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PDF GR8837H Data sheet ( Hoja de datos )

Número de pieza GR8837H
Descripción Green-Mode PWM Controller
Fabricantes Grenergy 
Logotipo Grenergy Logotipo



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Preliminary GR8837H
Green-Mode PWM Controller with Hiccup Protection
Features
Current mode control
Standby power below 100mW
Under-voltage lockout (UVLO)
Non-audible-noise green-mode control
100KHz switching frequency
Internal leading-edge blanking
Internal slope compensation
Internal soft start
Gate output voltage clamp
Jitter and soft driving for reducing EMI
External OVP latch mode
External OTP latch mode
Over-load protection (OLP)-Auto recovery
Mode
Vcc OVP protection- Auto recovery Mode
300mA driving capability
Description
The GR8837H is a highly-integrated, low startup
current, current mode PWM controller with
green-mode function. The integrated functions also
include the leading-edge blanking of the current
sensing, internal slope compensation, soft start
OLP, and OCP. Besides, The RTL pin latch function
by injecting a high over 3.5V to provide OVP latch
off and low below 1V to provide OTP latch off
protection. These functions enable the power supply
to easily meet even the strictest power
requirements.
The GR8837H improves the performance and
reduces the cost of power supplies. It is 6-pin
SOT-26 package.
Application
Switching AC/DC Adapter
Battery Charger
Open frame SMPS
Ordering and Marking Information
SOT-26
Code 1 8 9 A B
GH
IJ
Year 2008 2009 2010 2011
2016
●●●
Code 2 1 2 3 4
9
2017
A
2018 2019
BC
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.
2011.04 Ver. A Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
1

1 page




GR8837H pdf
Typical Performance Characteristics
Preliminary GR8837H
2011.04 Ver. A Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
5

5 Page





GR8837H arduino
Package Information
SOT-26
Preliminary GR8837H
SYMBOL
MILLIMETERS
MIN.
MAX.
A 1.45
A1 0.00 0.15
A2 0.90 1.30
b 0.30 0.50
c 0.08 0.22
D 2.70 3.10
E 2.60 3.00
E1 1.40 1.80
e 0.95 BSC
e1 1.90 BSC
L 0.30 0.60
θ 0o 8 o
Note: 1. Followed from JEDEC TO-178 AB.
SOT-26
MIN.
0.000
0.035
0.012
0.003
0.106
0.102
0.055
0.012
0o
INCHES
0.037 BSC
0.075 BSC
MAX.
0.057
0.006
0.051
0.020
0.009
0.122
0.118
0.071
0.024
8o
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
2011.04 Ver. A Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
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11 Page







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