cs51031 ON Semiconductor, cs51031 Datasheet - Page 3

• Manufacturer Part Number: cs51031
• Description: Hysteretic Pfet Buck Controller
• Manufacturer: ON Semiconductor

3. Guaranteed by design, not 100% tested in production.
ELECTRICAL CHARACTERISTICS
Industrial Grade: −40°C < T
Oscillator
Short Circuit Timer
CS Comparator
V
Power Stage
V
Current Drain
Frequency
Charge Current
Discharge Current
Maximum Duty Cycle
Charge Current
Fast Discharge Current
Slow Discharge Current
Start Fault Inhibit Time
Valid Fault Time
GATE Inhibit Time
Fault Duty Cycle
Fault Enable CS Voltage
Max CS Voltage
Fault Detect Voltage
Fault Inhibit Voltage
Hold Off Release Voltage
Regulator Threshold Voltage Clamp
Regulator Threshold Voltage
Fault Threshold Voltage
Threshold Line Regulation
Input Bias Current
Voltage Tracking
Input Hysteresis Voltage
GATE DC Low Saturation Voltage
GATE DC High Saturation Voltage
Rise Time
Fall Time
Turn−On Threshold
Turn−Off Threshold
Hysteresis
I
I
Shutdown I
FB
CC
CC
C
Comparators
Monitor
Characteristic
CC
A
< 85°C; −40°C < T
V
V
V
V
V
(Specifications apply for 4.5 ≤ V
C
1.4 V < V
2.7 V > V
1 − (t
1.0 V < V
2.55 V > V
2.4 V > V
0 V < V
2.6 V > V
2.4 V > V
V
V
Minimum V
V
V
T
T
T
T
4.5 V ≤ V
V
(Regulator Threshold − Fault Threshold Voltage)
V
V
C
C
4.5 V < V
3.0 V < V
V
FB
FB
FB
COSC
CC
J
J
J
J
OSC
FB
CS
FB
CS
FB
COSC
COSC
GATE
GATE
CC
= 25°C (Note 3)
= −40 to 125°C
= 25°C (Note 3)
= −40 to 125°C
= 1.2 V
= 1.0 V; CS = 0.1 mF; V
= 1.0 V
= V
J
= 1.5 V
= 0 V
= 0 V
when GATE goes high
= 1.5 V
= 4.0
OFF
< 125°C: Commercial Grade: 0°C < T
= 470 pF
= V
= 1.0 nF; 1.5 V < V
= 1.0 nF; 9.0 V > V
C
= 1.0 V; 200 mA Sink
= 2.7 V; 200 mA Source; V
CS
/t
COSC
CS
= 10 V; V
COSC
CS
CS
CS
CC
CC
C
ON
CS
CS
< 2.5 V
CS
< 16 V, Gate non−switching
)
< 2.0 V
> 1.5 V
> 2.4 V
> 1.5 V
≤ 16 V
< 16 V, Gate switching
= 2.0 V
> 2.4 V
> 2.0 V
< 2.0 V
Test Conditions
http://onsemi.com
FB
= 1.2 V
CS51031
−
−
−
−
−
−
GATE
GATE
3
COSC
< 9.0 V
> 1.5 V
CC
= 2.0 V
C
≤ 16 V, 3.0 V ≤ V
= V
GATE
A
< 70°C; 0°C < T
C
≤ 16 V;
0.725
1.225
1.210
4.200
4.085
80.0
0.70
1.12
1.10
Min
160
175
4.0
0.2
9.0
2.5
0.4
40
70
65
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
J
< 125°C, unless otherwise specified.)
0.866
1.250
1.250
4.400
4.300
83.3
0.85
1.15
1.15
Typ
200
110
660
264
100
130
500
6.0
0.3
3.1
2.5
2.6
2.4
1.5
0.7
6.0
1.0
4.0
1.2
1.5
4.5
2.7
66
15
25
25
1.035
1.275
1.290
4.600
4.515
Max
1.40
0.45
1.17
1.19
240
325
120
200
900
4.6
1.0
4.0
1.5
2.1
6.0
4.0
80
10
23
15
20
60
60
−
−
−
−
−
−
−
Unit
kHz
mV
mV
mV
mV
mA
mA
ms
ms
ms
mA
mA
mA
mA
mA
mA
mA
ns
ns
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V