VIPER100A Datasheet, PDF (6/31 Pages) STMicroelectronics – SMPS PRIMARY I.C.

1 Electrical Data
Table 5. Error Amplifier Section
Symbol
Parameter
Test Conditions‘
V_DDREG V_DD Regulation Point
I_COMP=0mA (see Figure 5)
∆V_DDreg Total Variation
T_j=0 to 100°C
G_BW
Unity Gain Bandwidth
From Input =V_DD to
Output = V_COMP
COMP pin is open
(see Figure 15)
A_VOL
Open Loop Voltage Gain
COMP pin is open
(see Figure 15)
G_m
DC Transconductance
V_COMP=2.5V(see Figure 5)
V_COMPLO Output Low Level
I_COMP=-400µA; V_DD=14V
V_COMPHI Output High Level
I_COMP=400µA; V_DD=12V
I_COMPLO Output Low Current Capability V_COMP=2.5V; V_DD=14V
I_COMPHI
Output High Current
Capability
V_COMP=2.5V; V_DD=12V
Table 6. PWM Comparator Section
Symbol
Parameter
Test Conditions‘
H_ID
∆V_COMP / ∆I_DPEAK
V_COMP = 1 to 3 V
V_COMPoff V_COMP Offset
I_DPEAK = 10mA
I_Dpeak Peak Current Limitation
V_DD = 12V; COMP pin open
t_d
Current Sense Delay to Turn- I_D = 1A
Off
t_b
Blanking Time
t_on(min) Minimum On Time
Table 7. Shutdown and Overtemperature Section
Symbol
Parameter
Test Conditions‘
V_COMPth Restart Threshold
(see Figure 8)
t_DISsu Disable Set Up Time
(see Figure 8)
T_tsd Thermal Shutdown
Temperature
(see Figure 8)
T_hyst Thermal Shutdown Hysteresis (see Figure 8)
VIPer100A-E/ASP-E
Min
Typ
Max Unit
12.6
13
13.4
V
2
%
150
KHz
45
52
dB
1.1
1.5
1.9 mA/V
0.2
V
4.5
V
-600
µA
600
µA
Min
Typ
Max Unit
0.7
1
1.3
V/A
0.5
V
3
4
5.3
A
250
ns
250
360
ns
350 1200
ns
Min
Typ
Max Unit
0.5
V
1.7
5
µs
140
170
°C
40
°C
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