LTC1759CG 查看數據表（PDF） - Linear Technology
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LTC1759CG Datasheet PDF : 28 Pages
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LTC1759
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Voltage at VCC, UV, BAT1, CLP,CLN, SPIN,
SENSE with respect to AGND ....................– 0.3V to 27V
Voltage at DCIN, BAT2 with Respect
to DGND ....................................................– 0.3V to 27V
Voltage at INTB, SDA, SCL, DCDIV with Respect
to DGND ..................................................... – 0.3V to 7V
BOOST, BOOSTC Voltage with Respect to VCC ........ 10V
Voltage at VDD with Respect to DGND ........ – 0.3V to 7V
SW Voltage with Respect to AGND .............. – 2V to VCC
GBIAS, SYNC ............................................ – 0.3V to 10V
VC, PROG, VSET Voltage with Respect
to AGND ......................................................– 0.3V to 7V
TGATE, BGATE Current Continuous .................. ±200mA
TGATE, BGATE Output Energy (per Cycle) ................ 2µJ
PGND, DGND with Respect to AGND .................... ±0.3V
Current into Any Pin ......................................... ±100mA
Operating Ambient Temperature Range ...... 0°C to 70°C
Operating Junction
Temperature Range .............................. – 40°C to 125°C
Storage Temperature ........................... – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER INFORMATION
BOOST 1
TGATE 2
SW 3
SYNC 4
SDB 5
AGND 6
UV 7
INFET 8
CLP 9
CLN 10
COMP1 11
CHGEN 12
INTB 13
SDA 14
SCL 15
VDD 16
ISET 17
DGND 18
TOP VIEW
36 PGND
35 BGATE
34 GBIAS
33 BOOSTC
32 VCC
31 BAT1
30 SPIN
29 SENSE
28 PROG
27 VC
26 VSET
25 VLIMIT
24 ILIMIT
23 BAT2
22 DCIN
21 DCDIV
20 RNR
19 THERM
G PACKAGE
36-LEAD PLASTIC SSOP
TJMAX = 125°C, θJA = 85°C/ W
ORDER PART
NUMBER
LTC1759CG
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range (TJ = 0°C to 100°C), otherwise specifications are
TA = 25°C. VCC = DCIN = 18V, VBAT1, 2 = 12.6V, VDD = 3.3V unless otherwise specified.
PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
Supply and Reference
DCIN, VCC Operating Voltage
VCC Operating Current
DCIN Operating Current
UV Lockout Threshold
VCC ≤ 24V
VDCIN = 24V
Voltage on UV Pin Rising
q 11
24
V
q
12
20
mA
q
85
150
µA
q 6.3
6.7
7.15
V
UV Pin Input Current
Battery Discharge Current
VDD Operating Voltage
VDD Operating Current
VDD Undervoltage Lockout
Switching Regulator
0V ≤ VUV ≤ 8V
VUV ≤ 0.4V, All Connected Pins
Charging, VDD = 5.5V, Shorted Thermistor
Not Charging, VDD = 5.5V
q –1
5
µA
40
80
µA
q 3.0
5.5
V
1.35
2
mA
80
150
µA
q 1.6
2.2
2.9
V
Charging Voltage Accuracy (Notes 3, 5)
Charging Current Accuracy (Note 3)
2.465V ≤ VBAT2 ≤ VMAX
RSET Tolerance = 1%
q –1
–5
1
%
5
%
2
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