RT7205A
Parameter
Internal Bias
V5 Bias
V5 Load Regulation
V5 Output Short Circuit Current I
V5_SC
V2 Bias
V2 Load Regulation
V2 Output Short Circuit Current I
V2_SC
Regulator Section
Internal Resistor between VFB
and VDD
Internal Resistor between VFB
and GND
R
FB1
R
FB2
(R
FB1
+ R
FB2
) / R
FB2
For RT7205A
(R
FB1
+ R
FB2
) / R
FB2
For RT7205AL
For RT7205A
For RT7205AL
0
V
REF_CC_ST
1
V
REF_CV_MAX
V
REF_CC_MAX
V
ADC_MAX
With 10-bit Digital to Analog
Converter
With 10-bit Digital to Analog
Converter
10-bit A/D conversion
∆V
OPTO
= 16.5V to V
REF
(Note 5)
(Note 5)
OPTO pin is open-circuited
(Note 5)
V
OPTO
= V
REF
, I
OPTO
=
1mA, f < 1kHz (Note 5)
I
OPTO_SINK
= 20mA
0.99
2.67
2.67
2.67
−2.4
--
--
--
--
2
40.8
50
1.1
2.70
2.70
2.70
−1.2
0.1
230
0.22
--
--
51
60
1.21
2.73
2.73
2.73
--
--
500
0.5
200
20
61.2
70
V
V
V
mV/V
µA
nA
Ω
Ω
mA
kΩ
kΩ
For RT7205A
For RT7205AL
64
24
16
4.95
2.475
0.97
1.94
0.72
80
30
20
5
2.5
1
2
0.8
96
36
24
5.05
--
2.525
1.03
2.06
0.88
V
V
kΩ
kΩ
V
BIAS_V2
3V < V
DD
< 16.5V
1mA < I
BIAS_V2
< 20mA
V
BIAS_V5
6V < V
DD
< 16.5V
1mA < I
BIAS_V5
< 30mA
4.75
--
60
1.71
--
30
5
--
90
1.8
--
50
5.25
150
120
1.89
20
70
V
mV
mA
V
mV
mA
Symbol
Conditions
Min
Typ
Max
Unit
V
OUT
Scaling Factor
K
VOUT
Default Reference Voltage for
V
REF_CV_ST
CV Regulators
Register -Programmable
Default Reference Voltage for
CC Regulators
Maximum DAC Output Voltage
for CV Regulators
Maximum DAC Output Voltage
for CC Regulators
Maximum ADC Sense Voltage
Ratio of Change in Reference
Input Voltage to Change in
OPTO Voltage
Reference Input Current
Off-State OPTO Current
Dynamic Impedance
OPTO Turn-On Impedance
Maximum OPTO Sinking
Current
Internal Resistor between
OPTO and VDD
Internal Resistor between
OPTO and GND
∆
V
REF
∆
V
OPTO
I
REF
I
OPTO_OFF
|Z
OPTO
|
R
ON_OPTO
I
OPTO_MAX
R
OPTO_VDD
R
OPTO_GND
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7205A-00
February 2018
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
