InnoSwitch-CH Family
Off-Line CV/CC Flyback Switcher IC with Integrated 650 V MOSFET,
Synchronous Rectification and Feedback
Product Highlights
Highly Integrated, Compact Footprint
• Incorporates flyback controller, 650 V MOSFET, secondary-side
sensing and synchronous rectification driver
Sꢅ FET
™
• Integrated FluxLink , HIPOT-isolated, feedback link
• Exceptional CV/CC accuracy, independent of transformer design or
external components
• Instantaneous transient response ±5% CV with 0%-100%-0%
load step
D
S
InnoSwitch-CH
™
EcoSmart – Energy Efficient
VOUT
Priꢆary FET
and Controller
• <10 mW no-load at 230 VAC when supplied by transformer bias
winding
Secondary
Control IC
BPP
IS
• Easily meets all global energy efficiency regulations
• Low heat dissipation
PI-6ꢀꢁ6-ꢂ0ꢃ0ꢂꢄ
Advanced Protection / Safety Features
• Primary sensed output OVP
Figure 1. Typical Application/Performance.
• Secondary sensed output overshoot clamp
• Secondary sensed output OCP to zero output voltage
• Hysteretic thermal shutdown
Full Safety and Regulatory Compliance
• 100% production HIPOT compliance testing equivalent to
6 kV DC/1 sec
• Reinforced insulation
• Isolation voltage >3,500 VAC
• UL1577 and TUV (EN60950) safety approved
• EN61000-4-8 (100 A/m) and EN61000-4-9 (1000 A/m) compliant
Figure 2. High Creepage, Safety-Compliant eSOP Package.
Green Package
• Halogen free and RoHS compliant
Applications
• Chargers and adapters for smart mobile devices
• High efficiency, low voltage, high current power supplies
Output Power Table
85-265 VAC
Product3,4
Adapter1
Description
Peak or
Open Frame2
™
The InnoSwitch -CH family of ICs dramatically simplifies the develop-
ment and manufacturing of low-voltage, high current power supplies,
particularly those in compact enclosures or with high efficiency require-
ments. The InnoSwitch-CH architecture is revolutionary in that the
devices incorporate both primary and secondary controllers, with sense
elements and a safety-rated feedback mechanism into a single IC.
INN20x3K
INN20x4K
INN20x5K
12 W
15 W
20 W
15 W
20 W
25 W
Table 1. Output Power Table.
Notes:
1. Minimum continuous power in a typical non-ventilated enclosed typical size
adapter measured at 40 °C ambient. Max output power is dependent on the
design. With condition that package temperature must be < = 125 °C.
2. Minimum peak power capability.
Close component proximity and innovative use of the integrated
communication link permit accurate control of a secondary-side
synchronous rectification MOSFET and optimization of primary-side
switching to maintain high efficiency across the entire load range.
Additionally, the minimal DC bias requirements of the link enables the
system to achieve less than 10 mW no-load in challenging applications
such as smart-mobile device chargers.
3. Package: eSOP-R16B.
4. x = 0 (No cable compensation), x = 2 (6% cable compensation).
www.power.com
October 2017
This Product is Covered by Patents and/or Pending Patent Applications.