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ADP2323ACPZ-R7 数据表(PDF) 3 Page - Analog Devices |
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ADP2323ACPZ-R7 数据表(HTML) 3 Page - Analog Devices |
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3 / 32 page  Data Sheet ADP2323 Rev. A | Page 3 of 32 FUNCTIONAL BLOCK DIAGRAM + – + 0.6V ISS1 SS1 FB1 COMP1 Σ AMP1 CONTROL LOGIC AND MOSFET DRIVER WITH ANTICROSS PROTECTION BST1 SW1 I1MAX I1MAX HICCUP MODE NFET1 VDRV DL1 0.7V 0.54V OVP PGOOD1 PVIN1 UVLO EN1 CURRENT- LIMIT SELECTION OSCILLATOR PGND SCFG SYNC RT CLK1 CLK2 SLOPE RAMP1 SLOPE RAMP2 5V REGULATOR EN1_BUF ADP2323 EN1_BUF EN2_BUF INTVCC PVIN1 GND MODE MODE_BUF SKIP MODE THRESHOLD MODE_BUF SKIP CMP1 SLOPE RAMP1 CLK1 – + ZERO CURRENT CMP VDRV + TRK1 + – + – 1.2V 4µA 1µA OCP CMP1 + – + – + – + – DRIVER DRIVER BOOST REGULATOR + – + 0.6V ISS2 SS2 FB2 COMP2 Σ AMP2 CONTROL LOGIC AND MOSFET DRIVER WITH ANTICROSS PROTECTION BST2 SW2 I2MAX I2MAX HICCUP MODE NFET2 VDRV DL2 0.7V 0.54V OVP PGOOD2 PVIN2 UVLO EN2 CURRENT- LIMIT SELECTION EN2_BUF SKIP MODE THRESHOLD MODE_BUF SKIP CMP2 SLOPE RAMP2 CLK2 – + ZERO CURRENT CMP + TRK2 + – + – 1.2V 4µA 1µA OCP CMP2 + – + – + – + – DRIVER DRIVER BOOST REGULATOR ACS1 ACS2 Figure 3. Functional Block Diagram |
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