SG1846
ELECTRICAL CHARACTERISTICS
(continued)
Parameter
Under-Voltage Lockout Section
Start-Up Threshold
Threshold Hysteresis
Total Standby Current
Supply Current
Note 4. These parameters although guaranteed over the recommended
operating conditions, are not tested in production.
Note 5. Parameter measured at trip point of latch with V
PIN 5
= V
REF
,
V
PIN 6
= 0V.
∆
V
PIN 7
Note 6. Amplifier gain defined as : G =
; V
PIN 4
= 0V to 1.0V
∆
V
PIN 4
Test Conditions
SG1846
SG3846
SG2846
Units
Min. Typ. Max. Min. Typ. Max.
7.7
0.75
17
8.0
7.7
0.75
17
8.0
V
V
mA
21
21
Note 7. Current into Pin 1 guaranteed to latch circuit in shutdown state.
Note 8. Current into Pin 1 guaranteed not to latch circuit in shutdown
state.
Note 9. R
T
= 10KΩ, C
T
= 4.7nF
CHARACTERISTIC CURVES
FIGURE 1.
REFERENCE VOLTAGE VS. TEMPERATURE
FIGURE 2.
V
REF
SHORT CIRCUIT CURRENT VS. TEMPERATURE
FIGURE 3.
CURRENT SENSE THRESHOLD
VS. ERROR AMPLIFIER OUTPUT
FIGURE 4.
CURRENT SENSE GAIN VS. TEMPERATURE
FIGURE 5.
OSCILLATOR VALLEY VOLTAGE VS. TEMPERATURE
FIGURE 6.
OSCILLATOR PEAK VOLTAGE VS. TEMPERATURE
4/90 Rev 1.1 2/94
Copyright
©
1994
4
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INFINITY
Microelectronics Inc.
MICROSEMI [ MICROSEMI CORPORATION ]
