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LTC4101 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC4101
Description  Smart Battery Charger Controller
Download  30 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4101 Datasheet(HTML) 4 Page - Linear Technology

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LTC4101
4
4101fa
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDCIN = 20V, VDD = 3.3V, VBAT = 4V unless otherwise noted. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VBGATE at Shutdown
ITGATE = 1μA
100
mV
AC Present Comparator
VACP
DCDIV Threshold
VDCDIV Rising from 1V to 1.4V
l
1.14
1.20
1.26
V
DCDIV Hysteresis
25
mV
DCDIV Input Bias Current
VDCDIV = 1.2V
–1
1
μA
ACP VOH
IACP = –2mA
2
V
ACP VOL
IACP = 1mA
0.5
V
DCDIV to ACP Delay
VDCDIV = 1.3V
10
μs
SafetySignal Decoder
SafetySignal Trip (RES_COLD/RES_OR)
RTHA = 1130Ω ±1%, CTH = 1nF (Note 6)
RTHB = 54.9Ω ±1%
l
95
100
105
SafetySignal Trip (RES_IDEAL/RES_COLD)
RTHA = 1130Ω ±1%, CTH = 1nF (Note 6)
RTHB = 54.9Ω ±1%
l
28.5
30
31.5
SafetySignal Trip (RES_HOT/RES_IDEAL)
RTHA = 1130Ω ±1%, CTH = 1nF (Note 6)
RTHB = 54.9Ω ±1%
l
2.85
3
3.15
SafetySignal Trip (RES_UR/RES_HOT)
RTHA = 1130Ω ±1%, CTH = 1nF (Note 6)
RTHB = 54.9Ω ±1%
l
425
500
575
Ω
Time Between SafetySignal Measurements
DCDIV = 1.3V
DCDIV = 1V
32
250
ms
ms
DACs
Charging Current Resolution
Guaranteed Monotonic Above IMAX/16
10
Bits
Charging Current Granularity
RILIM = 0
RILIM = 10k ±1%
RILIM = 33k ±1%
RILIM = Open (or Short to VDD)
1
2
4
4
mA
mA
mA
mA
Wake-Up Charging Current (IWAKE-UP)
All Values of RILIM
All Values of RVLIM
80 (Note
5)
mA
Charging Current Limit
CSP – BAT
RILIM = 0 (0-1A)
Charging Current = 0x03FF (0x0400 Note 7)
97.3
107.3
mV
RILIM = 10k ±1% (0-2A)
Charging Current = 0x07FE (0x0800 Note 7)
97.3
107.3
mV
RILIM = 33k ±1% (0-3A)
Charging Current = 0x0BFC (0x0C00 Note 7)
72.3
82.3
mV
RILIM = 0pen (or Short to VDD) (0-4A)
Charging Current = 0x0FFC (0x1000 Note 7)
l
97.3
107.3
mV
Charging Voltage Resolution
Guaranteed Monotonic (2.9V ≤ VBAT ≤ 5.6V)
11
Bits
Charging Voltage Granularity
16
mV
Charging Voltage Limit
RVLIM = 0
Charging Voltage = 0x1090 (Note 7)
4.206
4.240
4.274
V
RVLIM = 10k ±1%
Charging Voltage = 0x10D0 (Note 7)
4.270
4.304
4.338
V
RVLIM = 33k ±1%
Charging Voltage = 0x1150 (Note 7)
4.397
4.432
4.467
V
RVLIM = 100k ±1%
Charging Voltage = 0x11A0 (Note 7)
4.476
4.512
4.548
V
RVLIM = 0pen (or Short to VDD)
Charging Voltage = 0x1580 (Note 7)
5.460
5.504
5.548
V


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