Absolute Maximum Ratings
Power Supply Voltage, VCC..........................................................................................................................................................5V
Driver Supply Voltage, VC..........................................................................................................................................................20V
Driver Output Voltage, VGATE ...................................................................................................................................................20V
COSC, CS, VFB (Logic Pins) ............................................................................................................................................................5V
Peak Output Current................................................................................................................................................................. 1.0A
Steady State Output Current ................................................................................................................................................200mA
Operating Junction Temperature, TJ..................................................................................................................................... 150°C
Storage Temperature Range, TS...................................................................................................................................-65 to 150°C
ESD (Human Body Model).........................................................................................................................................................2kV
Lead Temperature Soldering
Wave Solder (through hole styles only) .....................................................................................10 sec. max, 260°C peak
Reflow (SMD styles only) ......................................................................................60 sec. max above 183°C, 230°C peak
Electrical Characteristics: Specifications apply for 3.135 ≤ VCC ≤ 3.465V, 3V ≤ VC ≤ 16V,
-40°C ≤ TA ≤ 125°C, -40°C ≤ TJ ≤ 125°C, unless otherwise specified.
PARAMETER
ꢀ Oscillator
TEST CONDITIONS
VFB = 1.2V
OSC = 470pF
1.4V < VCOSC < 2V
2.7V > VCOSC > 2V
MIN
TYP
MAX
UNIT
Frequency
C
160
200
240
kHz
µA
µA
%
Charge Current
Discharge Current
Maximum Duty Cycle
110
660
83.3
1 – (tOFF/tON
)
80.0
ꢀ Short Circuit Timer
Charge Current
VFB = 1.0V; CS = 0.1µF; VCOSC = 2V
1V < VCS < 2V
2.55V > VCS > 2.4V
175
40
4
0.70
0.2
9
264
66
6
0.85
0.3
15
325
80
10
1.40
0.45
23
µA
µA
µA
ms
ms
ms
%
Fast Discharge Current
Slow Discharge Current
Start Fault Inhibit Time
Valid Fault Time
GATE Inhibit Time
Duty Cycle
2.4V > VCS > 1.5V
2.6V > VCS > 2.4V
2.4V > VCS > 1.5V
2.5
3.1
4.6
ꢀ CS Comparator
Fault Enable CS Voltage
Max. CS Voltage
VFB = 1V
2.5
2.6
2.4
1.5
0.7
0.866
V
V
V
V
V
V
V
FB = 1.5V
Fault Detect Voltage
Fault Inhibit Voltage
Hold Off Release Voltage
Regulator Threshold
Voltage Clamp
VCS when GATE goes high
Minimum VCS
VFB = 0V
0.4
0.725
1.0
1.035
VCS = 1.5V
ꢀ VFB Comparator
VCOSC = VCS = 2V
Regulator Threshold Voltage TJ = 25°C (Note 1)
TJ = -40 to 125°C
1.225
1.210
1.250
1.250
1.275
1.290
V
V
Fault Threshold Voltage
TJ = 25°C (Note 1)
TJ = -40 to 125°C
1.12
1.10
1.15
1.15
1.17
1.19
V
V
Threshold Line Regulation
Input Bias Current
3.135V ≤ VCC ≤ 3.465
VFB = 0V
6
1
15
4
mV
µA
Voltage Tracking
(Regulator Threshold Voltage -
Fault Threshold Voltage)
70
100
120
mV
Input Hysteresis Voltage
4
20
mV
2
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
