参数资料
| 型号： | BD9011EKN-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 5/30页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM 36-HQFN |
| 标准包装： | 1 |
| PWM 型： | 控制器 |
| 输出数： | 2 |
| 频率 - 最大： | 550kHz |
| 电源电压： | 3.9 V ~ 30 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 36-TQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 产品目录页面： | 1372 (CN2011-ZH PDF) |
| 其它名称： | BD9011EKN-E2DKR |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
● Pin configuration
● Pin function table
BD9011KV （ VQFP48C ）
Pin
No.
1
2
3
4
Pin name
OUTH2
BOOT2
CL2
N.C
Function
High side FET gate drive pin 2
OUTH2 driver power pin
Over current detection pin 2
Non-connect (unused) pin
36
35
34
33
32
31
30
29
28
27
26
25
5
6
VCCCL2
N.C
Over current detection VCC2
Non-connect (unused) pin
7
VCC
Input power pin
SS2 37
COMP2 38
FB2 39
N.C 40
EXTVCC 41
N.C 42
N.C 43
VREG5 44
N.C 45
OUTL2 46
DGND2 47
SW2 48
24 DET1
23 SS1
22 COMP1
21 FB1
20 N.C
19 VREG33
18 N.C
17 VREG5A
16 N.C
15 OUTL1
14 DGND1
13 SW1
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
VCCCL1
N.C
CL1
BOOT1
OUTH1
SW1
DGND1
OUTL1
N.C
VREG5A
N.C
VREG33
N.C
FB1
COMP1
SS1
DET1
STB
EN1
EN2
Over current detection CC1
Non-connect (unused) pin
Over current detection setting pin 1
OUTH1 driver power pin
High side FET gate drive pin 1
High side FET source pin 1
Low side FET source pin 1
Low side FET gate drive pin 1
Non-connect (unused) pin
FET drive REG input
Non-connect (unused) pin
Reference input REG output
Non-connect (unused) pin
Error amp input 1
Error amp output 1
Soft start setting pin 1
FB detector output 1
Standby ON/OFF pin
Output 1 ON/OFF pin
Output 2 ON/OFF pin
1
2
3
4
5
6
7
8
9
10
11
12
28
N.C
Non-connect (unused) pin
29
30
31
32
GND
GNDS
LOFF
N.C
Ground
Sense ground
Over current protection OFF latch
function ON/OFF pin
Non-connect (unused) pin
Fig-15
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
RT
SYNC
LLM
DET2
SS2
COMP2
FB2
N.C
EXTVCC
N.C
N.C
VREG5
N.C
OUTL2
DGND2
SW2
Switching frequency setting pin
External synchronous pulse input pin
Built-in pull-down resistor pin
FB detector output 2
Soft start setting pin 2
Error amp output 2
Error amp input 2
Non-connect (unused) pin
External power input pin
Non-connect (unused) pin
Non-connect (unused) pin
FET drive REG output
Non-connect (unused) pin
Low side FET gate drive pin 2
Low side FET source pin 2
High side FET source pin 2
● Block functional descriptions
? Error amp
The error amp compares output feedback voltage to the 0.8V reference voltage and provides the comparison result as COMP voltage, which is
used to determine the switching Duty. COMP voltage is limited to the SS voltage, since soft start at power up is based on SS pin voltage.
? Oscillator (OSC)
Oscillation frequency is determined by the switching frequency pin (RT) in this block. The frequency can be set between 250kHz and 550kHz.
? SLOPE
The SLOPE block uses the clock produced by the oscillator to generate a triangular wave, and sends the wave to the PWM comparator.
? PWM COMP
The PWM comparator determines switching Duty by comparing the COMP voltage, output from the error amp, with the triangular wave from the
SLOPE block. Switching duty is limited to a percentage of the internal maximum duty, and thus cannot be 100% of the maximum.
? Reference voltage (5Vreg ， 33Vreg)
This block generates the internal reference voltages: 5V and 3.3V.
? External synchronization (SYNC)
Determines the switching frequency, based on the external pulse applied.
? Over current protection (OCP)
Over current protection is activated when the VCCCL-CL voltage reaches or exceeds 90mV. When over current protection is active, Duty is low,
and output voltage also decreases. When LOFF=L, the output voltage has fallen to 70% or below and output is latched OFF. The OFF latch
mode ends when the latch is set to STB, EN.
? Sequence control (Sequence DET)
Compares FB voltage with reference voltage (0.56V) and outputs the result as DET.
? Protection circuits (UVLO/TSD)
The UVLO lock out function is activated when VREG falls to about 2.8V, while TSD turns outputs OFF when the chip temperature reaches or
exceeds 150 ℃ . Output is restored when temperature falls back below the threshold value.
5/29
相关PDF资料 |
PDF描述 |
|---|---|
| HBC36DRTH-S13 | CONN EDGECARD 72POS .100 EXTEND |
| RBB60DHFD | CONN EDGECARD 120POS .050 SMD |
| LTC3803ES6#TRMPBF | IC REG CTRLR FLYBK PWM TSOT23-6 |
| RSC35DRXS | CONN EDGECARD 70POS DIP .100 SLD |
| HBC30DRYN | CONN EDGECARD 60POS DIP .100 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| BD9011KV | 制造商:ROHM 制造商全称:Rohm 功能描述:Dual Synchronous DC/DC converter controller |
| BD9011KV-E2 | 功能描述:DC/DC 开关控制器 Step Down; 2 Outputs RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| BD9012KV | 制造商:ROHM 制造商全称:Rohm 功能描述:Dual-output, high voltage, high-efficiency step-down switching controller |
| BD9012KV-E2 | 功能描述:开关变换器、稳压器与控制器 Step Down; 2 Outputs RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| BD9013KV-E2 | 功能描述:DC/DC 开关控制器 Step Down; 2 Outputs RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
发布紧急采购，3分钟左右您将得到回复。