LTC1960 データシートの表示（PDF） - Linear Technology
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LTC1960 Datasheet PDF : 28 Pages
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LTC1960
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range (Note 7), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT1 = 12V, VBAT2 = 12V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP
MAX UNITS
DACs
IRES
IDAC Resolution
tIP
tILOW
IDAC Pulse Period:
Normal Mode
Low Current Mode
VRES
VDAC Resolution
VSTEP VDAC Granularity
VOFF
VDAC Offset
tVP
VDAC Pulse Period
Charge MUX Switches
Guaranteed Monotonic Above IMAX/16
Guaranteed Monotonic (5V < VBAT < 25V)
(Note 6)
10
bits
6
10
15
µs
50
ms
11
bits
16
mV
0.8
V
7
11
16.5
µs
tONC
GCH1/GCH2 Turn-On Time
VGCHX – VSCHX > 3V, CLOAD = 3nF
5
10
ms
tONC
GCH1/GCH2 Turn-Off Time
VGCHX – VSCHX < 1V, from Time of VCSN <
VBATX – 30mV, CLOAD = 3nF
3
7
µs
VCON
CH Gate Clamp Voltage
GCH1
GCH2
ILOAD = 1µA
VGCH1 – VSCH1
VGCH2 – VSCH2
5
5.8
7
V
5
5.8
7
V
VCOFF
CH Gate Off Voltage
GCH1
GCH2
ILOAD = 10µA
VGCH1 – VSCH1
VGCH2 – VSCH2
–0.8 –0.4
0
V
–0.8 –0.4
0
V
VTOC
CH Switch Reverse Turn-Off Voltage
VCSN – VBATX, 5V ≤ VBATX ≤ 28V
l5
20
40
mV
VFC
CH Switch Forward Regulation Voltage
VBATX – VCSN, 5V ≤ VBATX ≤ 28V
l 15
35
60
mV
IOC(SRC)
IOC(SNK)
GCH1/GCH2 Active Regulation:
Max Source Current
Max Sink Current
VGCHX – VSCHX = 1.5V
–2
µA
2
µA
VCHMIN BATX Voltage Below Which Charging Is Inhibited (Note 8)
3.5
4.7
V
PowerPath Switches
tDLY
tPPB
tONPO
Blanking Period After UVLO Trip
Blanking Period After LOPWR Trip
GB1O/GB2O/GDCO Turn-On Time
Switches Held Off
Switches in 3-Diode Mode
VGS < –3V, from Time of Battery/DC
l
Removal, or LOPWR Indication
250
ms
1
sec
5
10
µs
tOFFPO GB1O/GB2O/GDCO Turn-Off Time
VGS > –1V, from Time of Battery/DC
l
Removal, or LOPWR Indication
3
7
µs
VPONO
VPOFFO
VTOP
VFP
IOP(SRC)
IOP(SNK)
Output Gate Clamp Voltage
GB1O
GB2O
GDCO
Output Gate Off Voltage
GB1O
GB2O
GDCO
PowerPath Switch Reverse Turn-Off Voltage
PowerPath Switch Forward Regulation Voltage
GDCI/GB1I/GB2I Active Regulation
Source Current
Sink Current
ILOAD = 1µA
Highest (VBAT1 or VSCP) – VGB1O
Highest (VBAT2 or VSCP) – VGB2O
Highest (VDCIN or VSCP) – VGDCO
ILOAD = –25µA
Highest (VBAT1 or VSCP) – VGB1O
Highest (VBAT2 or VSCP) – VGB2O
Highest (VDCIN or VSCP) – VGDCO
VSCP – VBATX or VSCP – VDCIN
6V ≤ VSCP ≤ 28V
VBATX – VSCP or VDCIN – VSCP
6V ≤ VSCP ≤ 28V
(Note 4)
4.75 6.25
7
V
4.75 6.25
7
V
4.75 6.25
7
V
0.18
0.25
V
0.18
0.25
V
0.18
0.25
V
l5
20
60
mV
l0
25
50
mV
–4
µA
75
µA
1960fb
4
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