LM3621 National Semiconductor, LM3621 Datasheet - Page 2
![no-image](/images/manufacturer_photos/0/4/469/national_semiconductor_sml.jpg)
LM3621
Manufacturer Part Number
LM3621
Description
Single Cell Lithium-Ion Battery Charger Controller
Manufacturer
National Semiconductor
Datasheet
1.LM3621.pdf
(14 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
www.national.com
Connection Diagram
Pin Description
Pin No.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Symbol
V
V
CSR
PFD
I
MCO
V
I
V
LED1
LED2
ChgInt
Enable
Boost
V
V
COMP
SET
BAT
BAT
COMP
SET
SS
DD
+
−
Order Number LM3621M or LM3621M-3.0
I/O
NSC Package Number M16A
O
O
O
O
S
S
I
I
I
I
I
I
I
I
I
I
16-Lead SOIC
Top View
Description
Battery pack high side sense input.
Battery pack low side sense input.
Current Sense Resistor high side input.
Pass FET gate Drive output. (N-channel).
Compensation pin for current regulation loop.
Modulation Control Output- analog control signal output
Compensation pin for voltage regulation loop.
Charge current adjust input pin (see application section).
Charge termination voltage control input (V
V
LED driver #1 output (open drain).
LED driver #2 output (open drain).
Charge current interrupt (active LO).
Enable charge cycle control.
Maximum output current boost control (max output current
increased by 80%).
IC common.
IC power supply.
SET
2
= LO for 4.1V).
DS100107-18
SET
= HI for 4.2V or