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LTC4089EDJC-5 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC4089EDJC-5
Description  USB Power Manager with High Voltage Switching Charger
Download  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4089EDJC-5 Datasheet(HTML) 3 Page - Linear Technology

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LTC4089/LTC4089-5
3
40895fb
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VUVLO
Input Undervoltage Lockout
VIN Powers Part, Rising Threshold
3.6
3.8
4
V
dVUVLO
Input Undervoltage Lockout
Hysteresis
VIN Rising – VIN Falling
130
mV
High Voltage Regulator
VHVIN
HVIN Supply Voltage
6
36
V
IHVIN
HVIN Bias Current
Not Switching
Shutdown; HVEN = 0V
1.9
0.01
2.5
2
mA
µA
VOUT
Output Voltage with HVIN Present
Assumes HVOUT to OUT Connection (LTC4089)
Assumes HVOUT to OUT Connection (LTC4089-5)
3.45
4.85
VBAT+0.3
5
4.6
5.15
V
V
VHVUVLO
High Voltage Input Undervoltage
Lockout
VHVIN Rising
4.7
5
V
fSW
Switching Frequency
VHVOUT > 3.95V
VHVOUT = 0V
685
750
35
815
kHz
kHz
DCMAX
Maximum Duty Cycle
88
95
%
ISW(MAX)
Switch Current Limit
(Note 9)
1.5
1.95
2.3
A
VSAT
Switch VCESAT
ISW = 1A
330
mV
ILK
Switch Leakage Current
2µA
VSWD
Minimum Boost Voltage Above SW
ISW = 1A
1.85
2.2
V
IBST
BOOST Pin Current
ISW = 1A
30
50
mA
Battery Management
VBAT
Input Voltage
BAT
4.3
V
IBAT
Battery Drain Current
VBAT = 4.3V, Charging Stopped
Suspend Mode; SUSP = 5V
VHVIN = VIN = 0V, BAT Powers OUT, No Load
15
22
60
27
35
100
µA
µA
µA
VFLOAT
Regulated Output Voltage
IBAT = 2mA
IBAT = 2mA; (0°C – 85°C)
4.165
4.158
4.200
4.200
4.235
4.242
V
V
ICHG
Current Mode Charge Current
RPROG = 100k, No Load
RPROG = 50k, No Load; (0°C – 85°C)
465
900
500
1000
535
1080
mA
mA
ICHG(MAX)
Maximum Charge Current
(Note 8)
1.2
A
VPROG
PROG Pin Voltage
RPROG = 100k
RPROG = 50k
0.98
0.98
1.00
1.00
1.02
1.02
V
V
kEOC
Ratio of End-of-Charge Current to
Charge Current
VBAT = VFLOAT (4.2V)
0.085
0.1
0.11
mA/mA
ITRIKL
Trickle Charge Current
VBAT = 2V, RPROG = 100k
35
50
60
mA
VTRIKL
Trickle Charge Threshold Voltage
2.75
2.9
3
V
VCEN
Charger Enable Threshold Voltage
(VOUT – VBAT) Falling; VBAT = 4V
(VOUT – VBAT) Rising; VBAT = 4V
55
80
mV
mV
VRECHRG
Recharge Battery Threshold Voltage VFLOAT - VRECHRG
65
100
135
mV
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 < 2.8V
25
%
TLIM
Junction Temperature in Constant
Temperature Mode
105
°C
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. HVIN = 12V, BOOST = 17V, VIN = 5V, VBAT = 3.7V, HVEN = 12V,
HPWR = 5V, RPROG = 100k, RCLPROG = 2k, SUSP = 0V, unless otherwise noted.
ELECTRICAL CHARACTERISTICS


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