R5114x Series
AEC-Q100 Compliant
42 V System Power Supply with Ultra-low Power Watchdog Timer
for Automotive Application
No. EC-408-180523
OVERVIEW
The R5114x is a system power supply IC with an ultra-low power watchdog timer (VR + VD + WDT) that has an input
voltage range of 3.5 V to 42 V.
KEY BENEFITS
Consists of a voltage regulator, a voltage detector and a watchdog timer that provides a system power supply, a
power supply voltage monitoring and a system malfunction monitoring.
Equipped with an auto monitoring stop
(1)
to cease the watchdog timer monitoring at light load.
KEY SPECIFICATIONS
TYPICAL APPLICATION
V
IN
VDD
VOUT
C
OUT
R1
Microprocessor
V
CC
•
•
•
•
•
•
•
•
Input Voltage Range (Absolute Maximum Rating):
3.5 V to 42.0 V (50.0 V)
Supply Current: Typ. 8.5 µA
Protections: Thermal Shutdown, Output Current Limiting,
Short-circuit Current Limiting
R5114Sxx2C
C
IN
CE
CE Control
GND
CD
C
D
C
TW
WADJ
INH
TW
DOUT
WDO
SCK
RESET
I/O
I/O
R2
Voltage Regulator (VR) Section
Output Voltage Range: 3.3 V to 5.0 V
Output Voltage Accuracy: ±1.6%
(−40°C ≤ Ta ≤ 125°C)
Output Current: 250 mA
C
IN
, C
OUT
: 0.1 µF, Ceramic capacitor
C
TW
: Capacitor for setting watchdog timer
C
D
: Capacitor for setting reset delay time
Voltage Detector (VD) Section
Detection Voltage Threshold Range: 2.5 V to 4.8 V
Detection Voltage Accuracy: ±1.6% (−40°C
≤ Ta ≤ 125°C)
SELECTION GUIDE
Product Name
R5114Sxx1∗-E2-#E
R5114Sxx2∗-E2-#E
Package
HSOP-8E
HSOP-18
Quantity per Reel
1,000 pcs
1,000 pcs
Watchdog Timer (WDT) Section
Watchdog Timer Accuracy:
−17.8%
to 21.7%
(−40°C
≤ Ta ≤ 125°C)
•
PACKAGES
xx: Set Output Voltage (V
SET
) and Set Detection Voltage (-V
DSET
)
Assign a code starting from 01 to designate a desired combination of V
SET
and –V
DSET
. Refer to
Product-specific Electrical Characteristics
for
detailed information.
∗:
Other Functions
Package
∗
A
HSOP-8E
B
HSOP-8E
C
HSOP-18
WADJ
Fixed
(2)
No
Adjustable
(3)
WDO Pin
No
No
Yes
RESETB/DOUT Pin
RESETB
RESETB
DOUT
#: Select the quality class
HSOP-8E
5.2 x 6.2 x 1.6* mm
*maximum dimension
HSOP-18
5.2 x 6.2 x 1.6* mm
*maximum dimension
#
A
K
Operating Temp. Range
−40°C
to 125°C
−40°C
to 125°C
Test Temp.
25°C, High
Low, 25°C, High
AEC-Q100
Grade 1
Grade 1
APPLICATIONS
•
•
(1)
(2)
Microprocessor-based Electronic Equipment for Automotive Applications
Electric Vehicle (EV) Inverters and Charge Controllers
R5114Sxx1A, R5114Sxx2C only
Internally fixed
(3)
Adjustable using the WADJ pin
1
R5114x
No. EC-408-180523
SELECTION GUIDE
A set detection voltage, a package type, a WADJ function, a WDO pin and a RESETB/DOUT pin are user-
selectable options.
Selection Guide
Product Name
R5114Sxx1∗-E2-#E
R5114Sxx2∗-E2-#E
Package
HSOP-8E
HSOP-18
Quantity per Reel
1,000 pcs
1,000 pcs
Pb Free
Yes
Yes
Halogen Free
Yes
Yes
xx: Set Output Voltage (V
SET
) and Set Detection Voltage (-V
DSET
)
Assign a code starting from 01 to designate a desired combination of V
SET
and -V
DSET
.
Refer to
Product-specific Electrical Characteristics
for detailed information.
∗:
Other Functions
Package
WDT Type
∗
A
HSOP-8E
Timeout
B
HSOP-8E
Timeout
C
HSOP-18
Timeout
(1)
internally fixed
(2)
adjustable using the WADJ pin
#: Select the quality class
#
Operating Temp. Range
A
−40°C
to 125°C
K
−40°C
to 125°C
WADJ Function
Fixed
(1)
No
Adjustable
(2)
WDO Pin
No
No
Yes
RESETB/DOUT Pin
RESETB
RESETB
DOUT
Test Temp.
25°C, High
Low, 25°C, High
AEC-Q100
Grade 1
Grade 1
2
京公网安备 11010802033920号
EEWORLD
