rt9603 ETC-unknow, rt9603 Datasheet
rt9603
Available stocks
Related parts for rt9603
rt9603 Summary of contents
Page 1
... Both drivers incorporate adaptive shoot-through protect- ion to prevent upper and lower MOSFETs from conduct- ing simultaneously and shorting the input supply. An unique feature of the RT9603 driver is the addition of over-voltage protection in the event of upper MOSFET direct shorted before power-on. The RT9603 detects the ...
Page 2
... RT9603 Typical Application Circuit +12V 1N4148 4 VCC C1 1uF 3 NC PWM 2 IN INPUT Note: The traces that run from the controller ISPx and ISNx pins, should be run together next to each other and Kelvin connected to the Q2. Place both R2 and R3 as close to the PWM Controller as possible. ...
Page 3
... Function Block Diagram Internal IN Timing Diagram IN DRVH DRVL T FDRVL T PDDRVL DS9603-00 November 2003 Preliminary VCC 5V Shoot-Through Protection R Control Power-On OVP Logic R Shoot-Through Protection T RDRVH RT9603 BST DRVH SW VCC DRVL PGND T PDDRVH T FDRVH T RDRVL www.richtek.com 3 ...
Page 4
... RT9603 Absolute Maximum Ratings Supply Voltage (V ) ------------------------------------------------------------------------------------ 15V l CC BST to SW ------------------------------------------------------------------------------------------------ 15V GND ----------------------------------------------------------------------------------------------- 4V to 15V l PWM Input Voltage ------------------------------------------------------------------------------------- GND - 0. DRVH ------------------------------------------------------------------------------------------------------ V l DRVL ------------------------------------------------------------------------------------------------------- GND - 0. Package Thermal Resistance l SOP-8, ------------------------------------------------------------------------------------------------ 67°C/W JA Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------ 260°C l Storage Temperature Range ------------------------------------------------------------------------- 40°C to 150°C ...
Page 5
... DS9603-00 November 2003 Preliminary Symbol Test Conditions 12V D RVH VCC 12V D RVH VCC 12V D RVL VCC 12V D RVL VCC “ ” Absolute Maximum Ratings may cause permanent damage to the device. These are RT9603 Min Typ Max Units -- 2 1 1.6 -- www.richtek.com 5 ...
Page 6
... RT9603 Applications Information The RT9603 is designed to drive both high side and low side N-Channel MOSFET through externally input PWM control signal. It has power-on protection function which held DRVH and DRVL low before VCC up across the rising threshold voltage. After the initialization, the PWM signal takes the control ...
Page 7
... Select the Bootstrap Capacitor Figure 3 shows part of the bootstrap circuit of RT9603. The V (A) (7) RT9603) provides a voltage to the gate of the high side power MOSFET. This supply needs to be ensured that the MOSFET can be driven. For this, the capacitance C 0.4(A) (8) has to be selected properly determined by following constraints ...
Page 8
... BST VCC DRVH 1uF RT9603 SW IN PWM DRVL PGND Figure 4. Test Circuit www.richtek.com 8 Preliminary Figure 5 shows the power dissipation of the RT9603 function of frequency and load capacitance. The value of the C from 100kHz to 1MHz 1000 will lead the over- ...
Page 9
... Over-Voltage Protection Function at Power-On An unique feature of the RT9603 driver is the addition of over-voltage protection in the event of upper MOSFET direct shorted before power-on. The RT9603 detects the fault condition during initial start-up, the internal power- on OVP sense circuitry will rapidly drive the output lower MOSFET on before the multi-phase PWM controller takes control ...
Page 10
... RT9603 Outline Dimension Symbol RICHTEK TECHNOLOGY CORP. Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 www.richtek.com 10 Preliminary Dimensions In Millimeters Min Max 4.801 5.004 3.810 3.988 1.346 1.753 0.330 0.508 1.194 1 ...