Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

LTC4100 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC4100
Description  Smart Battery Charger Controller
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4100 Datasheet(HTML) 6 Page - Linear Technology

Back Button LTC4100 Datasheet HTML 2Page - Linear Technology LTC4100 Datasheet HTML 3Page - Linear Technology LTC4100 Datasheet HTML 4Page - Linear Technology LTC4100 Datasheet HTML 5Page - Linear Technology LTC4100 Datasheet HTML 6Page - Linear Technology LTC4100 Datasheet HTML 7Page - Linear Technology LTC4100 Datasheet HTML 8Page - Linear Technology LTC4100 Datasheet HTML 9Page - Linear Technology LTC4100 Datasheet HTML 10Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 24 page
background image
LTC4100
6
sn4100 4100is
TGATE (Pin 1): Drives the Top External P-MOSFET of the
Battery Charger Buck Converter.
PGND (Pin 2): High Current Ground Return for BGATE
Driver.
BGATE (Pin 3): Drives the Bottom External N-MOSFET of
the Battery Charger Buck Converter.
INFET (Pin 4): Drives the Gate of the External Input
P-MOSFET.
DCIN (Pin 5): External DC Power Source Input.
CHGEN (Pin 6): Digital Bidirectional Pin to Enable Charger
Function. This pin is connected as a wired AND bus.
The following events will cause the POWER_FAIL bit in
the ChargerStatus register to become set:
1. An external device pulling the CHGEN signal to within
0.9V to GND;
2. The AC adapter voltage is not above the battery
voltage.
SMBALERT (Pin 7): Active Low Interrupt Output to Host
(referred to as the SMBALERT# signal in the SMBus
Revision 1.1 specification). Signals host that there has
been a change of status in the charger registers and that
the host should read the LTC4100 status registers to
determine if any action on its part is required. This signal
can be connected to the optional SMBALERT# line of the
SMBus. Open drain with weak current source pull-up to
VDD (with Schottky to allow it to be pulled to 5V externally).
SDA (Pin 8): SMBus Data Signal from Main (host-con-
trolled) SMBus. External pull-up resistor is required.
SCL (Pin 9): SMBus Clock Signal from Main (host-con-
trolled) SMBus. External pull-up resistor is required.
ACP (Pin 10): This Output Indicates the Value of the DCDIV
Comparator. It can be used to indicate whether AC is
present or not.
DCDIV (Pin 11): Supply Divider Input. This is a high
impedance comparator input with a 1.2V threshold (rising
edge) and hysteresis.
GND (Pin 12): Ground for Digital and Analog Circuitry.
PI FU CTIO S
ILIM (Pin 13): An external resistor is connected between
this pin and GND. The value of the external resistor
programs the range and resolution of the programmed
charger current.
VLIM (Pin 14): An external resistor is connected between
this pin and GND. The value of the external resistor
programs the range and resolution of the charging volt-
age.
THB (Pin 15): SafetySignal Force/Sense Pin to Smart
Battery. See description of operation for more detail. The
maximum allowed combined capacitance on THA, THB
and SafetySignal is 1nF (see Figure 4). A series resistor
54.9k needs to be connected between this pin and the
battery’s SafetySignal for this circuit to work correctly.
THA (Pin 16): SafetySignal Force/Sense Pin to Smart
Battery. See description of operation for more detail. The
maximum allowed combined capacitance on THA, THB
and SafetySignal is 1nF (see Figure 4). A series resistor
1130
Ω needs to be connected between this pin and the
battery’s SafetySignal for this circuit to work correctly.
VDD (Pin 17): Power Supply Input for the LTC4100 Digital
Circuitry. Bypass this pin with 0.1
µF. Typically between
3.3V and 5VDC.
VSET (Pin 18): Tap Point of the Programmable Resistor
Divider, which Provides Battery Voltage Feedback to the
Charger.
ITH (Pin 19): Control Signal of the Inner Loop of the
Current Mode PWM. Higher ITH corresponds to higher
charging current in normal operation. A 0.0015
µF capaci-
tor to GND filters out PWM ripple. Typical full-scale output
current is 40
µA. Nominal voltage range for this pin is 0V
to 3V.
IDC (Pin 20): Bypass to GND with a 0.082µF Capacitor.
CSP (Pin 21): Current Amplifier CA1 Input. This pin and
the BAT pin measure the voltage across the sense resistor,
RSENSE, to provide the instantaneous current signals re-
quired for both peak and average current mode operation.
BAT (Pin 22): Battery Sense Input and the Negative
Reference for the Current Sense Resistor. A bypass ca-
pacitor of at least 10
µF is required.


Similar Part No. - LTC4100

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC4100 LINER-LTC4100 Datasheet
371Kb / 48P
   Dual Smart Battery System Manager Available in 48-Lead TSSOP Package
LTC4100 LINER-LTC4100 Datasheet
325Kb / 30P
   Smart Battery Charger Controller
LTC4100EGPBF LINER-LTC4100EGPBF Datasheet
252Kb / 30P
   Smart Battery Charger Controller
LTC4100EGTRPBF LINER-LTC4100EGTRPBF Datasheet
252Kb / 30P
   Smart Battery Charger Controller
LTC4100 LINER-LTC4100_09 Datasheet
252Kb / 30P
   Smart Battery Charger Controller
More results

Similar Description - LTC4100

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC4100 LINER-LTC4100_09 Datasheet
252Kb / 30P
   Smart Battery Charger Controller
LTC4101 LINER-LTC4101_15 Datasheet
260Kb / 30P
   Smart Battery Charger Controller
LTC4100 LINER-LTC4100_15 Datasheet
325Kb / 30P
   Smart Battery Charger Controller
LTC4101 LINER-LTC4101 Datasheet
296Kb / 28P
   Smart Battery Charger Controller
LTC1759 LINER-LTC1759 Datasheet
362Kb / 28P
   Smart Battery Charger
LTC1759 LINER-LTC1759_15 Datasheet
300Kb / 28P
   Smart Battery Charger
logo
Silicon Standard Corp.
SS6781A SSC-SS6781A Datasheet
844Kb / 18P
   Battery Charger Controller
logo
Renesas Technology Corp
M62254FP RENESAS-M62254FP Datasheet
233Kb / 12P
   Standard Battery Charger Controller
logo
Mitsubishi Electric Sem...
M62254FP MITSUBISHI-M62254FP Datasheet
68Kb / 6P
   Standard Battery Charger Controller
logo
Texas Instruments
BQ24702 TI1-BQ24702_16 Datasheet
886Kb / 37P
[Old version datasheet]   MULTICHEMISTRY BATTERY CHARGER CONTROLLER
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


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