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LM3647IM Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM3647IM
Description  Universal Battery Charger for Li-Ion, Ni-MH and Ni-Cd Batteries
PDF  17 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3647IM Datasheet(HTML) 3 Page - National Semiconductor (TI)

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2. Connection Diagram
2.1 Pin Descriptions
2.2 Ordering Information
Pin No.
Name
I/O
Description
1
SEL3
I
Input to select charge mode: high = pulse, low = constant
2
SEL4
I
Input to select maintenance time out, connected to an RC-network
3
RCIN
RC-timing pin
4
GND
Ground
5
Vcc
5V, power supply
6
RESET
I
Reset pin, active low
7
LED1
O
LED output
8
LED2
O
LED output
9
LED3
O
LED output
10
VREF
I
Voltage reference analog input
11
CEXT
External Capacitor
12
CEL
I
Battery voltage input (through resistor divider)
13
CS
I
Current sense input
14
TEMP
I
NTC-temperature sensor input
15
DISCHG
O
High when discharging, else low
16
SYSOK
O
System Monitor Output
17
BUZZER
O
Buzzer output
18
PWM
O
PWM-output filtered to a DC-level (controls the current)
19
SEL1
I
Tri-level input, used to select charge type
20
SEL2
I
Tri-level input, used to select NiCd, NiMH, Li-Ion
Device
Package
Temperature
LM3647IM
20 SOIC
-40˚C to +85˚C
RESET
TEMP
CS
CEL
CEXT
BUZZER
DISCHG
SEL2
SEL1
PWM
20-PIN
SOIC
SEL3
SEL4
RCIN
GND
VCC
LED1
LED2
LED3
Top View
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VREF
SYSOK
Order Number LM3647IM
NS Package Number M20B



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