参数资料
| 型号： | ISL6292BCRZ |
| 厂商： | Intersil |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI-ION 4.2V 4X4 16QFN |
| 标准包装： | 75 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 4.3 V ~ 6.5 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN-EP（4x4） |
| 包装： | 管件 |
| 产品目录页面： | 1244 (CN2011-ZH PDF) |
ISL6292B
BAT
2.9V
V2P9
R2
VSEN
R1
10 ?
Under
Temp
CP1
-
+
V TM IN
To TEMP Pin
R1
100K
R2
75K
TEMP
R U
-
VA
+
Enable
V REF
R3
Q1
Over
Temp
CP2
-
+
V TM AX
Q1
Q2
R3
25K
R4
R T
4K
DT
FIGURE 5. THE INTERNAL VOLTAGE FEEDBACK CIRCUIT
C TIME is the timing capacitor shown in the Typical
Application circuit. A 1nF capacitor leads to 14 minutes of
CHG
Q3
GND
R D
TIMEOUT. For example, a 15nF capacitor sets the
TIMEOUT to be 3.5 hours. The charger is terminated when
the TIMEOUT is reached.
The trickle mode charge has a time limit of 1/8 TIMEOUT. If
the battery voltage does not reach V MIN within that limit, a
TIMEOUT fault is issued and the charger latches up. The
FIGURE 6. THE INTERNAL AND EXTERNAL CIRCUIT FOR
THE NTC INTERFACE
TABLE 1. LED INDICATION SUMMARY
STATUS RED GRN INDICATION
charger stays in trickle mode for at least 15 cycles of the
internal oscillator and, at most, 1/8 of TIMEOUT.
Recharge Threshold
The charger terminates when the TIMEOUT limit expires.
After the termination, if the battery is below the recharge
Charging
Full Charge (EOC), or recharging
Trickle TIMEOUT Error
Over/Under Ambient Temperature
No Battery
L
H
L
L
H
H
L
L
L
H
Red
Green
Yellow (Latched)
Yellow
Off
threshold given in the Electrical Specification table, the
charger starts a re-charge cycle.
LED Indications
RED and GRN are two open-drain outputs that directly drive
a tri-color LED. At the moment when the power is applied or
when the charger is enabled through the EN pin, the charger
starts to charge and the RED indication pin outputs a low
impedance to drive a red LED. Once the charge finishes
(either when the EOC condition is qualified or when the
TIMEOUT completes), the GRN pin turns on to drive a green
LED and the red LED is off. The green LED remains on
unless the input power is recycled, or when the EN pin is
toggled, or a fault case happens. When a recharge occurs,
the indication remains in green.
When a fault case happens, both the RED and the GRN pins
are on to indicate a yellow color. If the FAULT is a TIMEOUT
fault, the yellow indication is latched and can only be reset
through the EN pin or the input power. If the FAULT is an
ambient temperature FAULT, the charger restarts after the
fault condition is removed. When not powered or when not
enabled, both LEDs are off. Table 1 summarizes the LED
indications.
9
VSEN Pin
The VSEN pin allows remote sensing of the battery voltage
to minimize the resistive voltage drop between the charger
output and the battery positive terminal. Figure 5 shows the
internal voltage feedback circuit. In applications that the
remote sense pin goes through a connector, a local low-
value resistor is recommended, as the R 1 shown in Figure 5,
in case the connector has bad contact. The sum of R 2 and
R 3 is 75k ? , therefore, a 10 ? R 1 is negligible in output
voltage accuracy.
Ambient Temperature Sensing
The TEMP pin is used to set the ambient temperature range
that allows charging the battery. Typically, an NTC (negative
temperature coefficient) resistor is mounted on the printed
circuit board (PCB) to monitor the ambient temperature. Due
to the self-heating of the PCB during charging, the ISL6292B
provides the DT pin to set a higher temperature threshold
after the charger starts.
Figure 6 shows the internal circuit for the ambient
temperature sensing function. The two comparators form a
window comparator whose high-threshold is V TMIN and low-
threshold is V TMAX . These two thresholds are given in the
Electrical Specifications. The two MOSFETs (Q1 and Q2)
FN9139 .1
April 19, 2005
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相关代理商/技术参数 |
参数描述 |
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| ISL6292BCRZ-T | 功能描述:IC CHARGER LI-ION POLYMER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| ISL6292C | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Li-ion/Li Polymer Battery Charger |
| ISL6292CCR3Z | 功能描述:电池管理 VSENSE BONDED OUT 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 |
| ISL6292CCR3Z-T | 功能描述:IC CHARGER LI-ION POLYMER 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| ISL6292D | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Li-ion/Li Polymer Battery Charger |
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