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| 型号： | MAX1538ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/22页 |
| 文件大小： | 0K |
| 描述： | IC PWR SOURCE SELECTOR 28-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 双电池控制器 |
| 电池化学： | 所有电池类型 |
| 电源电压： | 4.75 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
Power-Source Selector for
Dual-Battery Systems
Typical Operating Characteristics (continued)
(Circuit of Figure 1. T A = +25°C, unless otherwise noted.)
BREAK-BEFORE-MAKE TIMING
FIRST SOURCE INSERTION
MAX1538 toc11
MAX1538 toc12
5V
OUT1
t TRANS
16V
0V OUT2, OUT0
MOSFET
TURN-OFF
14V
20V V ADPIN
TIME
MOSFET
TURN-ON
12V MOSFET
DRIVERS
10V V REVBLK
TIME
MOSFET FOR INITIAL
10V
0V
DISCHARGE PATH
MOSFET FOR FINAL
DISCHARGE PATH
8V
POWER-UP TIME
20V
10V
V EXTLD
0V
1.00 μ s/div
200 μ s/div
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
NAME
MINVA
MINVB
BATSEL
RELRN
CHRG
OUT0
OUT1
OUT2
ACDET
AIRDET
ADPIN
ADPPWR
REVBLK
FUNCTION
Minimum Battery A Voltage Set Point. Battery A discharge is prevented if V BATA has fallen below 5 x
V MINVA .
Minimum Battery B Voltage Set Point. Battery B discharge is prevented if V BATB has fallen below 5 x
V MINVB .
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.
Battery-Relearn Logic-Level Input. Drive RELRN high to enable battery-relearn mode.
Charge-Enable Logic-Level Input. Drive CHRG high to enable the charging path from the charger to the
battery selected by BATSEL.
Selector-State Output. This open-drain output indicates the state of the MAX1538. See Table 1 for
information on decoding.
AC-Adapter Detection Input. When V ACDET is greater than the ACDET trip threshold (2V typ), adapter
presence is detected.
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.
Adapter Input. When V ADPIN > V BATSUP , the MAX1538 is powered by ADPIN. ADPIN is the supply rail for
the ADPPWR MOSFET driver.
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.
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相关代理商/技术参数 |
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| MAX1538EVKIT | 功能描述:电源管理IC开发工具 MAX1538EVKIT RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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| MAX153CAP+ | 功能描述:模数转换器 - ADC 8-Bit 1Msps 2.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX153CAP+T | 功能描述:模数转换器 - ADC 8-Bit 1Msps 2.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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