P. 3 VOLTAGE DETECTOR CDT5430 應用 A. 功能 : 電源電壓(VDD)低於所訂定之電壓偵測點時 LED 即亮。 B. 應用線路圖: ■ CDT5430-3 偵測 2.545V 時 ■ CDT5430-3 調準位 12VDC 3VDC R1 LED LED R R2 3 2 1 VSS VDD LED CDT5430-03 3 2 1 VSS VDD LED CDT5430-03 R 可調視 LED 亮度 範例: 參考用 R1 X 100K 150K 200K 220K 270K 300K 390K 470K 520K 540K 560K 680K 820K R2 X 1M 1M 1M 1M 1M 1M 1M 1M 1M 1M 1M 1M 1M CDT5430 --- 3 偵測電壓 2.57V 3.04V 3.27V 3.49V 3.58V 3.82V 3.96V 4.37V 4.81V 4.97V 5.06V 5.10V 5.70V 6.40V STANDBY 2.5μA 6.5μA 6.0μA 5.1μA 4.7μA 4.2μA 3.5μA 3.1μA 3.1μA 3.1μA 3.1μA 3.1μA 3.1μA 3.1μA