L6924D STMicroelectronics, L6924D Datasheet - Page 34
![IC BATTERY CHARGER SYS 16-VFQFPN](/photos/6/58/65862/497-16-vfqfpn_series_sml.jpg)
L6924D
Manufacturer Part Number
L6924D
Description
IC BATTERY CHARGER SYS 16-VFQFPN
Manufacturer
STMicroelectronics
Datasheet
1.L6924D013TR.pdf
(38 pages)
Specifications of L6924D
Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
Voltage - Supply
2.5 V ~ 12 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-VFQFN
Product
Charge Management
Output Current
30 mA
Operating Supply Voltage
2.5 V to 12 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
For Use With
497-8428 - BOARD EVAL CHARGER ST7260/L6924D497-8247 - BOARD EVAL FOR L6924UTR497-5504 - EVAL BOARD FOR L6924D
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
L6924D013TR
Manufacturer:
ST
Quantity:
2 100
Company:
Part Number:
L6924D013TR
Manufacturer:
st
Quantity:
1 950
Company:
Part Number:
L6924D013TR
Manufacturer:
STMicroelectronics
Quantity:
10 000
Application ideas
10
10.1
34/38
Application ideas
USB battery charger
With a voltage range between 4.75 V and 5.25 V, and a maximum current up to 500 mA, the
USB power bus is an ideal source for charging a single-cell Li-Ion battery. Since it is not
possible to rely on the USB current limit to charge the battery, a linear approach must be
adopted. Therefore, it is only necessary to set the I
500 mA, and the device will charge the battery in Linear mode.
Figure 29
Figure 29. USB charger application
CONTROLLER
D- D+
SYSTEM
AND
USB
GND
V
BUS
shows an example of USB charger application schematic.
C1
C2
C4
V
T
ST2 SD GND
Doc ID 11908 Rev 9
V
ST1
IN
PRG
INSNS
V
REF
L6924D
R1
R4
V
OPRG
TH
V
V
V
I
OSNS
I
PRG
END
I
OUT
PRE
PRE
CHG
R5
with a maximum value lower than
R2
R3
C3
BATTERY
PACK
L6924D