Details, datasheet, quote on part number: UCC3750
PartUCC3750
CategorySemiconductors => Power Management => Power Management Special Functions => Telecom Ringer
Part familyUCC3750 Source Ringer Controller
DescriptionSource Ringer Controller 28-SOIC 0 to 70
CompanyTexas Instruments, Inc.
StatusACTIVE
ROHSY
SampleYes
DatasheetDownload UCC3750 datasheet
Cross ref.Similar parts: ISL6524ACB, ISL6524CB, ISL6524CB-T, ISL6524CBZ, ISL6524CBZ-T, ISL6524CBZA, ISL6524CBZA-T, HIP6017CB, HIP6017CB-T, HIP6021CB
Quote
Find where to buy
 
Specifications 
Operating Temperature Range(C)0 to 70
Package GroupSOIC
Approx. Price (US$)6.90 | 1ku
Operating Supply(Min)(V)4.5
Operating Supply(Max)(V)5.5
Operating Supply Current(mA)0.5
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
28DWSOICR-PDSO-G20TUBEUCC3750DW 7.517.92.351.27
Application notes
• U-169 A Complete Control Solution for a Four-Quadrant Flyback Converter
The UCC3750 Source-Ringer Controller provides a complete control and drive solution for a four quadrant flyback-based ring generator circuit. The IC controls a primary-side switch, which is modulated when power transfer is taking place from input to output | Doc

 

Features, Applications

FEATURES

Provides Control for Flyback Based Four Quadrant Amplifier Topology Onboard Sine Wave Reference with Low THD Selectable Ringing Frequency for Different Phone Systems (20Hz, 25Hz and 50Hz) Programmable Output Amplitude and DC Offset DC Current Limiting for Short Circuit Protection Secondary Side Voltage Mode Control Operates from a Single 5V Supply

DESCRIPTION

The UCC3750 Source Ringer Controller provides a complete control and drive solution for a four quadrant flyback-based ring generator circuit. The IC controls a primary side switch, which is modulated when power transfer is taking place from input to output. It also controls two secondary switches which act as synchronous rectifier switches during positive power flow. These switches are pulse-width-modulated when the power is being delivered back to the source. The UCC3750 has an onboard sine wave reference with programmable frequencies 20Hz, 25Hz and 50Hz. The reference is derived from a high-frequency (32kHz) crystal connected externally. Two frequency-select pins control an internal divider to give a sinusoidal output or 50Hz. The ring generator can also be used at other frequencies by supplying externally generated sine-waves to the chip or by clocking the crystal input at a fixed multiple of the desired frequency. Other features included in the UCC3750 are programmable DC current limit (with buffer amplifier), a charge-pump circuit for gate drive voltage, internal 3V and 7.5V references, a triangular clock oscillator and a buffer amplifier for adding programmable DC offset to the output voltage. The UCC3750 also provides an uncommitted amplifier (AMP) for other signal processing requirements.

Input Supply Voltage VDD. 7.5V Maximum Forced Voltage VCP. OUT1, OUT2, AMPOUT, OUTDC Maximum Forced Voltage. to 7.5V Maximum Forced Current. Internally Limited NEG1, NEG2, AMPIN, NEGDC Maximum Forced Voltage. to 7.5V SINREF, SINFLT Maximum Forced Voltage. to 7.5V Logic Inputs Maximum Forced Voltage. to 7.5V Reference Output Current (REF). Internally Limited Output Current GD2, GD3) Pulsed. 1.5A Storage Temperature. to +150C Junction Temperature. to +150C Lead Temperature (Soldering, 10 Sec.). +300C Unless otherwise indicated, voltages are reference to ground and currents are positive into, negative out of the specified terminal. Pulsed is defined as a less than 10% duty cycle with a maximum duration of 500ns. Consult Packaging Section of Databook for thermal limitations and considerations of packages.

RGOOD GD1 GND VCP VS 2 VDD S WRLY S INREF S INFLT OUTDC NEGDC AMP OUT AMP IN GD2 ENBL GD3 REF OUT1 OUT2

ELECTRICAL CHARACTERISTICS:Unless otherwise stated, these specifications apply for to 70C for the to +85C for the = 470pF, CREF = 0, VDD TA = TJ.

PARAMETER VDD Supply Current - Active Internal Reference w/External Bypass Output Voltage (REF) Load Regulation Line Regulation Amplifier Input Voltage Input Bias Current AVOL VOH VOL Short Circuit Current Sine Reference Accuracy Total Harmonic Distortion Amplitude Offset = 25C, Program FrequencyReference Frequency (Note 1) Peak % V VOUT to 4V Source 100A Sink 100A VIN = 0V and 5V with VOUT = 0V and 0.5 5.35 Error, DC Offset and Amp Amplifiers DC Limit Amplifier V mA IREF 2mA VCP to 13V, IREF V mV With 12V Supplied to VCP and Charge Pump Disabled 1 mA TEST CONDITIONS MIN TYP MAX UNITS

ELECTRICAL CHARACTERISTICS:Unless otherwise stated, these specifications apply for to 70C for the to +85C for the = 470pF, CREF = 0, VDD TA = TJ.

PARAMETER Oscillator Accuracy Peak Voltage Valley Voltage Charge Pump Switch Pull Up Resistance (VS1, VS2) Switch Pull Down Resistance (VS1, VS2) Output Voltage (VCP) Output Drivers Pull Up Resistance Pull Down Resistance Rise Time Fall Time Current Limit DC Limit Threshold Voltage Positive DC Limit Threshold Voltage Negative Duty Cycle Maximum PWM Duty Cycle Rectifier Duty Cycle Note 1: Guaranteed by measuring the steps of the PWL Sine Wave. STATE VCC VALUE FOR REF STATE VCC VALUE FOR REF 2.7nF ns VDD = 5V, IVCP 10mA V kHz V TEST CONDITIONS MIN TYP MAX UNITS

AMPIN: Inverting input of the uncommitted amplifier. AMPOUT: Output of the uncommitted amplifier. CT: This pin programs the internal PWM oscillator frequency. Capacitor from CT to GND sets the charge and discharge time of the oscillator. ENBL: Logic input which enables the outputs and the charge pump when high. ENBL should be pulled low to turn the outputs off. FS0, FS1: Frequency select pins for the internal sine-wave generator. Table 1 provides the SINREF frequencies as a function of FS0 and FS1 when a 32kHz crystal is used at the crystal inputs (XTAL1, XTAL2). Other proportional frequencies can be obtained with a different crystal. Inputs FS0 and FS1 are TTL compatible. 3

Table I. Frequency selection table (for 32kHz crystal).

GD1: Output driver that controls the primary side switch in a flyback converter through a gate drive transformer. The output signal on this pin is PWM during positive power transfer modes and zero during negative power transfer modes.


 

Some Part number from the same manufacture Texas Instruments, Inc.
UCC3750DW ti UCC3750, Source Ringer Controller
UCC3751 Single Line Ring Generator Controller
UCC3751D ti UCC3751, Single Line Ring Generator Controller
UCC3752
UCC3752D ti UCC3752, Resonant Ring Generator Controller
UCC3776 Quad Fet Driver
UCC3776DP ti UCC3776, Quad Fet Driver
UCC3800 Low-power Bicmos Current-mode PWM
UCC3800D ti UCC3800, Low-power Bicmos Current-mode PWM
UCC3801 Low-power Bicmos Current-mode PWM
UCC3801D ti UCC3801, Low-power Bicmos Current-mode PWM
UCC3802 Low-power Bicmos Current-mode PWM
UCC3802D ti UCC3802, Low-power Bicmos Current-mode PWM
UCC3803 Low-power Bicmos Current-mode PWM
UCC3803D ti UCC3803, Low-power Bicmos Current-mode PWM
UCC3804 Low-power Bicmos Current-mode PWM
UCC3804D ti UCC3804, Low-power Bicmos Current-mode PWM
UCC3805 Low-power Bicmos Current-mode PWM
UCC38050 Transition Mode PFC Controller
UCC38050D ti UCC38050, Transition Mode PFC Controller
UCC38050DR Transition Mode PFC Controller
Same catergory

BFW17A : Catv-matv Amplifiers.

BQ2018 : Power. Power Minder(tm) ic. Multifunction charge/discharge counter Resolves signals less than 12.5V Internal offset calibration improves accuracy 1024 bits of NVRAM configured 8 Internal temperature sensor for self-discharge estimation Single-wire serial interface Dual operating modes: The is a low-cost charge/discharge counter peripheral packaged an 8-pin TSSOP.

EL2073C : 200 MHZ Unity-gain Stable Operational Amplifier. 200MHz gain-bandwidth product Unity-gain stable Ultra low video distortion 0.01%/0.015 @ NTSC/PAL Conventional voltage-feedback topology Low offset voltage = 200V Low bias current = 2A Low offset current = 0.1A Output current = 50mA over temperature Fast settling to 0.1% Low distortion = +1 The is a precision voltage-feedback amplifier featuring.

HA12175 : Audio Signal Processor For Car Deck And Cassette Deck ( Dolby B/c-type NR With PB Amp ).

HA12219NT : Audio Signal Processor For Cassette Deck. HA12219NT is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system and each electronic control switch in one chip. PB equalizer 2 channel REC equalizer 2 channel Each electronic control switch to change REC/PB etc. REC MUTE REC head return switch REC equalizer is very small number of external parts, built-in 2 types of frequency.

INA101CG : High Accuracy Instrumentation Amplifier. LOW DRIFT: 0.25V/C max LOW OFFSET VOLTAGE: 25V max LOW NONLINEARITY: 0.002% LOW NOISE: 13nV/Hz HIGH CMR: AT 60Hz HIGH INPUT IMPEDANCE: 1010 14-PIN PLASTIC, CERAMIC DIP, SOL-16, AND TO-100 PACKAGES APPLICATIONS STRAIN GAGES THERMOCOUPLES RTDs REMOTE TRANSDUCERS LOW-LEVEL SIGNALS MEDICAL INSTRUMENTATION The is a high accuracy instrumentation amplifier.

LM293AP : Dual Differential Comparators. Single Supply or Dual Supplies Wide Range of Supply Voltage. 36 V Low Supply-Current Drain Independent of Supply Voltage. 0.4 mA Typ Per Comparator Low Input Bias Current. 25 nA Typ Low Input Offset Current. 3 nA Typ (LM193) Low Input Offset Voltage. 2 mV Typ Common-Mode Input Voltage Range Includes Ground Differential Input Voltage Range Equal to Maximum-Rated.

MC7831 : 870 MHZ GAAS Catv 18 DB Push-pull Amplifier(604). GaAs ACTIVE DEVICES LOW DISTORTION HIGH LINEAR GAIN: 18 dB MIN = 870 MHz 22 dB MIN = 870 MHz 25 dB MIN = 870 MHz LOW RETURN LOSS LOW GAIN CHANGE OVER TEMPERATURE SPECIFIED FOR 79, 110, and 132 CHANNELS PERFORMANCE HIGH RELIABILITY AND RUGGEDNESS: Withstands environmental extremes as well as Silicon devices (Surge, ESD, Etc.) NEC's MC-7831, MC-7832,.

MLX10410 : 8 Fold High Side Driver. Small package (SOIC20) Short-circuit protection Diagnostic Current limitation Low-power consumption Over-temperature protection Direct micro controller compatible Integrated free wheel diodes Applications Automotive climate Control Dashboard Industrial Actuator control Part No. MLX10410 Temperature Suffix to 85C) Package Code DF (SOIC-20) Option code.

OP-07CSB : Precision Operational Amplifier.

PS4066 : Low Cost Quad SPST Switch. Low-Cost, Quad, SPST, CMOS Analog Switches Low On-Resistance Matching Between Channels, 0.2 typ On-Resistance Flatness, <2 typ Low Off-Channel Leakage, @ +25oC TTL/CMOS Logic Compatible GND-to-V+ Analog Signal Dynamic Range Low Power Consumption (<12W) Low Crosstalk: @ 1MHz Low Off-Isolation: @ 1 MHz Wide Bandwidth: > 100 MHz Small QSOP-16.

TLC27M2 : Linear CMOS Dual op Amp: Dual. Trimmed Offset Voltage: 500 V Max at 25C, VDD 5 V Input Offset Voltage Drift. Typically 0.1 V/Month, Including the First 30 Days Wide Range of Supply Voltages Over Specified Temperature Ranges: 16 V Single-Supply Operation Common-Mode Input Voltage Range Extends Below the Negative Rail (C-Suffix, I-Suffix Types) Low Noise. Typically 32 nV/Hz = 1 kHz Low Power.

VCA2611Y/250 : Variable Gain. ti VCA2611, Dual, Variable Gain Amplifier With Low-noise Preamp.

OPA2171 : 36V, Low Power, RRO, General Purpose Operational Amplifier In MicroPackages The OPA171, OPA2171 and OPA4171 (OPAx171) are a family of 36V, single-supply, low-noise operational amplifiers with the ability to operate on supplies ranging from +2.7V (1.35V) to +36V (18V). These devices are available in micro-packages and offer low offset, drift, and bandwidth.

CGY1041 : 1 GHz, 21 DB Gain GaAs Push-pull Amplifier Hybrid amplifier module in a SOT115J package, operating at a supply voltage of 24 V Direct Current (DC), employing Heterojunction Field Effect Transistor (HFET) GaAs dies..

AD8420ARMZ-RL : Wide Supply Range, Micropower, Rail-to-Rail Instrumentation Amplifier The AD8420 is a low cost, micropower, wide supply range, instrumentation amplifier with a rail-to-rail output and a novel architecture that allows for extremely flexible design. It is optimized to amplify small differential voltages in the presence of large common-mode signals..

 
0-C     D-L     M-R     S-Z