BD3004HFP-TR Rohm Semiconductor, BD3004HFP-TR Datasheet - Page 4

• Manufacturer Part Number: BD3004HFP-TR
• Description: IC REG WATCHDOG TIMER HRP7
• Manufacturer: Rohm Semiconductor

Specifications of BD3004HFP-TR

• Function: Current Regulator
• Accuracy: ±2%
• Voltage - Input: 5.5 ~ 36 V
• Current - Output: 500mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: HRP-7
• Threshold Voltage: 4.1V
• No. Of Supervisors / Monitors: 1
• Supply Voltage Range: 5.5V To 36V
• Supply Current: 80µA
• Digital Ic Case Style: HRP
• No. Of Pins: 7
• Operating Temperature Range: -40°C To +125°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensing Method: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Block diagram
Pin descriptions
I/O Circuit diagram
CLK
Pin. No
OUT
FIN
Signal from
microcontroller
1
2
3
4
5
6
7
OUT
（BD3004HFP）
（BD3005HFP）
Vcc
100K Ω
INH(BD3005HFP)
GND
CLK
Vcc
Cin
Vs(BD3004HFP)
INH
OUT (5 pin)
CLK (1 pin)
Vs
3
2
2
1
4
Pin name
FIN
RESET
Pre Reg
GND
GND
OUT
CLK
Vcc
CT
Vcc
TSD
OCP
Rb
Ra
Reverse Polarity Protection
Vref
PREREG
Clock input from microcontroller
Reset
WDT on/off function pin (WDT off when INH = high; WDT on when INH = low)
Power supply pin
GND pin
Voltage output pin
Reset output pin
Reset output delay time, WDT monitor time setting external capacitance connection pin
GND pin
OUT
detection voltage
RESET
WDT
OUT
Vs
Vcc
RESET (6 pin)
OUT
100K Ω
Fig.14
Fig.13
4/8
Vs(2 pin)
5
6
7
adjustment function pin
CT
OUT
RESET
470K Ω
3.56M Ω
1.56M Ω
CT
Co
PREREG
OUT
Function
Cin: 0.33 µF to 1000 µF
Co: 0.1 µF to 1000 µF
CT: 0.001 µF to 22 µF
INH
* All resistance values are typical ones.
1 2 3 4 5 6 7
CT
Vcc
HRP7
FIN
OUT
100K Ω
INH (2 pin)
CT (7 pin)
OUT
PREREG