Details, datasheet, quote on part number: UCC3808-2
PartUCC3808-2
CategorySemiconductors => Power Management => Offline and Isolated DC/DC Controllers and Converters => PWM and Resonant Controller
Part familyUCC3808-2 Low Power Current Mode Push-Pull PWM
TitleCurrent Mode PWM Controllers
DescriptionLow Power Current Mode Push-Pull PWM 8-SOIC 0 to 70
CompanyTexas Instruments, Inc.
StatusACTIVE
ROHSY
SampleYes
DatasheetDownload UCC3808-2 datasheet
Cross ref.Similar parts: UCC2808D-1, UCC3808D-1, MIC3808BM, MIC3809BM, MIC3809YM, IPS201BC-D-G-LF, IPS201BC-SO-G-LF, IPS201BC-SO-G-LF-TR, IPS201BI-D-G-LF, IPS201BI-SO-G-LF
Quote
Find where to buy
 
Specifications 
Operating Temperature Range(C)0 to 70
Frequency(Max)(kHz)1000
RatingCatalog
Approx. Price (US$)0.99 | 1ku
FeaturesError Amplifier,Multi-topology,Soft Start
UVLO Thresholds On/Off(V)4.3/4.1
Duty Cycle(Max)(%)49
TopologyPush-Pull
Package GroupPDIP,SOIC
Control MethodCurrent
Gate Drive(Typ)(A)1
Vin(Min)(V)4.1
Vin(Max)(V)15
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
8DSOICR-PDSO-G75TUBE3808-2 3.914.91.581.27
Application notes
• Current Doubler Rectifier Offers Ripple Current Cancellation | Doc

 

Features, Applications

Configuration 130-A Typical Starting Current 1-mA Typical Run Current Operation to 1-MHz Internal Soft Start On Chip Error Amplifier With 2-MHz Gain Bandwidth Product On Chip VDD Clamping Output Drive Stages Capable Of 500-mA Peak Source Current, 1-A Peak Sink Current

OR N PACKAGE (TOP VIEW) COMP CS RC VDD OUTA OUTB GND
PW PACKAGE (TOP VIEW) OUTA VDD COMP FB OUTB GND RC CS
description

The is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC3808 contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count. The UCC3808 dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%. (continued)

FB 2 COMP 3 8 OVERCURRENT COMPARATOR V 7 VDD 0.5 V SOFT START VOLTAGE REFERENCE VDD R 6 OUTB PWM COMPARATOR PWM LATCH OSCILLATOR OUTA 22 k PEAK CURRENT COMPARATOR 14 V VDD

Note: Pinout shown is for SOIC and PDIP packages. TSSOP pinout is different.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

The UCC3808 family offers a variety of package temperature range options, and choice of undervoltage lockout levels. The family has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds are shown in the table below. Table 1.

Part Number UCCx8081 UCCx8082 Turn on Threshold 4.3 V ORDERING INFORMATION Packaged Devices to 70C UVLO Option V/8.3 V SOIC (D) UCC2808D2 UCC3808D1 PDIP (N) UCC2808N2 UCC3808N1 TSSOP (PW) UCC2808PW2 UCC3808PW1 Turn off Threshold 4.1 V

D (SOIC8) and PW (TSSOP8) packages are available taped and reeled. Add TR suffix to device type (e.g. UCC3808DTR1) to order quantities of 2500 devices per reel for SOIC-8 and 2000 devices per reel for TSSOP-8.

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

Supply voltage (IDD 10 mA). 15 V Supply current. 20 mA OUTA/OUTB source current (peak). 0.5 A OUTA/OUTB sink current (peak). 1.0 A Analog inputs (FB, CS). VDD+0.3 V, not to exceed 6 V Power dissipation 25C (N Package). 1 W Power dissipation 25C (D Package). 650 mW Power dissipation = 25C (PW Package). 400 mW Storage temperature, Tstg. to 150C Junction temperature, TJ. to 150C Lead temperature (soldering, 10 sec.). 300C

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 conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Currents are positive into, negative out of the specified terminal. Consult Packaging Section of the Power Supply Control Data Book (TI Literature Number SLUD003) for thermal limitations and considerations of packages.

to 125C for the UCC1808x, VDD 10 V (See Note 1 F capacitor from VDD to GND, = 330 pF, TA = TJ, (unless otherwise specified)

PARAMETER Oscillator frequency Oscillator amplitude/VDD See Note 1 TEST CONDITIONS MIN 175 0.44 TYP 194 0.5 MAX 213 0.56 UNITS kHz V/V

PARAMETER Input voltage Input bias current Open loop voltage gain COMP sink current COMP source current 1.3 V, COMP 1 V COMP 3.5 V COMP 2 V TEST CONDITIONS MIN TYP 2 MAX 2.05 1 UNITS dB mA

PARAMETER Maximum duty cycle Minimum duty cycle COMP 0 V TEST CONDITIONS Measured at OUTA or OUTB MIN 48% TYP 49% MAX 50% 0% UNITS

PARAMETER Gain Maximum input signal CS to output delay CS source current Over current threshold COMP to CS offset 0 V NOTES: 1. Measured at RC. Signal amplitude tracks VDD. DV COMP V, 2. Gain is defined by: CS 3. Parameter measured at trip point of latch with 0V. 4. Start threshold and zener shunt threshold track one another. 5. For UCCx8081, set VDD above the start threshold before setting V. 6. Does not include current in the external oscillator network. See Note 2 COMP 5 V, COMP 3.5 V, See Note 3 CS from 600 mV TEST CONDITIONS MIN 1.9 0.45 TYP 0.5 100 MAX 0.55 200 UNITS V/V nA V


 

Some Part number from the same manufacture Texas Instruments, Inc.
UCC38083 Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083D ti UCC38083, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083DR Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083DR ti UCC38083, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083P Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083P ti UCC38083, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083PW Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083PW ti UCC38083, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083PWR Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38083PWR ti UCC38083, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084 Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084D ti UCC38084, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084DR Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084DR ti UCC38084, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084P Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084P ti UCC38084, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084PW Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084PW ti UCC38084, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084PWR Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38084PWR ti UCC38084, Current Mode Push-pull PWM With Programmable Slope Compensation
UCC38085 Current Mode Push-pull PWM With Programmable Slope Compensation
Same catergory

LM2588 : LM2588 - Simple Switcher 5A Flyback Regulator With Shutdown, Package: to 263, Pin Nb=7.

LM3702 : Supervisory Function. LM3702 - Microprocessor Supervisory Circuits With Low Line Output And Manual Reset, Package: Microsmd, Pin Nb=9.

LT1763 : LT1763 Series, 500mA, Low Noise, LDO Micropower Regulators. Low Noise: to 100kHz) Output Current: 500mA Low Quiescent Current: 30A Wide Input Voltage Range: to 20V Low Dropout Voltage: 300mV Very Low Shutdown Current: 1A No Protection Diodes Needed Fixed Output Voltages: 3.3V, 5V Adjustable Output from to 20V Stable with 3.3F Output Capacitor Stable with Aluminum, Tantalum or Ceramic Capacitors Reverse Battery.

MDC3105LT1 : Inductive Load Driver. Inductive Load Driver, 6.6V Clamp Typ, Package: SOT-23 (TO-236), Pins=3.

MSK3001 : Three Phase Bridge MOSFET Power Module. THREE PHASE BRIDGE MOSFET POWER MODULE 4707 Dey Road Liverpool, N.Y. 13088 Pin Compatible with IRFT001 P and N Channel MOSFETs for Ease of Drive Isolated Package for Direct Heat Sinking, Excellent Thermal Conductivity Avalanche Rated Devices Interfaces Directly with Most Brushless Motor Drive IC's 100 Volt, 5 Amp Full Three Phase Bridge at 25C The MSK is a three.

NE57600 : NE57600; One-cell Lithium-ion Battery Protection With Over/undercharge And Overcurrent Protection;; Package: SOT-26A (SO6).

NE57810 : DDR Bus Termination Regulator. NE57810; Advanced DDR Memory Termination Power With External Reference In;; Package: SOT756 (SPAK-5).

PIC7513thruPIC7519 : High Current. Hybrid Switching Regulator.

PJ324 : . he PJ324 series are low-cost , quad operational amplifiers with true differential inputs. These have several distinct advantage over standard operational amplifier types in single supply applications. The quad amplifiers can operate at supply voltages as low or as high as 32V with very low quiescent currents and eliminat the necessity for external biasing.

PT6341 : Non-Isolated DC-DC Converters. 6A Output Current Input Voltage Range: V 90% Efficiency Adjustable Output Voltage Standby Function Short Circuit Protection Small Footprint (0.61 in2) Solderable Copper Case 8.8 106 Hours MTBF The PT6340 ExcaliburTM power modules are a series of high performance Integrated Switching Regulators (ISRs), housed in a thermally efficient solderable copper.

R1160Nxx1x : Low Voltage Output 3Mode 200mA LDO.

TPS3809J25DBVR : ti TPS3809J25, 3-Pin Supply Voltage Supervisor. 3-Pin SOT-23 Package Supply Current 9 A (Typical) Precision Supply Voltage Monitor 5 V Power-On Reset Generator With Fixed Delay Time 200 ms Pin-For-Pin Compatible With MAX 809 Temperature Range. to 85C The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

UCC15701J : Voltage Mode. ti UCC15701, Advanced Voltage Mode Pulse Width Modulator.

VRE3025 : Output (V) = +2.5 ;; Initial Error (mV) = 0.2, 0.4, 0.5 ;; Temp Error (ppm/oC) = 0.6, 1.0, 2.0 ;; Noise (µVpp) = 1.5 ;; Package = DIP8, SMT8 ;; Feature = +10V Supply.

XC651ASeries : DCDC / VD Combined Independent Power Supply 0.9V Low Operating Voltage.

AAT4651 : AAT4651 | 5V/3V PC Card Power Switch The AAT4651 SmartSwitch is a single channel PC card (PCMCIA) power switch. It is used to select between two different voltage inputs, each between 2.7V and 5.5V. An internal switch powers the circuitry from whichever input voltage is higher. The device's output, VCC, is slew rate controlled and current limited,.

TPS65054 : The TPS6505x are integrated Power Management ICs for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS6505x provides two efficient, 2.25-MHz step-down converters targeted at providing the core voltage and I/O voltage in a processor based system. Both step-down converters enter a low power mode at light.

MIC2176 : Wide Input Voltage, Synchronous Buck Controllers Featuring Adaptive On-Time Control The Micrel MIC2176-1/-2/-3 is a family of constant-frequency, synchronous buck controllers featuring a unique digitally modified adaptive ON-time control architecture. The MIC2176 family operates over an input supply range of 4.5V to 75V and can be used to supply up to 15A of output.

AS3605 : Power Management IC The fully programmable power management unit AS3605 includes: A DC-DC step-down converters and eight low-noise LDOs suitable for RF applications, an LED backlight driver, two programmable current sinks and a Li-Ion battery charger. The step-down converter delivers 500 mA with an efficiency of up to 95%, extending battery life significantly.

 
0-C     D-L     M-R     S-Z