HIP1020CKZ-T

The HIP1020CKZ-T is a Hot Plug Controller applies a linear voltage ramp to the gates of any combination of 3.3, 5 and 12V MOSFETs. The internal charge pump doubles a 12V bias or triples a 5V bias to deliver the high-side drive capability required when using more cost-effective N-channel MOSFETs. The 5V/ms ramp rate is controlled internally and is the proper value to turn on most devices within the Device-Bay-specified di/dt limit. If a slower rate is required, the internally-determined ramp rate can be over ridden using an optional external capacitor. When VCC = 12V, the charge pump ramps the voltage on HGATE from zero to 22V in about 4ms. This allows either a standard or a logic-level MOSFET to become fully enhanced when used as a high-side switch for 12V power control. The voltage on LGATE ramps from zero to 16V allowing the simultaneous control of 3.3V and/or 5V MOSFETs. When VCC = 5V, the charge pump enters voltage-triple mode.

• Rise time controlled to device-bay specifications
• No additional components required
• Internal charge pump drives N-channel MOSFETs
• Drives any combination of one, two or three outputs
• Internally-controlled turn-on ramp - optional capacitor selects slower rates
• Prevents false turn on during hot insertion
• Improves device bay peripheral size cost and complexity
• 1µA Shutdown current rating
• 3mA Operating current rating