PFC driver. STNRGPF12 Datasheet

STNRGPF12 driver. Datasheet pdf. Equivalent

Part STNRGPF12
Description 2-channel interleaved PFC driver
Feature STNRGPF12 2-channel interleaved PFC driver with embedded digital inrush current limiter function Da.
Manufacture STMicroelectronics
Datasheet
Download STNRGPF12 Datasheet



STNRGPF12
STNRGPF12
2-channel interleaved PFC driver with embedded digital inrush
current limiter function
Datasheet - production data
Features
Digital inrush current limiter function
Interleaved PFC digital controller
Two interleaved channels PFC
Continuous conduction mode
Fixed frequency operation
Average current mode control
Mixed signal architecture
Soft start-up management
Burst mode support
Load feed forward
Input voltage feed forward
Channel current balance function
Programmable phase shedding
Status indicator signaling for cooling system,
PFC Fault and PFC OK
Configurable driver by means of dedicated
graphic tool
Programmable fast overcurrent and thermal
protection
Serial communication port available for:
– Device programming;
– Monitoring of the PFC parameters
Suitable for >600 W applications:
– Welding, air conditioner
– Industrial motors
– UPS, chargers, high power systems
Customizable firmware
Configuration via eDesign suite
Embedded memory
– Program memory: 32 Kbytes flash
– Data retention 15 years at 85 °C after 10
kcycles at 25 °C
– Data memory: 1 Kbyte true data E2PROM;
data retention: 15 years at 85 °C after 100
kcycles at 85 °C
– Flash and E2PROM with read while write
(RWW) and error correction code (ECC)
– RAM: 6 Kbytes
Communication interfaces
– UART asynchronous protocol for
bootloader support and monitoring of the
PFC parameters
Operating temperature: -40 °C up to 105 °C
Description
The STNRGPF12 digital controller is designed for
interleaved PFC boost topologies and intended
for use in high power applications.
It features a digital inrush current control
implemented with a solid state solution based on
a silicon controlled rectifier. The controller can
drive up to 2 interleaved channels.
The device works in CCM at fixed frequency with
average current mode control, in applications
based on a mixed signal (analog/digital)
architecture.
The controller can be configured through a
dedicated software tool (eDesignSuite) to match a
wide range of specific applications. The tool
generates a full schematic including a complete
list of material and the final binary object code
(FW) to be downloaded to the IC.
Table 1. Device summary
Part number
Package
STNRGPF12
TSSOP38
May 2019
This is information on a product in full production.
DS12895 Rev 1
1/47
www.st.com



STNRGPF12
Contents
Contents
STNRGPF12
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Inrush current limiter function description . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1.1 Inrush current limiter function with resistive element . . . . . . . . . . . . . . . . 8
1.1.2 Inrush current limiter function with controlled bridge . . . . . . . . . . . . . . . . 8
2 STNRGPF12 control architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 STNRGPF12 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Voltage and current loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Measurements section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.1 AC input voltage measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.2 Ambient temperature measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.3 Output current measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2.4 Output voltage sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2.5 Channel current measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Analog comparators section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Driving & Interleaving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5 Programming section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.6 Status indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.7 Startup & inrush current limiter function . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.7.1 Inrush current limiter function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.7.2 PFC soft power-ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.8 Fan control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4 Pinout and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1 Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.3 Input/output specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.1 Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2/47 DS12895 Rev 1





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