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FAN54015 数据表(PDF) 3 Page - Fairchild Semiconductor |
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FAN54015 数据表(HTML) 3 Page - Fairchild Semiconductor |
3 / 34 page © 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN54015 • Rev. 1.0.0 3 Pin Configuration Top View Bottom View Figure 3. WLCSP-20 Pin Assignments Pin Definitions Pin # Name Description A1, A2 VBUS Charger Input Voltage and USB-OTG output voltage. Bypass with a 1 F capacitor to PGND. A3 NC No Connect . No external connection is made between this pin and the IC’s internal circuitry. A4 SCL I 2C Interface Serial Clock. This pin should not be left floating. B1-B3 PMID 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 F, 6.3 V capacitor to PGND. B4 SDA I 2C Interface Serial Data. This pin should not be left floating. C1-C3 SW Switching Node . Connect to output inductor. C4 STAT Status . Open-drain output indicating charge status. The IC pulls this pin LOW when charging. D1-D3 PGND 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 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 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 DISABLE 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 Regulator Output . Connect to a 1 F capacitor to PGND. This pin can supply up to 2mA of DC load current. The output voltage is PMID, which is limited to 1.8 V. E4 VBAT Battery Voltage . Connect to the positive (+) terminal of the battery pack. Bypass with a 0.1 F 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 |
类似零件编号 - FAN54015 |
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类似说明 - FAN54015 |
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