L6925 查看數據表（PDF） - STMicroelectronics
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L6925 Datasheet PDF : 6 Pages
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L6925D
Table 2. Absolute Maximum Ratings
Symbol
V6
V5
V1, V8
V3
V2
V7
Ptot
Tj
Tstg
LX Pin
Other pins
Parameter
Input voltage
Output switching voltage
Low Battery Input, Low Battery Output
Feedback voltage
Error Amplifier Output Voltage
Syncronization / Mode Selector
Power dissipation at Tamb=70°C
Junction operating temperature range
Storage temperature range
Maximum Withstanding Voltage Range Test Condition: CDF-
AEC-Q100-002- “Human Body Model” Acceptance Criteria:
“Normal Performance’
Figure 3. Pin Connection
Value
-0.3 to 6
-1 to VCC
-0.3 to VCC
-0.3 to VCC
-0.3 to VCC
-0.3 to VCC
0.45
-40 to 150
-65 to 150
±1000
±2000
Unit
V
V
V
V
V
V
W
°C
°C
V
V
LBI
COMP
VFB
GND
1
8
2
7
3
6
4
5
D01IN1239A/mod
LBO
SYNC
VCC
LX
Table 3. Thermal Data
Symbol
Parameter
Rth j-amb Thermal Resistance Junction to Ambient
Value
180
Unit
°C/W
Table 4. Pin Functions
N
Name
Description
1
LBI
Battery low voltage detector input. The internal threshold is set to 0.6V. The external threshold
can be adjusted by using an external resistor divider.
2
COMP Error amplifier output. Compensate it with a 220pF capacitor
3
VFB
Error amplifier input. The output voltage can be adjusted by using an external resistor divider
connected to this pin (VFB = 0.6V).
4
GND Ground.
5
LX
Switch node connection to the inductor.
6
VCC Input voltage.
7
SYNC This pin allows to select Low Noise/ Low Consumption Mode or to sychronize the device.
8
LBO
Battery low voltage detector output. If the voltage at the LBI pin drops below the internal
thrshold, LBO goes low. The LBO is an open drain output. A pull_up resistor should be
connected between the pin and the output voltage
2/6
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