Purchase ML4811, In-stock ML4811 From SeekIC.
Part Number: ML4811
Description: The ML4810 and ML4811 High Frequency PWM Controllers are optimized for use in Switch Mode Power Supply...
- Table of contents:
ML4811
-
Suppliers
DataSheet
General Description
ML4811 General Description
The ML4810 and ML4811 High Frequency PWM Controllers are optimized for use in Switch Mode Power Supply designs running at frequencies to 1MHz. The ML4810/11 contain a unique overload protection circuit which helps to limit stress on the output devices and reliably performs a soft-start reset. These controllers are designed to work in either voltage or current mode and provide for input voltage feed forward.
A 1.1V threshold current limit comparator provides a cycle-by-cycle current limit. An integrating circuit "counts" the number of times the 1.1V limit was reached. A soft-start cycle is initiated if the cycle-by-cycle current limit is repeatedly activated. A reset delay function is provided on the ML4811.
These controllers are similar to the UC1825 controller, however these controllers include many features not found on the 1825. These features are set in Italics.
ML4811 Maximum Ratings
Supply Voltage (Pins 18, 16) ...................................... 25V
Output Current, Source or Sink (Pins 14, 17)
DC ............................................................................. 0.5A
Pulse (0.5ms) ............................................................. 2.0A
Analog Inputs
(Pins INV, NI, SOFT START) ............................. 0.3V to 7V
(Pins 9, 10, 11, 12, 20) ................................... 0.3V to 6V
Clock Output Current (Pins 5) ....................................5mA
Error Amplifier Output Current (Pin 3) ......................... 5mA
Junction Temperature .............................................. 150°C
Storage Temperature Range .................... 65°C to 150°C
Lead Temperature (Soldering 10 sec.) .................... 260°C
Thermal Resistance (JA)
Plastic DIP ............................................................. 65°C/W
Plastic SOIC .......................................................... 65°C/W
Output Current, Source or Sink (Pins 14, 17)
DC ............................................................................. 0.5A
Pulse (0.5ms) ............................................................. 2.0A
Analog Inputs
(Pins INV, NI, SOFT START) ............................. 0.3V to 7V
(Pins 9, 10, 11, 12, 20) ................................... 0.3V to 6V
Clock Output Current (Pins 5) ....................................5mA
Error Amplifier Output Current (Pin 3) ......................... 5mA
Junction Temperature .............................................. 150°C
Storage Temperature Range .................... 65°C to 150°C
Lead Temperature (Soldering 10 sec.) .................... 260°C
Thermal Resistance (JA)
Plastic DIP ............................................................. 65°C/W
Plastic SOIC .......................................................... 65°C/W
ML4811 Features
Integrating Soft Start Reset
High current (2A peak) dual totem pole outputs
Practical operation to 1MHz (fOSC)
5.1V ±2% trimmed bandgap reference
Under voltage lockout with 7V hysteresis
Soft Start Reset Delay (ML4811)
Oscillator synchronization function (ML4811)
Soft Start latch ensures full soft start cycle
Outputs pull low for undervoltage lockout
Accurately controlled oscillator ramp discharge current
All timing currents "slaved" to RT for precise control
High current (2A peak) dual totem pole outputs
Practical operation to 1MHz (fOSC)
5.1V ±2% trimmed bandgap reference
Under voltage lockout with 7V hysteresis
Soft Start Reset Delay (ML4811)
Oscillator synchronization function (ML4811)
Soft Start latch ensures full soft start cycle
Outputs pull low for undervoltage lockout
Accurately controlled oscillator ramp discharge current
All timing currents "slaved" to RT for precise control
ML4811 Connection Diagram
ML4811CP
PDF/DataSheet Download
- Datasheet: ML4811CP
- File Size: 169031 KB
- Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
- Click here to Download
- ·ML40123N
- MITSUBISHI [Mitsubishi Electric Semiconductor]
- AIGaAs LASER DIODES
- 108913 KB
- ·ML40126N
- MITSUBISHI [Mitsubishi Electric Semiconductor]
- FOR OPTICAL INFORMATION SYSTEMS
- 52625 KB
- ·ML4016N
- MITSUBISHI [Mitsubishi Electric Semiconductor]
- MITSUCISHI LASER DIODES
- 211531 KB
- ·ML406
- ETC [ETC]
- Silicon controlled rectifier (SCR) in To-92 package
- 329651 KB
- ·ML4411
- MICRO-LINEAR [Micro Linear Corporation]
- Sensorless Spindle Motor Controller
- 303623 KB
- ·ML4411ACS
- MICRO-LINEAR [Micro Linear Corporation]
- Sensorless Spindle Motor Controller
- 303623 KB
- ·ML4411CS
- MICRO-LINEAR [Micro Linear Corporation]
- Sensorless Spindle Motor Controller
- 303623 KB
- ·ML44126N
- MITSUBISHI [Mitsubishi Electric Semiconductor]
- FOR OPTICAL INFORMATION SYSTEMS
- 52625 KB
ML4811 Relative Products
ML4810
The ML4810 and ML4811 High Frequency PWM Controllers are optimized for use in Switch Mode Power Supply designs running at frequencies to 1MHz. The ML4810/11 contain a unique overload protection circuit which helps to limit stress on the output devices and re...
ML4805
The ML4805 is a controller for power factor corrected, switched mode power supplies. Similar to the ML4801, the ML4805 may be used for voltage mode operation. Key features of this combined PFC and PWM controller are low start-up and operating currents. Power...
ML4804
The ML4804 is a controller for power factor corrected, switched mode power supplies. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supp...
ML4803c
The ML4803c is a space-saving controller for power factor corrected, switched mode power supplies that offers very low start-up and operating currents. Power Factor Correction (PFC) offers the use of smaller, lower cost bulk capacitors, reduces power line lo...
ML4803
The ML4803 is a space-saving controller for power factor corrected, switched mode power supplies that offers very low start-up and operating currents.Power Factor Correction (PFC) offers the use of smaller, lower cost bulk capacitors, reduces power line load...
ML4802CS
The ML4802CS is one member of the ML4802 family which is designed as the PFC/PWM controller for power factor corrected, switched mode power supplies that offers Green Mode operation and reduced start-up and operating currents. This ML4802CS offers the use of...
Hotspot Suppliers Product
88C4200-BN-LEE
Price: 8-12 USD
88C4200-BN-LEE, QFP, Marvell Technology Group Ltd, Integrated Circuits
IR2104
Price: 0.4-0.6 USD
half-bridge driver, SOP, -0.3 to 625V
TX2-4.5V
Price: 0.6-0.8 USD
Low Signal Relays, 2 A capacity relay, high surge voltage, high breakdown voltage, DIP
MDP8N60
Price: 1-2 USD
N-Channel MOSFET 600V, 8A, 0.95Ω
EPM7064SLC44-10N
Price: 2-2.5 USD
Programmable Logic Device Family, PLCC, High-performance, 5.0-V in-system programmability, -25 to ...
EPAG451ELL820MM30S
Price: 0.5-1.5 USD
200 to 450Vdc, Downsized, 105C
W56932DYX
Price: 4-5 USD
W56932DYX, QFN, Winbond
PCF7935AS
Price: 1-5 USD
Security Transponder, SECT, 128 bit Secret Key, Leadless stick shaped plastic, SMD
12F629
Price: 0.5-0.7 USD
8-Pin FLASH-Based, 8-Bit CMOS Microcontroller, SOP8, 8-level deep hardware stack, 20MHz
TMS34010FNL-50
Price: 15-20 USD
advanced, high-performance CMOS, 32-bit microprocessor, PLCC68, -0.3 to 20V, high-level language s...
SP233ACT
Price: 1.5-2 USD
Enhanced RS-232 Line Driver/Receiver, SOP, Enhanced ESD Protection, 2kV, Enhanced ESD Protection
TMS320LF2406APZA
Price: 6-8 USD
digital signal processor controller, 16 BIT, 100-LQFP, 3.3V, ±20 mA
