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PDF GR8835A Data sheet ( Hoja de datos )
| Número de pieza | GR8835A | |
| Descripción | Green-Mode PWM Controller | |
| Fabricantes | Grenergy | |
| Logotipo |  |
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GR8835A
Green-Mode PWM Controller with Integrated Protections
Features
Current mode PWM
Very low startup current
Under-voltage lockout (UVLO)
Non-audible-noise green-mode control
Programmable switching frequency
Cycle-by-cycle peak current limiting
Internal leading-edge blanking
Internal slope compensation
Internal 4ms soft start (Fs=65KHz)
VCC over voltage clamp
Gate output voltage clamp
Soft driving for reducing EMI
Over-voltage protection (OVP) on VCC Pin
Over-load protection (OLP)
Over-current protection (OCP) on CS Pin
300mA driving capability
● Meet the standard of Green Partner, SONY
SS-00259
Ordering and Marking Information
Applications
Switching AC/DC power adapter and battery
charger
Open-frame SMPS
Description
The GR8835A is a highly-integrated, low startup
current, current mode PWM controller with
Green-mode function. This function enables the
power supply to easily meet even the strictest
power conservation requirements. The integrated
functions also include the leading-edge blanking
of the current sensing, internal slope
compensation, cycle-by-cycle peak current
limiting and soft start. OLP, OCP and OVP provide
protection performance for fault conditions. To
protect the external power MOSFET from being
damaged by supply over voltage, the GR8835A
gate voltage is clamped about 13V.
The GR8835A improves the performance and
reduces the cost of power supplies. It is with both
8-pin DIP and 6-pin SOT-26 package.
DIP-8
SOT-26
Code 1 8 9 A B
GH I J
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.
2011.02. Ver 1.5 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
1
1 page  
Typical Performance Characteristics
GR8835A
Fig.3
2011.02. Ver 1.5 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
5
5 Page 
Package Information
GR8835A
SOT-26
SYMBOL
MILLIMETERS
INCHES
MIN.
MAX.
MIN.
MAX.
A 1.45 0.057
A1
0.00
0.15
0.000
0.006
A2
0.90
1.30
0.035
0.051
b
0.30
0.50
0.012
0.020
c
0.08
0.22
0.003
0.009
D
2.70
3.10
0.106
0.122
E
2.60
3.00
0.102
0.118
E1
1.40
1.80
0.055
0.071
e 0.95 BSC
0.037 BSC
e1 1.90 BSC
0.075 BSC
L
0.30
0.60
0.012
0.024
θ 0o 8 o 0o 8 o
Note : 1. Followed from JEDEC TO-178 AB.
2. Dimension D and E1 do not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs
shall not exceed 10 mil per side.
2011.02. Ver 1.5 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet GR8835A.PDF ] | |
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