ISL6292C Ver la hoja de datos (PDF) - Renesas Electronics

Número de pieza

componentes Descripción

fabricante

ISL6292C

Li-ion/Li Polymer Battery Charger

Renesas Electronics 

ISL6292C

Electrical Specifications

Typical values are tested at VIN = 5V and 25°C Ambient Temperature, maximum and minimum values are

guaranteed over 0°C to 70°C Ambient Temperature with a supply voltage in the range of 4.3V to 6.5V, unless

otherwise noted. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNITS

OSCILLATOR

Oscillation Period

LOGIC OUTPUTS

TOSC

CTIME = 15nF

2.4

3.0

3.6

ms

STATUS/FAULT Sink Current

Pin Voltage = 0.8V

5

-

-

mA

NOTES:

3. The actual charge current may be affected by the thermal foldback function if the thermal dissipation capability is not enough or by the on

resistance of the power MOSFET if the charger input voltage is too close to the output voltage.

4. Guaranteed by design, not a tested parameter.

Pin Descriptions

VIN (Pin 1)

VIN is the input power source. Connect to a wall adapter.

FAULT (Pin 2)

FAULT is an open-drain output indicating fault status. This

pin is pulled to LOW under any fault conditions. Any time a

FAULT condition happens, it will reset the counter of the

charger.

STATUS (Pin 3)

STATUS is an open-drain output indicating charging and

inhibit states. The STATUS pin is pulled LOW when the

charger is charging a battery. It will be forced to high

impedance when the charge current drops to IMIN. This high

impedance mode will be latched until a recharge cycle or a

new charge cycle starts.

TIME (Pin 4)

The TIME pin determines the oscillation period by

connecting a timing capacitor between this pin and GND.

The oscillator also provides a time reference for the charger.

GND (Pin 5)

GND is the connection to system ground.

EN (Pin 6)

EN is the enable logic input. Connect the EN pin to LOW to

disable the charger or leave it floating to enable the charger.

V2P8 (Pin 7)

This is a 2.8V reference voltage output. This pin outputs a

2.8V voltage source when the input voltage is above POR

threshold, otherwise it outputs zero. The V2P8 pin can be

used as an indication for adapter presence.

IREF (Pin 8)

This is the programming input for the constant charging

current. It maintains at 0.8V when the charger is in normal

operation.

VSEN (Pin 9)

VSEN is the remote voltage sense pin. Connect this pin as

close as possible to the battery pack positive connection. If

the VSEN pin is floating, its voltage drops to zero volt and

the charger operates in the Trickle mode.

VBAT (Pin 10)

VBAT is the connection to the battery. Typically a 10F

Tantalum capacitor is needed for stability when there is no

battery attached. When a battery is attached, only a 0.1F

ceramic capacitor is required.

FN9133 Rev.2.00

July 22, 2005

Page 3 of 11

Share Link: