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FAN54014UCX Datenblatt(PDF) 4 Page - Fairchild Semiconductor

Teilenummer FAN54014UCX
Bauteilbeschribung  FAN54010 / FAN54011 / FAN54012 / FAN54013 / FAN54014
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Hersteller  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN54014UCX Datenblatt(HTML) 4 Page - Fairchild Semiconductor

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© 2011 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5401X Family • Rev. 1.0.4
4
Pin Configuration
Top View
Bottom View
Figure 4. WLCSP-20 Pin Assignments
Pin Definitions
Pin #
Name
Part # Description
A1, A2
VBUS
ALL
Charger Input Voltage
and USB-OTG output voltage. Bypass with a 1 µF capacitor to PGND.
A3
NC
ALL
No Connect
. No external connection is made between this pin and the IC’s internal circuitry.
A4
SCL
ALL
I
2C Interface Serial Clock. This pin should not be left floating.
B1-B3
PMID
ALL
Power Input Voltage
. Power input to the charger regulator, bypass point for the input current
sense, and high-voltage input switch. Bypass with a minimum of 4.7 µF, 6.3 V capacitor to
PGND.
B4
SDA
ALL
I
2C Interface Serial Data. This pin should not be left floating.
C1-C3
SW
ALL
Switching Node
. Connect to output inductor.
C4
STAT
ALL
Status
. Open-drain output indicating charge status. The IC pulls this pin LOW when charging.
D1-D3
PGND
ALL
Power Ground
. Power return for gate drive and power transistors. The connection from this pin
to the bottom of CMID should be as short as possible.
D4
OTG
ALL
On-The-Go
. Enables boost regulator in conjunction with OTG_EN and OTG_PL bits (see Table
16)
. On VBUS Power-On Reset (POR), this pin sets the input current limit for t15MIN charging.
E1
CSIN
ALL
Current-Sense Input
. Connect to the sense resistor in series with the battery. The IC uses this
node to sense current into the battery. Bypass this pin with a 0.1
F capacitor to PGND.
E2
AUXPWR
10, 11,
12
Auxiliary Power
. Connect to the battery pack to provide IC power during High-Impedance
Mode. Bypass with a 1 µF capacitor to PGND.
E2
DISABLE
13, 14,
Charge Disable
. If this pin is HIGH, charging is disabled. When LOW, charging is controlled by
the I
2C registers. When this pin is HIGH, the 15-minute timer is reset. This pin does not affect
the 32-second timer.
E3
VREG
ALL
Regulator Output
. Connect to a 1 µF capacitor to PGND. This pin can supply up to 2 mA of DC
load current. For FAN54010-FAN54012, the output voltage is PMID, which is limited to 6.5 V.
For FAN54013-FAN54014, the output voltage is regulated to 1.8 V.
E4
VBAT
ALL
Battery Voltage
. Connect to the positive (+) terminal of the battery pack. Bypass with a 0.1 μF
capacitor to PGND if the battery is connected through long leads.
C1
B1
A1
A2
C3
B3
A3
C2
D1
D3
D2
B2
C4
B4
A4
D4
E1
E3
E2
E4
C1
B1
A1
C3
B3
A3
A2
C2
D1
D3
D2
B2
C4
B4
A4
D4
E1
E3
E2
E4


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