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参数资料
| 型号： | L6997STR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO20 |
| 封装： | MO-153-AC, TSSOP-20 |
| 文件页数： | 12/30页 |
| 文件大小： | 546K |
| 代理商： | L6997STR |
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L6997S
2/30
Table 2. Absolute Maximum Ratings
Table 3. Thermal Data
Figure 3. Pin Connection (Top View)
Symbol
Parameter
Value
Unit
VCC
VCC to GND
-0.3 to 6
V
VDR
VDR to GND
-0.3 to 6
V
HGATE and BOOT, to PHASE
-0.3 to 6
V
HGATE and BOOT, to PGND
-0.3 to 42
V
VPHASE
PHASE
-0.3-to 36
V
LGATE to PGND
-0.3 to VDR+0.3
V
ILIM, VFB, VSENSE, NOSKIP, SHDN, PGOOD, OVP, VREF,
INT, GNDSENSE to GND
-0.3 to VCC+0.3
V
BOOT, HGATE
and PHASE
PINS
Maximum Withstanding Voltage Range
Test Condition:CDF-AEC-Q100-002 “Human Body Model”
Accepatance Criteria: “Normal Performance”
±750
V
OTHER PINS
±2000
V
Ptot
Power dissipation at Tamb = 25°C
1
W
Tstg
Storage temperature range
-40 to 150
°C
Symbol
Parameter
Value
Unit
Rth j-amb
Thermal Resistance Junction to Ambient
125
°C/W
Tj
Junction operating temperature range
-40 to 125
°C
Table 4. Pin Function
N°
Name
Description
1
NOSKIP
Connect to VCC to force continuous conduction mode and sink mode.
2
GNDSENSE
Remote ground sensing pin
3
INT
Integrator output. Short this pin to VFB pin and connect it via a capacitor to VOUT to insert the
integrator in the control loop. If the integrator is not used, short this pin to VREF.
4
VSENSE
This pin must be connected to the remote output voltage to detect overvoltage and
undervoltage conditions and to provide integrator feedback input.
GNDSENSE
INT
OVP
SHDN
ILIM
OSC
VCC
NOSKIP
PGOOD
LGATE
PGND
VDR
PHASE
HGATE
BOOT
1
3
2
4
5
6
7
8
9
18
17
16
15
14
13
19
20
10
SS
GND
11
12
VREF
VFB
TSSOP20
INT
VSENSE
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