参数资料
| 型号： | MIC2196YM |
| 厂商： | Micrel Inc |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST FLYBK PWM 8SOIC |
| 标准包装： | 95 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 440kHz |
| 占空比： | 85% |
| 电源电压： | 2.9 V ~ 14 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 产品目录页面： | 1092 (CN2011-ZH PDF) |
| 其它名称： | 576-1717-5 MIC2196YM-ND |
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) .......................................................15V
Digital Supply Voltage (V DD ).............................................7V
Comp Pin Voltage (V COMP ) .............................. –0.3V to +3V
Feedback Pin Voltage (V FB ) ............................ –0.3V to +3V
Enable Pin Voltage (V EN/UVLO ) ....................... –0.3V to +15V
Current Sense Voltage (V CS )........................... –0.3V to +1V
Power Dissipation (P D ) ....................... 285mW @ T A = 85°C
Ambient Storage Temperature (T s ) ........... –65°C to +150°C
ESD Rating (3) .................................................................. 2kV
MIC2196
Operating Ratings (2)
Supply Voltage (V IN )...................................... +2.9V to +14V
Junction Temperature .........................–40°C ≤ T J ≤ +125°C
Package Thermal Resistance
SOIC-8 ( θ JA ).....................................................140°C/W
Electrical Characteristics
V IN = 5V; V OUT = 12V; T A = 25°C. Bold values indicate –40°C ≤ T J ≤ +125°C, unless noted.
Parameter
Condition
Min
Typ
Max
Units
Regulation
Feedback Voltage Reference
(±1%)
(±2%)
1.233
1.220
1.245
1.245
1.258
1.270
V
V
Feedback Bias Current
50
nA
Output Voltage Line Regulation
Output Voltage Load Regulation
3V ≤ V IN ≤ 9V
0mV ≤ V CS ≤ 75mV
+0.08
-1.2
%/V
%
Output Voltage Total Regulation
3V ≤ V IN ≤ 9V; 0mV ≤ V CS ≤ 75mV (±3%)
1.208
1.282
V
Input & V DD Supply
V IN Input Current (I Q )
Shutdown Quiescent Current
(excluding external MOSFET gate current)
V EN/UVLO = 0V
1
0.5
2
5
mA
μA
Digital Supply Voltage (V DD )
Digital Supply Load Regulation
Undervoltage Lockout
I L = 0
I L = 0 to 5mA
V DD upper threshold (turn on threshold)
2.82
3.0
0.1
2.65
3.18
V
V
V
UVLO Hysteresis
Enable/UVLO
100
mV
Enable Input Threshold
UVLO Threshold
Enable Input Current
V EN/UVLO = 5V
0.6
1.4
0.9
1.5
0.2
1.2
1.6
5
V
V
μA
Current Limit
Current Limit Threshold Voltage
(Voltage on CS to trip current limit)
90
110
130
mV
Error Amplifier
Error Amplifier Gain
Current Amplifier
Current Amplifier Gain
Oscillator Section
20
3.7
V/V
V/V
Oscillator Frequency (f O )
Maximum Duty Cycle
Minimum On Time
Frequency Foldback Threshold
V FB = 1.0V
V FB = 1.5V
Measured on FB
360
400
85
165
0.3
440
kHz
%
ns
V
Frequency Foldback Frequency
September 2008
3
90
kHz
M9999-092908
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