LTC4155 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC4155
Linear Technology
'LTC4155' PDF : 52 Pages View PDF
LTC4155
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA ≈ TJ = 25°C (Note 2). VBUS = 5V, BATSNS = 3.7V, DVCC = 3.3V,
RCLPROG1 = RCLPROG2 = 1.21k, RPROG = 499Ω, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
VWALLGTPROT
VUSBGTLOAD,
VWALLGTLOAD
IUSBSNSQ
WALLGT Output Voltage Protected
USBGT, WALLGT Voltage Under
Load
USBSNS Quiescent Current
IWALLSNSQ WALLSNS Quiescent Current
tRISE
OVGCAP Time to Reach Regulation
IRQ Pin Characteristics
IIRQ
IRQ Pin Leakage Current
VIRQ
IRQ Pin Output Low Voltage
WALLSNS > VWALLOVLO
5V Through 3.6k into WALLSNS, USBSNS,
IUSBGT, IWALLGT = 1μA
VUSBSNS = 5V, VUSBSNS > VWALLSNS
VUSBSNS = 5V, VWALLSNS > VUSBSNS
VWALLSNS = 5V, VWALLSNS > VUSBSNS
VWALLSNS = 5V, VUSBSNS > VWALLSNS
COVGCAP = 1nF
VIRQ = 5V
IIRQ = 5mA
ID Pin Characteristics
IID
VID_OTG
ID Pin Pull-Up Current
ID Pin Threshold Voltage
VID = 0V
ID Pin Falling
Hysteresis
Overtemperature Battery Conditioner
IBATOVERTEMP Overtemp Battery Discharge
Current
VBATOVERTEMP Overtemp Battery Voltage Target
Thermistor Measurement System
Only When Enabled via I2C Control
Only When Enabled via I2C Control
κOFFSET
VNTC / VNTCBIAS A/D Lower Range VNTC / VNTCBIAS Ratio Below Which Only 0x00
End
Is Returned
κHIGH
VNTC / VNTCBIAS A/D Upper Range VNTC / VNTCBIAS Ratio Above Which Only 0x7F
End
Is Returned
κSPAN
A/D Span Coefficient
(Decimal Format)
dTOO_COLD
NTCVAL at NTC_TOO_COLD
(Decimal Format)
Warning Threshold
Reset Threshold
dTOO_WARM NTCVAL at NTC_TOO_WARM
(Decimal Format)
Warning Threshold
Reset Threshold
dHOT_FAULT NTCVAL at HOT_FAULT
(Decimal Format)
Fault Threshold
Reset Threshold
INTC
NTC Leakage Current
Ideal Diode
VFWD
I2C Port
DVCC
Forward Voltage Detection
I2C Logic Reference Level
Input Power Available, Battery Charger Off
(Note 3)
IDVCCQ
VDVCC_UVLO
ADDRESS
DVCC Current
DVCC UVLO
I2C Address
SCL/SDA = 0kHz
VIH,SDA,SCL
VIL,SDA,SCL
IIH,SDA,SCL
Input High Threshold
Input Low Threshold
Input Leakage High
SDA, SCL = DVCC
MIN TYP MAX
0
8.4
8.9
27
54
27
54
1.2
UNITS
V
V
μA
μA
μA
μA
ms
1
μA
75
100
mV
35
55
85
μA
0.5
0.86 0.95
V
0.2
V
125
mA
3.85
V
0.113
V/V
0.895
V/V
6.091 6.162 6.191 mV/V/LSB
102
102
102
98
98
98
41
41
41
45
45
45
19
19
19
23
23
23
–100
100
Count
Count
Count
Count
Count
Count
nA
15
mV
1.7
VMAX
0.25
1.0
0001_001[R/W]b
70
30
–1
1
V
μA
V
% DVCC
% DVCC
μA
4155fc
7
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