Datenblatt-Suchmaschine für elektronische Bauteile |
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FAN54014UCX Datenblatt(PDF) 4 Page - Fairchild Semiconductor |
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FAN54014UCX Datenblatt(HTML) 4 Page - Fairchild Semiconductor |
4 / 36 page © 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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