TPS65820 Datasheet, PDF (1/94 Pages) Texas Instruments – SINGLE-CELL Li-ION BATTERY- AND POWER-MANAGEMENT IC

TPS65820
www.ti.com
SLVS663 – MAY 2006
SINGLE-CELL Li-ION BATTERY- AND POWER-MANAGEMENT IC
FEATURES
• BATTERY CHARGER
– Complete charge management solution for
single Li-Ion/Li-Pol cell with thermal
foldback, dynamic power management and
pack temperature sensing, supporting up to
1.5-A max charge current
– Programmable charge parameters for AC
adapter and USB port operation
• INTEGRATED POWER SUPPLIES
– A total of 9 LDOs are integrated:
• Six adjustable output LDOs (1.25-V to
3.3-V)
• Two fixed-voltage LDOs (3.3-V)
• One fixed-voltage, always-on LDO (3.3-V)
• One RTC backup supply with low leakage
(3.1-V)
– Two 600-mA, programmable dc/dc buck
converters (0.6-V to 3.4-V) with enable,
standby mode operation and automatic
low-power mode setting
• DISPLAY FUNCTIONS
– Two open-drain PWM outputs with
programmable frequency and duty cycle.
Can be used to control keyboard backlight,
vibrator, or other external peripheral
functions
– RGB LED driver with programmable
flashing period and individual R/G/B
brightness control
– Constant-current white LED driver, with
programmable current level, brightness
control, and over-voltage protection can
drive up to 6 LEDs in series configuration
• SYSTEM MANAGEMENT
– Dual input power path function with input
current limiting and OVP protection
– POR function with programmable masking
monitors all integrated supplies outputs
– Software and hardware reset functions
– 8-channel integrated A/D samples system
parameters with single conversion, peak
detection, or averaging operating modes
• HOST INTERFACE
– Host can set system parameters and
access system status using I2C interface
– Interrupt function with programmable
masking signals system status modifiction
to host
– 3 GPIO ports, programmable as drivers,
integrated A/D trigger or buck converters
standby mode control
APPLICATIONS
• PDAs
• Smart Phones
• MP3s
• Internet Appliances
• Handheld Devices
BLUE
SCLK
SDA T
R TC_OUT
SIM
USB
AC
OUT
OUT
LDO_PM
ISET1
TS
TMR
DPPM
56 55 54 53 52 51 50 49 48 47 46 45 44 43
1
42
2
41
3
40
4
39
5
38
6
37
7
36
GROUND PAD
8
35
9
34
10
33
11
32
12
31
13
30
14
29
15 16 17 18 19 20 21 22 23 24 25 26 27 28
SM3
FB3
SM3SW
L3
PGND3
LDO1
LED_PWM
VIN_LDO02
PWM
LDO2
LDO0
SYS_IN
LDO35_REF
VIN_LDO35
QFN 56-Pin, 7 x 7 mm Package
(Top View - Not To Scale)
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated