- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383604 > MIC2186BQS (MICREL INC) Low Voltage PWM Control IC PDF資料下載
參數(shù)資料
| 型號： | MIC2186BQS |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low Voltage PWM Control IC |
| 中文描述： | SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | QSOP-16 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 162K |
| 代理商： | MIC2186BQS |
MIC2186
Pin Configuration
Micrel
MIC2186
2
July 2002
Pin Description
Pin Number
Pin Name
Pin Function
1
VINA
Input voltage to control circuitry (2.9V to 14V).
2
SKIP
SKIP (Input): Regulator operates in PWM mode (no pulse skipping) when
pin is pulled low, and skip mode when raised to Vdd. There is no automatic
switching between PWM and skip mode available on this device.
3
SS
Soft start reduces the inrush current and delays and slows the output voltage
rise time. A 5
μ
A current source will charge the capacitor up to Vdd.
4
COMP
Compensation (Output): Internal error amplifier output. Connect to a
capacitor or series RC network to compensate the regulator
’
s control loop.
5
SGND
Small signal ground: must be routed separately from other grounds to the (-)
terminal of Cout.
6
FB
Feedback Input - regulates FB to 1.245V.
7
EN/UVLO
Enable/Undervoltage Lockout (input): A low level on this pin will power down
the device, reducing the quiescent current to under 0.5
μ
A. This pin has two
separate thresholds, below 1.5V the output switching is disabled, and below
0.9V the device is forced into a complete micropower shutdown. The 1.5V
threshold functions as an accurate undervoltage lockout (UVLO) with 135mV
hysteresis.
8
VREF
The 1.245V reference is available on this pin. A 0.1
μ
F capacitor should be
connected form this pin to SGnd.
9
CSH
The (+) input to the current limit comparator. A built in offset of 100mV
between CSH and SGnd in conjunction with the current sense resistor sets
the current limit threshold level. This is also the (+) input to the current
amplifier.
10
VDD
3V internal linear-regulator output. Vdd is also the supply voltage bus for the
chip. Bypass to SGND with 1
μ
F. Maximum source current is 0.5mA.
11
SYNC
Frequency Synchronization (Input): Connect an external clock signal to
synchronize the oscillator. Leading edge of signal above 1.5V starts switch-
ing cycle. Connect to SGND if not used.
12
PGND
MOSFET driver power ground, connects to the bottom of the current sense
resistor and the (
–
) terminal of C
IN
.
High Duty Cycle. Sets duty cycle and frequency along with Freq/2. Logic
HIGH sets 85% maximum duty cycle. Logic LOW sets 50% maximum duty
cycle. See applications section for more information.
13
HIDC
14
OUTN
High current drive for N channel MOSFET. Voltage swing is from ground to
V
IN
. R
ON
is typically 1.6
.
Sets duty cycle and frequency along with HiDC. See applications section for
more information.
15
FREQ/2
16
VINP
Power input voltage to the gate drive circuitry (2.9V to 14V). This pin is
normally connected to the output voltage.
1
VINA
SKIP
SS
COMP
SGND
FB
EN/UVLO
VREF
16 VINP
FREQ/2
OUTN
HIDC
PGND
SYNC
VDD
CSH
15
14
13
12
11
10
9
2
3
4
5
6
7
8
16-pin Narrow Body SOP (M)
16-pin QSOP (QS)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC2186 | Low Voltage PWM Control IC |
| MIC2186BM | Low Voltage PWM Control IC |
| MIC2196YM | 400kHz SO-8 Boost Control IC |
| MIC2196 | 400kHz SO-8 Boost Control IC |
| MIC2196BM | 400kHz SO-8 Boost Control IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2186BQS TR | 功能描述:IC REG CTRLR BST FLYBK CM 16QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| MIC2186YM | 功能描述:DC/DC 開關(guān)控制器 SO-16 Low Vin Synchronous Buck PWM Control IC (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MIC2186YM TR | 功能描述:DC/DC 開關(guān)控制器 SO-16 Low Vin Synchronous Buck PWM Control IC (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MIC2186YQS | 功能描述:DC/DC 開關(guān)控制器 SO-16 Low Vin Synchronous Buck PWM Control IC (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MIC2186YQS TR | 功能描述:DC/DC 開關(guān)控制器 SO-16 Low Vin Synchronous Buck PWM Control IC (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
發(fā)布緊急采購，3分鐘左右您將得到回復。