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Part Name(s) : TPS65170 TPS65170RHDR TPS65170RHDT TI
Texas Instruments
Description : LCD Bias Supply

DESCRIPTION
The TPS65170 provides a simple and economic power supply solution for a wide variety of LCD bias applications.
In typical display panel applications, the boost converter generates the display panel’s source voltage VS, the buck converter generates the system’s logic supply VLOGIC, and the two charge pump controllers regulate the external charge pumps generating the display transistors’ on and off supplies VGH and VGL.
By using external transistors to regulate the charge pump output voltage, power dissipation in the IC is significantly reduced, simplifying PCB thermal design and improving reliability.
The TPS65170 also provides a reset circuit that monitors the buck converter output (VLOGIC) and generates a reset signal for the timing controller during power-up.
A control signal can also be generated to control an external MOSFET isolation switch located between the output of the boost converter and the display panel.

FEATURES
• 8.6V to 14.7V Input Voltage Range
• 2.8A Boost Converter Switch Current Limit
• Boost Converter Output Voltages up to 18.5V
• Boost and Buck Converter Short-Circuit
   Protection
• 1.5A Buck Converter Switch Current Limit
• Fixed 750kHz Switching Frequency for Buck
   and Boost Converters
• Fixed Buck Converter Soft-Start
• Programmable Boost Converter Soft-Start
• Two Charge Pump Controllers to Regulate VGH
   and VGL
• Control Signal for External High-Side MOSFET
   Isolation Switch
• Reset Signal With Programmable Reset Pulse
   Duration
• Thermal Shutdown
• 28-Pin 5×5 mm QFN Package

APPLICATIONS
• LCD TVs and Monitors

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Part Name(s) : SM5849 SM5849AF SM5849F NPC
Nippon Precision Circuits
Description : Asynchronous Sample Rate Converter

OVERVIEW
The SM5849AF is a digital audio signal, asynchronous sample rate converter LSI. It supports 16/20/24-bit word length input data, 16/20/24-bit word length output data, 2kHz to 100kHz input sample rate range, and 4kHz to 200kHz output sample rate range. It also features a built-in digital deemphasis filter and digital attenuator.

FEATURES
Functions
■ Left/right-channel processing (stereo)
■ 2 to 100kHz input sample rate range (fsi)
■ 4 to 200kHz output sample rate range (fso)
■ 0.45 to 2.2-times variable sample rate conversion ratio (fso/fsi)
■ Asynchronous input and output timing (clock inputs)
■ System clock inputs (input and output clocks inde pendent)
   • 256fsi or 384fsi input system clock select
   • 256fso or 384fso output system clock select
■ Deemphasis filter
   • IIR-type filter
   • 44.1, 48 or 32kHz
■ Digital attenuator
   • 11-bit data, 1025 levels
   • Smooth attenuation change
   • +12dB gain shift function
■ Direct mute function
■ Through mode operation
   • Direct connection from input to output
■ Output data clocks (LRCO, BCKO)
   • Slave mode: external input
   • Master mode: output system clock generated internally
■ Dither round-off processing
   • Dither round-off ON/OFF selectable
■ 3.3V single supply
■ 80-pin QFP
■ Silicon-gate CMOS process

Filter Characteristics and Converter Efficiency
■ 24-bit internal data word length
■ Deemphasis filter characteristics (IIR filter)
   • ±0.03dB gain deviation from ideal filter charac teristics
■ Anti-aliasing LPF characteristics
   • Output/input sample rate conversion ratio automatic filter select (6 FIR filters)
      - Up converter LPF
         1.0 to 2.2 times
      - Down converter LPF I
         0.92 times: 48.0 to 44.1kHz
      - Down converter LPF II
         0.73 times: 44.1 to 32.0kHz
      - Down converter LPF III
         0.67 times: 48.0 to 32.0kHz
      - Down converter LPF IV
         0.5 times: 48.0 to 24.0kHz
      - Down converter LPF V
         0.45 times: 48.0 to 22.1kHz
   • ±0.00005dB passband ripple
   • > 110dB stopband attenuation
■ Converter noise levels
   • ≤ −110dB internal calculation (quantization) noise
   • −98dB (16-bit output), −122dB (20-bit output), and −146dB (24-bit output) word rounding noise
■ Output S/N ratio (theoretical values)

Interfaces
■ Input data format
   • 2s-complement, L/R alternating, serial
   • IIS/non-IIS format
■ Output data format
   • 2s-complement, MSB first, L/R alternating, serial
   • Continuous bit clock
  
APPLICATIONS
■ Digital audio equipment-interface sample rate conversion (AV amplifiers, CD-R, DAT, MD and 8mm VTRs)
■ Commercial recording/editing equipment sample rate conversion

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Part Name(s) : SM5849BF NPC
Nippon Precision Circuits
Description : Asynchronous Sample Rate Converter

OVERVIEW
The SM5849BF is a digital audio signal, asynchronous sample rate converter LSI. It supports 16/20/24-bit word length input data, 16/20/24-bit word length output data, 2kHz to 100kHz input sample rate range, and 4kHz to 200kHz output sample rate range. It also features a built-in digital deemphasis filter and digital attenuator.

FEATURES
Filter Characteristics and Converter Efficiency
■ 24-bit internal data word length
■ Deemphasis filter characteristics (IIR filter)
   • ±0.03dB gain deviation from ideal filter characteristics
■ Anti-aliasing LPF characteristics
   • Output/input sample rate conversion ratio auto matic filter select (6 FIR filters)
      - Up converter LPF 1.0 to 2.2 times
      - Down converter LPF I 0.92 times: 48.0 to 44.1kHz
      - Down converter LPF II 0.73 times: 44.1 to 32.0kHz
      - Down converter LPF III 0.67 times: 48.0 to 32.0kHz
      - Down converter LPF IV 0.5 times: 48.0 to 24.0kHz
      - Down converter LPF V 0.45 times: 48.0 to 22.1kHz
   • ±0.00005dB passband ripple
   • > 110dB stopband attenuation
■ Converter noise levels
   • ≤ −110dB internal calculation (quantization) noise
   • −98dB (16-bit output), −122dB (20-bit output), and −146dB (24-bit output) word rounding noise
■ Output S/N ratio (theoretical values) Interfaces
■ Input data format
   • 2s-complement, L/R alternating, serial
   • IIS/non-IIS format
■ Output data format
   • 2s-complement, MSB first, L/R alternating, serial
   • Continuous bit clock

APPLICATIONS
■ Digital audio equipment-interface sample rate conversion (AV amplifiers, CD-R, DAT, MD and 8mm VTRs)
■ Commercial recording/editing equipment sample rate conversion

 

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Part Name(s) : TPS61030 TPS61030RSA TPS61031 TPS61031RSA TPS61032 TPS61032RSA TPS61032RSARG4 TPS61030PWP TPS61030PWPG4 TPS61030PWPR TPS61030PWPRG4 TPS61030RSAR TPS61030RSARG4 TPS61031PWP TPS61031PWPG4 TPS61031PWPR TPS61031PWPRG4 TPS61031RSAR TPS61031RSARG4 TPS61032PWP TPS61032PWPG4 TPS61032PWPR TPS61032PWPRG4 TPS61032RSAR TI
Texas Instruments
Description : 96% EFFICIENT SYNCHRONOUS BOOST CONVERTER WITH 4A SWITCH

DESCRIPTION
The TPS6103x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline, NiCd or NiMH battery. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 1 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters Power Save mode to maintain a high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency. It can also operate synchronized to an external clock signal that is applied to the SYNC pin. The maximum peak current in the boost switch is limited to a value of 4500 mA.
The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.
The device is packaged in a 16-pin QFN package measuring 4 mm x 4 mm (RSA) or in a 16-pin TSSOP PowerPAD™ package (PWP).

FEATURES
• 96% Efficient Synchronous Boost Converter
   With 1000-mA Output Current From 1.8-V
   Input
• Device Quiescent Current: 20-µA (Typ)
• Input Voltage Range: 1.8-V to 5.5-V
• Fixed and Adjustable Output Voltage Options
   Up to 5.5-V
• Power Save Mode for Improved Efficiency at
   Low Output Power
• Low Battery Comparator
• Low EMI-Converter (Integrated Antiringing Switch)
• Load Disconnect During Shutdown
• Over-Temperature Protection
• Available in a Small 4 mm x 4 mm QFN-16 or
   in a TSSOP-16 Package

APPLICATIONS
• All Single Cell Li or Dual Cell Battery
   Operated Products as MP-3 Player, PDAs, and
   Other Portable Equipment


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Part Name(s) : NJU7660A NJU7660AM NJU7660AM-TE1 NJU7660AV NJU7660AV-TE1 JRC
Japan Radio Corporation
Description : VOLTAGE CONVERTER

GENERAL DESCRIPTION
NJU7660A is a CMOS switched capacitor, voltage converter designed to be an Improved direct replacement of popular 7660/1044.
NJU7660A provides several voltage conversion functions.
The application circuit of negative voltage (VOUT= -VIN) converter requires only two capacitors, and positive twofold voltage(VOUT=2VIN) converter requires two capacitors and two diodes as external components.

FEATURES
 Full Compatible with NJU7660
 Correspond to MLCC and electrolytic capacitor
 Twofold positive Output
 Polarity-converted Negative voltage Output
 Operating voltage range :+1.5V to +10V(for Negative voltage converter)
                                  :+3.0V to +10V(for Twofold voltage converter)
 High-efficiency voltage conversion rate :99.9%(No load, Negative voltage converter)
 Few external components :2 capacitors(Negative voltage converter)
                                   :2 capacitors, 2diode(Twofold voltage converter)
 Package Outline :DMP8, SSOP8
 CMOS Technology

 

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Part Name(s) : HPA01143PWPR HPA02269RSAR TPS61030 TPS61030PWP TPS61030PWPG4 PS61032 PS61031 PS61030 TPS61030PWPR TPS61030PWPRG4 TPS61030RSAR TPS61030RSARG4 TPS61031 TPS61031PWP TPS61031PWPG4 TPS61031PWPR TPS61031PWPRG4 TPS61031RSAR TPS61032 TPS61032PWP TPS61032PWPG4 TPS61032PWPR TPS61032RSAR TPS61032RSARG4 Texas-Instruments
Texas Instruments
Description : 96% Efficient Synchronous Boost Converter With 4A Switch

Description
The TPS6103x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline, NiCd or NiMH battery. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 1 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters Power Save mode to maintain a high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency. It can also operate synchronized to an external clock signal that is applied to the SYNC pin. The maximum peak current in the boost switch is limited to a value of 4500 mA.
The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.

Features
• 96% Efficient Synchronous Boost Converter With
   1000-mA Output Current
   From 1.8-V Input
• Device Quiescent Current: 20-µA (Typ)
• Input Voltage Range: 1.8-V to 5.5-V
• Fixed and Adjustable Output Voltage Options Up
   to 5.5-V
• Power Save Mode for Improved Efficiency at Low
   Output Power
• Low Battery Comparator
• Low EMI-Converter (Integrated Antiringing Switch)
• Load Disconnect During Shutdown
• Over-Temperature Protection
• Available in a Small 4 mm x 4 mm QFN-16 or in a
   TSSOP-16 Package

Applications
   All Single Cell Li or Dual Cell Battery Operated
   Products as MP-3 Player, PDAs, and Other
   Portable Equipment

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Part Name(s) : AD2S83 AD2S83AP AD2S83IP AD2S83AP AD2S83IP AD2S83 ADI
Analog Devices
Description : Variable Resolution, Resolver-to-Digital Converter

GENERAL DESCRIPTION
The AD2S83 is a monolithic 10-, 12-, 14-, or 16-bit tracking resolver-to-digital converter.
The converter allows users to select their own resolution and dynamic performance with external components. The converter allows users to select the resolution to be 10, 12, 14, or 16 bits and to track resolver signals rotating at up to 1040 revs per second (62,400 rpm) when set to 10-bit resolution.
The AD2S83 converts resolver format input signals into a parallel natural binary digital word using a ratiometric tracking conversion method. This ensures high noise immunity and tolerance of long leads allowing the converter to be located remote from the resolver.
The position output from the converter is presented via 3-state output pins which can be configured for operations with 8- or 16-bit bus. BYTE SELECT, ENABLE and INHIBIT pins ensure easy data transfer to 8- and 16-bit data bus, and outputs are provided to allow for cycle or pitch counting in external counters.
A precise analog signal proportional to velocity is also available and will replace a tachogenerator.
The AD2S83 operates over reference frequencies in the range 0 Hz to 20,000 Hz.

FEATURES
  Tracking R/D Converter
  High Accuracy Velocity Output
  High Max Tracking Rate 1040 RPS (10 Bits)
  44-Lead PLCC Package
  10-, 12-, 14-, or 16-Bit Resolution Set by User
  Ratiometric Conversion
  Stabilized Velocity Reference
  Dynamic Performance Set by User
  Industrial Temperature Range
 
APPLICATIONS
  DC and AC Servo Motor Control
  Process Control
  Numerical Control of Machine Tools
  Robotics
  Axis Control

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Part Name(s) : FA7703 FA7703M FA7703V FA7704 FA7704M FA7704V Fuji
Fuji Electric
Description : Power supply control, for PWM DC-DC converter

Description
FA7703/04 are the PWM type DC-DC converter control ICs with 2ch output that can directly drive power MOSFETs. FA7703/04 feature CMOS devices with high breakdown voltage and also low power consumption are achieved. By means of their small and thin package (1.1mm max.), and high frequency operation (to 1MHz), FA7703/04 are completely suitable for the use of very small DC-DC converters. Besides, you can select a Pch or Nch type of MOSFET directly driven by FA7703/04, and also you can practically design any kind of DC-DC converter circuit like a boost converter, a buck converter, a inverting converter, a fly-back converter, and so on.

2. Features
• Wide range of supply voltage
  FA7703 : VCC=2.5 to 30V FA7704 : VCC=2.5 to 20V
• Direct driving of MOSFET
• Switching Pch/Nch driving is available (channel 1 only)
• Low current consumption is achieved by CMOS process: 1.8mA (typ.) in operation
• 2ch PWM control IC
• High frequency operation is available: 50kHz to 1MHz
• Simple setting of operation frequency with a timing resistor
• Soft start setting is available
• Setting of the limitation of maximum output duty cycle is available in each channel
• Built-in protection function for undervoltage lockout
• Highly accurate reference voltage:
  VREF: 1.00V±1%, VB: 1.00V±2%, VREG: 2.20V±2%
• Built-in output timer latched short-circuit protection circuit
• Thin and small package: TSSOP-16, SOP-16

 

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Part Name(s) : TPS65000 TPS650001 TPS650001RTE TPS650001RTER TPS650001RTET TPS650003 TPS650003RTE TPS650003RTER TPS650003RTET TPS650006 TPS650006RTE TPS650006RTER TPS650006RTET TPS65000RTE TPS65000RTER TPS65000RTET TPS65001 TPS65001RUK TPS65001RUKR TPS65001RUKT TPS650061 TPS650061RUK TPS650061RUKR TPS650061RUKT TI
Texas Instruments
Description : 2.25-MHz Step-Down Converter With Dual Low Dropouts and Supply Voltage Supervisor

Description
The TPS6500xx devices are single-chip power management (PWM) ICs for portable applications. Both devices combine a single step-down converter with two low-dropout (LDO) regulators. The step down converter enters a low-power mode at light load for maximum efficiency across the widest possible range of load currents. For low-noise applications, the devices can be forced into fixed-frequency PWM through a pin. The step-down converter is small because of its small inductor and capacitors. The step-down converter has power good status output for sequencing. The LDOs can supply 300 mA and operate with an input voltage range from 1.6 V to 6 V. A step-down converter or main battery can power the LDOs directly. The step-down converter and the LDOs have separate voltage inputs that enable maximum design and sequencing flexibility.

Features
• Step-Down Converters:
   – VIN Range From 2.3 V to 6 V
   – Spread Spectrum Clock (SSC) Generation for
      Reduced EMI
   – 2.25-MHz Fixed Frequency Operation
   – 600-mA or 1-A (TPS650061) Output Current
• Low Dropouts (LDOs):
   – VIN Range From 1.6 V to 6 V
   – Adjustable Output Voltage
   – Up to 300-mA Output Current
   – Separate Power Inputs and Enables
• Supply Voltage Supervisor (TPS65001)
   – Manual Reset Input for Push Button
   – Adjustable Reset Time
   – Adjustable Reset Voltage
• 3-mm × 3-mm 16-Pin WQFN (TPS65000)
• 3-mm × 3-mm 20-Pin WQFN (TPS65001)

Applications
• Points-of-Load
• Embedded Processor Power
• Cell Phones
• Smart Phones
• PDAs
• Pocket PCs
• Portable Media Players

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