LM5034MTCX/NOPB National Semiconductor, LM5034MTCX/NOPB Datasheet - Page 19

• Manufacturer Part Number: LM5034MTCX/NOPB
• Description: IC CTLR PWM DUAL CMODE 20TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM5034MTCX/NOPB

• Pwm Type: Current Mode
• Number Of Outputs: 2
• Frequency - Max: 1MHz
• Duty Cycle: 94%
• Voltage - Supply: 13 V ~ 100 V
• Buck: Yes
• Boost: Yes
• Flyback: No
• Inverting: Yes
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-TSSOP
• Frequency-max: 2MHz
• For Use With: LM5034EVAL - BOARD EVALUATION LM5034
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM5034MTCX

Driver Outputs
Thermal Shutdown
The LM5034 should be operated so the junction temperature
does not exceed 125˚C. If a junction temperature transient
reaches 165˚C (typical), the Thermal Shutdown circuit acti-
vates the V
The V
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regulator and the four output drivers are disabled,
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Disable and Drivers Off lines (see Figure 18).
(Continued)
FIGURE 22. Compound Gate Driver
FIGURE 23. Output Overlap Timing
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the SS1, SS2, and RES pins are grounded, and the soft-start
current is set to 50 µA. This puts the LM5034 in a low power
state helping to prevent catastrophic failures from accidental
device overheating. When the junction temperature reduces
below 145˚C (typical hysteresis = 20˚C), the V
enabled and a startup sequence is initiated (Figure 3).
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regulator is