ISL6297CRZ-T Intersil, ISL6297CRZ-T Datasheet - Page 4

• Manufacturer Part Number: ISL6297CRZ-T
• Description: IC CHARGER LI-ION POLYMER 16-QFN
• Manufacturer: Intersil

Specifications of ISL6297CRZ-T

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 4.3 V ~ 6.5 V
• Operating Temperature: -20°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL6297CRZ-TTR

Pin Description
Typical Application
1, 15, 16
13, 14
PIN #
10
12
INPUT
11
C
C
C
C
D
R
R
2
3
4
5
6
7
8
9
-
1
3
2
TIME
1
IREF
IMIN
: 1μF X5R CERAMIC CAPACITOR
: 10μF X5R CERAMIC CAPACITOR
, C
, D
4
2
: 133kΩ, 1%
: 0.1μF X5R CERAMIC CAPACITOR
: 22nF X5R OR BETTER TIMING CAPACITOR
: DUAL-COLOR (RED AND GREEN) LED IN ONE PACKAGE
: 80kΩ, 1%
PIN NAME
TEMP
VSEN
EPAD
R
TIME
V2P9
GRN
GND
IREF
RED
IMIN
C
BAT
VIN
IN
DT
EN
1
VIN is the input power source. It is recommended to have a 1Ω resistor in series with the input decoupling capacitor to
prevent an over-shoot voltage when the input cable is plugged in.
Open-drain LED drive pin. This pin sinks a constant-current 10mA to drive a green LED in a bi-color LED pack.
Open-drain LED drive pin. This pin sinks a constant-current 10mA to drive a red LED in a bi-color LED pack.
Timer Programming Input. The TIME pin determines the oscillation period by connecting a timing capacitor between this
pin and GND. The oscillator provides a time reference for the charger.
GND is the connection to system ground.
Delta Temperature Setting Input. This pin sets the temperature difference before and after the charging starts. This pin can
also be used as an indication whether or not the charger is charging.
Enable Input. Connect EN LOW to enable the charger. Pull it HIGH or leave it floating to disable the charger. This pin is
pulled up to 2.9V when left floating.
Untrimmed 2.9V voltage output. This pin outputs a 2.9V voltage source when the input voltage is above POR threshold,
independent on the EN pin input. The V2P9 output is used to power the LEDs, the NTC circuit, or for other functions. The
maximum output current is 30mA. This output can also be used as an indication for adapter presence.
This is the programming input for the constant charging current in a linear charger. In the typical application of a dual-mode
charger, the IREF pin programs the trickle charge current as well as the protection current level.
IMIN is the programmable input for the end-of-charge current.
Temperature setting input. An external NTC thermistor is connected to this pin for ambient temperature sensing.
Battery remote voltage sensing feedback pin. This pin allows remote sense of the battery pack voltage. Connect this pin
as close as possible to the battery positive terminal with a separate trace to minimize the impact of parasitic resistance.
This pin also serves the function of compensating for voltage drop caused by the connector contact resistance.
BAT is the charger output.
Exposed Pad. This pad is internally connected to GND. Connect as much copper as possible to this pad on the component
or other layers through thermal vias to maximize the thermal performance.
Input
C
2
D
2
4
C
1
D
1
R
R
R
R
1
T
S
2
VIN
V2P9
TEMP
DT
RED
GRN
GND
ISL6297
R
R
R
R
R
R
1
2
T
S
3
IN
: MURATA NCP18XH103J -- 10kΩ AT +25°C, 5% (0603 SIZE)
: 15kΩ, 1%
: TBD, VALUE DEPENDENT ON THE DT (1.37kΩ FOR +10°C delta)
: 10kΩ, 5% (R
: 41.2Ω
DESCRIPTION
: 1Ω (USED TO PREVENT OVERSHOOT WHEN CONNECTING THE CABLE)
VSEN
TIME
IREF
IMIN
BAT
EN
R
3
C
R
IREF
AND C
IMIN
TIME
C
3
To Battery
TO BATTERY
C
4
4
ARE FOR IMPROVING ESD PROTECTION)
R
3
NOTE: Temperature limit components
selected for a temperature Range of -5°C
to +45°C (not charging) See Example,
page 14
BAT+
BAT-
ID
July 30, 2007
FN9215.2