Electrical Characteristics: TJ = -40¡C to 125¡C, VSS = 9 to 16V, V5REF ILOAD = 2mA, SYNCOUT Free Running, unless other-
wise specified. For All Specs: UVSD=6V, OVSD = 0V, ENABLE = 0V, ILIM(1,2) = 0,VFB(1,2) = 3V,RFADJ = RDLYSET = 27.4k½.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
■ Bias Supply Error Amplifier: continued
Output Low Sink Current
VSS > 12.6V. Measure OAOUT sink
current when OAOUT = 2.5V.
3.0
20.0
50.0
mA
VSS Set Point
Adjust VSS until OAOUT goes low.
11.60
15.00
12.25
12.80
V
V/mV
MHz
V
Large Signal Gain
(GBD)
(GBD)
(GBD)
Unity Gain Bandwidth
Common Mode Input Range
1.00
1.00
2.00
■ VSS Voltage
VSS Reset Voltage
Toggle ENABLE between Gnd & VCC
then adjust VSS from 2.0V-0.8V until
OAOUT goes high.
,
1.00
1.40
1.80
V
■ Undervoltage Lockout
UVSD Turn On
Adjust UVSD from 4.7V-5.3V
until GATE 1, 2 goes high.
4.80
4.45
0.20
5.00
4.70
5.10
4.95
V
V
Threshold Voltage
UVSD Turn Off Threshold
Voltage
Adjust UVSD from 5.1V-4.3V
until GATE 1, 2 goes low.
Hysteresis
Turnon - Turnoff
0.27
0.20
0.40
0.50
V
UVSD Input Bias Current
Set UVSD=0V. Measure Current
out of UVSD lead.
µA
■ Overvoltage Lockout
OVSD Threshold Voltage
Adjust OVSD from 4.7V-5.3V
until GATE 1, 2 goes low.
4.85
5.00
0.20
5.15
0.50
V
OVSD Input Bias Current
Set OVSD=0V. Measure Current out
of OVSD lead.
µA
■ ENABLE & PROGRAM
ENABLE Lead Output Current Measure current out of
ENABLE when ENABLE = 0V.
Measure current out of
100.0
20.0
1.20
266.0
60.0
1.40
500.0
100.0
1.60
µA
µA
V
PROGRAM Lead Output
Current
PROGRAM when PROGRAM = 0V.
PROGRAM Threshold
Voltage
ENABLE = Gnd. Adjust
PROGRAM from 1.0V - 1.8V
until GATE 1, 2 goes high.
ENABLE Threshold Voltage
PROGRAM = Gnd.
Adjust ENABLE from 1.0V - 1.8V
until GATE 1, 2 goes high.
1.20
1.40
1.60
V
■ Output Undervoltage Delay
OUVDELAY Charging
Current
Set OUVDELAY = 1V, VFB1 = 4.4V
7.50
4.80
10.00
5.00
12.50
5.20
µA
V
Measure OUVDELAY ICHARGE
.
OUVDELAY Latchoff Voltage
Toggle ENABLE between Gnd & VCC
,
then adjust OUVDELAY from
4.7V - 5.3V until GATE 1, 2, goes low.
OUVDELAY Set Current
VFB1 Charge Threshold
OUVDELAY = VOCLO + 50mV
Measure current into OUVDELAY.
0.50
4.22
1.00
4.40
mA
V
VSS=1V. Toggle ENABLE between
Gnd & VCC, adjust VFB1 from 3.8V - 4.6V
until GATE 1, 2 goes low.
4.05
3.90
VFB2 Charge Threshold
VSS = 1V. Toggle ENABLE between
Gnd & VCC, adjust VFB2 from 3.8V - 4.6V
until GATE 1, 2 goes low.
4.15
4.35
V
4
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
