LTC1760 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1760' PDF : 48 Pages View PDF
LTC1760
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C (Note 6). VDCIN = 20V, VBAT1 = 12V, VBAT2 = 12V, VVDDS = 3.3V,
VVCC2 = 5.2V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Trip Points
VTR
DCDIV/LOPWR Threshold
VDCDIV or VLOPWR Falling
C-Grade (Note 6)
I-Grade (Note 6)
l 1.166 1.19 1.215
V
l 1.162 1.19 1.215
V
VTHYS
IBVT
VTSC
DCDIV/LOPWR Hysteresis Voltage
DCDIV/LOPWR Input Bias Current
Short-Circuit Comparator Threshold
VDCDIV or VLOPWR Rising
VDCDIV or VLOPWR = 1.19V
VSCP – VSCN, VCC ≥ 5V
C-Grade (Note 6)
I-Grade (Note 6)
30
mV
20
200
nA
l 90
100
115
mV
l 88
100
115
mV
VFTO
VOVSD
Fast PowerPath Turn-Off Threshold VDCDIV Rising from VCC
Overvoltage Shutdown Threshold as a VSET Rising from 0.8V until TGATE and BGATE
Percent of Programmed Charger Voltage Stop Switching
6
7
7.9
V
107
%
DACs
IRES
tIP
tILOW
IDAC Resolution
IDAC Pulse Period:
Normal Mode
Wake-Up Mode
Charging Current Granularity
IWAKE_UP Wake-Up Charging Current (Note 5)
ILIMIT Charging Current Limit
Guaranteed Monotonic
RILIMIT = 0 (Short ILIMIT to GND)
RILIMIT = 10k ±1%
RILIMIT = 33k ±1%
RILIMIT = Open (or Short ILIMIT to VCC2 )
C-Grade (Note 6)
RILIMIT = 0 (Short ILIMIT to GND)
RILIMIT = 10k ±1%
RILIMIT = 33k ±1%
RILIMIT = Open (or Short ILIMIT to VCC2 )
10
Bits
6
10
15
μs
50
ms
1
mA
2
mA
4
mA
4
mA
60
80
100
mA
l 980 1000 1070
mA
l 1960 2000 2140
mA
l 2490 3000 3210
mA
l 3920 4000 4280
mA
VRES
VSTEP
VLIMIT
VDAC Resolution
VDAC Granularity
Charging Voltage Limit
(Note 7)
Charge MUX Switches
tONC
GCH1/GCH2 Turn-On Time
tOFFC
GCH1/GCH2 Turn-Off Time
VCON
CH Gate Clamp Voltage
GCH1
GCH2
I-Grade (Note 6)
RILIMIT = 0 (Short ILIMIT to GND)
RILIMIT = 10k ±1%
RILIMIT = 33k ±1%
RILIMIT = Open (or Short ILIMIT to VCC2 )
Guaranteed Monotonic (5V < VBAT < 25V)
l 930 1000 1110
mA
l 1870 2000 2220
mA
l 2380 3000 3320
mA
l 3750 4000 4430
mA
11
Bits
16
mV
RVLIMIT = 0 (Short VLIMIT to GND)
l 8400 8432 8464
mV
RVLIMIT = 10k ±1%
l 12608 12640 12672
mV
RVLIMIT = 33k ±1%
l 16832 16864 16896
mV
RVLIMIT = 100k ±1%
l 21024 21056 21088
mV
RVLIMIT = Open (or Short VLIMIT to VCC2 )(Note 13)
l
32768
mV
VGCHX – VSCHX > 3V, CLOAD = 3000pF
VGCHX – VSCHX < 1V, from Time of
VCSN < VBATX – 30mV, CLOAD = 3000pF
ILOAD = 1μA
VGCH1 – VSCH1
VGCH2 – VSCH2
5
10
ms
15
μs
5
5.8
7
V
5
5.8
7
V
1760fa
4
Share Link: 
