LM5035MHX/NOPB National Semiconductor, LM5035MHX/NOPB Datasheet - Page 24

• Manufacturer Part Number: LM5035MHX/NOPB
• Description: IC PWM BCK BST FLYBK INV 20TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM5035MHX/NOPB

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 92%
• Voltage - Supply: 13 V ~ 105 V
• Buck: Yes
• Boost: Yes
• Flyback: Yes
• Inverting: Yes
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Frequency-max: 2MHz
• For Use With: LM5035EVAL - BOARD EVALUATION LM5035
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM5035MHX

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winding on transformer T1 provides power to the LM5035
VCC pin when the output is in regulation. The input voltage
UVLO thresholds are
for decreasing V
PWR
. The circuit can be shut down by driving
≊
34V for increasing V
PWR
, and
≊
32V
24
the ON/OFF input (J2) below 1.25V with an open-collector or
open-drain circuit. An external synchronizing frequency can
be applied through a 100pF capacitor to the RT input (U1 pin
5). The regulator output is current limited at
≊
34A.