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參數(shù)資料
| 型號： | CS51411GDR8 |
| 英文描述： | SMPS Controller |
| 中文描述： | 開關(guān)電源控制器 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 489K |
| 代理商： | CS51411GDR8 |
CS51411, CS51412, CS51413, CS51414
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (continued) (–40
°C < TJ < 125°C (CS51411E/2E/3E/4E); –40°C < TA < 85°C (CS51411E/2E/3E/4E);
0
°C < TA < 70°C (CS51411G/2G/3G/4G), 4.5 V< VIN < 40 V; unless otherwise specified.)
Characteristic
Unit
Max
Typ
Min
Test Conditions
Sync
Sync Frequency Range
CS51411/CS51412
305
–
470
kHz
Sync Frequency Range
CS51413/CS51414
575
–
880
kHz
Sync Pin Bias Current
VSYNC = 0 V
VSYNC = 5.0 V
–
250
0.1
360
0.2
460
A
Sync Threshold Voltage
–
1.0
1.5
1.9
V
Shutdown
Shutdown Threshold Voltage
–
1.0
1.3
1.6
V
Shutdown Pin Bias Current
VSHDNB = 0 V
0.14
5.00
35
A
Thermal Shutdown
Overtemperature Trip Point
Note 3
175
185
195
°C
Thermal Shutdown Hysteresis
Note 3
–
42
–
°C
General
Quiescent Current
ISW = 0 A
3.0
4.0
6.25
mA
Shutdown Quiescent Current
VSHDNB = 0 V
8.0
20
85
A
Boost Operating Current
VBOOST – VSW = 2.5 V
6.0
15
40
mA/A
Minimum Boost Voltage
Note 3
–
2.5
V
Start up Voltage
–
2.2
3.3
4.4
V
Minimum Output Current
–
7.0
12
mA
3. Guaranteed by design, not 100% tested in production.
PACKAGE PIN DESCRIPTION
PACKAGE PIN #
PIN SYMBOL
FUNCTION
1
BOOST
The BOOST pin provides additional drive voltage to the on–chip NPN power transistor.
The resulting decrease in switch on voltage increases efficiency.
2
VIN
This pin is the main power input to the IC.
3
VSW
This is the connection to the emitter of the on–chip NPN power transistor and serves
as the switch output to the inductor. This pin may be subjected to negative voltages
during switch off–time. A catch diode is required to clamp the pin voltage in normal
operation. This node can stand –1.0 V for less than 50 ns during switch node flyback.
4 (CS51412/CS51414)
BIAS
The BIAS pin connects to the on–chip power rail and allows the IC to run most of its
internal circuitry from the regulated output or another low voltage supply to improve
efficiency. The BIAS pin is left floating if this feature is not used.
5 (CS51411/CS51413)
SYNC
This pin provides the synchronization input.
5 (CS51412/CS51414)
4 (CS51411/CS51413)
SHDNB
The shutdown pin is active low and TTL compatible. The IC goes into sleep mode,
drawing less than 85
A when the pin voltage is pulled below 1.0 V. This pin should be
left floating in normal position.
6
GND
Power return connection for the IC.
7
VFB
The FB pin provides input to the inverting input of the error amplifier. If VFB is lower
than 0.29 V, the oscillator frequency is divided by four, and current limit folds back to
about 1 ampere. These features protect the IC under severe overcurrent or short
circuit conditions.
8
VC
The VC pin provides a connection point to the output of the error amplifier and input to
the PWM comparator. Driving of this pin should be avoided because on–chip test
circuitry becomes active whenever current exceeding 0.5 mA is forced into the IC.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS51411GDR8G | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.5A Low Voltage Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| CS51411GMNR2G | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 BUCK REGULATOR RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| CS51412ED8 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.5A Low Voltage RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| CS51412ED8G | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.5A Low Voltage Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| CS51412EDR8 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.5A Low Voltage RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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