ClampZero
Active Clamp IC with Integrated High-Voltage Switch, Pairs with InnoSwitch4 Family of Offline Switcher ICs
Applications
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Product
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Data Sheet
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Output Power (Max) - Enclosed, 230V
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Output Power (Max) - Open Frame, 230V
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Output Power (Max) - Enclosed, Univ
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Output Power (Max) - Open Frame, Univ
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Breakdown Voltage
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IC Package
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PowiGaN?
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Switching Frequency (max)
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Voltage - Input (Min)
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Voltage - Input (Max)
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Topology
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Internal Switch
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Product Type
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Temperature - Operating (Min)
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Temperature - Operating (Max)
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MSL Rating
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Data Sheet
View Data Sheet
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Output Power (Max) - Enclosed, 230V
70.0 W
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Output Power (Max) - Open Frame, 230V
75.0 W
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Output Power (Max) - Enclosed, Univ
70.0 W
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Output Power (Max) - Open Frame, Univ
75.0 W
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Breakdown Voltage
650 V
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IC Package
MinSOP-16A
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Switching Frequency (max)
140 kHz
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Voltage - Input (Min)
85 V
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Voltage - Input (Max)
265 V
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Topology
Flyback
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Internal Switch
Yes
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Product Type
IC
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Temperature - Operating (Min)
-40 °C
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Temperature - Operating (Max)
150 °C
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MSL Rating
3
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Data Sheet
View Data Sheet
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Output Power (Max) - Enclosed, 230V
90.0 W
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Output Power (Max) - Open Frame, 230V
100.0 W
|
Output Power (Max) - Enclosed, Univ
90.0 W
|
Output Power (Max) - Open Frame, Univ
100.0 W
|
Breakdown Voltage
650 V
|
IC Package
MinSOP-16A
|
|
Switching Frequency (max)
140 kHz
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Topology
Flyback
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Internal Switch
Yes
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Product Type
IC
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Temperature - Operating (Min)
-40 °C
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Temperature - Operating (Max)
150 °C
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MSL Rating
3
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|
|
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Data Sheet
View Data Sheet
|
Output Power (Max) - Enclosed, 230V
135.0 W
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Output Power (Max) - Open Frame, 230V
145.0 W
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Output Power (Max) - Enclosed, Univ
135.0 W
|
Output Power (Max) - Open Frame, Univ
145.0 W
|
Breakdown Voltage
750 V
|
IC Package
MinSOP-16A
|
PowiGaN?
Yes
|
Switching Frequency (max)
140 kHz
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Topology
Flyback
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Internal Switch
Yes
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Product Type
IC
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Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
MSL Rating
3
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|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Enclosed, 230V
200.0 W
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Output Power (Max) - Open Frame, 230V
220.0 W
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Output Power (Max) - Enclosed, Univ
200.0 W
|
Output Power (Max) - Open Frame, Univ
220.0 W
|
Breakdown Voltage
750 V
|
IC Package
MinSOP-16A
|
PowiGaN?
Yes
|
Switching Frequency (max)
140 kHz
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Topology
Flyback
|
Internal Switch
Yes
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Product Type
IC
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Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
MSL Rating
3
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|
Product Details
The ClampZero IC pairs with the InnoSwitch™4 family of ICs to eliminate energy wasted due to switching losses in the clamp and primary switch. This dramatically improves power supply efficiency – easily exceeding 95% - while maintaining the flexibility and low component count of the flyback architecture.
The ClampZero IC is an active clamping circuit which recycles otherwise wasted leakage inductance energy. The ClampZero incorporates a high-side power switch and level shifted self-biased controller which receives communication from a low-side transceiver connected to the InnoSwitch4 primary controller.
By ensuring zero voltage switching across all line and load conditions and in both CCM and DCM operating modes, ClampZero combines with InnoSwitch4 to implement a highly flexible active clamp flyback solution. In a typical application paired with the InnoSwitch4 IC, the low switching losses permit use of a high switching frequency, minimizing the physical size of the transformer and resulting in an extremely small PCB footprint.
Product Highlights
Highly Integrated, Compact Footprint
- Eliminates switching losses in InnoSwitch4 primary switch
- Captures and recycles leakage inductance energy
- Dramatically improves power supply efficiency
- Interfaces seamlessly with InnoSwitch4
- Powered directly from InnoSwitch4 BYPASS pin
- Self-biased at start-up
- Operates in both DCM and CCM modes
Advanced Protection / Safety Features
- Integrated temperature sensing and hysteretic thermal shutdown
Green Package
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Halogen free and RoHS compliant
