TPS60250RTER ,High Efficiency Charge Pump for 7 WLEDs with I2C Interface 16-WQFN -40 to 85ELECTRICAL CHARACTERISTICS (continued)V = 3.5 V, T = –40°C to 85°C, typical values are at T = 25°C ..
TPS60251RTWR ,High Efficiency Charge Pump for 7 WLEDs with I2C Interface 24-WQFN -40 to 85ELECTRICAL CHARACTERISTICS (continued)V = 3.5 V, T = –40°C to 85°C, R = 562 kΩ, typical values are ..
TPS60251RTWT ,High Efficiency Charge Pump for 7 WLEDs with I2C Interface 24-WQFN -40 to 85FEATURES• Multidisplay Handheld Devices• 3.0-V to 6.0-V Input Voltage Range• ×1 and ×1.5 Charge Pum ..
TPS60252RTER ,High Efficiency Charge Pump for 7 WLEDs with I2C Interface 16-WQFN -40 to 85ELECTRICAL CHARACTERISTICS (continued)V = 3.5 V, T = –40°C to 85°C, typical values are at T = 25°C ..
TPS60255RTER ,7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight 16-WQFN -40 to 85features include soft start, over-current• 25 mA max LED Current for Six Current Sinkslimit, therma ..
TPS60255RTET ,7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight 16-WQFN -40 to 85ELECTRICAL CHARACTERISTICS (continued)V = 3.5 V, T = –40°C to 85°C, typical values are at T = 25°C ..
TSM104AI ,QUAD OPERATIONAL AMPLIFIER AND PROGRAMMABLE VOLTAGE REFERENCETSM104/A QUAD OPERATIONAL AMPLIFIER ANDPROGRAMMABLE VOLTAGE REFERENCEOPERATIONAL AMPLIFIERS.LOW SU ..
TSM104AID ,QUAD OP-AMP & PROGRAMMABLE VOLTAGE REFERENCETSM104/AQUAD OPERATIONAL AMPLIFIER ANDPROGRAMMABLE VOLTAGE REFERENCENOT FOR NEW DESIGN - REPLACED B ..
TSM104AIDT ,QUAD OP-AMP & PROGRAMMABLE VOLTAGE REFERENCETSM104/AQUAD OPERATIONAL AMPLIFIER ANDPROGRAMMABLE VOLTAGE REFERENCENOT FOR NEW DESIGN - REPLACED B ..
TSM104AIN ,QUAD OP-AMP & PROGRAMMABLE VOLTAGE REFERENCEapplications like power supply man-N = Dual in Line Package (DIP)agement or data acquisition system ..
TSM104I ,QUAD OPERATIONAL AMPLIFIER AND PROGRAMMABLE VOLTAGE REFERENCEapplications like power supply manage-o oTSM104I/AI -40 C, +105 C ••ment or data acquisition system ..
TSM104ID ,QUAD OP-AMP & PROGRAMMABLE VOLTAGE REFERENCEELECTRICAL CHARACTERISTICS+ -V = 5V, V = 0V, T = 25°C (unless otherwise specified) CC CC ambSymbo ..
TPS60250RTER
High Efficiency Charge Pump for 7 WLEDs with I2C Interface
TPS60250 TPS60252 www.ti.com............................................................................................................................................................ SLVS769C–APRIL 2007–REVISED APRIL 2008 2 HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I C INTERFACE 1 FEATURES • 3.0 V to 6.0 V Input Voltage Range DESCRIPTION • ×1 and ×1.5 Charge Pump The TPS60250/2 are high efficiency, constant 2 • Fully Programmable Current with I C frequency charge pump DC/DC converters that use – 64 Dimming Steps with 25mA Maximum dual mode 1× and 1.5× conversions to maximize (Sub and Main Display Banks) efficiency over the input voltage range. The devices drive up to five white LEDs for the main display and – 4 Dimming Steps with 80mA Maximum up to two white LEDs for the sub display with (DM5 for Auxiliary Application) regulated constant current for uniform intensity. By • 2% Current Matching for Sub LEDs at Light utilizing adaptive 1×/1.5× charge pump modes and Load Condition (Each 100μA) very low-dropout current regulators, the TPS60250/2 • 750 kHz Charge Pump Frequency achieve high efficiency over the full 1-cell lithium-battery input voltage range. • Continuous 230mA Maximum Output Current • Auto Switching Between ×1 and ×1.5 Mode for Four enable inputs, ENmain, ENsub1, ENsub2, and 2 ENaux, available through the I C, are used for simple Maximum Efficiency on/off controls for the independent main, sub1, sub2, • Built-in Soft Start and Current Limit and DM5 displays, respectively. To lower the • Open Lamp Detection operating current when using one sub display LED, • 16-Pin 3mm x 3mm QFN the devices provide completely separate operation for 2 the sub display LEDs. • TPS60250 (I C Slave Address: 1110111) 2 The TPS60250/2 are available in a 16-pin 3mm x • TPS60252 (I C Slave Address: 1110110) 3mm thin QFN. APPLICATIONS Main Display • Cellular Phones • PDA, PMP, GPS (Up To 4 Inch LCD Display) • Multidisplay Handheld Devices GND DM4 DM3 DM2 95 C1- DM1 4 Main LED - 15 mA, Sub Display 90 V = 3.1 V C2+ F DS2 85 C2 C3 1mF 1mF C2- DS1 80 C1+ 75 DM5 VIN SCLK SDAT 70 VOUT 65 C4 4.7mF 60 2 I C Interface C1 55 On/Off, Digital Dimming 4.7mF 50 3 3.5 4 4.5 5 5.5 6 Figure 2. Typical Application for Sub and Main V - Input Voltage - V I Figure 1. Efficiency vs Input Voltage (1) ORDERING INFORMATION PART NUMBER PACKAGE T A TPS60250RTE 16-Pin 3 mm × 3 mm QFN (RTE) –40°C to +85°C TPS60252RTE (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. 1 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. Copyright © 2007–2008, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Efficiency - %
