HA16116FP Datasheet, PDF (25/34 Pages) Hitachi Semiconductor – Switching Regulator for Chopper Type DC/DC Converter

HA16116FP/FPJ, HA16121FP/FPJ
Characteristic Curves
• Reference Voltage Block (Vref)
Reference Voltage vs. Power Supply Input Voltage
3
Ta = 25°C
R_A = 390 kΩ
2.5 V
(Between the V_IN
and ON/OFF pins)
2
UVL release: 3.6 V
UVL operate: 3.3 V
1
3.3 3.6 4.3
0
1
2
3
4
5
40
Power supply input voltage V_IN (V)
Vref Temperature Characteristics
2.54
2.52
V_IN = 12 V
I_O (Vref ) = 1 mA
2.50
2.48
2.46
−20
85
0
20 40 60 80 100
Ambient temperature Ta (°C)
Vref Load Regulation
3.0
2.5
2.0
1.50
0
Short
circuit
current
10
20
30
Output current I_{O sink} (mA)
• UVL (Low Input Voltage Malfunction Prevention) Block
Hysteresis Voltage Temperature Characteristics
4.5
High threshold voltage
4.0
3.5
Hysteresis
3.0
Low threshold voltage
2.5
−20 0
20 40 60 80 100
Ambient temperature Ta (°C)
25