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LTC4090EDJC-TRPBF Datasheet(PDF) 4 Page - Linear Technology

Part # LTC4090EDJC-TRPBF
Description  USB Power Manager with 2A High Voltage Bat-Track Buck Regulator
Download  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4090EDJC-TRPBF Datasheet(HTML) 4 Page - Linear Technology

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background image
LTC4090/LTC4090-5
4
4090fa
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tTIMER
TIMER Accuracy
VBAT = 4.3V
–10
10
%
Recharge Time
Percent of Total Charge Time
50
%
Low Battery Trickle Charge Time
Percent of Total Charge Time,
VBAT <2.9V
25
%
TLIM
Junction Temperature in Constant
Temperature Mode
105
°C
Internal Ideal Diode
RFWD
Incremental Resistance, VON Regulation IOUT = 100mA
125
m
Ω
RDIO, ON
On-Resistance VBAT to VOUT
IOUT = 600mA
215
m
Ω
VFWD
Voltage Forward Drop (VBAT – VOUT)IOUT = 5mA
IOUT = 100mA
IOUT = 600mA
10
30
55
160
50
mV
mV
mV
VOFF
Diode Disable Battery Voltage
2.7
V
IFWD
Load Current Limit for VON Regulation
550
mA
ID(MAX)
Diode Current Limit
2.2
A
External Ideal Diode
VFWD, EXT
External Diode Forward Voltage
20
mV
Logic (⎯C⎯H⎯R⎯G, ⎯H⎯V⎯P⎯R, TIMER, SUSP, HPWR, HVEN, PG, SYNC)
VCHG, SD
Charger Shutdown Threshold Voltage
on TIMER
0.14
0.4
V
ICHG, SD
Charger Shutdown Pull-Up Current on
TIMER
VTIMER = 0V
514
μA
VOL
Output Low Voltage
(⎯C⎯H⎯R⎯G, ⎯H⎯V⎯P⎯R); ISINK = 5mA
0.1
0.4
V
VIH
Input High Voltage
SUSP, HPWR
1.2
V
VIL
Input Low Voltage
SUSP, HPWR
0.4
V
VHVEN, H
HVEN High Threshold
2.3
V
VHVEN, L
HVEN Low Threshold
0.3
V
IPULLDN
Logic Input Pull-Down Current
SUSP, HPWR
2
μA
IHVEN
HVEN Pin Bias Current
HVEN = 2.5V
5
10
μA
VPG
PG Threshold
HVOUT Rising
2.8
V
ΔVPG
PG Hysteresis
35
mV
IPGLK
PG Leakage
PG = 5V
0.1
1
μA
IPG
PG Sink Current
PG = 0.4V
100
900
μA
VSYNC, L
SYNC Low Threshold
0.5
V
VSYNC, H
SYNC High Threshold
0.8
V
ISYNC
SYNC Pin Bias Current
VSYNC = 0V
0.1
μA
ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. HVIN = HVEN = 12V, BOOST = 17V, VIN = HPWR = 5V, VBAT = 3.7V,
RPROG = 100k, RCLPROG = 2k and SUSP = 0V, unless otherwise noted.


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