rt9241 ETC-unknow, rt9241 Datasheet
rt9241
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rt9241 Summary of contents
Page 1
... The settings of current sense, droop tuning and over current protection are independent to compensation circuit of voltage loop. The feature greatly facilitates the flexibility of CPU power supply design and tuning. The RT9241 uses a 5-bit DAC of 1.1V to 1.85V (25mV/step) output with load compensation to meet the strict VRM transient requirement ...
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... RT9241 Absolute Maximum Ratings Supply Voltage Input, Output or I/O Voltage Ambient Temperature Range Operating Junction Temperature Range Storage Temperature Range Power Dissipation SOP-20 Package Thermal Resistance SOP-20, θ JA Lead Temperature (Soldering, 10 sec.) Electrical Characteristics (V = 5V, GND = 0V 25°C, unless otherwise specified) ...
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... GND DS9241-00 November 2001 Preliminary Symbol Test Conditions VSEN Rising VSEN Rising Oscillator INH OVP, PGOOD Current POR Logic Balance Processor Current Limit Droop Control EA COMP RT9241 Min Typ Max Units -- 10 -- µA 116 120 124 % -- 108 -- % -- INH PWM Logic PWM1 & ...
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... RT9241 VID4 VID3 Note: (1) 0:Connected to GND (2) 1:Open www.richtek-ic.com.tw ...
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... Typical Application Circuit DS9241-00 November 2001 Preliminary RT9241 www.richtek-ic.com.tw 5 ...
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... RT9241 www.richtek-ic.com.tw 6 Preliminary DS9241-00 November 2001 ...
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... Preliminary PWM1 (Pin 17), PWM2 (Pin 16) PWM outputs for each driven channel. Connect these pins to the PWM input of the MOSFET driver. PGOOD (Pin 19) Power good open-drain output. VDD (Pin 20) IC power supply. Connect this pin supply. individual converter RT9241 www.richtek-ic.com.tw 7 ...
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... RT9241 Simplified Block Diagram Control Loops for a Two Phase Converter VDAC Droop ADJ Control EA FB GND COMP R LOAD Voltage loop www.richtek-ic.com.tw 8 Preliminary PWMCP Current Balance PWMCP Processor SS Control OUT PWM1 PWM Logic & Driver PWM2 PWM Logic & Driver ...
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... Please tie the both PWM output to driver input for IN correct converter start-up. Current sensing setting RT9241 senses the current of low side MOSFET in each synchronous rectifier when it is conducting for channel current balance and droop tuning. The differential sensing GM amplifier converts the voltage ...
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... I X4 ADJ Protection and SS function For OVP, the RT9241 detects the V pin. Eliminate the parasitic delay and noise influence on the PCB path for fast and accurate detection. The trip point of OVP is 120% of normal output level. The PWM outputs are pulled low to turn on the low side MOSFET and turn off the high side MOSFET of the synchronous rectifier at OVP ...
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... Preliminary VCC PVCC RT9600 PWM +5V GND VDD PWM1 ISP1 VCC COMP ISN1 PVCC FB VSEN RT9600 ADJ PWM2 PWM GND RT9241 DVD ISP2 ISN2 SS GND RT9241 12V BOOT UGATE PHASE LGATE 12V BOOT UGATE PHASE LGATE Current Sense Components www.richtek-ic.com.tw +V CORE 11 ...
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... RT9241 Package Information C Symbol www.richtek-ic.com.tw 12 Preliminary Dimensions In Millimeters Min Max 12.598 13.005 7.391 7.595 2.362 2.642 0.330 0.508 1.194 1.346 0.229 0.330 0.102 0.305 10.008 10.643 0.381 1.270 20–Lead SOP Plastic Package Dimensions In Inches ...
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... No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 DS9241-00 November 2001 Preliminary RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek-ic.com.tw RT9241 www.richtek-ic.com.tw 13 ...