SI9978DB Vishay, SI9978DB Datasheet
![MOSFET & Power Driver ICs SI9978 Demo Board](/photos/16/14/161430/soic-24_sml.jpg)
SI9978DB
Specifications of SI9978DB
Related parts for SI9978DB
SI9978DB Summary of contents
Page 1
... SOIC (surface mount) packages, specified to operate over the industrial (−40 to +85_C) temperature range. CAP CAP A B High-Side DD U.V. Lockout Input Logic One Shot One Shot Si9978 Vishay Siliconix D ESD Protected D Fault Output Bootstrap Reg. 23 CAP A Charge Pump Bootstrap Reg. 19 CAP B Charge Pump 17 GT ...
Page 2
... Si9978 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltage on pins 2−7 with respect to ground . . . . . . . . . . . Voltage on pin Voltage on pins 17, 19, 21 Voltage on pins 18 RECOMMENDED OPERATING CONDITIONS SPECIFICATIONS Parameter Symbol Power Supply Voltage Range Logic Voltage Supply Current Inputs (DIR, PWM, EN, QS, MODE, BRK) High-State Low-State ...
Page 3
... TRUTH TABLE HALF-BRIDGE MODE DIR/ EN/ QS/ PWM MODE Document Number: 70011 S-40804—Rev. E, 26-Apr-04 BRK BRK Si9978 Vishay Siliconix CL/ FAULT/ FAULT FAULT Undervoltage CL/ FAULT/ FAULT FAULT Overcurrent Overcurrent Undervoltage www.vishay.com Condition Normal Normal Operation Brake Disable Overcurrent Condition Normal Normal Operation ...
Page 4
... Si9978 Vishay Siliconix PIN CONFIGURATION AND ORDERING INFORMATION SO-24 (Wide Body EN/ DIR/ PWM/ QS/ MODE 6 BRK 7 CL/FAULT FAULT/FAULT Top View PIN DESCRIPTION Pin internally generated voltage connected to this DD pin to allow connection of a decoupling capacitor. A minimum recommended. Pin 2: EN/EN A The EN input allows normal operation when at logic “1”, and turns all gate drive outputs off when at logic “ ...
Page 5
... The timing resistor and capacitor for the current limit one-shot are connected to this pin. The values of the resistor and capacitor determine the off time set by the one-shot. The Document Number: 70011 S-40804—Rev. E, 26-Apr-04 Vishay Siliconix one-shot is triggered when the current limit comparator detects an overcurrent condition. Pin 13 and Pin 14, IL ...
Page 6
... Si9978 Vishay Siliconix APPLICATION CIRCUIT EN/EN 3 DIR DIR/IN 4 PWM PWM/ QS/IN 6 MODE 7 BRK BRK FAULT F 100 GND www.vishay.com CAP CAP GND Si9978 FIGURE 1. Basic H-Bridge Circuit LITTLE FOOTr OUT OUT Document Number: 70011 S-40804—Rev. E, 26-Apr-04 ...
Page 7
... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...