INN3370C Switcher Datasheet

INN3370C Datasheet, PDF, Equivalent


Part Number

INN3370C

Description

Digitally Controllable Off-Line CV/CC QR Flyback Switcher

Manufacture

Power Integrations

Total Page 30 Pages
Datasheet
Download INN3370C Datasheet


INN3370C
InnoSwitch3-Pro Family
Digitally Controllable Off-Line CV/CC QR Flyback Switcher IC
with Integrated High-Voltage Switch, Synchronous Rectification
and FluxLink Feedback
Product Highlights
Digitally Controlled via I2C Interface
• Dynamic adjustment of power supply voltage and current
• Telemetry for power supply status and fault monitoring
Comprehensive set of configurable protection features
• PowiGaN™ technology – up to 100 W without heatsinks (INN3379C
and INN3370C)
Highly Integrated, Compact Footprint
Multi-mode Quasi-Resonant (QR) / DCM / CCM flyback controller,
high-voltage switch, secondary-side sensing and synchronous
rectifier driver
Optimized efficiency across line and load range
Integrated FluxLink™, HIPOT-isolated, feedback link
• Instantaneous transient response
• Drives low-cost N-channel FET series load switch
• Integrated 3.6 V supply for external MCU
EcoSmart™ – Energy Efficient
• Less than 30 mW no-load including line sense and MCU
• Enables power supply designs that easily comply with all global
energy efficiency regulations
• Low heat dissipation
Advanced Protection / Safety Features
• Input voltage monitoring with accurate brown-in/brown-out and
overvoltage protection
Output OV/UV fault detection with independently configured
responses
• Open SR FET gate detection
Hysteretic thermal shutdown
• Programmable watchdog timer for system faults
Full Safety and Regulatory Compliance
• Reinforced insulation
• Isolation voltage >4000 VAC
100% production HIPOT compliance testing
• UL1577 and TUV (EN60950) safety approved
Green Package
Halogen free and RoHS compliant
Applications
High efficiency USB PD 3.0 + PPS/QC adapters
Multiprotocol adapters including QuickCharge, AFC, FCP, SCP
• Direct-charge mobile device chargers
• Multi-chemistry tool and general purpose battery chargers
• Adjustable CV and CC LED ballast
Description
The InnoSwitch™3-Pro series family of ICs dramatically simplifies the
development and manufacturing of fully programmable, highly efficient
power supplies, particularly those in compact enclosures. The universal
I2C interface enables dynamic control of output voltage and current
along with many configurable features. Telemetry provides reporting
of programmed features and fault modes.
D
InnoSwitch3-Pro
Primary Switch
and Controller
S
V
CONTROL
BPP
Figure 1. Typical Application.
VBUS
RTN
Secondary
Control IC
uVCC
SDA
SCL
I2C
MCU
CC1
CC2
PI-8379-020119
Figure 2. High Creepage, Safety-Compliant InSOP-24D Package.
Output Power Table1
Product 4,5
230 VAC ± 15%
Adapter2
Open
Frame3
85-265 VAC
Adapter2
Open
Frame3
INN3365C/3375C 25 W
30 W
22 W
25 W
INN3366C/3376C 35 W
40 W
27 W
36 W
INN3377C
40 W
45 W
36 W
40 W
INN3367C
45 W
50 W
40 W
45 W
INN3368C
55 W
65 W
50 W
55 W
INN3379C
80 W
85 W
65 W
75 W
INN3370C
90 W
100 W
75 W
85 W
Table 1. Output Power Table.
Notes:
1. Maximum output power is dependent on the design, with maximum IC
package temperature kept <125 °C.
2. Minimum continuous power in a typical non-ventilated enclosed typical size
adapter measured at 40 °C ambient.
3. Minimum peak power capability.
4. C Package: InSOP-24D.
5. INN336xC − 650 V MOSFET, INN337xC − 725 V MOSFET, INN3379C and
INN3370C − 750 V PowiGaN switch.
InnoSwitch3-Pro devices are ideal for AC/DC power supply applications
where fine (10 mV, 50 mA) output voltage and current adjustment are
necessary. Typical implementations comprise a system microprocessor
or dedicated microcontroller with an I2C port that is used to configure,
control and supervise operation of the power sub-system. The uVCC pin
provides a bias supply for the microprocessor in stand-alone implemen-
tations such as USB PD adapters and chargers.
www.power.com
This Product is Covered by Patents and/or Pending Patent Applications.
November 2019

INN3370C
InnoSwitch3-Pro
DRAIN
(D)
UNDER/OVER
INPUT VOLTAGE (V)
PRIMARY BYPASS
REGULATOR
PRIMARY BYPASS
(BPP)
LINE
INTERFACE
Power
Switch
SenseFET
THERMAL
SHUTDOWN
BPP
DRIVER
SOURCE
(S)
Figure 3. Primary Controller Block Diagram.
CONTROL LOGIC
RECEIVER
CONTROLLER
From
Secondary
Controller
PI-8492-112618
FORWARD
(FWD)
SYNC RECTIFIER DRIVE
(SR)
VO
DETECTOR
BPSUV
REGULATOR
4.4 V
SECONDARY
BYPASS
(BPS)
VO
FluxLink
FEEDBACK
DRIVER
FW_PK
HANDSHAKE/
SEC-FAULT
CONTROL
INH
FW_PK
INH
TsMAX
OSCILLATOR/
TIMER
tOFF(MIN)
tSECINH(MAX)
SECONDARY
FAULT
SEC_REQ
+
-
VREF
+
-
IREF
uVCC
LDO
VOUT
VB/D
CHARGE PUMP /
LOAD DISCHARGE
DIGITAL
CONTROLLER
SDA
SCL
IS PI-8478-080819
Figure 4. Secondary Controller Block Diagram.
2
Rev. H 11/19
www.power.com


Features InnoSwitch3-Pro Family Digitally Contro llable Off-Line CV/CC QR Flyback Switch er IC with Integrated High-Voltage Swit ch, Synchronous Rectification and FluxL ink Feedback Product Highlights Digita lly Controlled via I2C Interface • Dy namic adjustment of power supply voltag e and current • Telemetry for power s upply status and fault monitoring • C omprehensive set of configurable protec tion features • PowiGaN™ technology – up to 100 W without heatsinks (INN 3379C and INN3370C) Highly Integrated, Compact Footprint • Multi-mode Quasi- Resonant (QR) / DCM / CCM flyback contr oller, high-voltage switch, secondary-s ide sensing and synchronous rectifier d river • Optimized efficiency across l ine and load range • Integrated FluxL ink™, HIPOT-isolated, feedback link Instantaneous transient response • Drives low-cost N-channel FET series l oad switch • Integrated 3.6 V supply for external MCU EcoSmart™ – Energy Efficient • Less than 30 mW no-load including line sense and MCU • Enables power supply desi.
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