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| 型号： | MAX17535ETG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/28页 |
| 文件大小： | 0K |
| 描述： | IC SMBUS BATT CHRGR HF 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（锂离子），多化学 |
| 电源电压： | 8 V ~ 26 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
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High-Frequency,
Low-Cost SMBus Chargers
Table 1. EN Pin Function
ADAPTER
PRESENT
Yes
Yes
No
No
EN
High
Low
High
Low
PDSL STATUS
PDSL is pumped 8V above the DCIN
voltage (charge pump on).
PDSL is pumped 8V above the DCIN
voltage (charge pump on).
Charge pump is off and PDSL is
forced to 0V (typ, 27C).
Charge pump is off and PDSL is
forced to 0V (typ, 27C).
CHARGER STATUS
Enabled
Disabled
Disabled
Disabled
SYSTEM CURRENT MONITOR
STATUS (IINP PATH)
Enabled
Enabled
Enabled
Disabled
MODE
EN Pin
The EN pin is a logic input. The state of the EN pin and
the presence or absence of the adapter determines the
state of PDSL, the IINP path, and the charger function as
shown in Table 1.
Table 2. Fault Protection and Shutdown
Operation Table
CONTROLLER DRIVER
STATE STATE
30mA LDO
The 5.4V LDO is powered from DCIN and is compensated
for loads from 0 to 30mA with a single 1 F F ceramic
capacitor. The load regulation over the 30mA load is
34mV (typ), 100mV max. The LDO supplies the drive for
the DLO driver and also the BST circuitry. It is shut down
when the adapter is absent.
Analog Input Current Monitor Output
IINP monitors the system-input current sensed across the
sense resistor (RS1) that connects between CSSP and
CSSN. The voltage at IINP is proportional to the input
current according to the following equation:
Thermal fault (latched,
reset by adapter
reinsertion)
ACOV fault or less
than 3 ACOCP faults
(not latched)
More than 3 ACOCP
faults (latched, reset
by adapter reinsertion)
Battery OV fault
(not latched)
Charger disabled,
PDSL low, LDO,
and V AA off
Charger disabled,
PDSL low, LDO,
and V AA active
Charger disabled,
PDSL low, LDO,
and V AA off
Charger disabled,
PDSL high, LDO,
and V AA active
DHI and
DLO low
DHI and
DLO low
DHI and
DLO low
DHI and
DLO low
I INPUT =
V IINP
RS1 × A
where I INPUT is the DC current supplied by the AC
adapter and A is the gain (20V/V typ). V IINP has a 0V to
2.2V output voltage range.
Table 1 shows the charge and IINP status when the
adapter is present or absent and as a function of the
EN pin. When connected as shown in the standard
application circuit, IINP monitors the input system
current when the adapter is present or the battery
discharge current when the adapter is absent. Leave
IINP unconnected if not used.
Table 2 is the fault protection and shutdown operation
table.
SMBus Implementation
The MAX17435/MAX17535 receive control inputs from
the SMBus interface. The MAX17435/MAX17535 use
a subset of the commands documented in the System
Management Bus Specifications V1.1, which can be
downloaded from www.smbus.org . The MAX17435/
MAX17535 use the SMBus read-word and write-word
protocols to communicate with the system controller. The
MAX17435/MAX17535 operate only as slave devices
with address 0b0001001_ (0x12) and do not initiate
communication on the bus. In addition, the MAX17435/
MAX17535 have two identification registers: (0xFF), a
16-bit device ID register and a 16-bit manufacturer ID
register (0xFE). The SMBus implementation is similar to
the MAX8731A with the addition of the RELEARN() and
IINPVoltage() commands. The SMBus is not powered
from an external supply, so during states that disable the
charger, the SMBus register data is lost, so the register
data must be rewritten when reenabled. See Figure 3.
16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17535ETG+ | 功能描述:电池管理 High Frequency SMBus Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17535ETG+T | 功能描述:电池管理 High Frequency SMBus Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17535EVKIT+ | 功能描述:电池管理 EVKIT RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17552ATB+T | 制造商:Maxim Integrated Products 功能描述: |
| MAX1756AAUT | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
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