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參數(shù)資料
| 型號： | MAX1538ETI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Power-Source Selector for Dual-Battery Systems |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC28 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, MO-220WHHD-1, TQFN-28 |
| 文件頁數(shù)： | 9/22頁 |
| 文件大?。?/td> | 502K |
| 代理商： | MAX1538ETI |
M
Power-Source Selector for
Dual-Battery Systems
_______________________________________________________________________________________
9
PIN
NAME
FUNCTION
1
MINVA
Minimum Battery A Voltage Set Point. Battery A discharge is prevented if V
BATA
has fallen below 5 x
V
MINVA
.
2
MINVB
Minimum Battery B Voltage Set Point. Battery B discharge is prevented if V
BATB
has fallen below 5 x
V
MINVB
.
3
BATSEL
Battery-Selection Input. Drive to logic low to charge battery A or give discharge preference to battery A.
Drive to logic high to charge battery B or give discharge preference to battery B.
4
RELRN
Battery-Relearn Logic-Level Input. Drive RELRN high to enable battery-relearn mode.
5
CHRG
Charge-Enable Logic-Level Input. Drive CHRG high to enable the charging path from the charger to the
battery selected by BATSEL.
6
7
8
OUT0
OUT1
OUT2
Selector-State Output. This open-drain output indicates the state of the MAX1538. See Table 1 for
information on decoding.
9
ACDET
AC-Adapter Detection Input. When V
ACDET
is greater than the ACDET trip threshold (2V typ), adapter
presence is detected.
10
AIRDET
Airline-Adapter Detection Input. When V
AIRDET
> 2V and V
ACDET
< 2V, the airline-adapter presence is
detected. Charging is disabled when an airline adapter is detected.
11
ADPIN
Adapter Input. When V
ADPIN
> V
BATSUP
, the MAX1538 is powered by ADPIN. ADPIN is the supply rail for
the ADPPWR MOSFET driver.
12
ADPPWR
Adapter-Power P-Channel MOSFET Driver. Connect ADPPWR to the gate of P1 (Figure 1). P1 disconnects
the adapter from the system during relearn mode. Exclude P1 and leave ADPPWR disconnected if relearn
is not used. ADPPWR is driven relative to ADPIN. ADPPWR and REVBLK are driven with the same control
signal.
Gate Drive for the Reverse-Blocking P-Channel MOSFET. Connect REVBLK to the gate of P2 (Figure 1). P2
enables and disables the AC adapter’s power path. REVBLK is driven relative to EXTLD. REVBLK and
ADPPWR are driven with the same control signal.
13
REVBLK
BREAK-BEFORE-MAKE TIMING
MAX1538 toc11
1.00
μ
s/div
14V
16V
MOSFET
DRIVERS
12V
10V
8V
t
TRANS
MOSFET
TURN-OFF
TIME
MOSFET
TURN-ON
TIME
MOSFET FOR INITIAL
DISCHARGE PATH
MOSFET FOR FINAL
DISCHARGE PATH
FIRST SOURCE INSERTION
MAX1538 toc12
200
μ
s/div
0V
0V
0V
5V
V
V
REVBLK
V
EXTLD
OUT1
OUT2, OUT0
10V
20V
20V
10V
POWER-UP TIME
Typical Operating Characteristics (continued)
(Circuit of Figure 1. T
A
= +25°C, unless otherwise noted.)
Pin Description
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1538ETI+ | 功能描述:電池管理 Power-Source Select for Dual-Bat System 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 |
| MAX1538ETI+T | 功能描述:電池管理 Power-Source Select for Dual-Bat System 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 |
| MAX1538ETI-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 |
| MAX1538EVKIT | 功能描述:電源管理IC開發(fā)工具 MAX1538EVKIT RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX153C/D | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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