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SS9176CS-10 Arkusz danych(PDF) 6 Page - Silicon Standard Corp. |
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SS9176CS-10 Arkusz danych(HTML) 6 Page - Silicon Standard Corp. |
6 / 12 page www.SiliconStandard.com 6 of 12 SS9175/6 PIN DESCRIPTIONS Pin No. Symbol Function Description 1 (1) PWRGD Power-good Output of the error amplifier and input to the PWM comparator. It is used for feedback loop compensation. 2 (2) IN1 Feedback Inverting input of the error amplifier. It is normally connected to the switching power supply output through a resistor divider. 3 (3) COMP1 Compensation Output of the error amplifier and input to the PWM comparator. It is used for feedback loop compensation. 4 (4) VCC Power Supply Supply voltage input. 5 CL1+ Over-current Over-current adjustment and high-side MOSFET supply voltage sense pin. Connect a resistor from this pin to high-side supply voltage. 6 CL1- Over-current Over-current sense pin. 7 (5) BST1 Boost supply Supply for high-side driver. Connect to bootstrap circuit. 8 (6) DH1 High-side drive High-side MOSFET gate driver pin. 9 (7) DL1 Low-side drive Low-side MOSFET gate driver pin. 10 (8) PGND Driver ground Driver circuit GND supply. Connect to MOSFET’s GND. 11 (9) BSTC Buffered supply Voltage supply for internal low-side driver circuit and for high-side bootstrap circuit’s diode input. Its output is 6V if chip supply voltage VCC > 6.5V. If VCC < 6.5V, then BSTC = VCC. Need a 10uF decoupling capacitor connected to PGND. 12 (10) DL2 Low-side drive Low-side MOSFET gate driver pin. 13 (11) DH2 High-side drive High-side MOSFET gate driver pin. 14 (12) BST2 Boost supply Supply for high-side driver. Connect to bootstrap circuit. 15 (13) CL2- Over-current Over-current sense pin. 16 (14) CL2+ Over-current Over-current adjustment and high-side MOSFET supply voltage sense pin. Connect a resistor from this pin to high-side supply voltage. 17 (15) SS/EN Soft-start/Enable A 25uA internal current source charges an external capacitor for soft start. Pull down this pin to disable the chip. 18 COMP2 [NC] Compensation Output of the error amplifier and input to the PWM comparator. It is used for feedback loop compensation. 19 IN2 [NC] Feedback Inverting input of the error amplifier. It is normally connected to the switching power supply output through a resistor divider. 20 (16) GND Control ground Control circuit GND supply. Note: Inside ( ) is the pin assignment for SS9176CS. Inside [ ] is for SS9175CS. PIN CONFIGURATIONS PWRGD PGND DL1 DH1 BST1 CL1+ CL1 VCC COMP1 IN1 1 10 9 8 7 6 5 4 3 2 20 11 12 13 14 15 16 17 18 19 SS/ENB IN2 GND BSTC DL2 DH2 BST2 CL2- CL2+ COMP2 SS/ENB PGND DL1 DH1 BST1 PWRGD VCC COMP IN GND BSTC DL2 DH2 BST2 CL2- CL+ 10 9 11 12 13 14 15 16 1 8 7 6 5 4 3 2 SS9175 SS9176 Rev.2.02 12/29/2003 PRELIMINARY |
Podobny numer części - SS9176CS-10 |
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Podobny opis - SS9176CS-10 |
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