lp8765rlx National Semiconductor Corporation, lp8765rlx Datasheet
lp8765rlx
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lp8765rlx Summary of contents
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... The current sink provides 4-bit current resolution with 6-bit PWM dimming 120 mA maximum load current. Two general-purpose comparators can be used for detecting external accessories like ear plugs, etc. © 2011 National Semiconductor Corporation LP8765 Features ■ Linear Li-Ion Battery Charger with Single Input 1200 mA Charging Current 4 ...
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General Description .............................................................................................................................. 1 Features .............................................................................................................................................. 1 Applications ......................................................................................................................................... 1 General Typical Application Diagram ....................................................................................................... 3 Device Pin Diagram .............................................................................................................................. 4 Package Marking Information ................................................................................................................. 4 Ordering Information ............................................................................................................................. 4 LP8765 Pin Descriptions ........................................................................................................................ 5 Device Operation Description ................................................................................................................. 6 ...
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General Typical Application Diagram 3 30162001 www.national.com ...
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... Device Pin Diagram Package Marking Information Ordering Information Order Number LP8765RLE LP8765RLX www.national.com TOP VIEW 49-Bump (0.4 mm pitch) micro SMDxt Package Package Type Product ID micro SMD xT 8765 4 30162002 30162003 Supplied As 250 Units on Tape & Reel 1000 Units onTape & Reel ...
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LP8765 Pin Descriptions Pin # Name Type F5 ADC1 A E5 ADC2 A G6 BATT P F3 FB_B1 A E1 FB_B2 A G3 GND_B1 G F1 GND_B2 G D4 GND_LDO G B2 GND_SINK G F2 GPIO1 DI E2 GPIO2 DI ...
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Pin # Name A5 XIN A4 XOUT A: Analog Pin DI/O: Digital Input/Output Pin G: Ground Device Operation Description OPERATION MODES POWER-ON-RESET: In POWER-ON RESET mode all internal registers are reset to the default values. STANDBY: In STANDBY mode all ...
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Note 1: PS_HOLD timer is programmable 1.5s, 2s, 4s, and 8s. ** Note 2: RSTIN_N timer is programmable 0.5 ms, 1.0 ms, 2 ms. 7 30162004 www.national.com ...
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POWER-ON AND POWER-OFF SEQUENCES Default on power rail startup sequence: 2.5V reference voltage Power-Off sequence is in reverse order of startup sequences. www.national.com → → → LDO5 Buck2 Buck1. 8 30162005 ...
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Voltage Outputs Loads Range (V) BUCK1 Core1 0.8 - 1.45 BUCK2 IO&Memory 0.8 - 2.1 LDO1 (ALDO1) 26M, VCTCXO 1.5 - 3.0 LDO2 (ALDO2 1.5 - 3.0 LDO3 (ALDO3 1.5 - 3.0 LDO4 (ALDO4 ...
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Support Functions REFERENCE LP8765 has an internal reference block creating all necessary references and biasing for all blocks. OSCILLATOR There is an internal oscillator giving clock to the bucks and to logic control (2MHz typ.). REFERENCE VOLTAGE (2.5V) Parameter Typ. ...
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Absolute Maximum Ratings 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VIN_CHG, VIN_CHG SENSE V , VIN1, VIN2, VIN_B1, BATT VIN_B2 VIN3 VCOIN SINK1&2 SINK3 All other input-only pins ...
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Symbol Parameter V Input Low Level IL V Input High Level IH I Input Current LEAK R Input Resistance IN Logic and Control Outputs V Output Low Level OL V Output High Level OH I Open Drain Leakage OH Note ...
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Linear Li-Ion Battery Charger with Single Input LP8765 has a built-in Li-Ion/Li-Poly battery management sys- tem. Its main features are: • Single input - AC adapter or USB • CC/CV linear charging • Selectable battery regulation voltage • Flexible charging ...
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Unless otherwise noted, V (=V BATT VIN1 =0V 1=C =C VIN_CHG VIN_B VIN_B2 BUCK pearing in normal type apply for T =25°C. Limits appearing in boldface type apply over the entire junction temperature range for J operation, T ...
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Buck Converters The LP8765 contains two high-efficiency step-down DC-DC switching buck converters, capable of delivering a constant voltage from a single Li-Ion battery. Using a voltage mode architecture with synchronous rectification, the LP8765 has the ability to deliver up to ...
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Forced PWM BUCKx PFM/ PWM Mode 0 Auto mode PFM/PWM 1 Forced PWM mode INTERNAL SYNCHRONOUS RECTIFICATION While in PWM mode, the converter uses an internal NFET as a synchronous rectifier to reduce rectifier forward voltage drop and associated power ...
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Unless otherwise noted, V (=V BATT VIN1 =0V 1=C =C VIN_CHG VIN_B VIN_B2 BUCK pearing in normal type apply for T =25°C. Limits appearing in boldface type apply over the entire junction temperature range for J operation, T ...
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LDO's There are all together 10 LDO's in LP8765 grouped as: • A-type LDO's (LDO's 1-4) • D-type LDO's (LDO's 5-8) • LILO LDO (LDO 9) • USB LDO (LDO 10) The A-type LDO’s are optimized for supplying of analog ...
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Symbol Parameter V Dropout Voltage DO Line Regulation ΔV OUT Load Regulation e Output noise voltage N Power Supply Ripple Rejection PSRR Ratio t Startup Time from Shutdown STARTUP V TRANSIEN Startup Transient Overshoot T External output capacitance C OUT ...
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Typical values and limits appearing in normal type apply for T junction temperature range for operation, T (Note 6) Symbol Parameter V Output Voltage Accuracy OUT I Output Current Limit SC ΔV Line Regulation OUT ΔV Load Regulation OUT Power ...
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A/D Converter LP8765 is equipped with a 12-bit successive approximation analog-to-digital converter to enable the conversion of analog inputs: • Battery voltage • Charge voltage or current • IC temperature • Battery Temperature (external input) The battery voltage input and ...
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Unless otherwise noted, V (=V BATT VIN1 =0V 1=C =C VIN_CHG VIN_B VIN_B2 BUCK pearing in normal type apply for T =25°C. Limits appearing in boldface type apply over the entire junction temperature range for J operation, T ...
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ALARMX MINUTES Minute setting for alarm; 0x3F to ignore minutes ALARMX HOURS Hour setting for alarm; 0x1F to ignore hours ALARMX DAY OF MONTH Day of month setting for alarm; 0x1F to ignore day of month ALARMX MONTH Month setting ...
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Comparators LP8765 contains two general purpose comparators which can be used for detecting external accessories like ear plugs, etc. Unless otherwise noted, V (=V BATT VIN1 =0V 1=C =C VIN_CHG VIN_B VIN_B2 BUCK pearing in normal type apply ...
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Current Sinks SINK1: Powered up to VBATT+0.5V, 100 mA/120 mA Max Current. SINK2: Powered up to VBATT+0.5V, 100 mA/120 mA Max Current. SINK3: Powered up to 10V, 100 mA/120 mA Max Current. Recommendation: use either SINK1 or SINK2 to ...
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I 2 C-Compatible Serial Bus Interface INTERFACE BUS OVERVIEW The I 2 C-compatible synchronous serial interface provides ac- cess to the programmable functions and registers on the device. This protocol uses a two-wire interface for bi-directional com- munications between the ...
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Physical Dimensions inches (millimeters) unless otherwise noted 25-bump Thin micro SMD Package NS Package Number RLA49JJA X1 = 3.669 mm ±0.030 3.669 mm ±0.030 0.650 mm ±0.075 mm 27 www.national.com ...
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