IR1176S International Rectifier, IR1176S Datasheet - Page 6

• Manufacturer Part Number: IR1176S
• Description: IC DRIVER SYNC 5V 4A 20-SSOP
• Manufacturer: International Rectifier

Specifications of IR1176S

• Configuration: Low-Side
• Input Type: Non-Inverting
• Current - Peak: 4A
• Number Of Configurations: 2
• Number Of Outputs: 2
• Voltage - Supply: 4 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Delay Time: -
• High Side Voltage - Max (bootstrap): -

IR1176
Fig. 3 Gate drive characteristics and definitions
Phase Lock Loop Design Equations:
1 - Resistor to set VCO Ceter Frequency:
Rvco (KΩ) = [1E2 x Vchgpump(V
) / fvco(KHz)] x Kvco _ dc(KHz/Volt)
DC
Example (A): Choose Vchgpump = 1.5V, desired frequency (fvco) = 300KHz
Rvco = [1E2 x 1.5 /300] x 62 Hz = 31 KΩ
2 - Small Signal gain for VCO:
Kvco_ac (KHz/Volt) = 1E2 x Kvco_dc (KHz/Volt)/Rvco(KΩ)
Example (B): Choosing same conditions as in example A:
Kvco_ac = 1E2 x 62 / 31 = 200 KHz/volt
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