Electrical Characteristics: 0ûC < TA < 70ûC; 0ûC < TJ < 125ûC; VOUT2 3.5V, 9V VCC1 14V, 9V VCC2 14V; 2.0V DAC Code
(VID4= VID3 = VID2 = VID1 = 0, VID0 = 1), CGATE(H) = CGATE(L) = CGATE = 3.3nF, COFF = 390pF; Unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
■ VI/O Switching Regulator Error Amplifier continued
Unity Gain Bandwidth
PSRR @ 1kHZ
CCOMP2 = 0.1µF
COMP2 = 0.1µF
20
70
KHz
dB
V
C
Reference Voltage
VFB2=COMP2
1.205
1.230
1.255
■ GATE
High Voltage at 100mA
Low Voltage at 100mA
Rise Time
Measure VCC2 ÐGATE
Measure GATE
1.2
1.0
40
40
50
2.1
1.5
80
V
V
1.6V < GATE < (VCC2 Ð 2.5V)
(VCC2 Ð 2.5V) > GATE > 1.6V
Resistance to PGnd
ns
ns
k½
Fall Time
80
GATE pull-down
20
115
■ VI/O Overcurrent Protection
OVC2 Comparator Offset Voltage 0V < VOUT2 ² 3.5V
Discharge Threshold Voltage
77
86
101
0.3
mV
V
0.2
-7.0
100
0.25
0.1
VOUT2 Bias Current
0.2V ² VOUT2 ² 3.5V
7.0
µA
µA
OVC2 Latch Discharge Current
800
2500
■ PWM Comparator 2
PWM Comparator Offset Voltage 0V ² VFFB2 ² 3.5V
0.99
-7.0
1.10
200
0.1
1.22
300
7.0
V
Transient Response
VFFB2 Bias Current
V
FFB2 = 0 to 3.5V
ns
µA
0.2V ² VFFB2 ² 3.5V
■ COFF2
Off-Time
1.0
1.6
550
25
2.3
µs
Charge Current
Discharge Current
VCOFF2 = 1.5V
µA
mA
VCOFF2 = 1.5V
■ General Electrical Specifications
VCC Monitor Start Threshold
All Outputs On
7.9
8.4
8.1
0.30
13
8.9
8.6
0.60
20
V
VCC Monitor Stop Threshold
All Outputs Off
7.6
V
Hysteresis
Start - Stop
0.15
V
VCC1 Supply Current
VCC2 Supply Current
No Load on GATE(L)
No Loads on GATE(H) and GATE
mA
mA
6
9
Note 1: Guaranteed by design, not 100% tested in production.
6
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
