VFQFPN16(2008) 데이터 시트보기 (PDF) - STMicroelectronics

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VFQFPN16
(Rev.:2008)

USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer

STMicroelectronics 

Electrical characteristics

4

Electrical characteristics

L6924U

Table 5. Electrical characteristics (TJ = 25 °C, VIN = 5 V, unless otherwise specified)

Symbol

Parameter

Test condition

Min Typ Max

VIN (1)

Operating input voltage

Start up threshold

2.5

12

4.1

IIN (1) Supply current

Charging mode (RPRG = 24 kΩ)

Shutdown mode (RPRG = 24 kΩ)

1.8 2.5

60

80

Shutdown mode (RPRG = 24 kΩ)

500

ISINK

Current flowing from VOUT

Stand by mode (RPRG = 24 kΩ)

(VIN = 2.5 V < VBATTERY)

500

VOUT (1) Battery regulated voltage

4.16 4.2 4.24

IAC

Charge current with AC

adapter input

MODE at GND, RPRG = 24 kΩ

MODE at GND, RPRG = 12 kΩ

450 490 525

905 975 1045

IUSB

Charge current with USB

input

MODE at HIGH, ISEL at HIGH,

RPRG-USB = 24 kΩ

MODE at HIGH, ISEL at LOW,

RPRG-USB = 2 4 kΩ

450 490 525

86

96 105

IPRE_AC

Pre-charge current with AC

input

MODE at GND,

RAC = 24 kΩ

41

49

56

IPRE_USB

Pre-charge current with USB MODE at HIGH, ISEL at HIGH

input (high power mode)

RUSB = 24 kΩ

Pre-charge current with USB MODE at HIGH, ISEL at LOW

input (low power mode)

RUSB = 24 kΩ

41

49

56

7.6 9.6 11.4

VPRETH Pre-charge voltage threshold

2.9 3.0 3.1

IENDTH Termination current

REND = 3.3 kΩ

12

16

20

TMAXCH (2) Maximum charging time

CTPRG = 10 nF

R[IPRG] = 24 kΩ

3

TMAXCH (2)

Maximum charging time

accuracy

CTPRG = 5.6n F

RPRG = 24 kΩ

10

SDTH

Shutdown threshold high

Shutdown threshold low

2

0.4

ST1,2 Output status sink current Status on

10

MODE threshold high

MODETH

MODE threshold low

1.3

0.4

ISELTH

ISEL threshold high

ISEL threshold low

1.3

0.4

Unit

V

V

mA

µA

nA

nA

V

mA

mA

mA

mA

mA

mA

V

mA

hours

%

V

V

mA

V

V

V

V

8/38

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