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FAN54040 데이터시트(PDF) 3 Page - Fairchild Semiconductor |
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FAN54040 데이터시트(HTML) 3 Page - Fairchild Semiconductor |
3 / 41 page © 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN54040 – FAN54047 • Rev. 1.0.2 3 Block Diagram SW SYSTEM LOAD Q2 L1 Q5 SDA SCL VBUS CBUS VBAT SYS GATE CSYS External PMOS Q3 POK_B ILIM CHARGE PUMP Q3 DIS PGND PGND STAT AGND + Q1B Q1A Q1 PMID PWM MODULATOR CC and CV Battery Charger CMID CBAT NTC REF RREF TEMP SENSE I2C INTERFACE LOGIC AND CONTROL CREF IBUS & VBUS CONTROL VBUS OVP POWER OK Q4B Q4A Q4 T BATTERY PMID Q1A Q1B Greater than VBAT ON OFF Less than VBAT OFF ON SYS Q4A Q4B Greater than VBAT ON OFF Less than VBAT OFF ON Figure 2. IC and System Block Diagram Table 2. Recommended External Components Component Description Vendor Parameter Typ. Unit L1 1 H, 20%, 2.2 A, 2016 Taiyo Yuden MAKK2016T1R0M or Equivalent L 1.0 H DCR (Series R) 75 m CBAT, CSYS 10 F, 20%, 6.3 V, X5R, 0603 Murata: GRM188R60J106M TDK: C1608X5R0J106M C 10 F CMID 4.7 F, 10%, 6.3 V, X5R, 0603 Murata: GRM188R60J475K TDK: C1608X5R0J475K C (2) 4.7 F CBUS, 1.0 F, 10%, 25 V, X5R, 0603 Murata GRM188R61E105K TDK:C1608X5R1E105M C 1.0 F Q5 PMOS,12 V, 16 m , MLP2x2 Fairchild FDMA905P RDS(ON) 16 m CREF 1 F, 10%, 6.3 V, X5R, 0402 C 1.0 F Note: 2. 6.3 V rating is sufficient for CMID since PMID is protected from over-voltage surges on VBUS by Q3. |
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