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ISL9212AIRZ Scheda tecnica(PDF) 3 Page - Renesas Technology Corp

Il numero della parte ISL9212AIRZ
Spiegazioni elettronici  Charging System Safety Circuit
PDF  11 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL9212AIRZ Scheda tecnica(HTML) 3 Page - Renesas Technology Corp

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ISL9212A
FN6384 Rev 0.00
Page 3 of 11
November 14, 2006
Pin Descriptions
VIN (Pins 1, 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 (Pins 5, 6, 12)
No connection and must be left floating.
EN (Pin 7)
Enable input. Pull this pin to low or leave it floating to enable
the IC and force it to high to disable the IC.
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 (Pins 10, 11)
Output pin.
EPAD
The exposed pad at the bottom of the DFN package for
enhancing thermal performance. Must be electrically
connected to the GND pin.
Typical Applications
Block Diagram
INPUT
ISL6292
BATTERY
CHARGER
RVB
C1
RILIM
BATTERY
PACK
ISL9212A
ILIM
WRN
VIN
GND
VB
OUT
EN
PART
DESCRIPTION
RILIM
25k
RVB
200k
 to 1M
C1
1µF/16V X5R ceramic capacitor
+
FIGURE 1. BLOCK DIAGRAM
POR
PRE-REG
REF
VIN
VB
GND
1.2V
0.8V
R
1
R
2
Q
1
INPUT
CP1
ISL6292
BATTERY
CHARGER
CP2
OUT
R
ILIM
ILIM
FET
DRIVER
EA
R
3
R
4
R
VB
CP3
Q
2
Q
3
BUF
WRN
Q
4
LOGIC
EN
Q
5
R
5
+



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