參數(shù)資料
型號(hào): MAX769
廠商: Maxim Integrated Products, Inc.
英文描述: Dual J-K Negative-Edge-Triggered Flip-Flops With Preset And Clear 16-CDIP -55 to 125
中文描述: 2或3節(jié)電池、升/降壓型、雙向?qū)ず魴C(jī)系統(tǒng)電源IC
文件頁(yè)數(shù): 5/16頁(yè)
文件大?。?/td> 161K
代理商: MAX769
M
2 or 3-Cell, S tep-Up/Down,
Two-Way Pager S ystem IC
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(OUT = 3.0V, BATT = 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
Note 1:
Note 2:
Note 3:
Specifications to -40°C are guaranteed by design, not production tested.
This is not a tested parameter, since the IC is powered from OUT, not BATT.
Minimum start-up voltage is tested by determining when the LX pins can draw at least 15mA for 0.5μs (min) at a 285kHz
(min) repetition rate. This guarantees that the IC will deliver at least 200μA at the OUT pin.
This supply current is drawn from the OUT pin. Current drain from the battery depends on voltages at BATT and OUT and
on the DC-to-DC converter’s efficiency.
Current into BATT pin in addition to the supply current at OUT. This current is roughly constant from Coast to Run Mode.
Current into NICD pin when NICD isn’t being charged and isn’t regulating OUT.
Current into NICD pin when NICD is regulating OUT. Doesn’t include current drawn from OUT by the rest of the circuit.
Measured by setting the OUT regulation point to 2.8V and holding OUT at 3.0V.
Current into the NICD pin when BATT and OUT are both at 0V. This test guarantees that NICD won’t draw significant cur-
rent when the main battery is removed and backup is not activated.
Serial-interface timing specifications are not tested and are provided for design guidance only. Serial-interface functionali-
ty is tested by clocking data in at 5MHz with a 50% duty-cycle clock and checking for proper operation. With OUT set
below 2.5V, the serial-interface clock frequency should be reduced to 1MHz to ensure proper operation.
Note 10:
This specification is not directly tested but is guaranteed by correlation to LX on-resistance and current-limit tests.
Note 11:
Measured by using the internal feedback network and Coast-Mode error comparator to regulate OUT. Doesn’t include
ripple voltage due to inductor currents.
Note 12:
Measured by using the internal feedback network and Run-Mode error comparator to regulate OUT. Doesn’t include ripple
voltage due to inductor currents.
Note 13:
Uses the OUT measurement techniques described for the OUT error, Coast Mode, and OUT error Run Mode specifica-
tions.
Note 14:
The on-resistance is for either LX1 or LX2.
Note 15:
PLL acquisition characteristics depend on the impedance at the FILT pin. The specification is not tested and is provided
for design guidance only.
Note 16:
The limits in this specification are not guaranteed and are provided for design guidance only.
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
CH0 = 0.2V to 1.27V
nA
-100
100
CH0 Input Current
10mV overdrive
μs
0.6
1.0
CH Comparator Response Time
(Note 16)
CONDITIONS
mV
4
8
16
CH2 Input Hysteresis (Note 16)
UNITS
MIN
TYP
MAX
PARAMETER
Typic al Operating Charac teristic s
(T
A
= +25°C, unless otherwise noted.)
100
50
1
10
100
EFFICIENCY vs. LOAD CURRENT
(RUN MODE, V
OUT
= 3.0V)
60
M
LOAD CURRENT (mA)
E
70
80
90
V
IN
= 5.0V
V
IN
= 1.5VV
IN
= 2.0V
V
IN
= 3.5V
V
IN
= 2.5V
100
50
0.01
1
10
0.1
100
EFFICIENCY vs. LOAD CURRENT
(COAST MODE, V
OUT
= 3.0V)
60
M
LOAD CURRENT (mA)
E
70
80
90
V
IN
= 5.0V
V
IN
= 3.5V
V
IN
= 2.5V
V
IN
= 2.0V
V
IN
= 1.5V
100
50
0.01
1
10
0.1
100
EFFICIENCY vs. LOAD CURRENT
(COAST MODE, V
OUT
= 2.4V)
60
M
LOAD CURRENT (mA)
E
70
80
90
V
IN
= 5.0V
V
IN
= 3.5V
V
IN
= 2.5V
V
IN
= 2.0V
V
IN
= 1.5V
相關(guān)PDF資料
PDF描述
MAX782REBX Triple-Output Power-Supply Controller for Notebook Computers
MAX782 Triple-Output Power-Supply Controller for Notebook Computers
MAX782EBX Quadruple 2-Input Positive-NAND Gates With Open-Collector Output 14-CFP -55 to 125
MAX782SEBX Triple-Output Power-Supply Controller for Notebook Computers
MAX782CBX Triple-Output Power-Supply Controller for Notebook Computers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX769EEI 功能描述:PMIC 解決方案 2-3 Cell Step-Up/Dwn 2-Way Pgr System IC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX769EEI+ 功能描述:PMIC 解決方案 2-3 Cell Step-Up/Dwn 2-Way Pgr System IC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX769EEI+T 功能描述:PMIC 解決方案 2-3 Cell Step-Up/Dwn 2-Way Pgr System IC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX769EEI-T 功能描述:PMIC 解決方案 2-3 Cell Step-Up/Dwn 2-Way Pgr System IC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX769EVKIT 功能描述:電源管理IC開發(fā)工具 Evaluation Kit for the MAX769 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V