XRP7708ILB-F
XRP7708ILB-F Datasheet
XRP7708 and XRP7740
| Part | Datasheet |
|---|---|
XRP7708ILB-F |
XRP7708ILB-F (pdf) |
| Related Parts | Information |
|---|---|
XRP7708EVB |
XRP7708EVB |
| PDF Datasheet Preview |
|---|
| April 2011 XRP7708 and XRP7740 Quad Channel Digital PWM Step Down Controllers The XRP7708 and XRP7740 are quad-output pulse-width modulated PWM step-down DCDC controllers with a built-in LDO for standby power and GPIOs. The devices provide a complete power management solution in one IC and are fully programmable via an I2C serial interface. Independent Digital Pulse Width Modulator DPWM channels regulate output voltages and provide all required protection functions such as current limiting and over-voltage protection. Each output voltage can be programmed from 0.9V to 5.1V without the need of an external voltage divider. The wide range of the programmable DPWM switching frequency from 300 KHz to MHz enables the user to optimize between efficiency and component size. Input voltage range is from 6.5V to 20V. An I2C bus interface is provided to program the IC as well as to communicate with the host for fault reporting and handling, power rail parameters monitoring, etc. The device offers a complete solution for softstart and soft-stop. The start-up delay and ramp of each PWM regulator can be independently controlled. The device can start up a pre-biased PWM channel without causing large negative inductor current. TYPICAL APPLICATION DIAGRAM • Multi Channel Programmable Power Supplies • Audio-Video Equipment • Industrial & Telecom Equipment • Processors & DSPs Based Equipment • 4 Channel Step Down Controller − 3ohm/1.8ohm driver XRP7740 − 5ohm/1.8ohm driver XRP7708 − Programmable Output Voltage 0.9V-5.1V − Programmable 1.5MHz DPWM Frequency • 6.5V-20V Single Input Voltage Range • Up to 6 Reconfigurable GPIO Pins • Fully Programmable via I2C Interface • Independent Digital Pulse Width Modulator DPWM channels • Complete Monitoring and Reporting • Complete Power Up/Down Sequencing • Full On Board Protection OTP, UVLO, OCP and OVP • Built-in 3.3V/5V LDO • PowerArchitect Design Software • Green/Halogen Free 40-pin TQFN XRP7708 XRP7740 Fig. 1 XRP7708 or XRP7740 Application Diagram Exar Corporation 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 XRP7708 and XRP7740 Quad Channel Digital PWM Step Down Controllers ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VCCA, VCCD, LDOOUT, GLx, VOUTx............................ 6V AVDD, DVDD 2.0V VIN1, VIN2 22V to 22V Logic 6V BSTx, VLXx + 5V Storage Temperature -65°C to 150°C Lead Temperature Soldering, 10 sec 300°C OPERATING RATINGS Operating Input Voltage VINX ........................6.5V to 20V Junction Temperature Range ....................-40°C to 125°C Thermal Resistance ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Junction Temperature of TJ = 25°C only limits applying over the full Operating Junction Temperature range are denoted by a Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise indicated, VIN1 = 6.5V to 20V, VIN2 = 6.5V to 20V, Enable=HIGH, CGL = CGH = 1nF. Quiescent Current Parameter Min. VIN Supply Current in STANDBY VIN Supply Current in SHUTDOWN VIN Supply Current Typ. 9 180 28 Max. Units µA mA VIN Supply Current Conditions LDOOUT enabled no load No switching converter channels enabled I2C communication active Switching frequency = 400kHz EN=0V, VIN1=VIN2=12V 4 channels running, GH and GH = 1nF load each VIN=12V, Switching frequency = 300kHz 4 channels running, GH and GH = 1nF load each VIN=12V, Switching frequency = 1MHz ORDERING INFORMATION Junction Temp Range Marking XRP7708ILB- F XRP7708ILB YYWW X XRP7708ILBTR-F XRP7708ILB YYWW X XRP7740ILB- F XRP7740ILB YYWW X XRP7740ILBTR-F XRP7740ILB YYWW X XRP7740ILB XRP7740ILB-0X180-F YYWW X 0X18 XRP7740ILB XRP7740ILBTR-0X18-F YYWW X 0X18 XRP7708EVB XRP7708 Evaluation Board XRP7740EVB XRP7740 Evaluation Board Package 40-pin TQFN Packing Quantity Bulk 40-pin TQFN 3K/Tape & Reel 40-pin TQFN Bulk 40-pin TQFN 3K/Tape & Reel 40-pin TQFN Bulk 40-pin TQFN 3K/Tape & Reel “YY” = Year “WW” = Work Week “X” = Lot Number Note 1 Halogen Free Halogen Free Halogen Free Halogen Free Halogen Free Halogen Free Default I2C Address 0X18 2011 Exar Corporation 7/28 XRP7708 and XRP7740 Quad Channel Digital PWM Step Down Controllers TYPICAL PERFORMANCE CHARACTERISTICS |
| More datasheets: 383-2UYC/S400-A8 | AS1352 | AS1352V-T | AS1352-C0CF-T | AS1352_7BC0-T | AS1352-7BC0_EK_ST | AS1352V | FFA05U120DNTU | FSB127AHN | XRP7708EVB |
Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived XRP7708ILB-F Datasheet file may be downloaded here without warranties.