IS31BL3231-DLS2-TR ISSI, IS31BL3231-DLS2-TR Datasheet
IS31BL3231-DLS2-TR
Specifications of IS31BL3231-DLS2-TR
Related parts for IS31BL3231-DLS2-TR
IS31BL3231-DLS2-TR Summary of contents
Page 1
... LED forward voltage. IS31BL3231 provides low cost, space saving solution for driving LED. It also integrates thermal and short circuit protection function. IS31BL3231 is available in DFN-10 (3mm × 3mm). It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C. TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit (Torch Mode Lv1-227mA, Flash Mode 718mA) Integrated Silicon Solution, Inc. – ...
Page 2
... IS31BL3231 Figure 2 Typical Application Circuit (Torch Mode Lv1-50mA, Flash Mode 518mA) Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 11/28/2012 2 ...
Page 3
... IS31BL3231 PIN CONFIGURATION Package Pin Configuration (Top View) DFN-10 PIN DESCRIPTION No. Pin Description 1 VCC Power supply Positive input for external flying cap Negative input for external flying cap. Input pin to toggle operation between Flash Mode and 4 FLASH Torch Mode. ...
Page 4
... Industrial Range: -40°C to +85°C Order Part No. Package IS31BL3231-DLS2-TR DFN-10, Lead-free Copyright © 2012 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are ...
Page 5
... IS31BL3231 ABSOLUTE MAXIMUM RATINGS Supply voltage Voltage at EN pin Output current pulse (Flash Mode) Output current pulse (Torch Mode) Maximum junction temperature, T JMAX Storage temperature range, T STG Operating temperature range Note: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not implied ...
Page 6
... IS31BL3231 TYPICAL PERFORMANCE CHARACTERISTICS 250 200 150 100 50 Torch Mode I = 200mA LED V = 3.45V OUT Supply Voltage(V) Figure 3 Supply Voltage vs. Output Current (Torch Mode 3.6V CC Torch Mode I = 200mA LED EN Pin R = 0.22Ω FB 5V/Div V OUT 1V/Div I IN 500mA/Div Time (200µs/Div) ...
Page 7
... IS31BL3231 100 Torch Mode I = 200mA LED Supply Voltage(V) Figure 9 Supply Voltage vs. Efficiency (Torch Mode) Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 11/28/2012 100 Flash Mode I = 700mA LED Supply Voltage(V) Figure 10 Supply Voltage vs ...
Page 8
... IS31BL3231 FUNCTIONAL BLOCK DIAGRAM Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 11/28/2012 8 ...
Page 9
... Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 11/28/2012 TORCH MODE By pulling the FLASH pin to low, IS31BL3231 operates in the Torch Mode. The V Count Control (PCC wire) serial interface. The interface records rising edges of the EN pin and decodes them into 8 different states. The 8 voltage level settings available are indicated in Table 1 ...
Page 10
... IS31BL3231 CLASSIFICATION REFLOW PROFILES Profile Feature Preheat & Soak Temperature min (Tsmin) Temperature max (Tsmax) Time (Tsmin to Tsmax) (ts) Average ramp-up rate (Tsmax to Tp) Liquidous temperature (TL) Time at liquidous (tL) Peak package body temperature (Tp)* Time (tp)** within 5°C of the specified classification temperature (Tc) Average ramp-down rate (Tp to Tsmax) Time 25° ...
Page 11
... IS31BL3231 PACKAGE INFORMATION DFN-10 Note: All dimensions in millimeters unless otherwise stated. Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 11/28/2012 11 ...