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Part Name(s) : DS4412UR DS4412UT
MaximIC
Maxim Integrated
Description : DUAL-Channel, I2C Adjustable SINK/Source CURRENT DAC

General Description
The DS4412 contains two I2C adjustable-CURRENT DACs that are each capable of SINKing or sourcing CURRENT. Each output has 15 SINK and 15 source settings that are programmed by I2C interface. The full-scale range and step size of each output is determined by an external resistor that can adjust the output CURRENT over a 4:1 range.
The output pins, OUT0 and OUT1, power-up in a high impedance state.

Features
♦ Two CURRENT DACs
♦ Full-Scale CURRENT 500µA to 2mA
♦ Full-Scale Range for Each DAC Determined by External Resistors
♦ 15 Settings Each for SINK and Source Modes
♦ I2C-Compatible Serial Interface
♦ Low Cost
♦ Small Package (8-Pin µSOP)
♦ -40°C to +85°C Temperature Range
♦ 2.7V to 5.5V Operation

Applications
  Power-Supply Adjustment
  Power-Supply Margining
  Adjustable CURRENT SINK or Source

MaximIC
Maxim Integrated
Description : DUAL-Channel, I2C Adjustable SINK/Source CURRENT DAC

General Description
The DS4412 contains two I2C adjustable-CURRENT DACs that are each capable of SINKing or sourcing CURRENT. Each output has 15 SINK and 15 source settings that are programmed by I2C interface. The full-scale range and step size of each output is determined by an external resistor that can adjust the output CURRENT over a 4:1 range.
The output pins, OUT0 and OUT1, power-up in a high impedance state.

Features
♦ Two CURRENT DACs
♦ Full-Scale CURRENT 500µA to 2mA
♦ Full-Scale Range for Each DAC Determined by External Resistors
♦ 15 Settings Each for SINK and Source Modes
♦ I2C-Compatible Serial Interface
♦ Low Cost
♦ Small Package (8-Pin µSOP)
♦ -40°C to +85°C Temperature Range
♦ 2.7V to 5.5V Operation

Applications
  Power-Supply Adjustment
  Power-Supply Margining
  Adjustable CURRENT SINK or Source

Description : Single/DUAL, 16ns, High SINK/Source CURRENT Gate Drivers

General Description
The MAX15024/MAX15025 single/DUAL, high-speed MOSFET gate drivers are capable of operating at frequencies up to 1MHz with large capacitive loads. The MAX15024 includes internal source-and-SINK output transistors with independent outputs allowing for control of the external MOSFET’s rise and fall time. The MAX15024 is a single gate driver capable of SINKing an 8A peak CURRENT and sourcing a 4A peak CURRENT. The MAX15025 is a DUAL gate driver capable of SINKing a 4A peak CURRENT and sourcing a 2A peak CURRENT. An integrated adjustable LDO voltage regulator provides gate drive amplitude control and optimization.

Features
♦ 8A Peak SINK CURRENT/4A Peak Source CURRENT (MAX15024)
♦ 4A Peak SINK CURRENT/2A Peak Source CURRENT (MAX15025)
♦ Low 16ns Propagation Delay
♦ 4.5V to 28V Supply Voltage Range
♦ On-Board Adjustable LDO for Gate-Drive Amplitude Control and Optimization
♦ Separate Output Driver Supply
♦ Independent Source and SINK Outputs (MAX15024)
♦ Matched Delays Between Inverting and Noninverting Inputs (MAX15024)
♦ Matched Delays Between Channels (MAX15025)
♦ CMOS or TTL Logic-Level Inputs with Hysteresis for Noise Immunity
♦ -40°C to +125°C Operating Temperature Range
♦ Thermal-Shutdown Protection
♦ 1.95W Thermally Enhanced TDFN Power Packages

MaximIC
Maxim Integrated
Description : DUAL-Channel, I2C, 7-Bit SINK/Source CURRENT DAC

General Description
The DS4432 contains two I2C programmable CURRENT DACs that are each capable of SINKing and sourcing CURRENT up to 200µA. Each DAC output has 127 SINK and 127 source settings that are programmed using the I2C interface. The CURRENT DAC outputs power up in a high-impedance state.

Features
♦ Two CURRENT DACs
♦ Full-Scale CURRENT 50µA to 200µA
♦ Full-Scale Range for Each DAC Determined by External Resistors
♦ 127 Settings Each for SINK and Source Modes
♦ I2C-Compatible Serial Interface
♦ Low Cost
♦ Small Package (8-Pin µSOP)
♦ -40°C to +85°C Temperature Range
♦ 2.7V to 5.5V Operating Range

Applications
    Power-Supply Adjustment
    Power-Supply Margining
    Adjustable CURRENT SINK or Source

Anpec
Anpec Electronics
Description : DUAL Advanced PWM and Source-SINK Linear Controller

General Description
The APW7047 provides the power controls and protections for three output voltages on AGP/PCI Graphic Card applications. It integrates two PWM controllers , one SOURCE-SINK linear controller, as well as the monitor and protection functions into a single package. One PWM converter (PWM1) regulates the VCORE(1.5V) for the GPU with a SYNC. buck converter. The other standard buck converter (PWM2) regulates the VMEM(2.5V) for the power of DDR memory. The SOURCE-SINK linear controller control two external MOSFETs to be a linear regulator with the capability of sourcing and SINKing CURRENT. It regulates the VTT (1.25V) power for DDR Termination voltage.

Features
• 3 Regulated Voltages are provided
    − SYNC. Buck Converter for VCORE (1.15V~1.50V)
    − Standard Buck Converter for VMEM (2.40V~2.75V)
    − Linear Controller with SOURCE-SINK Regulation for VTT(1.25V)
• Simple Single-Loop Control Design
    − Voltage-Mode PWM Control
• Excellent Output Voltage Regulation
    − VCORE Output : ±2% Over Temperature
    − VMEM Output : ±2% Over Temperature
    − VTT Output : 1/2 VIN ±25mV Over Temperature Min. VIN = 1.7V
• Fast Transient Response
    − Built-in Feedback Compensation
    − Full 0% to 100% Duty Ratio
• Over-Voltage and Over-CURRENT Fault Monitor
• Constant Frequency Operation(200kHz)
• 24 pins, SOIC Package

Applications
• M/B DDR Power Regulation
• AGP/PCI Graphics Power Regulation
• SSTL-2 Termination

Richtek
Richtek Technology
Description : Cost-Effective, 1.8A SINK/Source Bus Termination Regulator

General Description
The RT9045 is a simple, cost-effective and high-speed linear regulator designed to generate termination voltage in Double Data Rate (DDR) memory system to comply with the devices requirements. The regulator is capable of actively SINKing or sourcing up to 1.8A while regulating an output voltage to within 20mV. The output termination voltage can be tightly regulated to track VDDQ/ 2 by two external voltage divider resistors or the desired output voltage can be programmed by externally forcing the REFEN pin voltage.

Features
Ideal for DDR VTT Applications
SINK and Source CURRENT :
  DDRII 1.8A SINK/Source @ VIN = 1.8V
  DDRIII 1.5A SINK/Source @ VIN  = 1.5V
  LPDDRIII 1.2A SINK/Source @ VIN  = 1.35V
`DDRIV 1.2A SINK/Source @ VIN  = 1.2V
Integrated Power MOSFETs
Generate Termination Voltage for DDR Memory Interfaces
Stable with Output Ceramic Capacitor
High Accuracy Output Voltage at Full-Load
Output Adjustment by Two External Resistors
Low External Component Count
Shutdown for Suspend to RAM (STR) Functionality with High Impedance Output
CURRENT Limiting Protection
On-Chip Thermal Protection
RoHS Compliant

Applications
Desktop PCs, Notebooks, and Workstations
Graphics Card Memory Termination
Set Top Boxes, Digital TVs, Printers
Embedded Systems
Active Termination Buses
DDR Memory Systems

Description : Two-/Four-Channel, I2C, 7-Bit SINK/Source CURRENT DAC

General Description
The DS4422 and DS4424 contain two or four I2C programmable CURRENT DACs that are each capable of SINKing and sourcing CURRENT up to 200µA. Each DAC output has 127 SINK and 127 source settings that are programmed using the I2C interface. The CURRENT DAC outputs power up in a high-impedance state.

Features
♦ Two (DS4422) or Four (DS4424) CURRENT DACs
♦ Full-Scale CURRENT 50µA to 200µA
♦ Full-Scale Range for Each DAC Determined by External Resistors
♦ 127 Settings Each for SINK and Source Modes
♦ I2C-Compatible Serial Interface
♦ Two Address Pins Allow Four Devices on Same I2C Bus
♦ Low Cost
♦ Small Package (14-Pin, 3mm x 3mm TDFN)
♦ -40°C to +85°C Temperature Range
♦ 2.7V to 5.5V Operating Range

Applications
    Power-Supply Adjustment
    Power-Supply Margining
    Adjustable CURRENT SINK or Source

Microsemi
Microsemi Corporation
Description : 27-Line LVD SCSI Source/SINK Regulator

DESCRIPTION
The LX5261 is a source/SINK regulator designed to provide the correct reference voltages and bias CURRENTs for SCSI LVD applications. With the proper LVD termination network (475Ω, 121Ω, 475Ω), the LX5261 assures that LVD performance is compliant to the SPI-2 (Ultra2), SPI-3 (Ultra160) and SPI-4 (Ultra320) specification.

KEY FEATURES
◾ Compliant with SPI-2 (Ultra2), SPI-3 (Ultra160), and SPI-4 (Ultra320)
◾ 2.7V to 5.25V Operation
◾ 200mA Source/SINK Capability
◾ DIFSENS Line Driver
CURRENT Limit and Thermal Protection
◾ Pin Compatible With Unitrode UCC561

Semtech
Semtech Corporation
Description : Octal LED Driver, General Purpose CURRENT SINK with Serial Interface

Description
The SC620 is a multi-purpose LED driver with eight identical, independently controlled CURRENT SINKs. Each CURRENT SINK can drive an LED by connecting the LED’s anode to the system power supply and the cathode to the CURRENT SINK input pin. Any combination of outputs can be enabled or disabled for optimal design flexibility.

Features
Wide CURRENT setting range — 31.25μA to 25mA
Eight identical CURRENT drivers with independent control
5% CURRENT matching, 7% accuracy
I2C interface for microprocessor control
I2C slave address 1110 000x
Less than 1μA quiescent CURRENT in shutdown
Low dropout voltage — ≤ 150mV
Over-temperature protection
MLPQ-UT-16 package (3mm x 3mm)
Ultra-thin 0.6mm maximum package height
Fully WEEE and RoHS compliant

Applications
LCD backlighting LED driver
Multicolor and RGB LED driver
General purpose CURRENT SINK array
General purpose digital output (open-drain) expander
Auto-focus voice-coil driver
„

Part Name(s) : 2961 UDN2961B UDN2961W
Allegro
Allegro MicroSystems
Description : HIGH-CURRENT HALF-BRIDGE PRINTHEAD/MOTOR DRIVER—WITH INTERNAL CURRENT SENSING AND CONTROL

HIGH-CURRENT HALF-BRIDGE PRINTHEAD/MOTOR DRIVER—WITH INTERNAL CURRENT SENSING AND CONTROL

The UDN2961B and UDN2961W are 3.4 A half bridges designed specifically for driving solenoid printheads, stepper motors, and dc motors. The UDN2961B/W consists of a power source driver output, a power SINK driver output, a flyback recovery diode, internal CURRENT sensing circuitry, and a user-selectable fixed off-time chopper circuit.

FEATURES
■3.4 A, 45 V Source and SINK Drivers
■Internal CURRENT Sensing
■User-Selectable Fixed Off-Time PWM CURRENT Control
■Internal Flyback Diode
■Low Output Saturation Voltage
■Chip Enable
■Fast or Slow CURRENT-Decay Modes
■Programmable Blanking Window
■Internal Thermal Shutdown Circuitry

 

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