ISL6524CB Intersil, ISL6524CB Datasheet
ISL6524CB
Specifications of ISL6524CB
Available stocks
Related parts for ISL6524CB
ISL6524CB Summary of contents
Page 1
... PACKAGE ISL6524CB SOIC ISL6524CBZ SOIC (See Note) (Pb-free) ISL6524CBZA SOIC (See Note) (Pb-free) ISL6524EVAL1 Evaluation Board *Add “-T” suffix for tape and reel. NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...
Page 2
Block Diagram VSEN3 1.5V or 1.26V VAUX EA3 - DRIVE3 + x0.75 x0.75 + DRIVE4 - EA4 + 1.8V or 1.26V VSEN4 - FIX INHIBIT DRIVE2 VSEN2 - + EA2 UV2 - + x0.90 + SET 1. CLK ...
Page 3
IN V OUT2 +3. OUT3 +12V IN + OUT2 1.2V C OUT2 VTT POWERGOOD +3. OUT3 1.5V C OUT3 Q5 V OUT4 1.8V C OUT4 3 ...
Page 4
Absolute Maximum Ratings Supply Voltage .+15V CC ...
Page 5
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Refer to Figures 1, 2 and 3 (Continued) PARAMETER Gain-Bandwidth Product Slew Rate PWM CONTROLLERS GATE DRIVERS UGATE Source UGATE Sink LGATE Source LGATE Sink PROTECTION FAULT Sourcing Current OCSET Current Source ...
Page 6
Functional Pin Descriptions VCC (Pin 28) Provide a 12V bias supply for the IC to this pin. This pin also provides the gate bias charge for all the MOSFETs controlled by the IC. The voltage at this pin is monitored ...
Page 7
VOUT4 can only be set from 1.7V up) by way of an external resistor divider connected at the corresponding VSEN pin. The new output voltage set by the external resistor divider can be determined using the following formula: R ...
Page 8
ATX 12V 10V VTTPG SS13 ATX 5V SS24 PGOOD 0V 3.0V ATX 3.3V V (1.8V) OUT4 V (1.5V) OUT3 TIME FIGURE 6. SOFT-START INTERVAL The time interval is dependent upon ...
Page 9
Soft-start capacitor C quickly discharged. The counter increments to 2. The soft- start cycle repeats at T3 and trips the overcurrent comparator. The SS24 pin voltage increases to above 4. and the counter increments to ...
Page 10
TABLE 1. OUT1 OUTPUT VOLTAGE PROGRAM PIN NAME VID3 VID2 VID1 VID0 ...
Page 11
Dedicate another solid layer as a power plane and break this plane into smaller islands of common voltage levels. The power plane should support the input power and output power nodes. Use copper filled polygons on the top and bottom ...
Page 12
Compensation Break Frequency Equations 1 ----------------------------------- × × P1 2π ------------------------------------------------------ - × × P2 2π Figure 12 shows an ...
Page 13
During this interval the difference between the inductor current and the transient current level must be supplied by the output capacitor(s). Minimizing the response time can minimize the output capacitance required. The response ...
Page 14
OR LESS +12V VCC ISL6524 Q1 UGATE PHASE LGATE PGND GND FIGURE 13. UPPER GATE DRIVE - DIRECT V Rectifier CR1 is a clamp that catches the negative inductor swing during the dead time between the ...
Page 15
... FIGURE 14. TYPICAL APPLICATION CIRCUIT memory controller hub voltage (V and +12VDC. For detailed information on the circuit, including a Bill-of-Materials and circuit board description, see Application Note AN9925. Also see Intersil web page (www.intersil.com), for the latest information. ), the GTL OUT1 ), and the ...
Page 16
... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...