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参数资料
| 型号： | MAX1545ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/43页 |
| 文件大小： | 0K |
| 描述： | IC QUICK-PWM DUAL-PHASE 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | Quick-PWM™ |
| 应用： | 控制器，Intel Pentium? IV |
| 输入电压： | 2 V ~ 28 V |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 1.85 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
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Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V CC = V DD = V SHDN = V TON = V SKIP = V S0 = V S1 = V CODE = 5V, V FB = V CMP = V CMN = V CSP = V CSN
= 1.3V, OFS = SUS = GNDS = D0–D4 = GND; T A = -40°C to +100°C , unless otherwise specified.) (Note 5)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
BIAS AND REFERENCE
Measured at V CC , FB forced above the
Quiescent Supply Current (V CC )
I CC
regulation point, OAIN- = FB,
3.2
mA
V OAIN+ = 1.3V
Quiescent Supply Current (V DD )
Quiescent Battery Supply Current
(V+)
Shutdown Supply Current (V CC )
Shutdown Supply Current (V DD )
Shutdown Battery Supply Current
(V+)
I DD
I V+
Measured at V DD , FB forced above the
regulation point
Measured at V+
Measured at V CC , SHDN = GND
Measured at V DD , SHDN = GND
Measured at V+, SHDN = GND,
V CC = V DD = 0 or 5V
20
50
20
20
20
μA
μA
μA
μA
μA
Reference Voltage
V REF
V CC = 4.5V to 5.5V, I REF = 0
1.985
2.015
V
FAULT PROTECTION
Output Overvoltage Protection
Threshold (MAX1545 Only)
Output Undervoltage Protection
Threshold
VROK Threshold
V OVP
V UVP
SKIP = V CC , measured at FB with respect
to unloaded output voltage
Measured at FB with respect to unloaded
output voltage
Lower threshold
Measured at FB
(undervoltage)
with respect to
Upper threshold
unloaded output
(overvoltage)
voltage
SKIP = V CC
13
67
-13
+7
19
73
-7
+13
%
%
%
Measured from the time when FB first
VROK Startup Delay
reaches the voltage set by the DAC code
3
ms
after startup
V CC Undervoltage Lockout
Threshold
V UVLO(VCC)
Rising edge, hysteresis = 90mV, PWM
disabled below this level
3.90
4.45
V
CURRENT LIMIT AND BALANCE
Current-Limit Threshold Voltage
(Positive, Default)
V LIMIT
CMP - CMN, CSP - CSN; ILIM = V CC
27
33
mV
Current-Limit Threshold Voltage
(Positive, Adjustable)
V LIMIT
CMP - CMN,
CSP - CSN
V ILIM = 0.2V
V ILIM = 1.5V
7
72
13
78
mV
Current-Limit Threshold Voltage
(Negative)
V LIMIT(NEG)
CMP - CMN, CSP - CSN; ILIM = V CC ,
SKIP = V CC
-30
-42
mV
(V CMP - V CMN ) - (V CSP - V CSN ); I CCI = 0,
Current-Balance Offset
V OS(IBAL)
-20mV < (V CMP - V CMN ) < 20mV,
-3
+3
mV
1.0V < V CCI < 2.0V
_______________________________________________________________________________________
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