L6924D STMicroelectronics, L6924D Datasheet - Page 24

• 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

Application information: monitoring and protection
Note:
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When the voltage (and thus, the temperature), returns to the window range, the device re-
starts the charging process. Moreover, there is a hysteresis for both the upper and lower
thresholds, as shown in
Figure 19. Battery temperature control flow chart
T
Figure 20. Voltage window with hysteresis on TH
Figure 21.
BAT
= OK when the battery temperature between 0°C and 50°C
Pin connection
V
V
MAXTH_HYS
MINTH_HYS
V
V
MAXTH
MINTH
Figure
780mV
248mV
900mV
Doc ID 11908 Rev 9
20.
L6924D
225mV
Voltage
Variation on TH pin
TH
NTC
V
REF
Charge disable
Charge enable
L6924D