ISL9209IRZ-T Intersil, ISL9209IRZ-T Datasheet - Page 3

• Manufacturer Part Number: ISL9209IRZ-T
• Description: IC SAFETY SYSTEM CHARGER 12-TDFN
• Manufacturer: Intersil

Specifications of ISL9209IRZ-T

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 12-TDFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Descriptions
VIN (Pin1, 2)
The input power source. The VIN can withstand 30V input.
GND (Pin 3)
System ground reference.
WRN (Pin 4)
WRN is an open-drain logic output that turns LOW when any
protection event occurs.
NC (Pin 5, 6, 12)
No connection and must be left floating.
EN (Pin 8)
Enable input. Pull this pin to low or leave it floating to enable
the IC and force it to high to disable the IC.
Typical Applications
Block Diagram
INPUT
R
C
ILIM
1
INPUT
VIN
ILIM
GND
VIN
3
ISL9209
R
R
1
2
WRN
1.2V
WRN
OUT
VB
EN
Pre-reg
POR
Ref
Q
CP1
4
ISL6292
Charger
Battery
GND
Driver
R
FET
VB
Battery
Pack
FIGURE 1. BLOCK DIAGRAM
Logic
Q
Q
5
ISL9209
Q
2
1
CP2
R
CP3
5
VB (Pin 8)
Battery voltage monitoring input. This pin is connected to the
battery pack positive terminal via an isolation resistor.
ILIM (Pin 9)
Overcurrent protection threshold setting pin. Connect a
resistor between this pin and GND to set the OCP threshold.
OUT (Pin 10, 11)
Output pin.
EPAD
The exposed pad at the bottom of the TDFN package for
enhancing thermal performance. Must be electrically
connected to the GND pin.
EN
EA
Q
3
PART
R
R
R
0.8V
4
C
ILIM
VB
R
1
3
BUF
OUT
ILIM
VB
25kΩ
200kΩ to 1MΩ
1µF/16V X5R ceramic capacitor
R
R
ISL6292
Charger
Battery
VB
ILIM
DESCRIPTION
April 25, 2006
FN6274.0