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參數(shù)資料
| 型號(hào)： | ICS1708 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | QuickSaver Charge Control IC for Nickel-Cadmium and Nickel-Metal Hydride Batteries |
| 中文描述： | QuickSaver充電控制IC的鎳鎘和鎳氫電池 |
| 文件頁(yè)數(shù)： | 9/16頁(yè) |
| 文件大小： | 936K |
| 代理商： | ICS1708 |
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9
ICS1708
The 1C (60 minute rate) is selected by using a 10K pull-up resistor from CMN pin 3 to VDD pin 8 (+5V REG.) as shown in
Figure 9A "Charging System Diagram". The 10K pull-up resistor is required even if an LED with a current limited pull-up to
VDD pin 8 (+5V reg.) is used. The C/2.5 (150 minute) rate is selected using the 330/1.3K resistor divider with a general
purpose LED as shown in Figure 9B. Based on the LED selection, this configuration should provide the 2.5V +/- 0.5V on
CMN pin 3 prior to the start of fast charge to activate the C/2.5 (150 minute) rate as shown in Figure 9B. Setting the 4C (15
minute) rate involves setting the voltage at CMN pin 3 below 0.5V prior to the start of fast charge as shown in Figure 9C. A
10K pull-up resistor, a 2K pull-down resistor and a 1N4148 or equivalent diode is used to keep CMN below 0.5V at power up
or upon battery removal. When CMN goes low to ground of its own accord, the base of a 2N3903 or equivalent NPN
transistor is pulled low via the 1N4148 diode allowing the LED indication for fast charge.
ICS1708
CONSTANT
CURRENT
SOURCE
PTC
or
TS
DC INPUT
.047uF
R3
R2
R1
100pF
15k
+
4.7uF
.047uF
+
IN
ON/OFF
OUT
1
2
3
4
5
6
7
8
CHG
MMN
CMN
VSS
VDD
VIN
OPREF
RC
+5V REG.
*10K
FIGURE 9A: Charging System Diagram for 1C (60 minute) Charge Rate
* SELECTS 1C
CHARGE RATE
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| ICS843051AGLF | FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR |
| ICS843051AGLFT | FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR |
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| ICS843051 | Twisted Pair Flat Cable, 1700/26 28 AWG, .050 (1.27) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS1708N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:QuickSaver Charge Control IC for Nickel-Cadmium and Nickel-Metal Hydride Batteries |
| ICS1708S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:QuickSaver Charge Control IC for Nickel-Cadmium and Nickel-Metal Hydride Batteries |
| ICS1708ST | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:QuickSaver Charge Control IC for Nickel-Cadmium and Nickel-Metal Hydride Batteries |
| ICS1712 | 制造商:GALAXY 制造商全稱:GALAXY 功能描述:Charge Controller for Nickel-Cadmium and Nickel-Metal Hydride Batteries |
| ICS1712M | 制造商:GALAXY 制造商全稱:GALAXY 功能描述:Charge Controller for Nickel-Cadmium and Nickel-Metal Hydride Batteries |
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