CS5124XDR8 Ver la hoja de datos (PDF) - ON Semiconductor
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CS5124XDR8 Datasheet PDF : 12 Pages
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CS5124, CS5126
ELECTRICAL CHARACTERISTICS (–40°C ≤ TJ ≤ 125°C; –40°C ≤ TA ≤ 105°C, 7.60 V ≤ VCC ≤ 20 V, UVLO = 3.0 V,
ISENSE = 0 V, CV(CC) = 0.33 µF, CGATE = 1.0 nF (ESR = 10 Ω); CSS = 470 pF; CV(FB) = 100 pF, unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
General
ICC Operating – VGATE not switching
–
ICC at VCC Low
VCC = 6.0 V
ICC Sleep
VUVL = 1.0 V
Low VCC Lockout
VCC Turn–on Threshold Voltage
–
VCC Turn–off Threshold Voltage
–
VCC Hysteresis
–
UVLO
–
10
13
–
500
750
–
210
275
7.2
7.7
8.3
6.8
7.3
7.8
350
425
500
Sleep Threshold Voltage
UVLO decreasing
1.5
1.8
2.3
Sleep Threshold Voltage
UVLO increasing
–
1.88
2.45
Sleep Hysteresis
–
35
85
150
UVLO Turn–off Threshold Voltage
Note 2
2.3
2.45
2.6
UVLO Turn–on Threshold Voltage
Note 2
2.50
2.63
2.76
UVLO Hysteresis
UVLO Hysteresis
UVLO Input Bias Current
Turn–on – Turn–off (–40°C ≤ TJ ≤ 100°C) Note 2
170
185
200
Turn–on – Turn–off (100°C ≤ TJ ≤ 125°C) Note 2
50
185
400
–
–1.0
–
1.0
UVLO Clamp
With UVLO sinking 1.0 mA
5.0
7.5
12
VCC Clamp and BIAS Pin
VCC Clamp Voltage
CS5124 Only. Connect an NFET as follows: BIAS = G, VCC = S, VIN = D.
36 V ≤ VIN ≤ 60 V, 200 nF ≤ CSS ≤ 500 nF,
R = 500 k
7.275
7.9
8.625
BIAS Minimum Voltage
BIAS Clamp
Measure Voltage on BIAS with:
1.6
2.8
4.0
10 V ≤ VCC ≤ 20 V & 50 µA ≤ IBIAS ≤ 1.0 mA
With BIAS pin sinking 1.0 mA
12
15
20
200 kHz Oscillator
CS5126 Only
Operating Frequency
–
175
200
225
Max Duty Cycle Clamp
–
78
82.5
85
Slope Compensation
(Normal operation)
–
12
18
23
Slope Compensation
(Synchronized operation)
Note 2
7.0
12
16
SYNC Input Threshold Voltage
–
1.0
2.0
3.0
SYNC Input Impedance
Measured with SYNC = 1.0 V & 10 V
50
120
230
400 kHz Oscillator
CS5124 Only
Operating Frequency
–
360
400
440
Max Duty Cycle Clamp
–
80.0
82.5
85.0
Slope Compensation
–
15
21
26
2. Not tested in production. Specification is guaranteed by design.
Unit
mA
µA
µA
V
V
mV
V
V
mV
V
V
mV
mV
µA
V
V
V
V
kHz
%
mV/µs
mV/µs
V
kΩ
kHz
%
mV/µs
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