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參數(shù)資料
| 型號(hào)： | ISL6293 |
| 廠商： | Intersil Corporation |
| 英文描述： | Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset 14-SOIC -40 to 85 |
| 中文描述： | Li-ion/Li聚合物電池充電器可供兩個(gè)電源 |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大小： | 208K |
| 代理商： | ISL6293 |
5
FN9180.0
Functional Pin Description
CRDL (Pin 1)
Cradle input. This pin is usually connected to a cradle power
input. The maximum input voltage is 28V. The charge
current from this pin is programmable with the ICDL pin up to
1A. When this pin is connected to a power source, no charge
current is drawn from the USB pin. A 1μF or larger value
ceramic capacitor is recommended for decoupling.
USB (Pin 2)
USB input. This pin is usually connected to a USB port
power connector. Other sources that are lower than 5.5V are
also acceptable. The charge current from the USB pin is
selectable between 100mA and 500mA maximum with the
USBP pin when the R
IUSB
= 80k
. A 1μF or larger value
ceramic capacitor is recommended for decoupling. It is also
recommended to have a 1
resistor in series with the
decoupling capacitor to prevent an over-shoot voltage when
a USB cable is plugged in.
PPR (Pin 3)
Power presence indication. This is an open-drain output pin
that outputs a logic LOW when either the USB input voltage
or the CRDL input voltage is above its POR level, regardless
if the charger is enabled or disabled. This pin provides a
wake-up signal to a microprocessor when either the cradle
or the USB power is connected.
CHG (Pin 4)
Charge indication pin. When the charge current from the
cradle input during the constant current mode falls to below
8% of the programmed reference current by the ICDL pin or
the charge current from the USB input is below 10% of the
programmed charge current, the open-drain MOSFET is
turned off. The pin will be pulled to logic HIGH by the pull-up
resistor to indicate the End Of Charge.
USB Input Trickle Charge Current
I
TRICKLE
USBP = LOW, R
IUSB
= 80k
, V
BAT
= 2.4V
Given as a % of the USB LOW I
CHARGE
45.0
50.0
55.0
%
END-OF-CHARGE CURRENT THRESHOLD
Powered From USB Pin
I
EOC
USBP = HIGH, USB = 5V, R
IUSB
= 80k
Given as a % of the USB HIGH I
CHARGE
8.0
10.5
13.0
%
Powered From USB Pin
I
EOC
USBP = LOW, USB = 5V, R
IUSB
= 80k
Given as a % of the USB LOW I
CHARGE
17.0
21.0
25.0
%
Powered From CRDL Pin
I
EOC
R
ICDL
= 1.82k
, V
CRDL
= 5V
Given as a % of the CRDL I
CHARGE
5.5
8.5
11.0
%
PRECONDITIONING CHARGE THRESHOLD
Preconditioning Charge Threshold Voltage
V
MIN
2.5
2.6
2.7
V
INTERNAL TEMPERATURE MONITORING
Current Foldback Threshold (Note 6)
T
FOLD
85
100
115
°C
LOGIC INPUT AND OUTPUT
USBP Pin Logic Input High
2.0
-
-
V
USBP Pin Logic Input Low
-
-
0.4
V
USBP Pin Internal Pull Down Resistance
-
1000
-
k
EN Pin Logic Input High
1.2
-
-
V
EN Pin Logic Input Low
-
-
0.4
V
EN Pin Internal Pull Down Resistance
-
1000
-
k
CHG/PPR Sink Current
Pin Voltage = 0.8V
15
-
-
mA
NOTES:
3. The 4.0V V
BAT
is selected so that the CHG output can be used as the indication for the offset comparator output indication. If the V
BAT
is lower
than the POR threshold, no output pin can be used for indication.
4. The maximum and minimum limits are guaranteed over -40°C to 70°C ambient temperature range.
5. The charge current may be reduced by the thermal foldback function, depending on the heatsinking condition of the test setup.
6. The threshold value at which the charger output is reduced to near zero. Guaranteed by design, not tested.
Electrical Specifications
Typical Values Are Tested at USB = CRDL = 5V and ambient temperature is at 25°C, Unless Otherwise Noted.
All Maximum and Minimum Values Are Guaranteed Under the Recommended Operating Conditions.
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL6293
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| ISL6293-2CR | Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset 14-SOIC -40 to 85 |
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| ISL6293-1CRZ | 制造商:Intersil Corporation 功能描述:LEAD-FREE VERSION OF ISL6293-1CR - Bulk |
| ISL6293-1CRZ-T | 制造商:Intersil Corporation 功能描述:LEAD-FREE VERSION OF ISL6293-1CR - Tape and Reel |
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