IRDC3843W International Rectifier, IRDC3843W Datasheet - Page 13

• Manufacturer Part Number: IRDC3843W
• Description: BOARD EVAL FOR IR3843W 2A CONV
• Manufacturer: International Rectifier

Specifications of IRDC3843W

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Simultaneous Tracking at Power Up and Power Down
Vin=12V, Vo=1.8V, Io=2A, Room Temperature, No Air Flow
In order to run the IR3843W in the simultaneous tracking mode, the following steps should be
- Remove R16 from the board.
- Set the value of R14 and R28 as R2 (4.99K) and R3 (3.16K), respectively.
- Connect the controlling input across SEQ and AGND test points on the board. This voltage
- The controlling input should be applied after the SS pin is clamped to 3.0V.
10/27/2009
taken:
should be at least 1.15 time greater than Vo. For the following test results a 0-3.3V source is
applied to SEQ input.
Fig. 18: Simultaneous Tracking a 3.3V input at power-up and shut-down
Ch2: Vout Ch3:SS Ch4: Seq
IRDC3843W
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