參數(shù)資料
型號： MAX1648ESE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： Chemistry-Independent Battery Chargers
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封裝： 0.150 INCH, MS-012, SOIC-16
文件頁數(shù)： 20/24頁
文件大?。?/td> 161K
代理商： MAX1648ESE
M
With the switching regulator on, the current through R1
(Figure 3) is regulated by sensing the average voltage
between CS and BATT. A 6-bit current DAC controls
the current-limit set point. DA5–DA0 denote the bits in
the current DAC code. Figure 9 shows the relationship
between the current DAC code and the average volt-
age between CS and BATT.
When the switching regulator is off, DHI is forced to
LX and DLO is forced to ground. This prevents current
from flowing through inductor L1. Table 4 shows the
relationship between the ChargingCurrent( ) register
value and the switching regulator current DAC code.
Chemistry-Independent
Battery Chargers
20
______________________________________________________________________________________
0x0010–0xFFFF
0x0010–0xFFFF
0x0010–0xFFFF
ChargingVoltage( )
0x0001–0x001F
0x0020–0x003F
0x0040–0x03DF
ChargingCurrent( )
0
2
CURRENT
DAC
CODE
No
Yes
Yes
SW REG
ON
0
0
0
(NOTE 2)
0
0
0
0
0
0
0
0
0
ALARM_
INHIBITED
(NOTE 1)
CHARGE_
INHIBITED
Table 4. Relationship Between Current DAC Code and the ChargingCurrent( ) Value
0V
0V
0V
0V
0V
open
open
open
open
open
VL
VL
VL
VL
VL
VL
VL
x
x
x
x
x
SEL
0x0010–0xFFFF
0x0010–0xFFFF
0x03E0–0x03FF
0x0400–0xFFFF
62
62
Yes
Yes
0
1
0
0
0
0
0
0
4–60
0x0010–0xFFFF
0x0010–0xFFFF
0x0001–0x001F
0x0020–0x003F
0
1
No
Yes
0
0
0
0
0
0
0
0
0x0010–0xFFFF
0x0010–0xFFFF
0x0040–0x07DF
0x07E0–0x07FF
2–62
63
Yes
Yes
0
0
0
0
0
0
0
0
0x0010–0xFFFF
0x0010–0xFFFF
0x0800–0xFFFF
0x0001–0x001F
63
0
Yes
No
1
0
0
0
0
0
0
0
0x0010–0xFFFF
0x0010–0xFFFF
0x0020–0x003F
0x0040–0x007F
1
1
Yes
Yes
0
0
0
0
0
0
0
0
0x0010–0xFFFF
0x0010–0xFFFF
0x0080–0x0F9F
0x0FA0–0x0FBF
2–62
63
Yes
Yes
0
0
0
0
0
0
0
0
0x0010–0xFFFF
0x0010–0xFFFF
0x0FC0–0x0FFF
0x0001–0xFFFF
63
63
Yes
Yes
0
1
0
0
0
0
0
0
x
0x0000
x
0
No
No
0
0
0
0
0
0
0
x
x
x
x
0x0010–0xFFFF
N/C
N/C
No
No
N/C
N/C
1
x
x
1
0
0
x
x
N/C
No
N/C
N/C
x
x
1
N/C
Note 1:
Logical AND of THERMISTOR_HOT, HOT_STOP, NOT(THERMISTOR_UR).
Note 2:
Value of CURRENT_OR bit in the ChargerStatus( ) register.
N/C = No change
Table 5. Effect of SEL Pin-Strapping on the ChargingCurrent( ) Data Bits
45
VL
90
181
AGND
Open
R1
(m
)
SEL
0
0
0
D15
0
0
0
D14
0
0
0
D13
0
0
0
D12
DA5
0
0
D11
DA4
DA5
0
D10
DA3
DA4
DA5
D9
DA2
DA3
DA4
D8
DA1
DA2
DA3
D7
DA0
DA1
DA2
D6
*
DA0
DA1
D5
I4
I4
I4
D4
I3
I3
I3
D3
I2
I2
I2
D2
I1
I1
I1
D1
I0
I0
I0
D0
*When SEL = VL, D5 = 1 forces DA0 to be 1 regardless of the D6 bit value.
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參數(shù)描述
MAX1648ESE+ 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
MAX1648ESE+T 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
MAX1649CPA 功能描述:DC/DC 開關(guān)控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1649CPA+ 功能描述:DC/DC 開關(guān)控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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