參數(shù)資料
型號: MAX847
廠商: Maxim Integrated Products, Inc.
英文描述: Quadruple 2-Line To 1-Line Data Selectors/Multiplexers 16-CDIP -55 to 125
中文描述: 1節(jié)電池、升壓型、雙向?qū)ず魴C(jī)系統(tǒng)電源IC
文件頁數(shù): 2/18頁
文件大?。?/td> 167K
代理商: MAX847
M
1-Cell, S tep-Up
Two-Way Pager S ystem IC
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
BATT, OUT, NICD, LBO, RSO to AGND...................-0.3V to +6V
REG1, OFS, REG2, REF, R2IN to AGND...-0.3V to (OUT + 0.3V)
SCL, SDO, SDI,
CS
, SYNC, FILT, DR2IN,
CH0, LBI, RSIN, RUN 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
ELECTRICAL CHARACTERISTICS
(OUT = 3.0V, BATT = 1.2V, NICD = 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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.
LX1 to PGND .............................................-0.3V to (OUT + 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
28-Pin QSOP (derate 8mW/°C above +70°C) .............640mW
Operating Temperature Range ...........................-40°C to +85°C
J unction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
T
A
= +25°C
Run or Coast Mode
Incremental supply current when on
I
REF
= 0 to 20μA, OUT = 1.8V to 4.9V
REG2, REG3 and CH DAC off, V
OUT
= 2.8V
REG2, REG3 and CH DAC on
Coast mode
Incremental supply current when on
CONDITIONS
V
0.9
1.1
BATT Minimum Start-Up Voltage
(Note 3)
Coast Mode Supply Current (Note 4)
Run Mode Supply Current (Note 4)
BATT Supply Current (Note 5)
NICD Input Current, Standby
(Note 6)
V
0.8
OUT x
0.8
BATT Typical Operating Range
(Note 2)
μA
V
30
1.28
1.8
CH DAC Supply Current (Note 4)
Reference Voltage
μA
μA
μA
13
875
0.5
25
1350
2
μA
20
REG3 Supply Current (Note 4)
UNITS
MIN
TYP
MAX
PARAMETER
-1.5%
1.5%
2.8
3.6
I
DR
= 120mA
DR1, DR2 On-Resistance
V
DR
= 5V
I
SDO
= 100μA
nA
mV
1
250
200
DR1, DR2 Leakage Current
SDO Output Low
T
A
= +25°C
T
A
= -40°C to +85°C
I
SDO
= -100μA, from REG1
V
V
REG1
- 0.2
0.4
SDO Output High
Includes
CS
, SDI, SCL, DR2IN, SYNC, and RUN
V
Logic Input Level Low
Includes
CS
, SDI, SCL, DR2IN, SYNC, and RUN
V
V
REG1
- 0.4
Logic Input Level High
50% duty cycle
MHz
ns
ns
5
SCL Maximum Clock Rate
SDI Setup Time, t
DS
SDI Hold Time, t
DH
100
50
Logic Input = 0 to 3.3V; includes
CS
, SDI, SCL,
DR2IN, SYNC, and RUN
μA
-1
1
Logic Input Current
Charger and Backup Modes off, NICD = 3.6V
μA
1.2
3
Incremental supply current when on
μA
Backup mode, NICD = 3.6V, OUT = 3V
50
REG2 Supply Current (Note 4)
μA
20
40
NICD Input Supply Current, Backup
(Note 7)
Charger and Backup Modes off,
BATT = 0V and OUT = 0V
μA
1.2
3
NICD Input Current, Power Fail
(Note 8)
GENERAL PERFORMANCE
SERIAL-INTERFACE TIMING SPECIFICATIONS
(Note 9)
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