Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

LTC4008 Datasheet(PDF) 10 Page - Linear Technology

Part # LTC4008
Description  Dual Smart Battery System Manager Available in 48-Lead TSSOP Package
Download  48 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4008 Datasheet(HTML) 10 Page - Linear Technology

Back Button LTC4008 Datasheet HTML 6Page - Linear Technology LTC4008 Datasheet HTML 7Page - Linear Technology LTC4008 Datasheet HTML 8Page - Linear Technology LTC4008 Datasheet HTML 9Page - Linear Technology LTC4008 Datasheet HTML 10Page - Linear Technology LTC4008 Datasheet HTML 11Page - Linear Technology LTC4008 Datasheet HTML 12Page - Linear Technology LTC4008 Datasheet HTML 13Page - Linear Technology LTC4008 Datasheet HTML 14Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 48 page
background image
LTC1760
10
1760fa
GB1O (Pin 8): BAT1 Output Switch Gate Drive. Together
with GB1I, this pin drives the gate of the P-channel switch
in series with the BAT1 input switch.
GB1I (Pin 9): BAT1 Input Switch Gate Drive. Together with
GB1O, this pin drives the gate of the P-channel switch
connected to the BAT1 input.
GB2O (Pin 10): BAT2 Output Switch Gate Drive. Together
with GB2I, this pin drives the gate of the P-channel switch
in series with the BAT2 input switch.
GB2I (Pin 11): BAT2 Input Switch Gate Drive. Together
with GB2O, this pin drives the gate of the P-channel switch
connected to the BAT2 input.
CLP (Pin 36): The Positive Input to the Supply Current
Limiting Amplifier CL1. The threshold is set at 100mV above
the voltage at the DCIN pin. When used to limit supply
current, a filter is needed to filter out the switching noise.
Battery Charging Related
VSET (Pin 13): The Tap Point of a Programmable Resistor
Divider which Provides Battery Voltage Feedback to the
Charger. A capacitor from CSN to VSET and from VSET to
GND provide necessary compensation and filtering for
the voltage loop.
ITH (Pin 14): The Control Signal of the Inner Loop of the
Current Mode PWM. Higher ITH voltage corresponds to
higher charging current in normal operation. A capacitor
of at least 0.1μF to GND filters out PWM ripple. Typical
full-scale output current is 30μA. Nominal voltage range
for this pin is 0V to 2.4V.
ISET (Pin 15): A capacitor from ISET to GND is required to
filterhigherfrequencycomponentsfromthedelta-sigmaIDAC.
ILIMIT (Pin 32): An external resistor (RILIMIT) is connected
between this pin and GND. The value of the external resis-
tor programs the range and resolution of the programmed
charger current.
VLIMIT (Pin 33): An external resistor (RVLIMIT)is connected
between this pin and GND. The value of the external resis-
tor programs the range and resolution of the voltage DAC.
CSN (Pin 34): Current Amplifier CA1 Input. Connect this
to the common output of the charger MUX switches.
CSP (Pin 35): Current Amplifier CA1 Input. This pin and
the CSN pin measure the voltage across the charge cur-
rent sense resistor, RSENSE, to provide the instantaneous
current signals required for both peak and average current
mode operation.
COMP1 (Pin 37): The Compensation Node for the Am-
plifier CL1. A capacitor is required from this pin to GND
if input current amplifier CL1 is used. At input adapter
current limit, this node rises to 1V. By forcing COMP1 to
GND, amplifier CL1 will be defeated (no adapter current
limit). COMP1 can source 10μA.
BGATE (Pin 39): Drives the gate of the bottom external
MOSFET of the battery charger buck converter.
SW (Pin 42): PWM Switch Node. Connected to the source
of the top external MOSFET. Used as reference for top
gate driver.
BOOST (Pin 43): Supply to Topside Floating Driver. The
bootstrap capacitor is returned to this pin. Voltage swing
at this pin is from a diode drop below VCC to (DCIN + VCC).
TGATE (Pin 44): Drives the gate of the top external MOSFET
of the battery charger buck converter.
SCH1 (Pin 45), SCH2 (Pin 48): Charger MUX N-Channel
Switch Source Returns. These two pins are connected to
the sources of the back-to-back switch pairs Q3/Q4 and
Q9/Q10 (see Typical Applications). A small pull-down cur-
rent source returns these nodes to 0V when the switches
are turned off.
GCH1 (Pin 46), GCH2 (Pin 47): Charger MUX N-Channel
Switch Gate Drives. These two pins drive the gates of the
back-to-back switch pairs, Q3/Q4 and Q9/Q10, between
the charger output and the two batteries (see Typical
Applications).
External Power Supply Pins
VPLUS (Pin 1): Supply. The VPLUS pin is connected via
four internal diodes to the DCIN, SCN, BAT1, and BAT2
pins. Bypass this pin with a 0.1μF capacitor and a 1μF
capacitor (see Typical Applications for complete circuit).
BAT1 (Pin 3), BAT2 (Pin 2): These two pins are the inputs
from the two batteries for power to the LTC1760.
PIN FUNCTIONS


Similar Part No. - LTC4008

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC4008 LINER-LTC4008 Datasheet
271Kb / 24P
   4A, High Efficiency, Multi-Chemistry Battery Charger
LTC4008 LINER-LTC4008 Datasheet
332Kb / 24P
   Monolithic 4A HIgh Voltage 2-Cell Li-Ion Battery Charger
LTC4008 LINER-LTC4008 Datasheet
379Kb / 32P
   High Efficiency Synchronous Step-Down Switching Regulator
LTC4008EGN LINER-LTC4008EGN Datasheet
271Kb / 24P
   4A, High Efficiency, Multi-Chemistry Battery Charger
LTC4008EGN-1 LINER-LTC4008EGN-1 Datasheet
271Kb / 24P
   4A, High Efficiency, Multi-Chemistry Battery Charger
More results

Similar Description - LTC4008

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC1760 LINER-LTC1760 Datasheet
370Kb / 44P
   Dual Smart Battery System Manager
LTC1760 LINER-LTC1760_1 Datasheet
340Kb / 44P
   Dual Smart Battery System Manager
LTC1760 LINER-LTC1760_15 Datasheet
376Kb / 48P
   Dual Smart Battery System Manager
LTC4110 LINER-LTC4110 Datasheet
445Kb / 52P
   Battery Backup System Manager
LTC4110 LINER-LTC4110_15 Datasheet
460Kb / 52P
   Battery Backup System Manager
LT6301 LINER-LT6301_15 Datasheet
252Kb / 16P
   Dual 500mA, Differential xDSL Line Driver in 28-Lead TSSOP Package
LT6301 LINER-LT6301 Datasheet
225Kb / 16P
   Dual 500mA, Differential xDSL Line Driver in 28-Lead TSSOP Package
logo
Estek Electronics Co. L...
24C64 ESTEK-24C64_1 Datasheet
1Mb / 12P
   available in space-saving 8-lead PDIP, 8-lead SOP, and 8-lead TSSOP packages
logo
Maxim Integrated Produc...
MAX1259 MAXIM-MAX1259_V01 Datasheet
1,004Kb / 8P
   Battery Manager
2014
logo
KEC(Korea Electronics)
KMC7D0CN20C KEC-KMC7D0CN20C Datasheet
368Kb / 1P
   TSSOP-8 PACKAGE
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48


Datasheet Download

Go To PDF Page


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


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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