RT9712 データシートの表示（PDF） - Richtek Technology
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RT9712 Datasheet PDF : 14 Pages
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RT9712
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, VIN ------------------------------------------------------------------------------------------- 6V
z EN Voltage -------------------------------------------------------------------------------------------------------------- −0.3V to 6V
z Power Dissipation, PD @ TA = 25°C
SOP-8/MSOP-8 ------------------------------------------------------------------------------------------------------- 469mW
z Package Thermal Resistance (Note 2)
SOP-8/MSOP-8, θJA -------------------------------------------------------------------------------------------------- 160°C/W
z Junction Temperature ------------------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260°C
z Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Model) ------------------------------------------------------------------------------------------ 2kV
Recommended Operating Conditions (Note 4)
z Supply Input Voltage, VIN ------------------------------------------------------------------------------------------- 2.7V to 5.5V
z EN Voltage -------------------------------------------------------------------------------------------------------------- 0V to 5.5V
z Junction Temperature Range ---------------------------------------------------------------------------------------- −40°C to 100°C
z Ambient Temperature Range ---------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VIN = 5V, CIN = 1μF, COUT1 = COUT2 = 10μF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Input Quiescent Current
IQ
Switch On, RLOAD Open
--
Input Shutdown Current
ISHDN
Switch Off, RLOAD Open
--
Switch On
Resistance
RT9712A/B
RT9712C/D
RDS(ON)
IOUTx = 1.3A, VIN = 5V,
Each Channel
IOUTx = 1A, VIN = 5V,
Each Channel
---
--
RT9712A/B
1.5
Current Limit
RT9712C/D
ILIM
VOUTx = 4V
1.1
Short Circuit RT9712A/B
Fold-back
Current
RT9712C/D
ISC_FB
VOUTx = 0, Measured Prior to
Thermal Shutdown
--
--
ENx/ENx
Logic-Low Voltage VIL
VIN = 2.7V to 5.5V
--
Threshold Logic-High Voltage VIH
VIN = 2.7V to 5.5V
2
ENx/ENx Input Current
IENx/ENx VENx/ENx = 0V to 5.5V
--
Output Leakage Current
ILEAKAGE VENx = 0V, VENx = 5V, RLOAD = 0Ω -
Output Turn-On Rising Time
TON_RISE 10% to 90% of VOUT Rising
--
FLGx Output Resistance
RFLG
ISINK = 1mA
--
FLGx Off Current
IFLG_OFF VFLGx = 5V
--
FLGx Delay Time
TD
From Fault Condition to FLG
Assertion
5
Typ
70
0.1
90
90
2
1.5
1.4
1
--
--
0.01
0.5
175
20
0.01
12
Max
90
1
110
110
2.8
2.1
--
--
0.8
--
0.1
1
--
--
1
20
Unit
μA
mΩ
mΩ
A
A
V
μA
μA
μs
Ω
μA
ms
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
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is a registered trademark of Richtek Technology Corporation.
DS9712-04 November 2012
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