MAX769 查看數據表（PDF） - Maxim Integrated
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MAX769 Datasheet PDF : 16 Pages
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2 or 3-Cell, Step-Up/Down,
Two-Way Pager System IC
ABSOLUTE MAXIMUM RATINGS
BATT, OUT, NICD, LBO, RSO to AGND...................-0.3V to +6V
REG1, REG2, OFS, REF, R2IN to AGND .....-0.3V to (OUT + 0.3V)
SCL, SDO, SDI, CS, SYNC, FILT, DR2IN,
CH0, LBI, RSIN to AGND......................-0.3V to (REG1 + 0.3V)
REG3 .......................................................-0.3V to (REG2 + 0.3V)
DR1, DR2 to DRGND ...............................-0.3V to (BATT + 0.3V)
PGND, DRGND to AGND ......................................-0.3V to +0.3V
LX1 to PGND .............................................-0.3V to (OUT + 0.3V)
LX2 to PGND ............................................-0.3V to (BATT + 0.3V)
Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8mW/°C above +70°C) ..........................640mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(OUT = 3.0V, BATT = 3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
GENERAL PERFORMANCE
CONDITIONS
MIN TYP MAX
BATT Typical Operating Range
(Note 2)
Run or Coast Mode
1.5
5.5
BATT Minimum Start-Up Voltage
(Note 3)
TA = +25°C
1.6
2.0
Coast Mode Supply Current (Note 4)
Run Mode Supply Current (Note 4)
BATT Supply Current (Note 5)
REG2, REG3 and CH DAC off, VOUT = 2.8V
REG2, REG3 and CH DAC on
Coast Mode
13
25
875 1350
4
10
NICD Input Current, Standby
(Note 6)
Charger and Backup Modes off, NICD = 3.6V
1.2
3
NICD Input Supply Current, Backup
(Note 7)
Backup Mode, NICD = 3.6V, OUT = 3V
20
40
NICD Input Current, Power Fail
(Note 8)
Charger and Backup Modes off, BATT = 0V,
OUT = 0V
1.2
3
REG2 Supply Current (Note 4)
REG3 Supply Current (Note 4)
CH DAC Supply Current (Note 4)
Reference Voltage
DR1, DR2 On-Resistance
DR1, DR2 Leakage Current
SDO Output Low
SDO Output High
Logic Input Level Low
Incremental supply current when on
Incremental supply current when on
Incremental supply current when on
IREF = 0 to 20µA, OUT = 1.8V to 4.9V
IDR = 120mA
TA = +25°C
TA = -40°C to +85°C
VDR = 5V
ISDO = 100µA
ISDO = -100µA, from REG1
Includes CS, SDI, SCL, DR2IN, and SYNC
50
20
30
-1.5% 1.28
1.8
1
VREG1
- 0.2
0.4
1.5%
2.8
3.6
250
200
Logic Input Level High
Includes CS, SDI, SCL, DR2IN, and SYNC
VREG1
- 0.4
Logic Input Current
Logic Input = 0 to 3.3V; includes CS, SDI, SCL,
DR2IN, and SYNC
-1
1
UNITS
V
V
µA
µA
µA
µA
µA
µA
µA
µA
µA
V
Ω
nA
mV
V
V
V
µA
2 _______________________________________________________________________________________
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