http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




  Richtek Technology Electronic Components Datasheet  

RT9719 Datasheet

Charging System Safety Device

No Preview Available !

RT9719 pdf
RT9719
Charging System Safety Device
General Description
The RT9719 is an integrated circuit (IC) designed to replace
passive device in charging system with extra protection
function. It is optimized to protect low voltage system
from up to 28V high voltage input. The IC monitors the
input voltage to make sure all parameters are operating in
normal range. It also monitors its own temperature and
turn off the MOSFET when the chip temperature exceeds
140°C. When the input voltage exceeds the threshold,
the IC turns off the power MOSFET within 1us to remove
the power before any damage occurs. User can monitor
the adapter input voltage from CHRIN pin which has 50mA
current capability. The gate of the P-MOSFET will be
controlled by the external charging controller from
GATEDRV pin if all parameters are operating in normal
range.
The RT9719 is available in SOT-23-6 and WDFN-8L 2x2
tiny packages to achieve best solution for PCB space and
total BOM cost saving considerations.
Features
z No External Blocking Diode Requiring
z Overvoltage Turn Off Time of Less Than 1μs
z High Accuracy Protection Thresholds
z Over Temperature Protection
z High Immunity of False Triggering Under Transients
z Thermal Enhanced SOT-23-6 and 8-Lead WDFN
Packages
z RoHS Compliant and Halogen Free
Application
z Cellular Phones
z Digital Cameras
z PDAs and Smart Phones
z Portable Instruments
Pin Configurations
(TOP VIEW)
Ordering Information
RT9719
Package Type
E : SOT-23-6
QW : WDFN-8L 2x2 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
OVP
Default : 6.25V
A : 7.20V
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
ACIN 1
ACIN 2
ACIN 3
GND 4
8 ISENSE
7 ISENSE
6 CHRIN
9 5 GATEDRV
WDFN-8L 2x2
654
23
SOT-23-6
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9719-01 April 2011
www.richtek.com
1


  Richtek Technology Electronic Components Datasheet  

RT9719 Datasheet

Charging System Safety Device

No Preview Available !

RT9719 pdf
RT9719
Typical Application Circuit
VACIN
RT9719
ACIN
CHRIN
CIN
1µF
GATEDRV
GND
ISENSE
COUT
1µF
SOC
CHRIN
GATEDRV
ISENSE
0.2
1µF
VBAT
Battery
Functional Pin Description
Pin No.
Pin Name
SOT-23-6 WDFN-8L 2x2
1
-- NC
No Internal Connection.
Pin Function
2
4
GND
Analog Ground.
3
1, 2, 3
ACIN
The Input Power Source. The VIN can withstand up to 30V input.
4 7, 8 ISENSE Connect to ISENSE resistor and ISENSE pin of charging controller.
5
6
CHRIN
Voltage is equal to VIN as VIN in power good range and providing ~25mA
for system at most.
6 5 GATEDRV External control pin for controlling the P-MOSFET by charging controller.
--
9
(Exposed pad)
GND
Ground Pin. The exposed pad must be soldered to a large PCB and
connected to GND for maximum power dissipation.
Function Block Diagram
ACIN
GND
SW
CHRIN
Control
Logic
MUX
SW
INOVP UVLO
OTP
GATEDRV
ISENSE
www.richtek.com
2
DS9719-01 April 2011


Part Number RT9719
Description Charging System Safety Device
Maker Richtek Technology Corporation
Total Page 10 Pages
PDF Download
RT9719 pdf
Download PDF File
RT9719 pdf
View for Mobile






Related Datasheet

1 RT9711 1.5A High-Side Power Switches Richtek Technology Corporation
Richtek Technology Corporation
RT9711 pdf
2 RT9711A 1.5A/0.6A High-Side Power Switches Richtek Technology Corporation
Richtek Technology Corporation
RT9711A pdf
3 RT9711A 1.5A/0.6A High-Side Power Switches Richtek
Richtek
RT9711A pdf
4 RT9711B 1.5A/0.6A High-Side Power Switches Richtek Technology Corporation
Richtek Technology Corporation
RT9711B pdf
5 RT9711B 1.5A/0.6A High-Side Power Switches Richtek
Richtek
RT9711B pdf
6 RT9711C 1.5A/0.6A High-Side Power Switches Richtek
Richtek
RT9711C pdf
7 RT9711D 1.5A/0.6A High-Side Power Switches Richtek
Richtek
RT9711D pdf
8 RT9712 1A/1.5A High-Side Dual Power Switches Richtek Technology Corporation
Richtek Technology Corporation
RT9712 pdf
9 RT9715 2A/1.5A/1.1A/0.7A High-Side Power Switches RichTek
RichTek
RT9715 pdf




Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components