AP3608EM-G1 Diodes Incorporated

PART OBSOLETE - NO ALTERNATE PART AP3608E EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH Description Pin Assignments The AP3608E is an eight-channel constant current sink with current match used for LED driver. It uses an external resistor to set the (Top View) current for eight LED strings with an accuracy of 1.5%. The full scale LED current can be adjusted from 10mA to 100mA for each channel. Pin 1 Dot by Marking The LED light can be adjusted by PWM dimming function. CH2 CH3 CH4 PGND CH5 CH6 24 23 22 21 20 19 The device can keep working when LED opens without damage. It features under voltage lockout protection and over temperature CH1 1 18 CH7 protection. NC 2 17 CH8 NC 3 16 EN Exposed The AP3608E has four interface terminals (FB, SDB, FBX and SDBX Pad pins). The first two terminals allow the device to work with a DC/DC NC 4 15 VCC converter to drive LED arrays for good performance. And the other AGND PWM 5 14 two enable the device to be connected in parallel. NC 13 NC 6 The AP3608E is available in QFN-4 4-24, TSSOP-20(EDP) and 7 8 9 10 11 12 SOIC-20 packages. NC FBX ISET FB SDB SDBX Features QFN-44-24 Input Voltage Range: 4.2V to 5.5V Typical Output Current: 480mA (60mA/1V per Channel) (Top View) Maximum Output Current: 800mA (100mA/1.5V per Channel) Current Match Accuracy: 1.5% CH1 1 EN 20 PWM Dimming Control Open LED Self-check and Protection VCC CH2 2 19 Under Voltage Lockout Protection AGND CH3 3 18 Over Temperature Protection CH4 4 SDBX 17 FBX and SDBX Pins Enable Parallel Application SDB PGND 5 16 PGND 6 FB 15 CH5 ISET 7 14 CH6 FBX 8 13 NC CH7 9 12 PWM CH8 10 11 Note: AGND must be quiet and directly connected to total C IN TSSOP-20(EDP)/SOIC-20 Applications Notebook LCD Display Modules LCD Monitor LCD TV 1 of 14 AP3608E December 2018 Diodes Incorporated www.diodes.com Document number: DS41586 Rev. 3 - 4 OBSOLETE PART DISCONTINUED PART OBSOLETE - NO ALTERNATE PART AP3608E Typical Applications Circuit 2 of 14 AP3608E December 2018 Diodes Incorporated www.diodes.com Document number: DS41586 Rev. 3 - 4 OBSOLETE PART DISCONTINUED