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BQ51221YFPT Datasheet(PDF) 3 Page - Texas Instruments |
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BQ51221YFPT Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 49 page  A1 PGND A2 PGND A3 PGND A4 PGND A5 PGND A6 PGND B1 AC1 B2 AC1 B3 AC1 B4 AC2 B5 AC2 B6 AC2 C1 BOOT1 C2 RECT C3 RECT C4 RECT C5 RECT C6 BOOT2 D1 OUT D2 OUT D3 OUT D4 OUT D5 OUT D6 OUT E1 CLAMP1 E2 AD E3 /AD_EN E4 SCL E5 VIREG E6 CLAMP2 F1 COMM1 F2 FOD F3 LPRBEN TERM F4 SDA F5 LPRB1 WPG F6 COMM2 G1 VO_REG G2 ILIM G3 CM_ILIM G4 TS/CTRL G5 TMEM G6 LPRB2 PD_DET bq51221 www.ti.com SLUSBS9A – FEBRUARY 2014 – REVISED JULY 2014 6 Device Comparison Table Device Mode More bq51221 Dual (WPC v1.1, PMA) Adjustable output voltage, highest system efficiency, I2C bq51021 WPC v1.1 Adjustable output voltage, highest system efficiency, I2C bq51020 WPC v1.1 Adjustable output voltage, highest system efficiency, standalone 7 Pin Configuration and Functions YFP 42 Pins (Top View) Pin Functions PIN TYPE DESCRIPTION NAME NUMBER AC1 B1, B2, B3 I AC input power from receiver resonant tank AC2 B4, B5, B6 I AD E2 I Adapter sense pin AD-EN E3 O Push-pull driver for PFET that can pass AD input to the OUT pin; used for adapter mux control BOOT1 C1 O Bootstrap capacitors for driving the high-side FETs of the synchronous rectifier BOOT2 C6 O COMM1 F1 O Open-drain FETs used to communicate with primary by varying reflected impedance COMM2 F6 O CLAMP1 E1 O Open-drain FETs used to clamp the secondary voltage by providing low impedance across secondary CLAMP2 E6 O Enables or disables communication current limit; can be pulled high or low to disable or enable CM_ILIM G3 I communication current limit FOD F2 I Input that is used for scaling the received power message ILIM G2 I/O Output current or overcurrent level programming pin Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: bq51221 |
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