L6924D STMicroelectronics, L6924D Datasheet - Page 28

• 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
8.4
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Figure 23. ST1 and ST2 connection with LEDs or microcontroller
Table 6.
Shutdown
The L6924D has a shutdown pin (SD) that allows enabling or disabling the device.
If the SD pin voltage is below 0.4 V (e.g. pin connected to GND), the device is enabled,
whereas if the SD pin voltage exceeds 2 V (e.g. the shutdown pin is left floating) the device
is disabled.
When the device enters the shutdown mode, the current consumption is reduced to 60 μA
typ. In this condition, V
The
Bad battery temperature
Charge in progress
Charge condition
Figure 24
Stand by mode
Battery absent
Charge done
Over time
Status LEDs indications
clarifies the SD pin behavior.
REF
When the device is in pre-charge or fast-charge status
When the charging current goes lower than the I
When the input voltage goes under V
When the voltage on the TH pin is out of the programmable
window, in accordance with the NTC or PTC thermistor
When the battery pack is removed
When T
is turned off.
Doc ID 11908 Rev 9
MAXCH
or T
MAXPRECH
Description
is expired
BAT
-50 mV
ENDTH
OFF ON
OFF OFF
ST1 ST2
ON OFF
ON
ON
ON
L6924D
ON
ON
ON