Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

LTC3557 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC3557
Description  USB Power Manager with Li-Ion Charger and Three Step-Down Regulators
Download  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3557 Datasheet(HTML) 3 Page - Linear Technology

  LTC3557 Datasheet HTML 1Page - Linear Technology LTC3557 Datasheet HTML 2Page - Linear Technology LTC3557 Datasheet HTML 3Page - Linear Technology LTC3557 Datasheet HTML 4Page - Linear Technology LTC3557 Datasheet HTML 5Page - Linear Technology LTC3557 Datasheet HTML 6Page - Linear Technology LTC3557 Datasheet HTML 7Page - Linear Technology LTC3557 Datasheet HTML 8Page - Linear Technology LTC3557 Datasheet HTML 9Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 28 page
background image
LTC3557/LTC3557-1
3
35571fc
POWER MANAGER ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VBUS = 5V, VBAT = 3.8V, ILIM0 = ILIM1 = 5V, WALL = EN1 = EN2 = EN3 = 0V, RPROG = 2k, RCLPROG = 2.1k.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDUVLO
VBUS to VOUT Differential Undervoltage
Lockout
Rising Threshold
Falling Threshold
50
−50
100
mV
mV
RON_LIM
Input Current Limit Power FET
On-Resistance (Between VBUS and VOUT)
0.2
Ω
Battery Charger
VFLOAT
VBAT Regulated Output Voltage
LTC3557
LTC3557, 0°C ≤ TA ≤ 85°C
LTC3557-1
LTC3557-1, 0°C ≤ TA ≤ 85°C
4.179
4.165
4.079
4.065
4.200
4.200
4.100
4.100
4.221
4.235
4.121
4.135
V
V
V
V
ICHG
Constant Current Mode Charge Current
RPROG = 1k, Input Current Limit = 2A
RPROG = 2k, Input Current Limit = 1A
RPROG = 5k, Input Current Limit = 400mA
950
465
180
1000
500
200
1050
535
220
mA
mA
mA
IBAT
Battery Drain Current
VBUS > VUVLO, Charger Off, IOUT = 0μA
VBUS = 0V, IOUT = 0μA (Ideal Diode Mode)
6
55
27
100
μA
μA
VPROG
VPROG(TRKL)
PROG Pin Servo Voltage
PROG Pin Servo Voltage in Trickle Charge
BAT < VTRKL
1.000
0.100
V
V
hPROG
Ratio of IBAT to PROG Pin Current
1000
mA/mA
ITRKL
Trickle Charge Current
BAT < VTRKL
40
50
60
mA
VTRKL
Trickle Charge Rising Threshold
Trickle Charge Falling Threshold
BAT Rising
BAT Falling
2.5
2.85
2.75
3.0
V
V
ΔVRECHRG
Recharge Battery Threshold Voltage
Threshold Voltage Relative to VFLOAT
−75
−100
−115
mV
tTERM
Safety Timer Termination Period
Timer Starts when BAT = VFLOAT – 50mV
3.2
4
4.8
Hour
tBADBAT
Bad Battery Termination Time
BAT < VTRKL
0.4
0.5
0.6
Hour
hC/10
End-of-Charge Indication Current Ratio
(Note 6)
0.085
0.1
0.115
mA/mA
RON(CHG)
Battery Charger Power FET On-Resistance
(Between VOUT and BAT)
200
TLIM
Junction Temperature in Constant
Temperature Mode
110
°C
NTC
VCOLD
Cold Temperature Fault Threshold Voltage
Rising NTC Voltage
Hysteresis
75
76
1.3
77
%VVNTC
%VVNTC
VHOT
Hot Temperature Fault Threshold Voltage
Falling NTC Voltage
Hysteresis
34
35
1.3
36
%VVNTC
%VVNTC
VDIS
NTC Disable Threshold Voltage
Falling NTC Voltage
Hysteresis
1.2
1.7
50
2.2
%VVNTC
mV
INTC
NTC Leakage Current
NTC = VBUS = 5V
−50
50
nA
Ideal Diode
VFWD
Forward Voltage Detection
IOUT = 10mA
5
15
25
mV
RDROPOUT
Diode On-Resistance, Dropout
IOUT = 1A
200
IMAX
Diode Current Limit
(Note 7)
3.6
A
Always On 3.3V Supply
VLDO3V3
Regulated Output Voltage
0mA < ILDO3V3 < 25mA
3.1
3.3
3.5
V
ROL(LDO3V3) Open-Loop Output Resistance
BAT = 3.0V, VBUS = 0V
24
Ω
RCL(LDO3V3) Closed-Loop Output Resistance
3.2
Ω


Similar Part No. - LTC3557

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC3557-1 LINER-LTC3557-1_15 Datasheet
323Kb / 28P
   USB Power Manager with Li-Ion Charger and Three Step-Down Regulators
LTC3557 LINER-LTC3557_15 Datasheet
323Kb / 28P
   USB Power Manager with Li-Ion Charger and Three Step-Down Regulators
More results

Similar Description - LTC3557

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC3557-1 LINER-LTC3557-1_15 Datasheet
323Kb / 28P
   USB Power Manager with Li-Ion Charger and Three Step-Down Regulators
LTC3557 LINER-LTC3557_15 Datasheet
323Kb / 28P
   USB Power Manager with Li-Ion Charger and Three Step-Down Regulators
LTC3554-1 LINER-LTC3554-1_15 Datasheet
525Kb / 36P
   Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
LTC3554 LINER-LTC3554_15 Datasheet
525Kb / 36P
   Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
LTC3554-2 LINER-LTC3554-2_15 Datasheet
525Kb / 36P
   Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
LTC3554-3 LINER-LTC3554-3_15 Datasheet
525Kb / 36P
   Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
LTC3554 LINER-LTC3554 Datasheet
435Kb / 36P
   Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
LTC4067 LINER-LTC4067_15 Datasheet
233Kb / 20P
   USB Power Manager with OVP and Li-Ion/Polymer Charger
LTC4067 LINER-LTC4067 Datasheet
216Kb / 20P
   USB Power Manager with OVP and Li-Ion/Polymer Charger
LTC4085EDE LINER-LTC4085EDE Datasheet
290Kb / 24P
   USB Power Manager with Ideal Diode Controller and Li-Ion Charger
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


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   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