L6924D STMicroelectronics, L6924D Datasheet - Page 6

• Manufacturer Part Number: L6924D
• Description: IC BATTERY CHARGER SYS 16-VFQFPN
• Manufacturer: STMicroelectronics

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

Pins description and connection diagrams
Table 2.
6/38
12
13
14
15
16
I/O
O
I
I
I
V
V
I
I
I
Pin functions
END
PRG
PRE
REF
PRE
External reference voltage pin.(reference voltage is 1.8 V±2%)
Charge termination pin.
A resistor connected from this pin to GND fixes the charge termination current threshold
I
End-of-charge current on page
current delivered to the battery (Gas Gauge function).
Multifunction pin.
A resistor connected to GND allows the user to adjust the pre-charge voltage threshold
V
If the pin is floating, V
2.8 V and the charge is not automatically terminated when I < I
If the voltage on V
reset.
Charge current program pin.
A resistor connected from this pin to GND, fixes the fast charge current value (I
accuracy of 7%.
Pre-charge current program pin.
If the pin is floating I
different value, the pin has to be connected to GND or V
Chapter 7.2: Pre-charge current on page
ENDTH
PRETH
: if I < I
.
ENDTH
PRE
, the charger behaves according to the V
PRETH
PRETH
goes lower than 0.5 V (edge sensitive), the maximum charging time is
Doc ID 11908 Rev 9
is equal to 10% of I
= 2.8 V. If the voltage on V
19). The voltage across the resistor is proportional to the
17.
CHG
. If I
PRETH
PRE
REF
pin is lower than 0.8 V, V
,
has to be programmed at a
through a resistor see
PRE
ENDTH
status (see
.
Chapter 7.5:
CHG
), with an
PRETH
L6924D
=