ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845 Data Sheet February 23, 2012 FN9124.11 Improved Industry Standard Single-Ended Features Current Mode PWM Controller 1A MOSFET Gate Driver The ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, 60A Start-up Current, 100A Maximum ISL6845 family of adjustable frequency, low power, pulse 25ns Propagation Delay Current Sense to Output width modulating (PWM) current mode controllers is designed for a wide range of power conversion applications Fast Transient Response with Peak Current Mode Control including boost, flyback, and isolated output configurations. Adjustable Switching Frequency to 2MHz Peak current mode control effectively handles power transients and provides inherent overcurrent protection. 20ns Rise and Fall Times with 1nF Output Load This advanced BiCMOS design is pin compatible with the Trimmed Timing Capacitor Discharge Current for Accurate industry standard 384x family of controllers and offers Deadtime/Maximum Duty Cycle Control significantly improved performance. Features include low High Bandwidth Error Amplifier operating current, 60A start-up current, adjustable Tight Tolerance Voltage Reference Over Line, Load, and operating frequency to 2MHz, and high peak current drive Temperature capability with 20ns rise and fall times. Tight Tolerance Current Limit Threshold PART NUMBER RISING UVLO (V) MAX. DUTY CYCLE (%) Pb-Free Available (RoHS Compliant) ISL6840 7.0 100 ISL6841 7.0 50 Applications ISL6842 14.4 100 Telecom and Datacom Power ISL6843 8.4 100 Wireless Base Station Power ISL6844 14.4 50 File Server Power ISL6845 8.4 50 Industrial Power Systems PC Power Supplies Pinouts Isolated Buck and Flyback Regulators ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845 (8 LD SOIC, MSOP) Boost Regulators TOP VIEW COMP 1 8 VREF FB 2 7 VDD 3 OUT CS 6 RTCT 4 5 GND ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845 (8 LD DFN) TOP VIEW COMP VREF 1 8 FB 2 7 VDD CS OUT 3 6 RTCT 4 5 GND CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Copyright Intersil Americas Inc. 2004, 2005, 2007, 2008, 2012. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners.ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845 Ordering Information PART NUMBER TEMP RANGE (Note 4) PART MARKING (C) PACKAGE PKG. DWG. ISL6840IBZ (Notes 1, 3) 6840 IBZ -40 to +105 8 Ld SOIC (Pb-free) M8.15 ISL6840IRZ-T (Notes 2, 3) 40Z -40 to +105 8 Ld 2x3 DFN (Pb-free) L8.2x3 ISL6840IUZ (Notes 1, 3) 6840Z -40 to +105 8 Ld MSOP (Pb-free) M8.118 ISL6841IB-T ISL 6841IB -40 to +105 8 Ld SOIC M8.15 ISL6841IBZ (Notes 1, 3) 6841 IBZ -40 to +105 8 Ld SOIC (Pb-free) M8.15 ISL6841IRZ-T (Notes 2, 3) 41Z -40 to +105 8 Ld 2x3 DFN (Pb-free) L8.2x3 ISL6841IUZ (Notes 1, 3) 6841Z -40 to +105 8 Ld MSOP (Pb-free) M8.118 ISL6842IBZ (Notes 1, 3) 6842 IBZ -40 to +105 8 Ld SOIC (Pb-free) M8.15 ISL6842IRZ-T (Notes 2, 3) 42Z -40 to +105 8 Ld 2x3 DFN (Pb-free) L8.2x3 ISL6842IUZ (Notes 1, 3) 6842Z -40 to +105 8 Ld MSOP (Pb-free) M8.118 ISL6843CBZ (Notes 1, 3) 6843 CBZ 0 to +70 8 Ld SOIC (Pb-free) M8.15 ISL6843IBZ (Notes 1, 3) 6843 IBZ -40 to +105 8 Ld SOIC (Pb-free) M8.15 ISL6843IRZ-T (Notes 2, 3) 43Z -40 to +105 8 Ld 2x3 DFN (Pb-free) L8.2x3 ISL6843IU-T 6843 -40 to +105 8 Ld MSOP M8.118 ISL6843IUZ (Notes 1, 3) 6843Z -40 to +105 8 Ld MSOP (Pb-free) M8.118 ISL6844IBZ (Notes 1, 3) 6844 IBZ -40 to +105 8 Ld SOIC (Pb-free) M8.15 ISL6844IRZ-T (Notes 2, 3) 44Z -40 to +105 8 Ld 2x3 DFN (Pb-free) L8.2x3 ISL6844IUZ (Notes 1, 3) 6844Z -40 to +105 8 Ld MSOP (Pb-free) M8.118 ISL6845IBZ (Notes 1, 3) 6845 IBZ -40 to +105 8 Ld SOIC (Pb-free) M8.15 ISL6845IRZ-T (Notes 2, 3) 45Z -40 to +105 8 Ld 2x3 DFN (Pb-free) L8.2x3 ISL6845IUZ (Notes 1, 3) 6845Z -40 to +105 8 Ld MSOP (Pb-free) M8.118 ISL6841EVAL3Z Evaluation Board ISL6844EVAL1Z Evaluation Board ISL6844EVAL2Z Evaluation Board ISL6844EVAL3Z Evaluation Board NOTES: 1. Add -T* suffix for tape and reel. Please refer to TB347 for details on reel specifications. 2. Contact Factory for Availability. 3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 4. For Moisture Sensitivity Level (MSL), please see device information page for ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845.For more information on MSL please see tech brief TB363. FN9124.11 2 February 23, 2012