參數(shù)資料
型號(hào)： ICS1702N
廠商： Electronic Theatre Controls, Inc.
英文描述： QuickSaver Charge Controller for Nickel-Cadmium and Nickel-Metal Hydride Batteries
中文描述： QuickSaver充電控制器的鎳鎘和鎳氫電池
文件頁(yè)數(shù)： 2/28頁(yè)
文件大?。?/td> 466K
代理商： ICS1702N
2
ICS1702
Pin Configuration
Pin Definitions
20-Pin DIP or SOIC
ICS1702
CHG
DCHG
PFN
CMN
MMN
VSS
AUX1
RC
THERM
OPREF
VIN
VDD
AVSS
OTN
SEL1
MRN
SEL0
AUX0
DTSEL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
unused
Pin Number
1
Pin Name
CHG
Type
OUT
Definition
Active high TTL compatible signal used to turn on an external current source to provide current to charge
the battery.
Active high TTL compatible signal available to turn on a discharge circuit.
Polling detect indicator. An active low turns on an external indicator to show the controller is polling for
the presence of the battery.
Maintenance mode indicator. An active low turns on an external indicator showing the battery is either in
the topping charge, maintenance charge or auxiliary condition mode. This signal is also applied with the
out-of-temperature range indicator when the controller is in a cold battery charge mode. The indicator
flashes during the auxiliary discharge mode.
Charge mode indicator. An active low turns on an external indicator to show the controller is either in a
soft start charge or fast charge.
Out-of-temperature range indicator. An active low turns on an external indicator showing the battery is
out of the normal fast charge temperature range.
Tri-level input used with the SEL1 pin to program the device for the desired charge rate.
Ground.
Ground.
Tri-level input used with the SEL0 pin to program the device for the desired charge rate.
Master reset signal. A logic low pulse greater than 700 ms initiates a device reset.
An external resistor and capacitor sets the frequency of the internal clock.
Selects temperature slope and/or voltage slope termination.
Tri-level input used with the AUX1 pin to program the device for an auxiliary operating mode.
Tri-level input used with the AUX0 pin to program the device for an auxiliary operating mode.
Thermistor or thermal switch input for temperature sensing.
Open circuit (no battery) voltage reference. An external resistor divider on this pin sets the open circuit
voltage reference used to detect the presence of a battery.
Battery voltage normalized to one cell with an external resistor divider.
Ground.
Device supply =+5.0 VDC
2
3
DCHG
PFN
OUT
OUT
4
MMN
OUT
5
CMN
OUT
6
OTN
OUT
7
8
9
SEL0
VSS
AVSS
SEL1
MRN
RC
DTSEL
AUX0
AUX1
THERM
OPREF
IN
10
11
12
13
14
15
16
17
IN
IN
IN
IN
IN
IN
IN
IN
18
19
20
VIN
unused
VDD
IN
Note:
Pin 11 has an internal pull-up.
Pin 16 has an internal pull-up.
Pin 13 has an internal pull-down.
Pins 7, 10, 14, 15 float to 2.3V when unconnected.
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