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PDF GR8935M Data sheet ( Hoja de datos )
| Número de pieza | GR8935M | |
| Descripción | Current Mode PWM Power Switch | |
| Fabricantes | grenergy | |
| Logotipo |  |
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Preliminary GR8935M
Current Mode PWM Power Switch
Features
Current mode PWM
Very low startup current
Under-voltage lockout (UVLO)
Non-audible-noise green-mode control
Fixed switching frequency of 50KHz
Cycle-by-cycle peak current limiting
Internal leading-edge blanking
Internal slope compensation
Internal 5ms soft start
VCC over voltage clamp
Over-voltage protection (OVP) on VCC Pin
Over-load protection (OLP)
Applications
Switching AC/DC power battery charger
Digital camera
Open-frame SMPS
PDA power supply
Description
GR8935M integrates a PWM controller and high
voltage power MOSFET of 650V. GR8935M has the
features of very low startup current and current
mode PWM control with green-mode function at
light load. These features enable the power supply
to easily meet even the strictest power conservation
requirements. The integrated functions of GR8935M
also include the leading-edge blanking of the current
sensing, internal slope compensation, cycle-by-
-cycle peak current limiting and soft start. OCP, OVP
and OLP provide protection performance for fault
conditions. To protect the power MOSFET from
being damaged by supply over voltage, the internal
gate voltage of GR8935M is clamped at 18V.
GR8935M improves the performance and reduces
the cost of power supplies.
Ordering and Marking Information
GR8935M
Package Code
J: DIP-8
RoHS Code
G: Green (Halogen Free) Device
L : PB Free Device
DIP-8
GR8935M
X X XXX
Code 1
Code 2
Serial No.
Code 1 8
Year 2008
Code 2 1
Month Jan.
9
2009
2
Feb.
A
2010
3
Mar.
B
2011
4
Apr.
●●●
G
2016
9
Sep.
H
2017
A
Oct.
I
2018
B
Nov.
J
2019
C
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. 10 Ver. 1E Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
1
1 page  
Typical Performance Characteristics
15.8
UVLO (on) voltage vs. Temp.
15.6
15.4
15.2
15
14.8
-40
0 40 80
Temperature(℃)
120
0.85
0.82
0.79
0.76
0.73
0.7
-40
Fig. 1
OCP Trim Level vs. Temp.
0 40 80
Temperature(℃)
120
12
11
10
9
8
7
-40
Fig. 3
Start-up Current vs.Temp.
0 40 80
Temperature(℃)
120
Fig. 5
Preliminary GR8935M
10
9.8
9.6
9.4
9.2
9
-40
UVLO (off) Voltage vs.Temp.
0 40 80
Temperature(℃)
120
5
4
3
2
1
0
0
52
51
50
49
48
47
-40
Fig. 2
Icc vs. Vcc
5 10 15 20 25 30
Vcc(V)
Fig. 4
Frequency vs. Temp.
0 40 80
Temperature(℃)
120
Fig. 6
2011. 10 Ver. 1E Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet GR8935M.PDF ] | |
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