be careful:
1. If OVLO is grounded, OVP is the default value of 6.1V.
2. R2 is recommended to use 100K, and R1 can be calculated using the following formula: VIN_ OVP=VOVLO_ TH x(1+R1/R2),VOVLO_ TH Please refer to electrical characteristics, typical value is 1.20V.
3. It is recommended to use high-precision resistors for R1 and R2. R2 should be wired separately to the GND of the chip, rather than the ground pin of the input capacitor.
The characteristics of HP2628 are as follows:
Wide input voltage range:3V~60V
Maximum continuous load current:3A
Maximum peak load current:5A
Extremely low conduction impedance: 40m Ω (typical value)
Internal default fixed OVP threshold: 6.1V (typical value)
Externally programmable OVP range: 4V~24V
OVP response time: 50ns (typical value)
Startup and OVP recovery delay: 18ms
Over temperature protection and automatic recovery function
Equipped with enabling control function
Input abnormal status indication function