GR8875NR Schematic ( PDF Datasheet ) - grenergy

Teilenummer	GR8875NR
Beschreibung	Green-Mode PWM Controller
Hersteller	grenergy
Logo
Gesamt 14 Seiten Preliminary GR8875N Series Green-Mode PWM Controller with High Voltage Startup Circuit Features High-Voltage (700V) Startup Circuit Very Low Startup Current (<30uA) Under-Voltage Lockout (UVLO) 100mW Standby Power Non-Audible-Noise Green-Mode Control 65KHz Switching Frequency with Jittering for Reducing EMI Cycle-by-Cycle Peak Current Limiting Internal Leading-Edge Blanking Internal Slope Compensation Gate Output Maximum Voltage Clamp Internal 6mS Soft Start Soft Driving for Reducing EMI AC Input Brownout Protection with Hysteresis Programmable Over Temperature Latch (OTP) Function Over-Voltage Protection (OVP) on VCC pin Over-Load Protection (OLP) Flexible Latch Shutdown Combination: OVP; OVP+OTP 500mA Driving Capability SOP-8 /SOP-7/DIP-8 Green Package Ordering and Marking Information Applications Adaptor/ Open Frame Power Supply LCD Monitor/TV Power Supply Description The GR8875N series is a highly-integrated, low startup current, current mode PWM controller with green-mode function, high-voltage start up circuit, and provides several protections such as OLP, OVP, and OCP for fault conditions. A high-voltage current source supplies the start up current and the traditional start up resistance can be saved in order to reduce the start up power loss. The controller also includes the leading-edge blanking of the current sensing, internal slope compensation and cycle-by-cycle peak current limiting. It is also integrated soft driving for reducing EMI, gate output voltage clamp function for protecting power MOSFET. SOP-7 /SOP-8 / DIP-8 Code 1 8 9 A B GH IJ Year 2008 2009 2010 2011 2016 2017 2018 2019 Code 2 1 2 3 4 ● ● ● 9 A B C Month Jan. Feb. Mar. Apr. Sep. Oct. Nov. Dec. Grenergy OPTO Inc. reserves the right to make changes to improve reliability or manufacture ability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. 2013.04 Ver. G Copyright Grenergy OPTO, Inc. www.grenergy-ic.com 1 Preliminary GR8875N Series Rising Time, Load Capacitance = 1000pF Falling Time, Load Capacitance = 1000pF VGATE-Clamp (VCC = 25V ) PWM SECTION Maximum Duty Cycle Soft Start Time (Freq=65kHz) *Latch PIN FUNCTION OPTION (See below Fig.1) Over Voltage Protection Threshold Voltage OVP Debounce, Fs = 65kHz Over Temperature Protection Threshold Voltage OTP Debounce, Fs = 65kHz Output Current from RTL Pin Clamped Voltage VCC De-latch Voltage Below equations are for reference only. 5 150 nS 5 50 nS 5 11 13 15 V 70 75 80 % 6 mS 3 3.2 3.5 3.8 V 3 100 uS 3 0.95 1.05 1.15 V 3 100 uS 3 92 100 108 uA 3 2.2 V 3.4 V Equation 1: [0.9v × RHV +1K ] Vac − on(RMS) = 1K 2 Equation 2: [ 0.8v × RHV +1K ] Vac − off (RMS ) = 1K 2 2013.04 Ver. G Copyright Grenergy OPTO, Inc. www.grenergy-ic.com 6 6 Page Package Information DIP-8 Preliminary GR8875N Series SYMBOL MILLIMETERS MIN. MAX. A 5.33 A1 0.38 A2 2.92 4.95 b 0.36 0.56 b2 1.14 1.78 c 0.20 0.35 D 9.01 10.16 D1 0.13 E 7.62 8.26 E1 6.10 7.11 e 2.54 BSC eA 7.62 BSC eB 10.92 L 2.92 3.81 Note: 1. Followed from JEDEC MS-001 BA. DIP-8 MIN. 0.015 0.115 0.014 0.045 0.008 0.355 0.005 0.300 0.240 0.115 INCHES 0.100 BSC 0.300 BSC MAX. 0.210 0.195 0.022 0.070 0.014 0.400 0.325 0.280 0.430 0.150 2. Dimension D, D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 10 mil. 2013.04 Ver. G Copyright Grenergy OPTO, Inc. www.grenergy-ic.com 12 12 Page
Seiten	Gesamt 14 Seiten
PDF Download	[ GR8875NR Schematic.PDF ]

Link teilen

Besondere Datenblatt

Teilenummer	Beschreibung	Hersteller
GR8875N	Green-Mode PWM Controller	grenergy
GR8875NH	Green-Mode PWM Controller	grenergy
GR8875NL	Green-Mode PWM Controller	grenergy
GR8875NR	Green-Mode PWM Controller	grenergy

Teilenummer	Beschreibung	Hersteller
CD40175BC	Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.	Fairchild Semiconductor
KTD1146	EPITAXIAL PLANAR NPN TRANSISTOR.	KEC