BD9324EFJ-E2 Rohm Semiconductor, BD9324EFJ-E2 Datasheet
BD9324EFJ-E2
Specifications of BD9324EFJ-E2
Related parts for BD9324EFJ-E2
BD9324EFJ-E2 Summary of contents
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... Power Supply IC BD9322EFJ, BD9323EFJ, BD9324EFJ zDescription The BD9322EFJ, BD9323EFJ and BD9324EFJ are step-down regulators that integrate a low resistance high side N-channel MOSFET. It achieves continuous output current over a wide input supply range. Current mode operation provides fast transient response and easy phase compensation. ...
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... Hi-side FET On-resistance for BD9324EFJ Lo-side FET On-resistance Leak current N-channel Switch Current Limit for BD9322EFJ Switch Current Limit for BD9323EFJ Switch Current Limit for BD9324EFJ Maximum duty cycle General Enable Pull-up current Enable Threshold voltage Under Voltage Lockout threshold Under Voltage Lockout Hysteresis ...
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Block Diagram VIN EN VREF OPEN Automatic Start IBIAS FB ERR COMP SS SoftStart Typical Application Circuit (Thermal Pad) VIN 12V C_VC1 OSC VREG OCP UVLO TSD LVS S DRV LOGIC SLOPE PWM LVS R GND C_PC1 ...
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Block Operation xVREG A block to generate constant-voltage for DC/DC boosting. xVREF A block that generates internal reference voltage of 2.9 V (Typ.). xTSD/UVLO TSD (Thermal shutdown)/UVLO (Under Voltage Lockout) protection block. The TSD circuit shuts down IC at ...
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Physical Dimension (TBD) z Pin Assignment and Pin Function Pin No 4.9 0.1 (Max5.25 include.BURR) (3. 0.545 1PIN MARK S +0.05 0.42 0.08 ...
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Typical Performance Characteristics (Unless otherwise specified, VIN= 12V 2.5 2.4 2.3 2.2 2.1 2 1.9 1.8 1.7 1.6 1 VIN : [V] Fig. Circuit Current (No switching) 0.95 ...
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V -MAX: +120mV OUT V OUT V -MIN: -100m V OUT Div OUT I OUT Fig. Transient Response (VIN= 12V V = 3.3V L= 10uH Cout =22uF Iout= 0.2-1.0A ) OUT V : 200 mV ...
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Selecting Application Components (1) Output LC constant (Buck Converter) The inductance L to use for output is decided by the rated current I inductance. IL Fig. Adjust so that I + ¨I OMAX equation (Vcc - Vo) ...
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Phase compensation Phase Setting Method The following conditions are required in order to ensure the stability of the negative feedback circuit. xPhase lag should be 150° or lower during gain 1 (0 dB) (phase margin of 30° or higher). ...
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Selecting the Feedforward Capacitor L SW COMP Across the upper resistor R2, a bypass capacitor is needed to have a better transient response. C2 will set a zero in the loop together with R2. C2 ...
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Soft Start Function COMP 2.9V(typ Function VIN VIN EN The equivalent internal circuit. ex) EN signal (Hi active) The example of EN driving circuit. The buck converter has an adjustable oftStart function to prevent high ...
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Design of Feedback Resistance constant Set the feedback resistance as shown below. V OUT Fig. z I/O Equivalent Circuit Diagram 1.SS VIN 6.FB VIN Reference voltage V OUT ERR Fig. 2.BST REG SW 7.COMP VIN VIN ...
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Operation Notes 1) Absolute maximum ratings Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may result in IC damage. Assumptions should not be made regarding the state of ...
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AMBIENT TEMPERATURE: Ta [°C] The contents described herein are correct as of October, 2005 The contents described herein are subject to change without notice. For updates of the ...