 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LP3918 Datasheet(PDF) 2 Page - Texas Instruments |
|
|
||||||||||||||||||||||||||||||
LP3918 Datasheet(HTML) 2 Page - Texas Instruments |
|
|
2 / 39 page  C A 5 4 3 2 1 TOP VIEW BATT VIN2 LDO5 LDO4 GNDA LDO3 LDO2 LDO1 VIN1 TCXO _EN RX_EN SDA SCL VSS TX_EN PON _N RESET _N ACOK _N LDO7 LDO6 HF PWR PS_ HOLD PWR _ON IMON CHGIN B D E LP3918 SNVS476D – AUGUST 2007 – REVISED MAY 2013 www.ti.com Device Pin Diagram Figure 2. LP3918 25 pin DSBGA Package TOP VIEW PIN DESCRIPTION Pin # Name Type(1) Description A1 IMON A Charge current monitor output. This pin presents an analog voltage representation of the input charging current. VIMON(mV) = (2.47 x ICHG)(mA). A2 PS_HOLD DI Input for power control from external processor/controller. A3 VSS G Digital Ground pin A4 RESET_N DO Reset Output. Pin stays LOW during power up sequence. 60ms after LDO1 (CORE) is stable this pin is asserted HIGH. A5 ACOK_N DO AC Adapter indicator, LOW when 4.5V – 6.0V present at CHG_IN. B1 CHG_IN P DC power input to charger block from wall or car power adapters. B2 PWR_ON DI Power up sequence starts when this pin is set HIGH. Internal 500k Ω pull-down resistor. B3 SCL DI Serial Interface Clock input. External pull up resistor is needed, typ 1.5k Ω B4 PON_N DO Active low signal is PWR_ON inverted B5 LDO7 A LDO7 Output (GP) C1 BATT P Main battery connection. Used as a power connection for current delivery to the battery. C2 HF_PWR DI Power up sequence starts when this pin is set HIGH. Internal 500k Ω pull-down resistor. C3 SDA DI/O Serial Interface, Data Input/Output Open Drain output, external pull up resistor is needed, typ 1.5k Ω. C4 TX_EN DI Enable control for LDO6 (TX). HIGH = Enable, LOW = Disable. C5 LDO6 A LDO6 Output (TX) D1 VIN1 P Battery Input for LDO1 - 2 D2 TCXO_EN DI Enable control for LDO4 (TCXO). HIGH = Enable, LOW = Disable. D3 GNDA G Analog Ground pin D4 RX_EN DI Enable control for LDO5 (RX). HIGH = Enable, LOW = Disable. D5 LDO5 A LDO5 Output (RX) (1) A: Analog. D: Digital. I: Input. DI/O: Digital Input/Output. G: Ground. O: Output. P: Power. 2 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: LP3918 |
Similar Part No. - LP3918 |
|
Similar Description - LP3918 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
